[amsat-bb] Signalink Modification for 9600 baud

jeff griffin kb2m at arrl.net
Thu Oct 12 11:15:05 UTC 2017

I have 2 or 3 9600 baud capable TNC's at my winter home in Florida. When I retired and downsized 3 years ago I sold a lot of my ham related stuff. The TNC's weren't a popular item, but now they are! When I get back down there in a few weeks for the winter I'm going to bring my IC-9100 with me and get back on the PACSAT's. I will then have two left, they will be going up for sale. Price will be very reasonable. Anyone want one let me know off list.

73 Jeff kb2m

-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of christy hunter
Sent: Wednesday, October 11, 2017 5:55 PM
To: amsat-bb at amsat.org
Subject: [amsat-bb] Signalink Modification for 9600 baud

based on discussion with a technician at Tigertronics, the USB signalink will not allow 9600 baud packet due to the frequency response is too narrow. He said none of the commercial external soundcards will work with 9600 bd packet. The only option is to construct a circuit, or use a
9600 baud TNC. (not too many options on that front.)

the Tigertronics website is a bit miss-leading because it ref. 9600 baud on its wiring diagram. Mine is setup for the 6pin miniDin connector(the pin 4 - for 9600 bd on my radio dataport- is not connected) for my FT 847.  At this time I can only decode by connecting the 9600 pin on my radio (dataport) to a line-in to my Laptop soundcard (and not using a isolation circuit).

It would be nice to hear of any solution to this, without buying a $400 TNC (kantronics 9612).

there are several websites that talk to this issue, here is one of them


Christy KB6LTY

This email has been checked for viruses by AVG.

Sent via AMSAT-BB at amsat.org. 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

More information about the AMSAT-BB mailing list