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Re: 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!
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> 
> ----
> 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!
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> 

-------------------------------------
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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