LP-Pan (except for very early models) offsets the IF by 6kHz, to move
any center-spikes introduced by audio interfaces out of the way. The
same offset applies to all bands, except on 6m, you need to swap I/Q
(there's an option in CW Skimmer for that) and make the offset
positive instead of negative, due to the IF being reversed on the K3
above 30MHz (or so). Not sure why you would be seeing different
behaviour on the lower bands.....
73,
~iain / N6ML
On Wed, Feb 4, 2015 at 2:37 PM, Pete Smith N4ZR <n...@contesting.com> wrote:
> Update - I don't understand how or why, but if I set CW Skimmer's "Audio IF"
> to -6150 Hz, that brings the K3 and CW Skimmer frequency readouts into
> agreement. There is an explanation of audio IF in the Skimmer help file,
> but I can't get my brain around it.
>
> 73, Pete N4ZR
> Check out the Reverse Beacon Network at
> http://reversebeacon.net,
> blog at reversebeacon.blogspot.com.
> For spots, please go to your favorite
> ARC V6 or VE7CC DX cluster node.
>
> On 2/4/2015 4:37 PM, Pete Smith N4ZR wrote:
>>
>> I've been experimenting with using the K3 with CW Skimmer to work K1N. I'm
>> feeding LP-Pan 2 from the K3's IF, and running CW Skimmer if Softrock IF
>> mode. I'm using Omnirig to read the K3s frequency and control it. This
>> works super well at least down through 15 meters - I can see the first 10
>> KHz of the pileupabove K1N's transmit frequency, and see exactly where he
>> last worked someone.
>>
>>
>> However... I just tried the same technique on 30M, where K1N is currently
>> at 10113.1. I can't see him or his pileup at and above that frequency, but
>> if I tune the radio down to 10107.9, ghe appears on the waterfall with the
>> expected humongous pileup over the next few KHz above. So now I'm
>> wondering, is the relationship between IF frequency and dial frequency
>> perhaps different on the lower bands? Has anyone tried this same thing and
>> been able to make it work on 40 and below?
>>
>
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