Dear all. Could you help me please. do we need TNC with ic910h for reciveing digital signals for example in ax.25 format from satellites? Thanks for your help and attention. Best Regards. Nayer Mahdinejad. On Sun, Oct 31, 2010 at 2:56 PM, PA3GUO [email protected] wrote:
Hi Jack
I have a Kenwood TS2000, which is very similar to the IC910. For this discussion one important difference, the TS2000 has a build in TNC, which can be used on either bands & sat mode.
Many years I simply connected that build-in TNC to my PC and used Alogger under Windows (via RS232) for packet. Mostly ISS APRS, but also to command RAFT, ANDE, etc.
Two years ago I bought a 2nd hand PK96, external TNC, which I connect to the TS2000 (ACC plug) and PC (RS232). Works fine. It allows me to use the build in TNC on one band and the PK96 on the other band. Also, when I use the build-in TNC, I cannot use CAT (doppler) access. So to do AND doppler compensation (HRD) AND packet I need the external TNC. Also with the PK96 I use ALogger.
Another option is to feed the audio to MixW, and create a virtual link in SW: connect MixW to Alogger, then you can set up an APRS Satgate without hardware TNC.
http://www.youtube.com/watch?v=FSFVTN2KKog shows how ISS APRS is decoded by MixW.
Audio can directly be decoded by MMSSTV for SSTV (both TX/RX). A SW only solution gets you running for SSTV. I did SSTV over HO68 this way: http://www.pa3guo.com/ho68_sstv_dec30_007.jpg
One year ago I added an interface between the radio & PC, to decouple them physically (for 20+ years I was 'unsafe'). For this I use a kit from http://www.ezkits.eu/. This is insurance only, it doesn't add anything new.
Then, I use HRD for Doppler control, but it can do much more including decoding of many digital modes.
When you connect the audio of the IC910 to a PC and run MixW you are operational to receive APRS already ! Maybe start there and extend then step by step. (oh, you then can also decode 9k6 from AO51)
Success ! Henk -- Henk, PA3GUO http://www.pa3guo.com
============================== I'm in the process of adding digital mode to my satellite station which consists of IC910 radio using SATPC 32 12.8A. I will be using a Signalink USB & would like to know if this is the way to go. I will be using it for packet, digipeater, SSTV.etc. Two programs that I'm looking into using are MIXW & or mltimode. I would appreciate any suggestions or help about moving foreword with this configuration.
Thanks for any input. Jack WA1ZDV
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb