[Elecraft] [K3] KXV3A fails 1 mW calibration

[Scott]

I too have the same problem with the same error print out.  It passed 
all THREE TX GAIN calibration tests just fine when I built the radio 
last year.  Subsequently I received an on air report the transmitter was 
off freq by a small amount.  Soooo, I ran the TX gain calibration.  It 
passed lo and hi but failed the KXV3A using the Elecraft K3 Utility.  I 
did not try to do a manual calibration.  I sent an email to Elecraft on 
7 Nov 11 but received no response.  I'm sure they were very busy ramping 
up for Xmas and all.

I have not changed any settings that affect the KXV3A as I have no XVTRS 
in/attached to the radio.  My P3 works just fine.  I did update all 
firmware and then this problem cropped up but I doubt it's a firmware 
issue.  It's probably operator error but I sure don't know what I did to 
cause the KXV3A milliwatt TX Gain calibration to fail, either that, or 
I've some hardware failure in the KXV3A that fails to transmit but is 
still ok for P3 operation.

I suppose it could be the BNC cable between the KXV3A and the DL.  I'll 
swap that out and report back.

73
Scott
KF5MHS

On 2/12/2012 11:51 AM, Robert Bajuk wrote:
> I do have the same problem with TX Gain Calibration, 5w and 50w calibration
> goes well, but 1mW calibration fails, I am getting the error something
> like: "Power set to 0.1 mW, 1.9 MHz,  TX gain calibration failed because
> transmit power did not reach the expected value".
>
> I did reload FW, EE INIT, settings restore, nothing helps.
>
> KXV3A is enabled and set to normal in config, no jumpers on W1 and W2, 50
> Ohm dummy load on XVTR Out is OK. XV144 does not work properly, I believe
> that is connected with XVTR Out problems. XVTR parameters in config are set
> correctly.
>
> Any ideas?
>
> 73 Robert
>
> 2012/2/12 Don Wilhelm<w3fpr at embarqmail.com>
>
>> Did you forget to cut the jumpers when you installed the KXV3A?
>>
>> 73,
>> Don W3FPR
>>
>> On 2/12/2012 11:22 AM, Pierfrancesco Caci wrote:
>>> I get the following error when trying the 1 mW calibration for a freshly
>>> installed KXV3A:
>>>
>>> Starting 1 milliwatt calibration.
>>> Calibrating at 1.900 MHz
>>> IsSamplingComplete: Unexpected response 'DB 0.10 MW;' to ''. State 220
>>> Calibration power settled at ' 0.10 MW;'
>>> 1 milliwatt calibration failed.
>>> Elapsed time: 19.2 secs
>>>
>>>
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