[Elecraft] K3 VSWR Meter Calibration

[Ramon Tristani]

Yes, I performed tests with and without the ATU in the circuit. Howard, from Elecraft Support contacted me off the list and requested information that I just sent to him. 

Thank you,
Ramon, NQ9V


Ramón E. Tristani Sr.
ramon.tristani at icloud.com <mailto:ramon.tristani at icloud.com>
https://www.flickr.com/photos/nq9v/ <https://www.flickr.com/photos/nq9v/>
www.tristaniministries.org <http://www.tristaniministries.org/>
www.tristaniphotography.com <http://www.tristaniphotography.com/>
> On May 6, 2016, at 3:06 PM, Eric Swartz - WA6HHQ, Elecraft <eric at elecraft.com> wrote:
> 
> Is the K3 ATU in bypass?
> 
> Eric
> elecraft.com
> 
> On 5/6/2016 11:26 AM, Don Wilhelm wrote:
>> Ramon, 
>> 
>> There is a calibration procedure in the manual to calibrate the wattmeter for forward power, but not for SWR. 
>> I suggest you contact K3support for further assistance. 
>> 
>> 73, 
>> Don W3FPR 
>> 
>> On 5/6/2016 11:50 AM, Ramon Tristani wrote: 
>>> The VSWR indication in my K3 seems to be off considerably when connected to a 50 ohm dummy load. An external VSWR meter indicates 1:1 while the K3 most of the time indicates readings varying up to 2:1 at times. I am using the same short coax stub to connect the instruments one at a time to eliminate other possibilities. Is there a way to “calibrate” the VSWR indicator in the K3? My K3 is serial number 4416. The Auto Tuner in it works fine and reduces the indication to 1:1 as it is supposed to but when bypassing it the VSWR indication will always be off. Any suggestions? 
>>> 
>> 
>> ______________________________________________________________ 
>> Elecraft mailing list 
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft <http://mailman.qth.net/mailman/listinfo/elecraft> 
>> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> 
>> Post: mailto:Elecraft at mailman.qth.net <mailto:Elecraft at mailman.qth.net> 
>> 
>> This list hosted by: http://www.qsl.net <http://www.qsl.net/> 
>> Please help support this email list: http://www.qsl.net/donate.html <http://www.qsl.net/donate.html> 
>> Message delivered to eric.swartz at elecraft.com <mailto:eric.swartz at elecraft.com>
>