[Elecraft] FMT and KX3

[Jim Wilkie]

KEN, I always blame that on the cat.
Jim WY4R


On 4/11/2015 9:05 PM, wocz at i29.net wrote:
> Hi to the gang
>
> I reread this several times before I sent it but the 50.000.000 was an error as I meant 15.000.000. The same goes for 49.999.999 that should be 14.999.999 and the 50.000.001that should have been 15.000.001. Sorry for the confusion. I should keep my hands off the keyboard but I like to share what worked so well for me.
>
> Let me know if I did anything else wrong.
>
> 73
>
> Ken W0CZ   w0cz at i29 dot net
>
> Sent from my iPad
>
>> On Apr 11, 2015, at 7:36 PM, Fred Jensen <k6dgw at foothill.net> wrote:
>>
>> Not understanding the 50.000.000 and 15 MHz WWV.  I'd like to do this in the next FMT.
>>
>> 73,
>>
>> Fred K6DGW
>> - Northern California Contest Club
>> - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
>> - www.cqp.org
>>
>>> On 4/11/2015 5:30 PM, Kenneth Christiansen wrote:
>>> Hi Mike
>>>
>>> I will give you some hints to help you use the K3 and get closer
>>> results. Let the K3 get well warmed up. Tune in WWV at 15 MHZ in the
>>> CW mode with narrow 50hz filter. Tune slightly high and tap SPOT. The
>>> K3 should stop about 1 hz high in frequency. Tune slightly low and
>>> tap SPOT. The K3 should stop about 1 hz low in frequency. Set the K3
>>> to the 1 hz step in between the previous two steps. If the K3 does
>>> not read 50.000.000 than go to the CONFIG menu and REF CAL. Adjust
>>> the frequency a bit and go back and do the tests. You should be able
>>> to get the high SPOT to stop at 50.000.001 and the low SPOT to stop
>>> at 49.999.999. Than the proper point should be set to 50.000.000. The
>>> unknown frequency should be measured by high tap SPOT and note the
>>> frequency than low tap SPOT and note the frequency. The unknown
>>> frequency will be close to the frequency step in between those two
>>> spots. This should easily get you within 2 hz of the unknown
>>> frequency. You can use the SPECTRUM LAB program to get even closer.
>>> The only reason the KX3 can get slightly better is that it only has
>>> the VFO and no IF frequency while the K3 has both the VFO and IF.
>>> That means more math takes place in the transceiver but there is also
>>> error in propagation so the end result is the K3 and the KX3 should
>>> be close. If you do not use the SPECTRUM LAB program then the above
>>> procedure should be about as good as you possibly get using your
>>> equipment.
>>
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