Upload
trinhnhu
View
221
Download
0
Embed Size (px)
Citation preview
Ho
me
bre
w D
-ST
AR
Jim
Moen –
K6JM
12 October 2013
Pacificon
Santa Clara, CA
Artwork by
"Gil"Gildersleeve
W1CJD
Buy “Gil -A Collection
of Classic Cartoons
from QST” at the ARRL
store
Wh
at
I’ll t
alk
ab
ou
t
•Digital Voice and D-STAR
•DV and CODECs
•Linking repeaters and reflectors
•Hotspots
•What are they and what can they do?
•Homebrew: Set up your own Hotspot
•What’s new in D-Star?
•Tiny computers like Raspberry Pi, BeagleBone Black
•Various D-Star boards to work with these tiny PCs
•New Software and hardware approaches
Pacificon –
12 Oct 2013 –
K6JM
Wh
at
is D
-ST
AR
?
�Digital Smart Technology for Amateur Radio
�Protocol standard for Digital Voice & Data
�Open standard facilitated by JARL
�ICOMhas built D-STAR radios
�Most radios use 144MHz/440MHz/1.2 GHz
�ICOM 7100 & 9100 add D-Star to HF bands
�Uses GMSK(Gaussian Minimum Shift Keying)
with FEC (Forward Error Correction)
Pacificon –
12 Oct 2013 –
K6JM
Dig
ita
l V
oic
e R
ad
ios
Usin
g D
-ST
AR
as a
n e
xam
ple
Analo
g
to
Dig
ital
Com
pre
ss
CO
DE
C*
(AM
BE
chip
)
Genera
te t
ones
(GM
SK
modem
)
FM
M
odula
tor
FM
D
iscri
min
ato
r
Speaker
Convert
tones t
o
dig
ital data
Decom
pre
ss
*(A
MB
E c
hip
)
Dig
ital
to
Analo
g
An
alo
g
FM
R
ad
io
*CODEC: Compression/DECompression algorithm
•D-STAR uses the most popular proprietary CODEC: AMBE
•High quality, low bit-rate algorithm -Adds $25 to cost of radio
•Used for serious DV: commercial, military, P25-II
•CODEC2 is Open Source, used by FreeDV –freedv.org
•CODEC2 is becoming popular for HF DV
•Hopefully will become popular for VHF/UHF Pacificon –
12 Oct 2013 –
K6JM
Wh
at’s g
oo
d a
bo
ut
D-S
tar?
•C
lea
n a
ud
io, n
o s
tatic
•C
alls
ign
s &
me
ssa
ge
s o
n r
ad
io s
cre
en
•D
-ST
AR
ne
two
rk lin
ks r
ep
ea
ters
an
d
refle
cto
rs a
rou
nd
th
e w
orl
d
•L
et
the
sys
tem
fin
d a
no
the
r h
am
(ca
llsig
n)
•C
an
se
nd
sm
all
da
ta f
iles (
sp
rea
dsh
ee
ts,
“em
ails
” &
fo
rms f
or
Em
Co
mm
, e
tc.)
–O
n 1
.2 g
Hz, can s
end larg
er
file
s
Pacificon –
12 Oct 2013 –
K6JM
Wh
at’s fu
n a
bo
ut
D-S
TA
R?
An
sw
er:
Th
e D
-ST
AR
Ne
two
rk
�Y
ou c
an c
onnect re
peate
rs to o
ther
repeate
rs
Or
to “
Re
fle
cto
rs”
(Co
nfe
ren
ce
Se
rve
rs)
�A
ccess h
undre
ds o
f re
flecto
rs, 1000s o
f re
peate
rs a
nd h
ots
pots
�Y
ou c
an b
uild
your
ow
n inexp
ensiv
e D
-Sta
r com
patible
Hots
pot or
Repeate
r
An
d th
at ca
n c
on
ne
ct to
re
fle
cto
rs a
rou
nd
th
e g
lob
e
Pacificon –
12 Oct 2013 –
K6JM
Is I
CO
M t
he o
nly
D-S
tar
Su
pp
lier
•IC
OM
makes g
reat D
-Sta
r ra
dio
s for
DV
/DD
–In
clu
din
g 2
82
0, 3
1A
, 5
1A
as w
ell
as 7
10
0 &
91
00
HF
/VH
F/U
HF
•In
tern
et Labs o
ffers
DV
Dongle
, D
VA
P &
much
more
, lik
e the n
ew
ly a
nnounced D
V P
i
•H
am
s a
re e
xtendin
g D
-Sta
r w
ith D
IY p
roje
cts
–G
MS
K M
odem
s to c
reate
inexpensiv
e H
otS
pots
& R
epeate
rs
usin
g a
nalo
g F
M r
adio
s
–S
oft
ware
(m
ostly
fre
e)
to e
xte
nd D
-Sta
r fu
nctio
ns
–D
-Sta
r A
dapte
rs t
o a
dd D
-Sta
r com
patib
le D
V t
o a
nalo
g r
adio
s
•T
his
is n
ow
a h
ighly
active
and c
reative
are
a
•M
ultip
le v
endors
are
ext
endin
g D
-Sta
r
Pacificon –
12 Oct 2013 –
K6JM
Wh
at’s a
Ho
tSp
ot?
Note: Architecturally sim
ilar to the
DVAP, but with your own analog
radio of any power output
More info at
www.k6jm.com/dstar
Pacificon –
12 Oct 2013 –
K6JM
Wh
y H
otS
po
ts?
•B
rin
gs
D-S
TA
R n
etw
ork
to
yo
ur
ne
igh
bo
rho
od
–If
yo
ur
QT
H h
as n
o R
F a
ccess t
o a
D-S
tar
rep
eate
r
–O
r (l
ike m
y Q
TH
) is
in
a m
ult
ipath
sh
ad
ow
–O
r yo
u w
an
t to
lin
k t
o w
hate
ver
rep
eate
r w
hen
ever
yo
u w
an
t
–O
r yo
u n
eed
extr
a p
ow
er
for
extr
a r
an
ge
•It
’s a
n in
tere
sti
ng
Do
It
Yo
urs
elf
pro
jec
t
•W
ha
t is
ne
ed
ed
?–
Mo
dem
(m
an
y a
vailab
le f
or
D-S
TA
R)
–C
om
pu
ter
(e.g
. R
asp
berr
y P
i co
mp
ute
r fo
r <
$50)
–A
nalo
g F
M t
ran
sceiv
er
that
su
pp
ort
s 9
600 P
acket
–S
oft
ware
(fr
ee)
Pacificon –
12 Oct 2013 –
K6JM
Ju
st w
ha
t is
a G
MS
K M
od
em
?
•C
on
vert
s d
igit
al sig
nals
to
to
nes f
or
tran
sm
itte
r•
Co
nv
ert
s r
eceiv
ed
to
nes t
o
dig
ital ag
ain
•D
eco
des t
he g
msk p
roto
co
l (h
ead
ers
, ro
uti
ng
in
fo)
•D
oes N
OT
deco
de o
r g
en
era
te D
igit
al V
oic
e
str
eam
•C
an
be u
sed
wit
h D
V D
on
gle
an
d P
C m
ike/s
peakers
to
ad
d D
V t
o a
nalo
g r
ad
io
Pacificon –
12 Oct 2013 –
K6JM
GM
SK
Mo
de
m S
ou
rce
s•
Fre
d v
an
Kem
pen
PA
4Y
BR
–w
ww
.du
tch
-sta
r.eu
Pro
vid
es “
min
i h
ots
po
t” b
oa
rds, firm
wa
re a
nd
so
ftw
are
.
•M
atr
ix C
ircu
its &
Mo
en
Co
mm
–w
ww
.mo
en
co
mm
.co
md
istr
ibu
tes b
oa
rds b
ase
d o
n P
A4
YB
R’s
de
sig
n, co
me
s w
ith
DU
TC
H*S
tar
firm
wa
re a
nd
to
ols
.
•S
ato
sh
i Y
asu
da
7M
3T
JZ
/AD
6G
Z
–d
-sta
r.d
yn
dn
s.o
rg/
De
sig
ne
d th
e fir
st N
od
e A
da
pte
r. A
lso
pro
du
ce
s
firm
wa
re a
nd
to
ols
.
•D
VR
PT
R P
roje
ct
–sh
op
.dvrp
tr.d
e/
Use
s D
SP
fir
mw
are
fo
r G
MS
K m
od
em
fu
nctio
n.
Pro
vid
es s
oft
wa
re. T
he
y p
lan
to
off
er
ne
w b
oa
rds w
ith
em
be
dd
ed
AM
BE
ch
ip.
–w
ww
.dvrp
tr.n
et/
Off
ers
DV
RP
TR
Ve
rsio
n 1
bo
ard
•P
AP
A S
yste
m (
co
min
g s
oo
n)
–w
ww
.pap
asys.c
om
/in
dex.p
hp
?p
ag
eid
=g
mskb
oard
sG
MS
K b
oa
rds to
wo
rk w
ith
Ra
sp
be
rry P
i a
nd
Ad
uin
o m
icro
co
mp
ute
rs
Pacificon –
12 Oct 2013 –
K6JM
Ho
tSp
ot/
Re
pe
ate
r S
oft
wa
re•
DVAR Hot Spot –Mark McGregor KB9KHM
•First and still most popular
•Easy to configure
•Supports DPlus linking
•WinDV –
DUTCH*Star –
Fred van Kempen PA4YBR
•DPlus, Dextra, DCS linking, ircDDB Gateway & Callsign Routing
•DPRS-APRS interface
•Works with GMSK Modem, DVAP, DV Dongle
•DTMF commands over RF and more…
•GMSK Repeater & ircDDBGateway –
Jonathan Naylor GK4LKX
•Windows and Linux
•DPlus, DExtra & DCS, ircDDB and CCS Callsign Routing
•STARnet Digital
•Full function, yet fits on a small Linux pc like Raspberry Pi
•DVRPTR Control Center
•Works with DVRPTR boards
•DPlus, DExtra, DCS, ircDDB Gateway & CCS Callsign Routing
•G4ULF NI-Star –
David Lake G4ULF
•Creates Repeater compatible with ICOM Repeater/Gateway
•Works with all G2 Gateway Add-on Apps
•Learn more from Rich Timpa –KC6OBJ –the next presenter
Pacificon –
12 Oct 2013 –
K6JM
Wh
at’s n
ew
in
D-S
tar?
•S
mall,
or
eve
n t
iny
com
pute
rs to r
un n
etw
ork
ing
soft
ware
–R
aspberr
y P
i has b
ecom
e s
uper
popula
r –deve
loped a
s e
ducational t
ool
–$35 p
lus S
D c
ard
, pow
er
supply
& c
able
s
–A
noth
er
ste
p im
pro
vem
ent in
low
ering c
ost of D
IY p
roje
cts
–R
uns L
inux
•B
oard
s that plu
g into
the P
i–
DV
Pi –
Inte
rne
t L
ab
s (
DV
AP
, D
V D
on
gle
). B
asic
ally
a A
MB
E c
hip
on
a b
oa
rd, w
ith
co
ntr
ol a
nd
RX
/TX
au
dio
fr
om
An
dro
id d
evic
e (
tab
let,
sm
art
ph
on
e)
–D
UT
CH
*Sta
r P
i G
MS
K b
oa
rd
–P
AP
A S
yste
m G
MS
K B
oa
rds
•F
or
Ard
uin
o, lik
e n
orm
al G
MS
K b
oa
rd, b
ut le
ss e
xpe
nsiv
e
•F
or
Pi, a
n in
exp
en
siv
e a
dd
-on
GM
SK
bo
ard
(u
nd
er
de
ve
lop
me
nt)
•D
SP
-based m
odem
s (
DV
RP
TR
pro
ject)
•M
ore
Open S
ourc
e s
oft
ware
Pacificon –
12 Oct 2013 –
K6JM
Raspberr
y P
i
•Credit-card sized single board Linux computer
•$35, $50 with extras
•Hams are using for Hotspots and Repeaters
•G4KLX and FreeStar software
•DUTCH*Star DV Node for Linux/Mac under development
•Easy to setup:
•SD card images –burn, configure and go
•Use right away, then begin to learn more Linux
•I have installation notes that I’ll share
�Email me: [email protected]
Pacificon –
12 Oct 2013 –
K6JM
DU
TC
H*S
tar
Pi G
MS
K M
od
em
•Tiny, fits on Raspberry Pi’s GPIO pins (SPI bus)
•Runs on 3.3v, won’t overload Pi’s power system
•Stackable (e.g. 2 boards for multiple radios)
•Has GMSK chip & DUTCH*Star firmware
•Can add micro RF transceiver board
Pacificon –
12 Oct 2013 –
K6JM
DU
TC
H*S
tar
Pi T
ran
sce
ive
r B
oa
rd
•Fits on Pi GMSK Modem board
•Creates tiny, low power full-featured Hotspot
•No cables
•Under development
Pacificon –
12 Oct 2013 –
K6JM
DV
RP
TR
Pro
ject
•G
erm
an
te
am
led
by
Ja
n D
O1
FJN
de
sig
ne
d D
SP
sty
le
bo
ard
an
d O
pe
n S
ou
rce
firm
wa
re
•F
ew
er
de
dic
ate
d c
hip
s, so
ftw
are
do
es th
e w
ork
•V
1 b
oa
rd h
ad
GM
SK
Mo
de
m fu
nctio
ns
•A
dd
-on
bo
ard
ha
d A
MB
E c
od
e c
hip
fo
r D
-Sta
r
•C
on
tro
l C
en
ter
pc s
oft
wa
re
•Ja
n le
ft te
am
–V
2 b
oa
rd s
imila
r b
ut n
ot w
ide
ly a
vaila
ble
•V
3 b
oa
rd la
un
ch
ing n
ow
fro
m G
erm
an
y
•V
1 b
oa
rd s
till
ava
ilab
le,
no
w f
rom
Ca
na
da
•P
ow
erf
ul i
de
a, b
ut lo
w-c
ost
Pi p
ulls
de
sig
n in
ne
w
dire
ctio
n
Pacificon –
12 Oct 2013 –
K6JM
Sh
am
ele
ss P
lug
•w
ww
.moencom
m.c
om
•I sell
the S
tar*
Board
GM
SK
Modem
–B
uild
your
ow
n H
ots
pot or
D-S
tar
com
patible
Repeate
r
–In
clu
des D
UT
CH
*Sta
r firm
ware
–N
orm
ally
$119 p
lus S
&H
–G
reat
support
•C
heck o
ut booth
(acro
ss fro
m A
RR
L)
–S
pecia
l show
prices
Pacificon –
12 Oct 2013 –
K6JM
Wh
en
I W
ish
Up
on
a S
tar…
•D
-Sta
r h
as tra
ctio
n/in
fra
str
uctu
re a
nd
will
sta
y a
s a
po
pu
lar
DV
te
ch
no
log
y.
DM
R
will
to
o.
•W
he
re s
ho
uld
Ha
m D
igita
l V
oic
e g
o n
ext?
•M
y a
nsw
er:
CO
DE
C2
–O
pen S
ourc
e, easy
to e
mbed in p
roje
cts
–If
one m
anufa
ctu
rer
made C
OD
EC
2 D
V
radio
s, th
ere
’d b
e a
n e
xplo
sio
n o
f cre
ative
add-o
n f
unctions
–T
hese thin
gs take tim
e. E
njo
y D
-Sta
r now
!Pacificon –
12 Oct 2013 –
K6JM
Su
mm
ary
•D
-Sta
r is
mo
vin
g b
eyo
nd
origin
al IC
OM
vis
ion
•T
his
stu
ff is
fu
n a
nd
we
ca
n a
ll d
o it
•L
ots
of su
pp
ort
ava
ilab
le–
Ge
ttin
g S
tart
ed
: w
ww
.k6
jm.c
om
/dsta
r
–Y
ah
oo
Gro
up
s:
•gm
sk_dv_
node
•dsta
r_deve
lopm
ent, p
cre
peate
rcontr
olle
r, irc
ddbgate
wa
y•
gm
sk_dv_
modem
•D
VR
PT
R
–V
en
do
rs’ s
ite
s:
•M
oenC
om
m K
6JM
w
ww
.moencom
m.c
om
•F
red v
an K
em
pen P
A4Y
BR
w
ww
.dutc
h-s
tar.
eu
•S
ato
shi Y
asuda 7
M3T
JZ
/AD
6G
Z d
-sta
r.dyn
dns.o
rg/
•D
VR
PT
R:
shop.d
vrptr
.de
and w
ww
.dvr
ptr
.net
Pacificon –
12 Oct 2013 –
K6JM