[amsat-bb] Re: Kenwood THD7E Problem with PC connection.

Henk, PA3GUO hamoen at iae.nl
Wed Jun 13 08:38:33 PDT 2007

Hi Paul,

A second shot in the dark:

I recall that a few years ago new SW was released that had to overcome
delays in serial communication due to Windows XP (and 2000?).

Basically you had to start the SW, do a 'write to radio', turn OFF radio,
turn ON radio, and then the actual writing/reading starts.

But: that was to overcome an "communication error", not "radio invalid".
Nevertheless I wanted to mention this.

Did you try with older SW versions or running on older PC's/OS's ?
You could also try other SW, I used LINK7 in the past as well.

Henk, PA3GUO
(owns also the 'old' THD7)


Hi Kenneth, I tried all ways, TNC on and off etc etc, the comms starts ok
but reports "The radio is invalid" every time?
I hate programing up the radio via the front controls!

Paul Luggar



Amsat-UK Member 6484

www.m0sci.co.uk/forum   Devon and Cornwalls Amateur Radio Message Board

----- Original Message -----
From: "Ransom, Kenneth G. (JSC-OC)[BAR]" <kenneth.g.ransom at nasa.gov>
To: "Paul Luggar" <luggsey at hotmail.com>
Sent: Wednesday, June 13, 2007 2:48 PM
Subject: RE: [amsat-bb] Kenwood THD7E Problem with PC connection.

Just taking a shot in the dark, have you tried turning the TNC off and
then attempt to program the radio?

Kenneth - N5VHO

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