[Elecraft] KPA500

[Jack Brindle]

There should be a blocking adapter in the cable kit that should be attached on the K3 side of the AUX cable. This is used to block the INHIBIT# and other signals that should not actually go to the KPA from the K3. Some signals are already cut in the cable, but there are some that actually might be of use. INHIBIT# is one of them, but is very rarely used.
Also, make sure that the INHIB IN entry in the KPA’s menu is set to DISABLE.

While you are at it, make sure all the cables go where they are supposed to go. When in STBY, the KPA will show power out and SWR when power is above 25 watts. If you are not seeing this then make sure that you have the K3 output going into the KPA’s input. AND, make sure that you have that antenna output selected on the K3.

- Jack B, W6FB


> On Nov 1, 2014, at 11:33 AM, Wes (N7WS) <wes at triconet.org> wrote:
> 
> Curiously, I just yesterday fired up my new KPA500 (kit) and had a similar issue.  I reached out to Elecraft but was away when the return call came through.  I was sent a procedure for tuning the KAT500, which is hard to do when the K3 refuses to transmit.  As it turns out, for reasons that escape me, TX INH was set Hi in my K3, despite me never (knowingly) have set it, since I have no transceivers.  Go into the Config menu and dial up TX INH and make sure it's "OFF".
> 
> Wes  N7WS
> 
> On 11/1/2014 9:03 AM, Steve Lett wrote:
>> I just purchased the entire K line. I have the K3, P3 and KAT500 working
>> just fine. I cannot get any power through the KPA500. It switches bands and
>> it appears to be okay. But when I push the foot switch on my K3, the K3
>> transmits but the KPA500 is not producing any power or SWR. I must be
>> missing something. Do I need to change any of the default settings on the
>> KPA500 menu? On the back of the amplifier, I have the antenna in and out
>> connected as well as the 9 pin cable from the AUX on the amp to the AVP on
>> the KAT500. Thank for your help.
>> 
>>  
>> Steve, KB3TAW
>> 
>> ______________________________________________________________
>> 
> 
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