[amsat-bb] Signalink Modification for 9600 baud

Rick Kowalewski rick at vk6xlr.net
Thu Oct 12 00:44:34 UTC 2017

Well that's interesting.

I've used a USB Signalink with an Icom IC-9100 and hs-soundmodem to 
successfully decode 9600 from Falconsat-3.
To my knowledge, the Signalink has not been modified.

Rick VK6RK

On 12/10/2017 05:55, christy hunter wrote:
> 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
> https://www.soundcardpacket.org/5modes.aspx
> 73
> Christy KB6LTY

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