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Author Topic: Packet without a TNC?  (Read 3785 times)
N1QMZ
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Posts: 3




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« on: September 13, 2000, 12:57:54 PM »

Hello;
I've just bought a new radio for the car and have an extra 2 meter HT kicking around the house (Radio shack 202). I'm a bit challenged budget wise (radio competes with fly fishing and shoes for the kids) and was curious if there were any work-arounds for getting on packt without having to purchase a TNC. If it's essentially shifting tones, is there anyone who's developed software TNC emulation that would use either a sound board or serial port to allow this? Maybe the cost would be more than cheap TNC I guess, but I thought I'd ask out of curiosity...
Thanks;
Eric.
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KQ6EA
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Posts: 611


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« Reply #1 on: September 15, 2000, 12:46:23 AM »

If you go to: www.ife.ee.ethz.ch/~sailer/pcf/winsm (WHEW!)
you'll find packet radio soundcard software for your Windows PC.
73, Jim KQ6EA
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KG4JMW
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Posts: 11




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« Reply #2 on: January 16, 2001, 09:45:00 PM »

I would like some help, I have a yaesu ft-470, I would like to use the sound card as a tnc. Can anybody help with the cable requirements. Please reply to my email wstevensb@aol.com
 
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KD7NYQ
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Posts: 2




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« Reply #3 on: December 08, 2003, 09:18:11 PM »

If you look here, this is a site for using a modem, not a full TNC, that you can build yourself.  <http://www.qsl.net/w5aox/emul.html>  It requires a bit on the software side, but it sounds promising.  They are called BayCom Modems.  Hope this helps.  Good Luck.

KD7NYQ
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KC8VWM
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Posts: 3190




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« Reply #4 on: January 15, 2004, 12:51:31 PM »


PC/FlexNet allows standard PC soundcards to be used as Packet Radio modems.

http://www.baycom.org/~tom/pcf/winsm/

This link works

73

Charles - KC8VWM
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W5AOX
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« Reply #5 on: July 15, 2005, 10:38:21 AM »

The absolute easiest ways to run packet without any external TNC or much of anything except a simple interface are:
Multipsk:  http://members.aol.com/f6cte/index_anglais.htm
(This is a pretty cool multi-mode system that does packet in addition to several other modes, free)
OR
AGWPE:
http://www.elcom.gr/sv2agw/inst.htm
(Look for and download the free version, AGWPE.ZIP)

Any of these software-tnc systems will require some kind of interface to couple microphone and speaker audio from your transceiver to your PC sound card inputs/outputs.  For monitor only, a simple 1/8" phone plug patch cord will get you running.  To transmit, I find it easier to use a $40 Buxcomm interface which has all the connections and matching and level setting included for about the price I would pay for parts to build it myself.  I have also used a homebrew cable with a simple 10K pot in the transmit audio line to adjust the tx audio down where it belongs, but using VOX for PTT is a pain with my IC706, and most VHF/UHF rigs have no VOX.
The only disadvantage to these soundcard TNC systems is that they, well...... tie up your SOUNDCARD.  You can't do any other soundcard function while your TNC software is running.  Unless you have 2 separate soundcards.  But I love them anyway and use them all the time, both base and mobile.
Jim W5AOX
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