[Elecraft] K3 Receiver frequency adjustment

[N4ZR]

Amen, Dave.  After all, the "retail" DX cluster network rounds frequency 
to the nearest 0.1 KHz.  I think RVZ could do worse than to use WWV at 
10 or 15 MHz to verify his K3's calibration

And FWIW, a word or two from the RBN perspective - we have been working 
for several months to improve the frequency calibration of the RBN, by 
helping the stations that combine prolific spotting with less than ideal 
calibration.  SM7IUN has come up with a very neat tool for measuring the 
average accuracy of each active RBN node over each Zulu day, and posting 
the results nightly at <https://sm7iun.se/rbnskew>.

The vast majority of prolific RBN nodes are already within 5 parts per 
million, which equates to only 0.07 KHz on 14 MHz.  The very "worst" 
ones are off by around 15 ppm, or a bit over 0.2 KHz on 20m, and I have 
been working with them, one by one, trying to bring their nodes closer 
to the standard.

For users of the Red Pitaya and QS1R receivers, as well as the other 
receivers directly supported by VE3NEA's Skimmer Servers, correcting 
calibration is a simple matter, and we've seen some good results, with 
others forthcoming soon, I hope.

73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 9/20/2020 3:08 PM, David Gilbert wrote:
>
> Why don't you check an actual known frequency???  Relying on packet 
> spots for anything seems foolish to me.
>
> Dave   AB7E
>
>
> On 9/20/2020 12:04 PM, RVZ via Elecraft wrote:
>> Hi Guys,
>>
>> My K3 receiver is a little off frequency compared to the frequency 
>> stations are spotted at.  I realize that Packet Spots aren't always 
>> posted on frequency, but after viewing thousands of Spots which were 
>> posted by dozens of different sources, on average the actual 
>> frequency the station is received at averages 0.2 khz higher on the 
>> band then where it was spotted.  I'm wondering what options are 
>> available for adjusting the K3 receiver frequency?  Is there a 
>> receiver frequency adjustment within the K3 Utility? Thanks & 
>> 73, Dick- K9OM
>
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