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Re: Getting Into Digital ?



Yes, AO-16 is just a digipeater at the moment.

73's

Don Woodward
KD4APP
AMSAT 33535
kd4app@amsat.org
http://kd4app.webhop.org


----- Original Message -----
From: "Jon Ogden" <na9d-2@speakeasy.net>
To: "Don Woodward" <dbwoodw@alltel.net>; "Peter Moscatt"
<pmoscatt@yahoo.com>; <amsat-bb@AMSAT.Org>
Sent: Tuesday, February 04, 2003 10:02
Subject: Re: [amsat-bb] Getting Into Digital ?


> My mistake.  I wasn't aware of what the newer birds have on them.  You
> mention AO-16 though.  I didn't think AO-16 was active except for the
> digipeater function...
>
> Jon
>
> on 2/4/03 7:40 AM, Don Woodward at dbwoodw@alltel.net wrote:
>
> > On SO-49/SAFIR-M you could use a 1200 baud hardware packet modem for
the
> > uplink and use a software program like MixW to decode the 9600 baud
> > downlink - MixW will do 9600 G3RUH/PSK.
> >
> > AO-16 you can use two software programs - MixW for the 1200 BPSK
downlink
> > and UPW for the uplink.
> >
> > 73's
> >
> > Don Woodward
> > KD4APP
> > AMSAT 33535
> > kd4app@amsat.org
> > http://kd4app.webhop.org
> >
> >
> > ----- Original Message -----
> > From: "Jon Ogden" <na9d-2@speakeasy.net>
> > To: "Peter Moscatt" <pmoscatt@yahoo.com>; <amsat-bb@AMSAT.Org>
> > Sent: Tuesday, February 04, 2003 07:32
> > Subject: Re: [amsat-bb] Getting Into Digital ?
> >
> >
> >> Well, you won't get much luck with a standard 1200 baud modem.  The
> > digital
> >> sats that operate at 1200 are few and far between these days.  It's
just
> > not
> >> fast enough.  On top of that, the 1200 baud sats were designed to use
a
> >> special type of 1200 baud packet.  They used what was called
Manchester
> >> encoding on the uplink and PSK on the downlink.  You can modify your
TNC
> > to
> >> do Manchester pretty easily, but the downlink requires a very special
and
> >> expensive modem.
> >>
> >> The only standard 1200 baud satellites in orbit would be the ISS and
> >> WB4APR's PC-Sat.  PC-Sat is designed to digipeat APRS packets.  That's
> > it.
> >> I've not played with the ISS system and I don't know what's there
either.
> >>
> >> Once you move up to 9600 baud, you have a lot more choices.
> >>
> >> I know, it bites!
> >>
> >> 73,
> >>
> >> Jon
> >> NA9D
> >>
> >> on 2/3/03 9:24 PM, Peter Moscatt at pmoscatt@yahoo.com wrote:
> >>
> >>> I am wanting to get into working the digital sats but
> >>> unsure which ones to home in on to get my feet wet.
> >>>
> >>> I have an FT847 with a MFJ-1278 hooked up to it, this
> >>> is capable of 1200bd.
> >>>
> >>> Any help here would be greatly appreciated.
> >>
> >> -------------------------------------
> >> Jon Ogden
> >> NA9D (ex: KE9NA)
> >>
> >> Citizen of the People's Democratic Republik of Illinois
> >>
> >> Life Member: ARRL, NRA
> >> Member:  AMSAT, DXCC
> >>
> >> http://www.qsl.net/na9d   <- Updated on 1/22/03!!!
> >>
> >> "A life lived in fear is a life half lived."
> >>
> >>
> >> ----
> >> Sent via amsat-bb@amsat.org. Opinions expressed are those of the
author.
> >> Not an AMSAT member? Join now to support the amateur satellite
program!
> >> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> >
> > ----
> > Sent via amsat-bb@amsat.org. Opinions expressed are those of the
author.
> > Not an AMSAT member? Join now to support the amateur satellite program!
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> >
>
> -------------------------------------
> Jon Ogden
> NA9D (ex: KE9NA)
>
> Citizen of the People's Democratic Republik of Illinois
>
> Life Member: ARRL, NRA
> Member:  AMSAT, DXCC
>
> http://www.qsl.net/na9d   <- Updated on 1/22/03!!!
>
> "A life lived in fear is a life half lived."
>
>

----
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