If you do this, make sure that when you remove the 5v pin 7 is either grounded directly or
via a resistor. if you let it float, it may inhibit output in that condition.
Yes, I see that Ed didn't do that in his schematic -- maybe it's rig-dependent, but I've
had this problem.
On 6/25/2013 10:46 AM, Edward R Cole wrote:
One other way to prevent the K3 from transmitting (it will still key but with no RF
output). Apply 5v to pin-7 of the ACC after placing TX INH set to HI in the CONFIG
menu. Remove the 5v and the radio will function normally.
http://www.kl7uw.com/TX-INHIBIT.htm
shows how to use inhibit on VHF bands but not on HF. A simple modification could be
done where the relay is replaced by a toggle switch and eliminate the transistor and
BAND and DIGOUT circuitry. The voltage regulator, 1K resistor, and diode are not needed
and can be replaced with a 2.2K to 10K resistor (K3 manual, page 19) connected to 12v
thru a toggle switch.
I just boot my computer before powering up the K3 (I am not using the LP
Bridge).
73, Ed - KL7UW
http://www.kl7uw.com
dubus...@gmail.com
"Kits made by KL7UW"
--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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