[amsat-bb] Kenwood TH D72A and packet TNC

John Brier johnbrier at gmail.com
Wed May 4 18:31:52 UTC 2016

You have to set the path right. Here is Patrick, WD9EWK's explanation:

"Besides using different frequencies (145.825 for the ISS, vs. 144.390 for
the terrestrial APRS), you will need to define a path that is different
than the WIDE1-1,WIDE2-1 that the HT will use by default. Look for menu
option 3H0 to set up the new path. Press MENU, select APRS, then spin the
VFO knob until you see PacketPath. You will want to use the 4-way button to
get over to the Type field. Change that from New-N to Others, then move to
the PATH field and enter ARISS. When you change the path fro New-N to
Others (or one of the other paths available in the HT), you have to press
the * key to confirm you are choosing that particular path. This will let
you move between terrestrial and ISS packet/APRS."

Another issue I have run into is when you beacon to the ISS you have to
have the squelch closed or else it won't TX at all.

Apparently some TNCs require this, including the Kenwood TNCs.


On May 4, 2016 2:17 PM, <ingejack at cox.net> wrote:

> I am trying to set my internal packet tnc in my Kenwood TH D72A  to
> contact ARISS to no avail !! I have tried AGWPE and UISS to work with the
> radio but no luck. I was wondering if anyone out there has been able to
> contact ARISS with The TH D72A TNC ?? If so, how are you hooking up the
> radio to the computer to work ?? I am about to order the Siganlink Usb that
> comes with the cables set up for this radio but hesitate to do so if the
> built in TNC can work!! Any help will be appreciated  Thank You  JACK-KC7MG
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