Embed Size (px)
Citation preview
TGR-65PORTABLE MEDIUM WAVE ANTENNA SYSTEM
BYRON JOHNSON
03 April 2015
From left to right:Lawrence Behr, CEOByron Johnson, Product Developer/ManagerChris K. Horne, PhD, PE, Chief Technical Officer
TGR-65 ANTENNA & ATU
Commercial Off The ShelfLBA Proprietary, Patents Apply
• Light vehicle transportable
• Frequency agile, field tunable
• Set up & tuning in 1 hour or less by 4 man crew
• Frequency Range: 500 kHz to 1710 kHz – Capable of VLF & HF frequencies with ATU modification.
• Radiation Pattern: Omnidirectional, vertically polarized
• Use with any typical MW Transmitter - Input Power: 500w, 2000w PEP
• Input Impedance: 50 ohms (Maximum VSWR 3.0/1)
• Field Strength*: 25 mV/m/km/kw at 550 kHz
150 mV/m/km/kw at 1200 kHz
280 mV/m/km/kw at 1700 kHz
• Wind Survival: 70 mph (112 kph) gusts, 20 mph (32 kph) during installation
• Installation Area: The antenna installation requires a relatively flat area 100 ft (30.5m) in diameter
OVERVIEW
TGR 65 DEPLOYMENT PACKAGING
TGR 65
SETUP
ASSEMBLE HORIZONTALLY
TILT UP PARTIALLY TO ATTACH TOP MAST
TILT UP PARTIALLY TO ATTACH TOP MAST & FOLD WIRES
ATTACH FOLD WIRES TO TOP MAST
TILT UP
CRANK UP
SECURE FOLD WIRES, ANCHORS & GUY LINES
TGR 65
TUNING
ATTACH ATU & TUNE
ATU
TUNE USING GRAPHS & CHARTS IN THE MANUAL
1. Set the J-Plugs for the frequency range
2. Set the Capacitor Counter according to the chart
3. Set the Inductor Counter according to the chart
530 570 610 650 690 730 770 810 850 890 930 970 1010 1050 1090 1130 1170 1210 1250 1290 13307.00
8.00
9.00
10.00
11.00
12.00
13.00
14.00
15.00
16.00
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
20.00
22.00
24.00
26.00
28.00
Mid Range Tuning Data
CL
Frequency (kHz)
"C"
Coun
ter
TUNE USING GRAPHS & CHARTS IN THE MANUAL
Mid Range Tuning Data J - Plug Configuration
kHz C L J-1 J-2 J-3 J-4530 11.40 1.20 B-C A-B A-B B-C550 11.50 2.80570 11.60 4.30590 11.60 5.70610 11.70 7.00630 11.80 8.10650 11.80 9.20670 11.90 10.20690 11.90 11.20710 12.00 12.10730 12.00 12.90750 12.00 13.70770 12.10 14.40790 12.10 15.10810 12.10 15.80830 12.20 16.40850 12.20 17.00870 12.20 17.60890 12.20 18.10910 12.30 18.60
TUNE USING GRAPHS & CHARTS IN THE MANUAL
Final tuning may be accomplished by using a transmitter capable of low power with a VSWR mismatch and an impedance bridge. A signal generator may be used with an impedance bridge before connecting the transmitter.
Depicted in previous slide is the Delta Electronics RG4 Signal Generator and the OIB-3 Impedance Bridge.
If using a transmitter, the OIB-3 bridge may be left in line with between the ATU and the transmitter for tuning and operational monitoring.
METHODS OF TUNING
ATU
