[Elecraft] KX3-2M module?

[John Marvin]

Am I reading something wrong? You say that you would need +/- 144 Hz, 
and Wayne is saying that you can get +/- 10 Hz with the extended 
temperature compensation. That seems that it would be good enough.

I'm also seeing all this complaining about stability, and the only 
counter example appears to be +/- 1700 Hz at 1296Mhz for a TS2000, which 
doesn't strike me as all that good either.

Is the real issue that there is no support for an external reference?

John
AC0ZG

On 4/8/2014 6:02 PM, Walter Underwood wrote:
> The specs for frequency stability are not good enough for the JT65 modes (+/- 1 ppm typical over 0-50 C). On 2m, that would be +/- 144Hz. The extended temperature compensation improves that, but it will never be as stable as a K3 with an external reference.
>
> Did you expect it to perform much, much better than the specs?
>
> The FT-817 specs are: ± 4 ppm from 1 min. to 60 min. after power on. 25° C: 1 ppm/hour
>
> wunder
> K6WRU
>
> On Apr 8, 2014, at 2:58 PM, "Dave" <dave at g0dja.co.uk> wrote:
>
>> The more I see, the more I realise that the promised 2M unit is going to be a very poor option for people who use VHF and UHF seriously.
>>
>> I have re awakened my use of HF, but I did buy the Elecraft KX3 with the promise of a decent 2M option.
>>
>> Where do I apply to return my KX3 for a full refund ?
>>
>> Dave (G0DJA)
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