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TUNE before power?

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Ramon Tristani

TUNE before power?

I just finished building the K3 and everything seems to be working just fine except that after changing bands I need to push and hold the TUNE button in order for the radio to transmit to full power. It is as if I had to "prime" the radio to enable full power output. I do not have the Auto Tuner installed but my antenna is reasonably flat in the bands where I have been using the radio. After "priming" the radio transmits fine in SSB. Any suggestions?

Thanks,
Ramon Tristani, kp4ge

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Don Wilhelm-4

Re: TUNE before power?

Ramon,

I suggest that you calibrate the wattmeter, and then use K3 Utility to
calibrate the transmit gain. Yes, you can do the TX Gain calibration
"by the manual", but the K3 Utility does it automatically - just sit
back and watch as ot changes bands osn goes through the calibration
procedure - just like manual, but without the button pushing.

73,
Don W3FPR

Ramon Tristani wrote:

> I just finished building the K3 and everything seems to be working just fine except that after changing bands I need to push and hold the TUNE button in order for the radio to transmit to full power. It is as if I had to "prime" the radio to enable full power output. I do not have the Auto Tuner installed but my antenna is reasonably flat in the bands where I have been using the radio. After "priming" the radio transmits fine in SSB. Any suggestions?
>
> Thanks,
> Ramon Tristani, kp4ge
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>

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Ramon Tristani

Re: TUNE before power?

Don:

I finally got hold of a dummy load and performed the procedure with the K3 Utility. It is working perfectly well now. Many thanks! Thanks go to W7IJ also for pointing me in the right direction to buy the K3 in the first place.

Ramon

On Jun 27, 2010, at 11:33 PM, Don Wilhelm wrote:

> Ramon,
>
> I suggest that you calibrate the wattmeter, and then use K3 Utility to calibrate the transmit gain. Yes, you can do the TX Gain calibration "by the manual", but the K3 Utility does it automatically - just sit back and watch as ot changes bands osn goes through the calibration procedure - just like manual, but without the button pushing.
>
> 73,
> Don W3FPR
>
> Ramon Tristani wrote:
>> I just finished building the K3 and everything seems to be working just fine except that after changing bands I need to push and hold the TUNE button in order for the radio to transmit to full power. It is as if I had to "prime" the radio to enable full power output. I do not have the Auto Tuner installed but my antenna is reasonably flat in the bands where I have been using the radio. After "priming" the radio transmits fine in SSB. Any suggestions?
>>
>> Thanks,
>> Ramon Tristani, kp4ge
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>