[Elecraft] SDR-IQ and K2

[Larry Phipps]

Steve, you might want to look at the combo of LPB2 and NaP3. LPB2 allows 
sharing of the rig port with an SDR and up to 5 apps, like LP-Bridge 
does with K3. NaP3 is the latest iteration of Flex's open source 
PowerSDR, has some really neat features. A version of NaP3 is in 
pre-release which fully supports K2, with extensive support for offsets 
for all modes.

Larry N8LP



On 11/10/2011 12:00 PM, elecraft-request at mailman.qth.net wrote:
> Message: 4
> Date: Thu, 10 Nov 2011 16:06:11 +0000
> From: Steve Bunting<stephen.bunting at virgin.net>
> Subject: [Elecraft] SDR-IQ and K2
> To:elecraft at mailman.qth.net
> Message-ID:<4EBBF673.3090404 at virgin.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi Folks,
>
> I have a Z10000 buffer board in my K2 and have used it to drive a
> softrock as a panadapter for some time. It works just fine, but I have
> left this uncalibrated and my PC doesn't really have enough horsepower
> to run my external soundcard.
>
> I have been trying to reduce PC overhead and introduce "click to tune"
> by using an SDR-IQ instead. The system displays OK, but I cannot get
> Simon's SDR-Radio software to calibrate the panadapter to zero beat the
> radio RX. I know about the cal functions, but can't dial in enough
> offset for all modes. I suspect I am doing something fundamentally
> incorrect - can anyone help?
>
> 1) I am using telling the SDR that the IF is 4.915MHz. I assume that is
> correct? I see that the soft rock radios are at 4.898MHz and I am not
> sure why.
>
> 2) I assume the K2 offsets the frequency when modes are changed? If so,
> by how much on each mode? Does any mode have no offset at all? This
> would be the one I need to perform my initial calibration with.
>
> If any one has a K2 working with an SDR-IQ (either with SDR-radio or any
> other software that provides click to tune) I'd really like to hear from
> you - i have plenty to learn!
>
> Thanks es 73
> Steve
> M0BPQ