CTS ATTENUATION AND CROSS POLARIZATION MEASUREMENTS … · 2013-08-31 · CTS ATTENUATION AND CROSS POLARIZATION MEASUREMENTS AT 11.7 GHz W. J. Vogel Electrical Engineering Research

CTS ATTENUATION AND CROSS POLARIZATION MEASUREMENTSAT 11.7 GHz

W. J. VogelElectrical Engineering Research LaboratoryThe University of Texas at Austin10100 Burnet RoadAustin, TX 78758

Final Report Covering the Period 1 February 1978 to 31 January 1979Under Contract NAS5-22576May 1979

Prepared for

GODDARD SPACE FLIGHT CENTER

Greenbelt, MD 20771

https://ntrs.nasa.gov/search.jsp?R=19800007049 2020-04-24T03:39:43+00:00Z

CTS ATTENUATION AND CROSS POLARIZATION MEASUREMENTSAT 11.7 GHz

W. J. VogelElectrical Engineering Research LaboratoryThe University of Texas at Austin10100 Burnet RoadAustin, TX 78758

Final Report Covering the Period 1 February 1978 to 31 January 1979Under Contract NAS5-22576May 1979

Prepared for

GODDARD SPACE FLIGHT CENTER

Greenbelt, MD 20771

kM»rf SufeHto

CTS Attenuation and Cross PolarizationMeasurements at 11.7 GHz

I W. J. Vogel10. W«t Unit Na

The University of Texas at AustinElectrical Engineering Research Lab10100 Burnet Rd. , Austin, TX 78758

tl. Owma «r Gnn Ma.

. NAS5-22576

NASA Goddard Space Flight CenterGreenbelt, MD 20771E. Hirschmann, Code 760. 1 Tech. Office

'A Trot of M«port «id taied

Fm 78 - 31 Jan 79

Attenuation and cross-polarization isolation at 11.7 GHz,measured at Austin, Texas by receiving the circularlypolarized emissions from the CTS satellite are presented.The data are a 12 month summary for Feb 78 to Jan 79.For . 016% of the time the attenuation was greater than10 dB, the isolation was less than 21 dB and the rainrateexceeded 55 mm/hr. Ice depolarization has been observedfrequently.

0.Rain cross -polarizationCircular polarizationSatellite -earth linkRain attenuation

U u21.1

133

•f* ah ly At Mieal Ttetaal Wemtioa S*nr*t. SflriB|f»kl. Vic|ua Slil

TABLE OF CONTENTS

Page

I. Introduction 1

II. Receiver Description 1

III. Meteorological Data 3

IV. Yearly Data Summary 3

V. Conclusions 19

Appendix: Monthly Data

Distribution Plots

Distribution Tables

Time of Day Tables

Duration Data

Isolation vs. Attenuation

11

LIST OF FIGURES

No. Page

1 12 Month Attenuation Exceedence Plot ~ 5

2 12 Month Isolation Distribution Plot 6

3 12 Month Rain Rate Exceedence Plot 7

4 12 Month Isolation vs. Attenuation 8

5 Logarithmic Fits to Isolation vs. Attenuation 10

6 The Contribution of Ice Depolarization to all

Depolarization Events 11

111

LIST OF TABLES_ f - ~ .

No. Page

1 Dual Polarization Receiver Characteristics 2

2 Precipitation and Thunderstorms for Austin 3

3 Exceedence Data for Feb 78 to Jan 79 13

4 Time of Day Data for Feb 78 to Jan 79 - Attenuation 14

5 Time of Day Data for Feb 78 to Jan 79 - Isolation 15

6 Time of Day Data for Feb 78 to Jan 79 - Rain Rate 16

7 Duration Data for Feb 78 to Jan 79 17

8 Isolation vs. Attenuation Feb 78 to Jan 79 18

x

IV

I. INTRODUCTION

The nominally right hand circularly polarized 11.7 GHz beacon

transmitter on the CTS satellite has been monitored at The University

of Texas at Austin for the periods of its operation. The data presented

in this report cover the attenuation and isolation measurements made

•with a dually polarized receiver and rain rate measurements made with

a single tipping bucket rain gauge during the period of February 1978 to

January 1979. Reports to be issued later will cover the other two ex-

periments going on in connection with the one presented here. They are

(1) the adjustable receiver polarization experiment and (2) COMSTAR

attenuation and diversity measurements at 19, 28 and 13 GHz. In

addition, at the conclusion of the CTS experiment a summary report

covering all the data collected will be issued. The data collected before

February 1978 have been summarized in two previous reports. The

first of these also contains a detailed description of the receiver.

II. RECEIVER DESCRIPTION

The pertinent characteristics of the receiver and data collection

system are given in Table I.

Vogel, W. J. and Straiton, A. W. , 1977, "CTS Attenuation and Cross -Polarization Measurements at 11. 7 GHz, " Final Report under ContractNAS5-22576 for 12 June 1976 - 30 August 1976.

Vogel, W. J. , 1978, "CTS Attenuation and Cross-polarization Measure-ments at 11.7 GHz, " Final Report under Contract NAS5-22576 for 18 Oct-ober 1976 - 31 January 1978.

TABLE I

DUAL POLARIZATION RECEIVER CHARACTERISTICS

Antenna: 3m parabola, prime focus feed, f/D = . 375program pointing to . 02°, elevation « 50°

Feed: turnstile polarizer

Polarization: RHC, LHC (nominally), matched by adjustingfor minimum power in cross-polar channelduring clear-air propagation

Isolation: better than 45 dB with optimum pointing

Fade margin: 30 dB for co-polarized channel45 dB for cross-polarized channel

Calibration: Precision attenuated 11.7 GHz signal injectedinto front end

Output: logarithmic amplitudes, recorded on stripchart,digitized at 5 samples per minute

in. METEOROLOGICAL DATA

The total precipitation for each month and the number of thunder-

storms, as reported by the Weather Service are given in Table II.

TABLE II

PRECIPITATION AND THUNDERSTORMS FOR AUSTIN

Month Rain (mm) No. of Thunderstorms

Feb 78MarAprMayJuneJulyAugSeptOctNovDec 78Jan 79TOTAL

502144147763038113351397254819

2231051140611

36

Integrating over the rain rate distribution measured at the receiver

site from 5 mm/hr to 150 mm/hr gives a total of 480 mm. This

means that about 40% of the rain fell at rates below 5 mm/hr. Com-

paring the total rain and number of thunderstorms to their long term

average of 846 mm and 41 thunderstorms, it can be concluded that this

reporting period had close to average weather.

IV. 12 MONTH SUMMARY OF THE ATTENUATION AND CROSS-POLARIZATION ISOLATION MEASUREMENTS

The percentage of time the attenuation exceeded specific values is

shown in Figure 1. For example 10 dB were exceeded for 1. 6 x 10"

percent of the time. From Figure 2 it can be seen that for the same

percentage the isolation was less than 21 dB. The isolation is defined

as the power ratio between the co-polarized and cross-polarized channel,

or when expressed in dB:

CPI(dB) = Co-polarized signal level (dB) -

cross-polarized signal level (dB)

where the signal levels are measured with respect to some arbitrary

reference. In this case this reference was the clear air level of the

co-polarized signal. As shown in Figure 3 for 1.6 x 10 percent of

time the rain rate exceeded 55 mm/hr.

The distribution curves define statical relationships between the

measured parameters which can be used for modelling. For example,

from the equal probability pairs of attenuation A and cross-polarization

isolation CPI one can derive that the two are statistically related as

CPI = 33.4 - 13. 1 log A.

This equation represents the least squared error fit to the points indi-

cated in Figure 5.

The density function of the quantities A in the range 0 to 30 dB

and CPI in the range 10 to 40 dB was calculated from the data. From

this the curves given in Figure 4 were derived. They show the 10% ex-

pectation, median and 90% expectation of exceeded isolation for each

attenuation. For instance the three points at 5 dB mean that for

11.7 GHZ ATTENUATION DISTRIBUTIONAUSTIN, TEXAS

10.0000 t i i i t t t i i I t t i i

1.0000owQwwuXwCO

2 o. 1000H

§w

oH

§U

0.0100 - -

0.0010 --

I i i i i j i t t t \ t i t t I i i i i II I I I I I I

Feb 78 - Jan 79

0.0001 i i ..hi < .|iin | i • » » | < " • ! • • . » < I10 15 20 25 30 35

ATTENUATION IN DB

Fig. 1 12 Month Attenuation Exceedence Plot

enw>—ioen

§

OCO

2'H- 1

H

u

11.7 GHZ ISOLATION DISTRIBUTIONAUSTIN, TEXAS

10.0000

1.0000

0. 1000 - -

0.0100 _ _

o.ooio --

0.0001

I I I I I I I I i I I t I I I I I I I I t I I I I I I I I I I I I I

Feb 78 - Jan 79

I I I I I I I I ' I I I I I I I

10 15 20 25 30 35 40

ISOLATION IN DB

10.0000-

8XW

Wt-HH

o

Ift!

1.0000--

0. 1000- -

0.0100 - -

0.0010.--

0.0001

RAIN RATE DISTRIBUTIONAUSTIN, TEXAS

I . . . I . . - . I

I i •

20

U -̂4Feb 78 - Jan 79

I ' • ' I40 60 80 100 120 140

RAIN RATE IN MM/HR

Fig. 312 Month Rain Rate Exceedence Plot

. 8

OF DATA HAVE ISOLATIONEXCEEDING ORDINATE

FEB. 78 - JAN. 79

40

Attenuation - dB

Fig. 412 Month Isolation vs. Attenuation

4 < A < 5 dB

90% of the data collected had CPI better than 23 dB, 50% of the data

(the median value) had isolation better than 28 dB and for 10% of the

data the isolation was better than 33 dB. These curves given some

indication of the consistency of the relationship between the two

parameters. It should be noted that the curves are better defined in

the lower attenuation range where they are based on more samples.

The logarithmic fit to these three curves was determined to be:

10%: CPI = 42. 9 - 17. 5 log A (r2 = . 94)

50%: CPI - 35. 8 - 13. 4 log A (r2 = . 89)

90%: CPI = 31.5 - 12. 6 log A (r2 = . 90)

2 2The value of r is a measure of the quanlity of the fit. If r =1 all

points lie exactly on the line and if r =0 the points were randomly

distributed. (For the equal probability fit r was . 99). The curves

defined by the above equations have been added to Figure 5. It is

apparent that the equal probability curve predicts less isolation than

the median data curve, a fact related to the particular shape of the

density curve.

To estimate the contribution of ice depolarization to the isolation

statistics, Figure 6 shows the percentage of ice depolarization in the

total depolarization events. The points were calculated by

Percent = (Time the isolation •was less than the abscissa

and the attenuation less or equal 1 dB)/(Time

the isolation was less than the abscissa ) x 100.

10

5 6 7 8 9 K> 15ATTENUATION - dB

20 25 30

Fig. 5 Logarithmic Fits to Isolation vs. Attenuation

11

60

50

40

30

oa:iu

20

10

10 15 20 25

ISOLATION - dB

30

Fig. 6 The Contribution of Ice Depolarization to all

Depolarization Events

12"

The interpretation of this curve is that caution has to be exercised

when using the logarithmic fits to the CPI - A relationship in con-

junction with attenuation statistics to predict depolarization at low

attenuations. The derived isolation statistics will need correction

as per Figure 6 to account for the contribution of ice depolarization.

The excess depolarization will decrease with increasing attenuation.

Also part of the data summary are Tables 3 - 8 .

Table 3 gives the distribution data in minutes. These were used

to draw the exceedence plots Figures 1 - 3 .

Tables 4, 5 and 6 gives distribution data resolved into time of

day of the occurrence of fades, depolarization and rain rate. While

the density of the data events is not uniform over the 24 one-hour

intervals, it is hard to make a general statement as to -whether events

are more serious at certain times than at others. The times are

Universal Time (GMT), which is 6 hours advanced from Central

Standard Time. Maybe it will be possible, when all the data collected

will be analyzed in this fashion, to discern if the probability of data

events is evenly distributed over all 24 hours of a day. Table 7 orders

the data events by their duration. It gives the number of events for

each threshold level and their duration. The data show that the events

with higher attenuation, lower isolation or higher rain rate tend to be

fewer and shorter. The lower number of events when the rain rate

exceeded 5 mm/hr for short durations is due to the fact that the rain

TABLE 3

13

UNIV OF TEXAS CTS EXCEEDENCE DATA FOR FEB 78 TO JAN 79

ATTENUATION EXCEEDEDDB FOR MINUTES

123456789101112131415161718192021222324

252627282930

2413906544416310228178138104837159504440373025191510755

54332

ISOLATION LESS THANDB FOR MINUTES

353433323130292827262524232221201918171615141312

11109876

3485290923551890148711609197305884543202101451128262453322167310

000000

5101520253035404550556065707580859095100105110115120

125130135140145150

RAINRATE EXCEEDEDMM/HR FOR MINUTES

15738015654213152461851501169878675745403327221814111086

433222

14

TABLE 4

UNIV OF TEXAS GTS TIME OF DAY DATA FOR FEB 78 TO JAN 79

TIME OF DAY<GMT>

MINUTES THE ATTENUATION EXCEEDED3 6 10 20 25 30 DB

012345678910111213141516

17181920212223

1234567891011121314151617

18192021222324

7081449144158475807130101

28

274412013859

26182162400251100105016

1612447328

10175090016000001012

40100216

11510I00100000003

1010000

01400000000000000

0000000

00000000000000000

0000000

15

TABLE 5

UtilV OF TEXAS CTS TIME OF DAY DATA FOR FEB 78 TO JAN 79

TIME OF DAY MINUTES THE ISOLATION WAS LESS THAN(GMT) 35 30 25 20 15 10 DB

0 11 22 33 44 55 66 77 88 99 1010 1111 1212 1313 1414 1515 1616 1717 1618 19

19 2020 2121 2222 2323 24

140103129211303293182251952091301732241161861321095038

88977243109

81431954771467846506650407919361938247

4216381058

1968

21465603620552801216140

241

12224

515108002400000001030

30001

0000010040000000010

10000

0000000

•00000000000

00000

16

TABLE 6

UNIV OF TEXAS CTS TIME OF DAY DATA FOR FEB 78 TO JAN 79

TIME OF DAY(GMT)

MINUTES THE RAINRATE EXCEEDED5 25 50 75 100 125 MM/MR

01234567891011121314151617181920

212223

123456789101112131415161718192021

222324

1137559110119119533560

1143889982325164140188490

522378

17249353301323338012140101581

2116

3515

3125601811

18603200086071

101

272309006100100043020

000

t30104001000000021010

000

0t

•001000000000010000

000

17

TABLE 7

UNXV OF TEXAS CTS DURATION DATA FOB FEB 78 TO JAN 79

DURATIONINTERVAL

MIN

DURATIONINTERVAL

MIN

01248163264

1248163264**

DURATIONINTERVAL

MIN

0124

1248

8 1616 3232 6464 **

EVENTS WHEN ATTENUATION EXCEEDED

3 6 10 20 25 30 DB

329

111311920

EVENTS

35

43411278725228134

EVENTS

5

2185837301843

3171297100

WHEN

30

32870503416731

WHEN

25

562424810100

114652000

ISOLAT

25

1282415116110

161010000

ION WAS

20

217322000

20100000

LESS

15

141000000

00000000

THAN

10 DB

00000000

RAINRATE EXCEEDED

50

9612432000

75 1

823110000

00

580000000

125 MB/HR

210000000

18

TABLE 8

UNIV OF TEXAS CTS ISOLATION VS ATTENUATION FEE 78 TO JAN 79

ATTENUATION 101 50X 90XINTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB OB DB DB

0 1 38 34 301 2 3 7 3 2 2 62 3 3 7 3 1 2 53 4 3 5 2 9 2 54 5 3 3 2 8 2 35 6 3 0 2 6 2 46 7 29 26 237 8 2 9 2 5 2 18 9 2 7 2 2 2 09 10 25 21 20

10 11 24 21 1911 12 24 20 1812 13 23 20 1713 14 22 19 17

14 15 22 19 1715 16 23 16 1516 17 23 23 1517 18 20 16 1518 19 18 15 1419 20 19 17 1420 21 20 17 1421 22 20 20 1322 23 20 20 1323 24 18 18 12

24 25 ** ** **25 26 16 16 1426 27 17 17 1427 28 16 16 1528 29 17 17 1029 30 19 19 17

19

rate is calculated from the interval between accumulating . 254 mm

of precipitation. Therefore short durations of low rainfall rate are

not resolved.

The data in Table 8 were used to plot Figure 4. They give the

spread of isolation values for the measured attenuations.

The data for each month of this reporting period are presented

in the Appendix. Given are the distribution plots for attenuation,

isolation and rain rate and the same set of numerical tables as has

been included for the yearly summary, i. e. distribution tables, time

of day tables, the duration data and the isolation vs. attenuation table.

V. CONCLUSION

Attenuation and cross-polarization isolation data have been pre-

sented for a 12 month period. During this time the weather was close

to the long term mean. Fades exceeded 10 dB for about .02 percent of

time. With the same probability isolation was reduced below 21 dB.

The data events were not evenly distributed over the time of day,

however it is hard to identify a distinct pattern from the 12 months

data.

APPENDIX

Al

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i i t i I i t i i I t i i i I t i i i I t i i i l l i i i

I i i • • I i i i »" I i • • • I

I 1 I I

Feb 78

10 15 20 25 30 35

ATTENUATION IN DB

A3


10.0000

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0.0100

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J^ I t I t I i I I I I I I I I I i t I t I t I I I I I I I

Feb 78

i i i i

10.' I . . . . I . . . . I . . . . I .... I

15 20 25 30 35 40

ISOLATION IN DB


A4

10.0000-

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0.0001

I i I I I I I I I I I I t • I I I I I I I I I

I I I I I I

Feb 78

I ' * * I ' * ' I 1 1 1 !

20 40 60 80 100 120 140

RAIN RATE IN MM/HR

AS

U N I V OF TEXAS CTS EXCEEDENCE DATA FOR 2 78

ATTENUATION EXCEEDED ISOLATION LESS THAN RAINRATE EXCEEDEDDB FOR MINUTES DB FOR MINUTES MM/HR FOR MINUTES

1 149 35 574 5 1162 42 34 431 10 493 28 33 318 15 264 29 32 225 20 235 16 31 166 25 156 12 30 113 30 137 10 29 72 35 li8 7 28 49 40 89 5 27 37 45 7

19 4 26 27 59 611 4 25 , 21 55 512 3 24 14 62 413 2 23 9 65 314 2 22 7 73 315 1 21 5 75 316 .1 20 4 S3 217 1 19 3 35 218 1 18 2 90 119 1 17 1 95 12£) 1 16 1 133 121 1 15 1 135 122 0 14 1 11® 123 d 13 3 115 024 » 12 0 128 825 0 11 3 125 026 9 10 3 130 0

27 8 9 0 135 @28 9 8 0 140 02 9 9 7 0 1 4 5 @3 3 0 6 0 1 5 9 0

A6

UNIV OF TEXAS CIS TIME OF DAY DATA FOR 2 78

T I M E OF DAY MINUTES THE ATTENUATION EXCEEDED(GMT) 3 6 112 ' 26 25 39 DB

0 1 9 3 0 0 8 012 s 0 0 0 a . . a2 3 0 0 0 0 3 03 4 0 0 8 3 0 045 3 3 3 0 0 i5 6 3 0 0 0 0 06 7 0 9 3 3 0 37 3 3 3 3 0 0 38 99 1 ®

13 1 11 1 1 21 2 1 31 3 1 41 4 1 51 5 1 61 6 1 717 18is 1919 2020 2121 2222 2323 24

033333(398

17000

J .'23

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12000000

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809090030

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A7

UNIV OF TEXAS CTS TIME OF DAY DATA FOR 2 78

TIME OF DAY MINUTES THE ISOLATION WAS LESS THAN«GMT) • 35 30 25 28 15 18 DB

0 1 0 0 @ © g | 01 22 33 44 55 66 77 88 .99 1@

13 1 11 1 1212 1313 1414 1515 1616 1717 1818 1919 2323 2121 22

22 2323 24

7S3

18•3S0

a6

244477778998643332

310

a2

2001•s80S369

151 6

7121817

6003

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330000Sa3•3a•330S13000

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a003£303i32@39ia90es0

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A8

U N I V OF TEXAS CIS TIME OF DAY DATA FOR 2 78

JED125 MM/HR

TIME OF DAY( G M T )

MINUTES THE RAINRATE EXCEEDED5 25 53 75 IS&

0123A.56789

1§1112131A151617181929212223

123456789

191 112131415161718192021222324

003a0

333@334

261510

41926

733@•3

00

©33y002302000381ar0013

0a0030030

080330316000a@

a90

0000a000030eQ30030S

j .033i0303II0030ii1aa000

e09

. 13ia30030

00

00

0S0asa00

9 a

A9

UNIV OF TEXAS CIS, DURATION DATA FOR 2 78

EVENTS WHEN ATTENUATION EXCEEDEDDURATI ONINTERVAL

MIN

S 11 22 44 88 1616 3232 6464 **

DURATIONINTERVAL

MIN

1248

1 63264

1248163264**

DURATIONINTERVAL

MIN

42239Ia3

6

1021Si93 3

3

25

8

0

0

.9

30 DB

EVENTS WHEN ISOLATION WAS LESS THAN

35 30 25 28 15 18 DB

15748271313

6a%

1381282S193

2512190313

111€130a0

i0a333a9

a0

EVENTS WHEN RAINRATE EXCEEDED

5 25 5« 75 183 125 MM/HR

1248

1 63264

1248

163264**

27531

542

53

83G3

8003033

40

33i

1

A10

U N I V OF TEXAS CIS ISOLATION VS ATTENUATION 2 78

ATTENUATIONINTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB

8 11 22 33 44 55 66 77 88 99 10

13 111 1 1212 1313 1414 1515 1616 17

17 1818 1919 2S20 2121 2222 2323 2424 2525 2626 2727 2828 2929 33

10%DATA HAVE

D3

383733373028272626222123201917****

**15161513**13************

50%ISOLATION

DB

34333130302827232622212®2 SI1917****

**15161513*#13********.**#*

99%GREATER

DB

30282928-2522222322201819181817****

**15131513**13****#*******

All

10.0000

1.0000Q

§wwoXw

g2 o. 1000H

WHH

fcoHzwu

0.0100

0.0010 --

0.0001

I I i


i t i i i i I i I i i I t i i t I i i i i I i i t i [ j 11 i

i r

Mar 78

In" • !• in I - " ' ! • '-"I " " I10 15 20 25 30 35

ATTENUATION IN DB

A12


10.0000

1. 0000 _.

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0. 1000 --

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0.0010 --

0.0001

i i i i I i i i i L_1_J_L_1_L_LJ__L*_L_Lt i t ' t i i i i l i t i i i

Mar 78

i i • i I i i • • I i i i i J10 15 20 25 30 35 40

ISOLATION IN DB

10.0000-

1.0000- -

8X!

H<;0?

0. 1000-4-

0.0100- .

8H

§u0,

0. 0010- •

0.0001

I t I


A13

Mar 78

I • • • I i i r20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A14

UNIV OF TEXAS CTS EXCEEDENCE DATA FOR 3 78

ATTENUATION EXCEEDED . I S O L A T I O N LESS THAN RAINRATE EXCEEDEDDB FOR MINUTES DB FOR MINUTES MM/HR FOR MINUTES

1 32 35 127 5 372 18 34 112 10 133 14 33 83 15 134 11 32 52 28 135 9 31 29 25 126 8 33 13 30 IS7 7 29 IS 35 88 7 28 7 40 79 5 27 6 45 5

10 5 26 5 50 411 4 25 5 55 312 3 24 4 60 313 3 23 4 65 314 2 22 2 73 215 2 21 2 75 216 2 2S 1 83 2

17 2 19 9 85 218 2 18 0 93 119 1 17 (3 95 120 -1 16 3 103 121 0 15 & 105 122 § 14 0 110 123 0 13 0 115 324 0 12 0 120 025 0 11 8 125 026 0 IS 0 133 027 a • 9 0 135 S28 0 8 £1 140 029 0 7 0 145 03 3 0 6 3 1 5 0 &

A15

UNIV OF TEXAS CIS TIME OF DAY DATA FOR 3 78

TIME OF DAYCGMT)

ai2345678

9191 1121314151617181920212223

123456789

101112131415161718192921222324

MINUTES THE ATTENUATION EXCEEDED3 6 IS 23 25 38 DB

3a8140aa0

09

8030

339

005

30B

a8a

9

30

13

i

a3§

9a

30a

03g03B3&.0

0a0

a0

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A16

U N I V OF TEXAS CIS TIME OF DAY DATA FOR 3 78

TIME OF DAY( G M T )

i123456789

13

11121314151617181920212223

123456789

1(911

121314151617181920121222324

MINUTES THE ISOLATION WAS LESS THAN35 . 33 25 20 15 19 DB

380309a

43

232

21

010

9&

9a85013

800

09

00

3053

3

393

i0

00

00

.0

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A17

U N I V OF TEXAS CIS TIME OF DAY DATA FOR

TIME OF DAY(GMT)

0123456789

li1112

1314151617181929212223

123456789

131 11213

1415161718192021222324

MINUTES THE RAINRATE EXCEEDED5 25 5S 75 190

383

0

233

0003a

ai•3

g

026

0&a0§a00a

0

. 12090030S00

34S06020@09

020003a0000

&&ai

3 78

125 MM/HR

00000000

a@B

0i3

00

00

S0

a

A18

U N I V OF TEXAS CTS DURATION DATA FOR 3 78


3 6 10 20 25 30 DB

DURATIONINTERVAL

KIN

01248163264

1248163264** .

DURATIONINTERVAL

WIN

0

1248163264

1

248163264**

DURATIONINTERVAL

WIN

1248

163264

1248

163264**

10001

001000

1001

0

20000

s

000000

00000


35

29

321

30

5

291

25

6

I10

2®

1

039

15

0

0139

10 DB

3913

02130

a3

0 0

0@a


5 25 50 75 100 125 MM/HR

04210

0

0100

3200000

5300000

40

00

20000000

A19

UNIV OF TEXAS CTS ISOLATION VS ATTENUATION 3 78

ATTENUATION 10% 50% 93%INTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB DB DB DB

0 1 3 9 3 9 3 11 2 3 4 3 3 3 123 38 31 2934 35 35 3945 38 38 28

56 38 38 2767 27 27 2678 31 31 2689 29 29 249 10 24 24 22

13 11 28 28 231 1 1 2 24 24 2212 13 26 26 2213 14 22 22 231 4 1 5 ** #* **15 16 24 24 221 6 1 7 19 19 1917 18 ** ** **18 19 22 22 2219 23 19 19 1820 21 20 20 1921 22 20 2B 2322 23 20 20 2923 24 ** ** **24 25 ** ** **25 26 ** ** **26 27 ** ** **27 28 **• ** **28 29 ** ** **29 38 ** ** **

A20

10.0000

1.0000 -UQWQWWUXw

O 0. 1000 7-

p2wHH

w

0.0100

WU

PU

o.ooio -1-

0.0001


ti i i I i t i i I t I i i I i i i i l t i t t I t i t i t i i t i

Apr 78

i i • • I i i ' • I i i i i ! ' • " !10 15 20 25 30 35

ATTENUATION IN DB

A21


10.0000

Oen

1.0000 _ .

VD53o«

v~ o. 1000 -4-§

H 0.0100 J.

oH

u

PH

o.ooio --

o.oooi

• | M " | M M | " t t i i I I i i

Apr 78

i i » i I i i * • I i i i i J i • i i J i • • • J • i10 15 20 25 30 35 40

ISOLATION IN DB

A22RAIN RATE DISTRIBUTION

AUSTIN, TEXAS

10- 0000-

1.0000- -

QWQ

WUXw2 o- iooo- .

w

H 0-0100

o

uwcu

0.0010--

0.0001

I I I l t l l j l l l j > i t l l t l j l l t l l t l l

Apr 78

[ i i—i [ i i i

20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A23

UNIV OP TEXAS CTS EXCEEOENCE DATA FOR 4 73


1234

56789If1112131415161718192121222324252627282930

137685138

2822211917161514131211If7521


35343332

313f2928272625242322212f191817161514131211If9876

186163144129

1119487786962524436322824191613If41

5If152f

253f354f455f556f657f758f859f95IffIf 5llf11512f12513f13514f14515f


Iff715642

3539262521191412986543211111

A24


TIME OF DAY(GMT)

MINUTES THE ATTENUATION EXCEEDED3 6 If 2fl 25 3i DB

• •123456789If1112131415161718192f212223

123456789If1112131415161718192f21222324

3114f5

2

A25


TIME OF DAY(GMT)

MINUTES THE ISOLATION WAS LESS THAN35 30 25 20 15 10 DB

012345678f '1011121314151617181920212223

123456789101112131415161718192021222324

00

172

1114

10.

3557

049

3542

012

3314

24

A26

UNIV OF TEXAS GTS TIME OF DAY DATA FOR

TIME OF DAY(GMT)

•123456789

If1112131415161718192f212223

1234567891011121314IS161718192f21222324

MINUTES THE RAINRATE EXCEEDED5 25 50 75 Iff

4 78

125 MM/HA

1283f38

•21

256

171f2

A27

UNIV 07 TEXAS CTS DURATION DATA FOR 4 76


3 6 If 20 25 30 OB

2

DURATIONINTERVAL

HIN

i2

124

4 88 1616 3232 6464 **

DURATIONINTERVAL

HIN

1248163264

1248163264**

DURATIONINTERVAL

MIN

1248163264

1248163264**

301

3

•I

110

00100

100

0100'0


35 30 25 20 15 10 DB

183324120

185331010

153300010'

32

91


01112001

25

71202000

50

120120000

75

18

100 125 HM/HR

2

A28

UNZV OF TEXAS CTS ISOLATION VS ATTENUATION 4 76

ATTENUATION lit 50X 90SINTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB DB DB OB

0 1 3 8 3 5 2 91 2 3 6 3 3 2 72 3 3 i 2 5 2 23 4 2 7 2 4 2 04 5 2 4 2 3 1 95 6 2 4 2 3 1 96 7 2 3 2 3 1 97 8 2 0 2 f 1 98 9 2 2 2 2 1 89 It 20 20 18

!• 11 19 19 1411 12 17 17 1612 13 19 19 1713 14 17 17 1514 15 16 16 1415 16 16 16 1516 17 16 15 1417 18 16 16 1418 19 15 15 1319 20 15 15 1220 21 15 15 1321 22 14 14 1322 23 ** ** **23 24 ** ** **24 25 ** ** **25 26 ** ** **

26 27 ** ** **27 28 ** ** **28 29 ** ** **29 30 ** ** **


10.0000

1.0000 -4-QWQWWOX

2 o. 1000H

HHH

W .i—iH 0.0100fnoH

§u

0.0010 - .

0.0001

I I I I I I I I i I t I I I I I I I I I I I I I I I I I I I

i i

May 78

I . . . . I . . . . 1 1 . 1 . 110 15 20 25 30

A29

35

ATTENUATION IN DB

A30


10-0000

1.0000

Owfl

§

OCO

HfnOH2yu

0. 1000 --

0.0100 -.

0.0010 --

0.0001

10

I I I I I I I I I » I I I I 1 I I i I I II I I I I I I I I I I I I I I I I I » I I I I 1 1 I i I I I I I I

May 78

I . . • ' I • • i.; I. » • »I » • • » I • • • • I15 20 25 30 -35 40

ISOLATION IN DB


A31

10.0000-

1.0000- -

QWQ«wuXw~ o. 1000-1-

§HhOH2yu«w

0.0100-.

0.0010- -

0.0001

I I I t l i j l l l j l l i l I I I I II I I'' • IMay 78

I • • ' I20 40 60 80 100 120 140

RAIN RATE EN MM/HR

A32



123456789101112131415161718192021222324252627282930

270160117978269574739322922181614121110987655543320


35343332313029282726252423222120191817161514131211109876

276241208175153127103857461504439342719118532100000000

5101520253035404550556065707580859095100105110115120125130135140145150


2201351018977665648413833302722201714121087653222111

A33


TIME OF DAY<GMT>


01

234567891011121314IS1617181920212223

12

34S6789101112131415161718192021222324

328

1101

130000000000000101

10822

161

800

110000000000000817313

101

7006000000000000040211

11

S001000000000000010000

01

4000000000000000000000

; fl' 0

0000000000000000000000

A34

UNXV OF TEXAS CTS TIME OF DAY DATA FOR 5 78


0 112 29 6 1 1 0 02 33 4 4 2 0 0 0 0

4 55 66 77 88 99 1 0 0 0 0 0 0 0

10 11 13 10 1 0 0 01 1 1 2 0 0 0 0 0 012 1313 1414 151 5 1 6 0 0 0 0 0 01 6 1 7 0 0 0 0 0 017 181 8 1 9 0 0 0 0 0 019 2020 21 14 3 0 0 0 021 22 18 10 5 0 0 022 23 10 4 1 0 0 023 24 27 17 7 0 0 0

3529194

39449000130000000016141810

28692

32400001000000000

113104

11160

01000001000000007051

5150

0500000000000003000

0000

0100000000000001000

A35


TIME OF DAY MINUTES THE RAINRATE EXCEEDED(GMT) 5 25 50 75 100 125 MM/HR

0 11 22 33 44 55 6

6 77 88 99 10

10 1111 1212 1313 1414 1515 1616 1717 1818 1919 2020 2121 2222 2323 24

2055200555

000050000000082131821

82490025

000000000000030252

31250018

000000000000000100

272009

000000000000000000

130004

00000000000\0000000

0' 10001

000000000000000000

A36

UNIV OF TEXAS CTS DURATION DATA FOR 5 78

DURATIONINTERVAL

HIN

64 **

DURATIONINTERVAL

WIN


3 6 10 20 25 30 DB

00

0

0

01248

1632

1248

163264

5123520

7235200

5214000

4101000

2010000

0 0 0


35 30 25 20 15 10 DB

0 11 22 44 88 16

16 3232 6464 **

DURATIONINTERVAL

HIN

398388310

EVENTS

5

288755000

WHEN

25

71450000

RAINRATE

50

134110000

40000000

00000000

EXCEEDED

75 100 125 MM/HR

01248

163264

1248

163264

**

01143320

36303100

141212000

163110000

310000000

100000000

A37

UNIV OF TEXAS GTS ISOLATION VS ATTENUATION 5 78

ATTENUATION 10X 50X 90XINTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB DB DB DB

01 39 39 3112 38 33 2923 35 32 2834 33 30 2745 35 29 265 6 32 27 2567 30 26 2378 33 25 2389 31 24 209 10 27 22 2010 11 25 20 1911 12 21 20 1912 13 25 25 1813 14 21 21 1814 15 24 24 1815 16 21 21 1716 17 23 23 1917 18 26 26 1718 19 17 17 1519 20 26 26 1420 21 26 26 1321 22 17 17 1322 23 19 19 1323 24 18 18 1224 25 ** ** **25 26 16 16 1426 27 17 17 1427 28 16 16 1528 29 17 17 1029 30 19 19 17 *

A38


10.0000

1.0000 -4-

wwUXwCO

O 0. 1000H

H 0.0100 J-

oH

§u

0.0010 - -

0.0001

11 i I !• 11 •! I Mi I i I i «l f i l i I l i • i I

10 15 20

June 78

. . . . l i i • • ! . i n h < • • ! • • • • ! » i < • I25 30 35

ATTENUATION IN DB

A39


10.oooo

i.oooo _.

C/Dwi— iU

§o.1000

H o.oioo 4-oH

b

OH

o.ooio --

0.0001

II I I I I I I I I I I I I I I I I I I I I I I I I I I I I I III

i i I i i i ' | i i i i

June 78

10-Kr^-h

15 20 25 30 35 40

ISOLATION IN DB


AUSTIN, TEXAS

10.0000-

wUXw

a

HfcoH

iutfa

1.0000--

o.iooo-4-

0.0100 -.

0.0010--

0.0001

i i i j t i t I ii t I t i i I i i i I it t I i i i I

i • • • i i i i 1 • • ' i

June 78

20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A41



1 257 35 320 5 1952 127 34 312 10 1133 103 33 296 15 804 82 32 275 20 625 66 31 253 25 436 52 30 237 30 33

7 38 29 222 35 228 30 28 188 40 179 23 27 163 45 1110 17 26 127 50 911 12 25 80 55 812 11 24 50 60 713 10 23 36 65 514 9 22 25 70 515 9 21 14 75 416 8 20 11 80 417 7 19 9 85 318 6 18 6 90 319 5 17 2 95 220 3 16 0 100 221 1 15 0 105 222 0 14 0 110 223 0 13 0 11524 0 12 0 12025 0 11 0 12526 0 10 0 13027 0 9 0 1352 8 0 8 0 1 4 0 029 0 7 0 145 030 0 6 0 150 0

A42


TIME OF DAY(GMT)


01234567891011121314151617181920212223

123456789101112131415161718192021222324

3100

31400000000000

20000000

16

1000

13000000000000

16000000

13

0000000000000000

120000005

000000000000000030000000

000000000000000000000000

000000000000000000000000

A43

UNIV OF TEXAS CTS TIME OF DAY DATA FOE 6 78


0 11 22 33 44 55 66 77 88 99 10

10 1111 1212 1313 1414 1515 1616 1717 1818 1919 2020 2121 2222 2323 24

300

116060603030

00000000

22000000

17

1900

35556030

500000000

19000000

14

000

162

36100,0000000

13000000

12

0000000000000000

100000001

000000000000000000000000

000000000000000000000000

A44


TIME OF DAY(GMT)

0123

4567891011121314151617181920212223

1234

567891011121314IS161718192021222324

MINUTES5

370244

5817070000000019000000

11

THE RAINRATE25 50

900

21

000000000000

110000001

0002

0000000000070000000

EXCEEDED75

0001

0000000000004

0

0000

100

0000

0000000000002

0

0000

125 MM/HR

00

0

00000000010000000

A45

UNIV OF TEXAS GTS DURATION DATA FOR 6 78

DURATION EVENTS WHEN ATTENUATION EXCEEDEDINTERVAL

M I N 3 6 1 0 2 0 2 5 3 0 D B

0124

1248

8 16

16 3232 6464 **

DURATIONINTERVAL

MIN

1246

1248

1616 3232 6464 **

DURATIONINTERVAL

MIN

01248

124816

16 3232 6464 **

01010

210

80013

000

21101

000

00

000

0

0

0

0000

000


35

121100111

30

94511301

25

18203310

20

20001000

15

0000000


1121301

£5

103312000

50

132100000

75

1500

00

100

10

00000

10 DB

00000000

J25 MM/HR

4000000

A46

UNXV OF TEXAS GTS ISOLATION VS ATTENUATION 6 78


DB OB DB DB

0 1 3 5 3 0 2 41 2 3 5 2 7 2 32 3 3 4 2 6 2 53 4 3 4 3 0 2 54 5 3 3 2 9 2 35 6 2 9 2 7 2 46 7 2 8 2 6 2 47 8 2 6 2 4 2 18 9 2 4 2 2 2 19 10 24 21 20

10 11 21 21 1911 12 22 22 2012 13 21 21 2013 14 20 20 1914 15 19 19 1815 16 18 18 1816 17 18 18 1817 18 18 18 1718 19 18 18 1719 20 17 17 1620 21 18 18 1621 22 17 17 1522 23 17 17 1623 24 ** ** **24 25 ** ** **25 26 ** ** **26 27 ** ** **27 28 ** ** **28 29 ** ** **29 30 ** ** **

A47

10.0000

1.0000 -4-

WWuXw

WHH<W

H2Wu

0. 1000 --

0.0100

o.ooio -4-

o.oooi


I I I I

10 15 20

July 78

Z5 30 35

ATTENUATION IN DB

A48


10. 0000

coCO»—(utoffl

§OCO

1.0000

0.1000 --

H 0.0100 _L

OH

U

CU

0.0010 -I-

0.0001

1 I I I i i i

10 15 20 25

1 1 J 1

July 78

30 35 40

ISOLATION IN DB


A49

10.0000.

1.0000.

Q

§«WuXw

0. 1000- .

0.0100-.

HZyu«w(X

0.0010- .

0.0001

I I I [ t i l l II I I I I I I I I t I ll I I I I I I

July 78

I I I I I I I ' ' • I • ' ' I ' ' ' I20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A50



1 141 35 251 5 532 47 34 188 10 213 33 33 146 15 154 29 32 112 20 145 22 31 88 25 96 17 30 76 30 77 15 29 57 35 48 11 28 52 40 39 6 27 42 45 2

10 3 26 32 50 111 3 25 24 55 112 2 24 14 60 013 2 23 11 65 014 2 22 9 70 015 2 21 5 75 016 2 20 3 80 017 1 19 2 85 018 1 18 2 90 019 0 17 1 95 020 0 16 1 100 021 0 15 0 105 022 0 14 0 110 023 0 13 0 115 024 0 12 0 120 025 0 11 0 125 026 0 10 0 130 02 7 0 9 0 1 3 5 028 0 8 0 140 029 0 7 0 145 030 0- 6 0 150 &

A51

UNIV OF TEXAS GTS TIME OF DAY DATA FOR 7 78

TIME OF DAY MINUTES THE ATTENUATION EXCEEDED<GMT) 3 6 10 20 25 30 DB

01 0 .0 0 0 0 0

2 33 44 55 66 77 88 99 10

10 1111 1212 1313 1414 IS15 1616 1717 1818 1919 2020 2121 2222 2323 24

0000

27000000000000006000

0000

14000000000000003000

00003000000000000000000

00000

. 000000000000000000

00000000000000000000000

00000000000000000000000

A52


TIME OF DAY<OMT>

MINUTES THE ISOLATION WAS LESS THAN35 30 25 20 15 10 DB

012

34567891011121314151617181920212223

123

456789101112131415161718192021222324

002

3639565853

2000000000006000

001

01

3534

20000000000004000

000

00

16500000000000001000

000

003000000000000000000

000

000000000000000000000

000

000000000000000000000

A53

UN17 OF TEXAS CTS TIME OF DAY DATA FOR 7 78

TIME OF DAY MINUTES THE RAINRATE EXCEEDED(GMT) S 25 50 75 100 125 MM/HR

0 11 22 33 44 55 66 77 88 99 10

10 1111 1212 1313 1414 1515 1616 1717 1818 1919 2020 2121 2222 2323 24

0000

1321

800000000030008000

000004000000000000005000

000001000000000000000000

000000000000000000000000

000000000000000000000000

000000000000000000000000

A54


DURATIONINTERVAL

MIN

0 11 22 44 88 1616 3232 64

DURATIONINTERVAL

MIN

01248163264

1248163264**

DURATIONINTERVAL

MIN

01248

124816

16 3232 6464 **


3 6 10 20 25 30 DB

0101010

010100

01000

0000

0000000

00

000

64 ** 0 0 0 0 0 0


35 30 25 20 15 10 DB

103333301

73101010

3410100

0100000

000000

00000000


5 25 50 75 100 125 MM/HR

1032300

01110000

20000000

0

0000

000000

000000

A55


ATTENUATION 10X 50* 90SINTERVAL OF DATA HAVE ISOLATION GREATER THAN

OB DB DB DB

0 1 3 7 3 4 2 91 2 3 5 3 3 3 12 3 3 1 2 9 2 63 4 3 4 2 8 2 64 5 2 6 2 6 2 45 6 2 5 2 4 2 46 7 2 7 2 7 2 37 8 2 6 2 6 2 28 9 2 3 2 3 2 19 10 21 21 20

10 11 19 19 1911 12 19 19 1912 13 18 18 1813 14 17 17 1714 15 ** ** **15 16 ** ** **16 17 18 18 1617 18 15 15 1518 19 17 17 1519 20 16 16 1620 21 .** ** **21 22 ** ** **22 23 ** ** **23 24 ** ** **24 25 *» ** **25 26 ** ** **26 27 ** ** **27 28 ** ** **28 29 ** *» **29 30 ** ** **

A56


10.0000

1.0000 -4-

HWuXwS32

o. 1000

WHH

W2

oH2WO«wd.

0.0100

0.0010 -•

0.0001

I I I I I I I I I I I I I I I i I I 1 I I I I I I t 1 I I I I I

Aug 78

I I I I I I I I > I I I I I I I I ' • " i10 15 20 25 30 35

ATTENUATION IN DB

A57


10.0000

1.0000 _.

w55uw«<V

^ o. 1000 -4-§

H 0.0100 _L

oH

u

0.0010 --

0.0001

1 I I I

10

+J-̂ -MI I I I I I I I I I I 1 I I I 4-^-MAug 78

• h i ' • ! . 1 ••' | i " 'I ' ".'I •! " I15 20 25 30 35 40

ISOLATION IN DB


A58

10. 0000-

uXw

1.0000--

0.1000-J-

H 0.0100-.

HZyu«w

0.0010- •

0.0001

I I I U—4Aug 78

i i i i « I ' ' r"I ' ' ' I

20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A59


ATTENUATION EXCEEDED ISOLATION LESS THAN RAXNRATE EXCEEDEDDB FOft MINUTES DB FOR MINUTES MM/HR FOR MINUTES

1 164 35 266 5 1312 61 34 231 10 713 30 33 184 15 504 22 32 147 20 405 16 31 116 25 316 13 30 95 30 237 12 29 80 35 178 10 26 71 40 149 8 27 62 45 10

10 6 26 54 50 811 4 25 44 55 612 3 24 22 60 413 2 23 5 65 414 1 22 1 70 315 1 21 0 75 316 1 20 0 80 217 0 19 0 85 118 0 18 0 90 119 0 17 0 95 120 0 16 0 100 121 0 15 0 105 022 0 14 0 110 023 0 13 0 115 024 0 12 0 120 025 0 11 0 125 026 0 10 0 130 02 7 0 9 0 1 3 5 02 8 0 8 0 1 4 0 02 9 0 7 0 1 4 5 03 0 0 6 0 1 5 0 0

A60


TIME OF DAY<GMT>


0123456789

1011121314151617181920212223

12345678910

1112131415161718192021222324

0003005600

000000000

170000

0000000000

000000000

130000

0000000000

00000000060000

0000000000

00000000000000

0000000000

00000000000000

0000000000

00000000000000

A61


TIME OF DAY MINUTES THE ISOLATION WAS LESS THAN(GMT) 35 30 25 20 IS 10 DB

0 11 22 33 44 55 66 77 88 99 1010 1111 12

12 1313 1414 IS15 1616 1717 1818 1919 2020 2121 2222 2323 24

000500

11500201020

57173000003511000

0001000100100

54260000200000

000000000000

27000000170000

000000000000

000000000000

000000000000

000000000000

000000000000

000000000000

A62


TIME OF DAY MINUTES THE RA1NRATE EXCEEDED(GMT) 5 25 50 75 100 125 MM/KB

8 I1 22 33 44 55 66 77 88 99 1010 1111 1212 1313 14

14 1515 16

- 16 1717 1818 1919 2020 2121 2222 2323 24

000

1030

35130000

390

30007

200000

000200

132000000

00000

140000

00000011000000

0000070000

00000000000000

0000020000

00000000000000

0000010000

00000000000000

0000000000

A63


DURATIONINTERVAL

WIN

01248

124816

16 3232 6464 **

DURATIONINTERVAL

HIM

01248

1248

1616 3232 6464 **

DURATIONINTERVAL

MIN

0124

1248

8 1616 3232 6464 **


3 6 10 20 25 30 DB

3221100

20001000

1110

00

10000000

0000000

0000000

EVENTS WHEN ISOLATION HAS LESS THAN

35 30 25 20 15 10 DB

103372211

94131010

51222000

10000000

00000000

0000000


5 25 50 75 100 125 MM/HR

10642210

I I1301000

181

00

000000

0000

10000000

A64


ATTENUATION 10X 50X 90SINTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB DB DB OB

01 37 33 3012 36 28 2323 36 28 2334 38 35 2745 36 36 255 6 39 39 2467 24 24 21

7 8 35 35 2189 30 30 209 10 26 26 2210 11 24 24 2311 12 25 25 2312 13 23 23 2213 14 24 24 2214 15 22 22 2215 16 23 23 2316 17 23 23 2317 18 ** ** **18 19 24 24 2419 20 ** ** **20 21 24 24 2421 22 ** ** **22 23 ** ** **23 24 ** ** **24 25 ** ** **25 26 ** ** **26 27 ** ** **27 28 ** ** **28 29 ** ** **29 30 ** ** **

A65


10.0000

1.0000 -4-

WwuXw5222 o.ioooH

zwHH

Wg -H 0.0100 -4-

OH

O

0. 0010 - -

0.0001

I t I i i j t i i t j i i i i | i i i t jI i t I i i i i I I I i i I t i i t I I t I

Sept 78

TT i i I i i i • I i i i i j i • ' > I ' ' • • J • i • • J

10 15 20 25 30 35

ATTENUATION IN DB

A66


10.0000

towt— Io

§

0,

1.0000 _ _

0. 1000 . .

H o.oioo J_oH2U

0.0010 -•

0.0001

i l i i I i i i i | I I l i I i i i i I i i i i I1 1 1 I I I

10 15

I I I

Sept 78

i i i . 1 i i . . 1 i n i 11 i . . 1 i " .• I 11 i i 120 30 35 40

ISOLATION IN DB


AUSTIN, TEXAS

10.0000-

1.0000.

wuXw~ 0. lOOOrl-«H<tf

W

oHZyo«w

o.oioo -

0.0010- •

0.0001

I I i l l l t l l l l j l l l l 1 1 1 ! 1 1 l l l l l

Sept 78

•j I I I I I I I J I I I I I • • I l" I • I 1I 'I-0 20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A68

UNZV OF TEXAS GTS EXCEEDENCE DATA FOR 9 78


1 333 35 271 5 1902 106 34 226 10 803 51 33 164 15 554 36 32 114 20 385 21 31 77 25 256 12 30 53 30 217 8 29 37 35 178 5 28 19 40 139 2 27 10 45 8

10 1 26 7 50 511 0 25 3 55 312 0 24 0 60 213 0 23 0 65 214 0 22 0 70 115 0 21 0 75 116 0 20 0 80 117 0 19 0 85 118 0 18 0 90 1

19 0 17 0 95 120 0 16 0 100 021 0 15 0 105 022 0 14 0 110 023 0 13 0 115 024 0 12 0 120 025 0 11 0 125 026 0 10 0 130 02 7 0 9 0 1 3 5 02 6 0 8 0 1 4 0 02 9 0 7 0 1 4 5 030 0 6 0 150 0

A69

tINIV OF TEXAS CTS TIME OF DAY DATA FOR 9 78

TIME OF DAY MINUTES THE ATTENUATION EXCEEDEDCGMT) 3 6 10 "20 25 30 Dfi

0 1 0 0 0 0 0 01 22 33 44 55 66 77 88 99 10

10 11

11 1212 1313 1414 1515 1616 1717 1818 1919 2020 2121 2222 2323 24

0310000000

190600

114

140200

0000000000

0103004140000

0000000000

0001000000000

0000000000

0000000000000

0000000000

0000000000000

0000000000

0000000000000

A70

UNXV OF TEXAS CTS TIME 07 DAY DATA FOR 9 78

TIME OF DAY(GMT)

MINUTES THE35 30

ISOLATION WAS LESS THAN25 20 15 10 DB

0123456789101112

12345678910111213

141516

13141516 1717 1818 1919 2020 2121 2222 2323 24

00201022800100106

857140122352511623

0000100000001

0206061

100052

0000000000000

01001000010

0000000000000

00000000000

0000000000000

00000000000

0000000000000

00000000000

A71

UNIV OF TEXAS CTS TIME OF DAY DATA FOR

TIME OF DAYCGMT)

MINUTES THE RAINRATE EXCEEDED5 25 50 75 100

9 78

125 MM/HR

0123456789

1011121314151617181920212223

123456789101112131415161718192021222324

0000

16100310

3029

3480

123

5614800

000000000007

1200000040100

000000000001200000010000

000000000000100000000000

000000000000000000000000

000000000000000000000000

A72


DURATIONINTERVAL

WIN

DURATIONINTERVAL

MIN


10 20 25 30 DB

0 11 22 44 88 1616 3232 6464 **

DURATIONINTERVAL

MIN

71221100

EVENTS

35

20400000

WHEN

30

10000000

ISOLATION

00000000

WAS

25 20

00000000

LESS

15

00000000

THAN

10 DB

0124

8163264

1248

163264

**

5476

14

5010

20453

1000

5100

0000

0000

0000

0000

0000

0000

0000

EVENTS WHEN RA1NRATE EXCEEDED

5 25 50 75 100 125 MM/UR

01248

163264

1248

163264**

02844400

23410000

91000000

20000000

20000000

10000000

A73

UNZV OF TEXAS CTS ISOLATION VS ATTENUATION 9 78


DB DB DB DB

0 1 3 8 3 4 2 91 2 3 8 3 6 3 12 3 3 9 3 9 3 23 4 3 7 3 5 3 14 5 3 6 3 2 3 05 6 3 3 3 1 2 86 7 3 1 2 9 2 77 8 2 9 2 9 2 5

8 9 2 8 2 8 2 49 10 26 26 24

10 11 24 24 2411 12 ** ** **12 13 ** ** **13 14 ** ** **14 15 ** ** **15 16 ** ** **16 17 ** ** **17 18 ** ** **18 19 ** ** **19 20 ** ** **20 21 ** ** **21 22 ** ** **22 23 ** ** **23 24 4>4> ** *4c24 25 ** 4=* **25 26 4>* ** **26 27 ** ** **27 28 ** ** **28 29 414= 4>* **29 30 ** ** 4>4:

A74

10.0000

1.0000 -4-PwQWWUXw

2 o.1000 - •

2wHH

0.0100

OH2au

0.0010 -•

0.0001


i i i i i i i t i i i i i i i i i i

Oct 78

i i i • I i i i > I i i i i | i i i -I" i10 15 20 25 30 35

ATTENUATION IN DB


A75

10, 0000

1.0000

Own<v~ 0. 1000

§Ow

H 0.0100 _-

H2yu

0.0010 --

o.oboi

I 1 t I 1 I I I I . I I I I I I I I I I II I I I I I I I 1 1 I i I I I I I I 1 1 I I

I I I

Oct 78

I I I10 15 20 25 30

I I I I

I . ' • • I . . . . i35 40

ISOLATION IN DB

10. 0000-

QUQ

ux

H

§U«W

1. 0000- .

o. 1000̂ .

0.0100 - .

0.0010-.

0.0001


A76

i i 4—4Oct 78

I 1 1 • I20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A77

UNIV OF TEXAS GTS EXCEEDENCE DATA FOR 10 78


1 26 35 22 5 62 6 34 5 10 53 0 33 2 15 44 0 32 1 20 35 0 31 0 25 26 0 30 0 30 27 0 29 0 35 18 0 28 0 40 09 0 27 0 45 010 0 26 0 50 011 0 25 0 55 012 0 24 0 60 013 0 23 0 65 014 0 22 0 70 015 0 21 0 75 016 0 20 0 80 0

17 0 19 0 85 018 0 18 0 90 019 0 17 0 95 020 0 16 0 100 021 0 15 0 105 022 0 14 0 110 023 0 13 0 115 024 0 12 0 120 025 0 11 0 125 ' 026 0 10 0 130 027 0 9 0 135 028 0 8 0 140 02 9 0 7 0 1 4 5 03 0 0 6 0 1 5 0 0

A78


TIME OF DAY(GMT)


01234567891011121314151617181920212223

123456789101112131415161718192021222324

000000000000000000000000

000000000000000000000000

000000000000000000000000

000000000000000000000000

000000000000000000000000

000000000000000000000000

A79


125 MM/HRTIME OF DAY

(GMT)MINUTES THE RAINRATE EXCEEDED

5 25 50 75 100

012345678910111213U151617181920212223

12345678910U121314IS161.718192021222324

000230000000000000000000

000020000000000000000000

000000000000000000000000

000000000000000000000000

000000000000000000000000

000000000000000000000000

A80


DAY MINUTES THE ISOLATION WAS LESS THAN35 30 25 20 IS 10 DB

TIME OF(GMT)

01234567891011

121314151617181920212223

123456789101112

131415161718192021222324

0002

165000000

000000000000

000000000000

000000000000

000000000000

000000000000

000000000000

000000000000

000000000000

000000000000

000000000000

000000000000

A81


DURATIONINTERVAL

HIN


10 20 25 30 DB

0 11 22 44 88 1616 3232 6464 **

DURATIONINTERVAL

MIN

10000000

EVENTS

35

00000000

WHEN

30

000 .00000

00000000

ISOLATION WAS

25 20

00000000

LESS

15

00000000

THAN

10 DB

0 11 22 4

4 88 1616 3232 6464 **

DURATIONINTERVAL

MIN

030

21000

EVENTS

5

000

00000

WHEN

25

000

00000

RAINRATE

50

000

00000

000

00000

000

00000

EXCEEDED

75 100 125

01248

163264

1248

163264**

00010000

00100000

00000000

00000000

00000000

00000000

A82


ATTENUATION 10Z 50X 90SINTERVAL . OF DATA HAVE ISOLATION GREATER THAN

DB DB DB DB

01 36 35 3412 38 34 3323 37 35 3234 34 34 344 5 ** ** **5 6 ** ** **67 ** ** **78 *» ** **89 ** ** **9 10 ** ** **

1 0 1 1 ** ** **11 12 ** ** **12 13 ** ** **13 14 ** ** **14 15 ** ** **15 16 ** ** **16 17 ** ** **17 18 ** ** **18 19 ** ** **19 20 ** ** **20 21 ** ** **21 22 ** ** **22 23 ** ** **23 24 ** ** **24 25 ** ** **25 26 ** ** **26 27 ** ** **27 28 ** ** **28 29 ** ** **29 30 ** ** **

A83


10.0000

1.0000 -4-

WWuXwCOi— i22 0. 1000H

iHH

W

oH2Uu

0.0100

0.0010 -.

0.0001

I I I I I I i I I I I I I II I I I I I I I > 1 1 1 I I I I I I I I I

Nov 78

I I « • I I I « • I I I I I I I • ' • I10 15 20 25 30 35

ATTENUATION IN DB

A84

10.0000

i.oooo _.

COwI—IosV

aOi—<H

o. looo -*

H 0.0100 _|_

oH

u

0.0010 --

0.0001


I i i I i i i i I l I i i I i i i i I i t i l l i i i i I I l I i

Nov 78

i i i i | i i • • I i i i i I i10 15 20 25

ISOLATION IN DB

t̂ r-"-130 35 40

10.0000-

1.0000.

QWWOXw

tf

0. 1000-1-

H 0.0100-.

H

§UPJwex

0.0010--

0.0001

i i


A85

l l l l j l i I I t I I I I I I I I I I I I I I I

Nov 78

I i » I i ' i20 40

I ' ' ' | ' ' • 160 80 100 120 140

RAIN RATE IN MM/HR

A86


,-, ATTENUATION EXCEEDED ISOLATION LESS THAN BAINRATE EXCEEDEDDB FOR MINUTES DB FOR MINUTES MM/HR FOR MINUTES

1 441 35 534 5 2712 127 34 419 10 1183 48 33 319 15 634 28 32 256 20 465 14 31 205 25 266 4 30 160 30 137 1 29 119 35 78 1 28 91 40 49 0 27 66 45 3

10 0 26 41 50 211 0 25 25 55 112 0 24 10 60 013 0 23 2 65 014 0 22 1 70 015 0 21 0 75 016 0 20 0 80 017 0 19 0 85 018 0 18 0 90 019 0 17 0 95 020 0 16 0 100 021 0 15 0 105 022 0 14 0 110 023 0 13 0 115 024 0 12 0 120 025 0 11 0 125 026 0 10 0 130 02 7 0 9 0 1 3 5 02 8 0 8 0 1 4 0 02 9 0 7 0 1 4 5 030 0 6 0 150 0

A87

UNIV OF TEXAS CTS TIME OF DAY DATA FOR II 78

TIME OF DAY MINUTES THE ATTENUATION EXCEEDEDCGMT) 3 6 10 20 25 30 DB

0 11 22 33 44 55 66 77 88 99 10

10 1111 1212 1313 1414 1515 1616 1717 1818 1919 2020 2121 2222 2323 24 21 2 0 0 0 0

700000010000

00510000

1210

000000000000

00200000000

00000000000000000000000

00000000000000000000000

00000000000000000000000

00000000000.000000000000

A88


TIME OF DAY<GMT>

MINUTES THE ISOLATION WAS LESS THAN35 30 25 20 IS 10 PB

01234567891011121314151617181920212223

1234567891011121314is161718192021222324

5156465651398425298023108000024441139

323325010

21000000400000828025

850000000000000000000705

000000000000000000000000

000000000000000000000000

000000000000000000000000

A89


TIME OF DAY MINUTES THE RAINRATE EXCEEDED(GMT) 5 25 50 75 100 125 MM/HB

0 11 22 33 44 55 66 77 88 99 10

10 1111 1212 1313 1414 1515 1616 17

17 1818 1919 2020 2121 2222 2323 24

5116£829

30000

144425820

000

3922

342

00000000020000100

000

1100

11

00000000000000000

0001001

00000000000000000

0000000

00000000000000000

0000000

00000000000000000

0000000

A90


DURATIONINTERVAL

WIN

01248

t24816

16 3232 6464 **

DURATIONINTERVAL

HIN

01248

1248

1616 3232 6464 **

DURATIONINTERVAL

MIN

01248

124816

16 3232 6464 **


3 6 10 20 25 30 DB

4112110

5100000

00000

0

00000000

00000000

00000000

EVENTS WHEN ISOLATION VAS LESS THAN

35 30 25 20 15 10 DB

33 28 27 0 0 019 12 6 0 0 019 8 2 0 01 1 7 0 0 010 4 0 0 0

6 1 0 0 02 0 0 0 00 0 0 0 0

000000


5 25 50 75 100 125 MM/HR

0 7 6 2 0 04 1 0 0 0 013 5 0 0 0 05 1 0 0 0 06 0 0 0 0 03 0 0 0 0 01 0 0 0 0 00 0 0 0 0 0

A91


ATTENUATION 10X 50X 90%INTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB DB DB DB

0 1 3 9 3 9 3 21 2 3 6 3 3 2 72 3 3 4 3 1 2 53 4 3 1 2 8 2 44 5 3 1 2 7 2 45 6 2 8 2 6 2 56 7 2 7 2 7 2 37 8 2 5 2 5 2 48 9 2 4 2 4 2 29 10 ** ** **

10 11 ** ** ** "11 12 ** ** **12 13 ** ** **13 14 ** ** **14 15 ** ** **15 16 ** ** **16 17 ** ** **17 18 ** ** **18 19 ** ** **19 20 ** ** **20 21 ** ** »*21 22 ** ** **22 23 ** ** **23 24 ** ** **24 25 ** ** **25 26 ** ** **26 27 ** ** **27 28 ** ** **28 29 ** ** **29 30 ** ** **

A92

10.0000

1.0000 -4-

uXwCO

o o. 1000

§H

H 0.0100

o

§U

0.0010 --

0.0001

11.7 GHZ ATTENUATION DISTRIBUTIONAUSTIN. TEXAS

t i i i l t i i i I I I i i | i t i , I i i i i j i i

10 15 20

Dec 78

I i - 1 1 . 11 . . »I. " • I • i .. I25 30 35

ATTENUATION IN DB

A93


10.0000

w

PQ<V

~

§

O

oK.tq

1.0000

o. 1000 -4-

H 0.0100 _|_

oH

0.0010 -•

0.0001

I"' 'Ii t i i 1 i i t i I I I i i I i t i t I i lit

i i » • I i i i • I i i i •

I I I

Dec 78

10 15 20 25 30 35 40

ISOLATION IN DB

10.0000-

Q

§uXw

1.0000.

o. 1000-4-

rt

H 0.0100-.

H

§u«w04

0;0010- •

0.0001


A94

i i I I I I I t I l [ l l l j l l l l i l t l l l l [

Dec 78

i i i i i ' ' ' I T " 1 ' I

20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A95



1 311 35 325 5 1682 100 34 284 10 993 60 33 236 15 744 45 32 197 20 545 29 31 163 25 396 14 30 125 30 277 5 29 93 35 168 1 28 66 40 109 0 27 44 45 710 0 26 29 50 611 0 25 11 55 412 0 24 7 60 313 0 23 3 65 314 0 22 1 70 215 0 21 0 75 116 0 20 0 80 117 0 19 0 85 118 0 18 0 90 019 0 17 0 95 020 0 16 0 100 021 0 15 0 105 022 0 14 0 110 023 0 13 0 115 024 0 12 0 120 025 0 11 0 125 026 0 10 0 130 027 0 9 0 135 028 0 8 0 140 029 0 7 0 145 030 0 6 0 150 0

A96

UNXV OF TEXAS GTS TIME OF DAY DATA FOR 12 78

TIME OF DAY(GMT)


0i6345678910

11121314IS1617181920212223

1234567891011

12131415161718192021222324

00000001

1644

0

0000000000000

000000003

110

0000000000000

00000000000

0000000000000

00000000000

0000000000000

00000000000

0000000000000

00000000000

0000000000000

A 97


DAY MINUTES THE ISOLATION WAS LESS THAN35 30 25 20 15 10

TIME OF(GMT)

01234567891011121314151617181920212223

123456789101112131415161718192021222324

OB

0000085165357565055801203100002

000000161441331991010 •0000000

000000003530000000000000

000000000000000000000000

000000000000000000000000

0000

•'00000

00000

A98


TIME OF DAY(GMT)

012,3456789101112131415

123

. 45678910111213141516

16 1717 1818 1919 2020 2121 2222 2323 24

MINUTES THE RAINRATE EXCEEDED5 25 50 75 100 125 MM/HB

00000477

26602730

0001

00000005

000001008

29000000

0*0000001

0000000016000000

00000000

0000000001000000

00000000

0000000000000000

00000000

00000000000000

00000

A99


DURATIONINTERVAL

MIN

DURATIONINTERVAL

MIN

DURATIONINTERVAL

MIN


10 20 25 30 OB

01248

163264

1248

163264

**

40101010

43200000

00000000

00000000

00000000

00000000


35 30 25 20 15

01248

163264

1248

163264**

459662430

5510841200

154000000

00000000

00000000

10 DB

0

00

EVENTS WHEN RAIHRATE EXCEEDED

25 50 75 100 125 KM/HE

0t248

163264

1246

163264

**

03641201

94041000

132000000

70000000

00000000

00000000

A100



DB DB DB OB

0 11 22 33 44 55 66 77 88 9

9 1010 1111 1212 1313 1414 1515 1616 1717 1818 1919 2020 2121 2222 2323 2424 2525 2626 2727 2828 2929 30

393634312928282724

22****************************************

393231282626262524

22**'*************************«************

312828252524232222

22****************************************

A101


10.0000

1.0000 -4-Q

§WwuXw

2 o.ioooH

HH

W

H 0.0100 - -

oH

Ott

0.0010 -•

0.0001

i i i i I i i i i I i i i i I i i i . I t i l l

Jan 79

i i > i | i i i ' | i i i i I i •

10 15 20 30 35

ATTENUATION IN DB

A102


10.0000

1.0000

w53uwPQ< 'v

•3 o. 1000 -I-gJO

H 0.0100 J_

oH

u«yDH

0.0010 --

0.0001

| I t i i I i i t t I i i t i j i i i i Ii i i i I t i i i i I t i i I i i t t 1 i i t i 1 i i t i I t

Jan 79

i i • • I i i • • J i i i i J i • • • I • • • • J • i • • I10 15 20 25 30 35 40

ISOLATION IN DB

10. 0000-

QWQ«WUXw

sH-1

HEnO

05WCU

1.0000.

o. 1000-4-

0.0100 -.

0.0010--

0.0001

I I


A103

I 1 J-—J

• i i i i I ' " I

Jan 79

' ' 'I ' '' I20 40 60 80 100 120 140

RAIN RATE IN MM/HR

A104

UNZV OF TEXAS CTS EXCEEDENCE DATA FOR 1 79


1 152 35 333 5 862 44 34 294 10 253 9 33 253 15 74 8 32 207 20 25 7 31 127 25 16 6 30 66 30 17 3 29 38 35 08 2 28 24 40 09 0 27 15 45 010 0 26 9 50 011 0 25 3 55 012 0 24 1 60 013 0 23 0 65 014 0 22 0 70 015 0 21 0 75 016 0 20 0 80 017 0 19 0 85 018 0 18 0 90 0

19 0 17 0 95 020 0 16 0 100 021 0 15 0 105 022 0 14 0 110 023 0 13 0 115 024 0 12 0 120 025 0 11 0 125 026 0 10 0 130 027 0 9 0 135 02 6 0 8 0 1 4 0 02 9 0 7 0 1 4 5 03 0 0 6 0 1 5 0 0

A105


TIME OF DAY MINUTES THE ATTENUATION EXCEEDED(GMT) 3 6 10 20 25 30 DB

0 11 22 33 44 55 66 77 88 99 10

10 11

11 1212 1313 U14 1515 1616 1717 1818 1919 2020 2121 2222 2323 24

00009000000

0000000000000

00006000000

0000000000000

00000000000

0000000000000

00000000000

0000000000000

00000000000

0000000000000

00000000000

0000000000000

A106


TIME OF DAY<GMT>

MINUTES THE ISOLATION HAS LESS THAN35 30 £5 £0 15 10 DB

1£3456789

1011

123456789101112

12 1313 1414 1515 1616 1717 1818 1919 £0£0 £121 2222 2323 24

251112047606060000025200003014860

23£017271320000000000001000

0000200000

•0000000000000

000000000 .000000000000000

000000000000000000000000

000000000000000000000000

A107


TIME OF DAY(GMT)

MINUTES THE RAINRATE EXCEEDED5 25 50 75 100 125 MW/HR

0123456789101112131415

1617181920212223

12345678910111213141516

1718192021222324

5590

1920

0000000000

0100

19630

0000100000000000

00000000

0000000000000000

00000000

0000000000000000

00000000

0000000000000000

00000000

0000000000000000

00000000

A108

UNIV OF TEXAS GTS DURATION DATA FOR 1 79

DURATIONINTERVAL

HIM

01248163264

1248163264**

DURATIONINTERVAL

MIN

0124

1248

8 1616 3232 6464 **

DURATIONINTERVAL

MIN

1248

163264

1248

163264

**


0001000

10010000

10

00000000

20

00000

25

00000

30 DB

00000000


35

27555

1211

30

11645

1000

25

8000

0000

20

0000

00

15

00

0000

10 DB

0000

000


5 25 50 75 100 125 MM/HR

04834000

000000

10000000

00000000

00

0

0000000

A109

UNIV OF TEXAS GTS ISOLATION*VS ATTENUATION 1 79

ATTENUATION 10% 50X 90SINTERVAL OF DATA HAVE ISOLATION GREATER THAN

DB DB DB DB

01 39 39 3012 33 31 2823 32 30 2534 34 34 2945 32 32 275 6 29 29 2767 27 27 2278 30 30 24

8 9 28 28 239 10 27 27 2710 11 ** ** **11 12 ** ** **12 13 ** ** **13 14 ** ** **14 15 ** ** **15 16 ** ** **16 17 ** ** **17 18 ** ** **18 19 <* ** **19 20 ** ** **20 81 ** ** **21 82 ** ** **22 23 ** ** **23 24 ** ** **24 25 ** ** **25 26 ** ** **26 87 ** ** **27 88 ** ** **28 29 ** ** **29 30 ** ** **

Documents

CTS ATTENUATION AND CROSS POLARIZATION MEASUREMENTS … · 2013-08-31 · CTS ATTENUATION AND CROSS POLARIZATION MEASUREMENTS AT 11.7 GHz W. J. Vogel Electrical Engineering Research