[Elecraft] K144XV spurious in receiver

Guy Olinger K2AV olinger at bellsouth.net
Sat Mar 20 00:38:49 EDT 2010


You can use the procedure for removing spurs that already exists.

The S meter is calibrated to the front end of the HF receiver.  The
system gain of the K144XV (including its preamp) will be added to the
calibration of the HF receiver.  20 over would seem to be
approximately right.  -70 is 3 db over S9.

73, Guy.

On Fri, Mar 19, 2010 at 8:10 PM, Brett Howard <brett at livecomputers.com> wrote:
> Yea I'm hearing quite a few spurs from 144.0 to 144.004 and then of
> course it repeats from 146 to 146.004...
>
> ~Brett (KC7OTG)
>
> On Fri, Mar 19, 2010 at 12:05 PM, Robert P. Ward <wardbnj at comcast.net> wrote:
>> Hi group
>>
>>
>>
>>                I've just installed a K144XV in my K3 and using 2.77
>> firmware.
>>
>> I have found some spurious response at the bottom end of the band (144.0 to
>> 144.010).
>>
>> Wondering if anyone else has noticed this?
>>
>>                Also have found the "S" meter is very inaccurate, reads 20
>> over S9 with -70 dBm input signal.
>>
>> I've found the K144XV to be quite sensitive as measured with a HP 8640B
>> signal generator......
>>
>>
>>
>>                                Bob   NQ3N
>>
>>
>>
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