The FoxTelem manual doesn't quite detail how to decode telemetry from AO-85 in a step-by-step fashion, but it does layout the various options.

http://www.amsat.org/wordpress/wp-content/uploads/2015/09/foxtelem_manual_10...

A TNC is not needed. You need either an FM receiver capable of supplying unfiltered audio (marketed as 9600 baud capable) or an SDR (like a FUNcube Dongle or SDRPlay).

73,

Paul, N8HM

On Tue, Aug 30, 2016 at 4:05 PM, Gerald Payton [email protected] wrote:

While awaiting "parts" to assemble my station, I am interested in the TELEMETRY reception from the birds. I was looking at the "Leader Board" for FOX-1A on Amsat.org. Looking at some of those stations posted there I noticed that FoxTerm 1.04f software listed, but no TNCs. Now I am confused.

I believe that the FoxTerm software may decode received audio from the passes, but what about other satellites. Is a TNC needed, especially with the 9600 baud?

I'm sorry, I am trying to figure out HOW to receive and decode the telemetry signals and just do not comprehend the procedures. The AMSAT website does not seem to supply that information, and neither does the "Getting Started 2016" book.

If it is too much to answer here, please contact directly at my email: [email protected]

73,

Jerry AB5R _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb

El 30/08/16 a las 22:05, Gerald Payton escribió:

I believe that the FoxTerm software may decode received audio from the passes, but what about other satellites. Is a TNC needed, especially with the 9600 baud?

Hi Gerald,

These days you can do decode everything on the computer. No TNC is needed.

Rough list of what's being transmitted out there and what programs you can use:

* 1k2 AX.25 AFSK and 9k6 AX.25 FSK. This is like your regular packet radio. You can use UZ7HO soundmodem, direwolf, or many other software TNC programs.

* Faster AX.25 FSK. 19k2 is common. Some of the 9k6 AX.25 software also supports this faster speeds.

* 1k2 AX.25 BPSK. This is transmitted by the QB50p satellites and perhaps some others. You can use UZ7HO and warbler.

* 9k6 AX.25 BPSK. Transmitted by 3CAT-2. There is an alpha version of UZ7HO and a GNUradio decoder in gr-satellites.

Non-AX.25 satellites:

* FUNcube and FUNcube-2, which transmit 1k2 BPSK with FEC. You have the FUNcube dashboard software.

* LilacSat-2. Transmits: 9k6 BPSK with FEC, 4k8 GMSK with FEC and subaudio telemetry with FEC. There is a GNUradio decoder from Harbin Institute and a modified decoder by me: https://github.com/daniestevez/lilacsat

* GOMX-3. Transmits 19k2 FSK with FEC. There is a GNUradio decoder in gr-satellites.

* AAUSAT-4. Transmits 9k6 or 2k4 FSK with FEC. There is a GNUradio decoder in gr-satellites.

* Some others I'm not so familiar with. We're trying to add support for more satellites in gr-satellites. Specially for those which are not supported by other software. I'm open for suggestions on which satellites you want to see decoded (for GOMX-1 and ÑuSat we've tried but we lack the details about the telemetry format).

Then, Mike DK3WN has a very complete set of programs to analyse the telemetry: http://www.dk3wn.info/software.shtml Also, take a look at his blog to see what one can achieve: http://www.dk3wn.info/p/

About submitting telemetry online: AO-85 (and future foxes) telemetry goes to the amsat.org web. FUNcube telemetry goes to the FUNcube data warehouse. The rest of the satellites go to PE0SAT telemetry server: http://tlm.pe0sat.nl/

Also helpful, lists of frequencies, modes and satellites: http://www.pe0sat.vgnet.nl/satellite/frequencies/ https://db.satnogs.org/

73,

Dani EA4GPZ.