[Elecraft] Wide Spectrum support on Pan Adapter/SDR w/ K3 or KX3

[Bert Rollen]

Thanks Dave, this was the one I recalled in my memory.



 
Bert Rollen, PMP
rollen at comcast.net
865-599-6074


-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of David
Anderson
Sent: Sunday, February 7, 2016 6:44 PM
To: Kevin Stover <kevin.stover at mediacombb.net>
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Wide Spectrum support on Pan Adapter/SDR w/ K3 or
KX3

Kevin, I am doing something like this. I use a KX3 with an external
transverter for 144 MHz. I have a 3dB splitter on the IF out of the
transverter (14MHz) and send half the signal to the KX3 and half to an
SDRPlay RSP running HDSDR. It can display in to 8MHz bandwidth, though I
only need a view of about 500 kHz normally to monitor the weak signal
portion of the band. The HDSDR software can be configured to control the KX3
via CAT by point and click and the KX3 can control the tuning of the HDSDR
whichever you require.  SDRPlay works pretty well for this. 

I have used the SDRPlay directly on 144 MHz rather than on the IF from the
transverter, but it does require a band pass filter ahead of it if you have
strong out of band signals, it doesn't have great RF preselection unlike the
Funcube Pro+ which has a SAW filter on 2m. 

73 from David GM4JJJ

> On 7 Feb 2016, at 22:44, Kevin Stover <kevin.stover at mediacombb.net> wrote:
> 
> Software Radio Labs QS1R will do 2MHz as a standalone SDR covering 10 KHz
to 62.5 MHz.
> 
> 
>> On 2/7/2016 12:33 PM, Bert Rollen wrote:
>> All,
>> 
>>  
>> I have a young friend who wishes to do the following -
>> 
>>  
>> (my summary, not his words)
>> 
>>  
>> -          Panadapter (or SDR) with 4Mhz or more display (not just a few
>> hundred kHz)
>> 
>> -          Capable of 144 MHz - 148 MHz
>> 
>> -          Point & click control a rig (K3, KX-3, Flex-6700, rig w/ 144
MHz
>> transverter etc.)
>> 
>>  
>> Essentially, he wants typical pan-adapter display and control, but 
>> 4000 kHz wide (or more)
>> 
>>  
>>  
>> SO, do I recall some folks here who have run a separate SDR to drive 
>> controls on a K3? (I seem recall some sort of signal splitting 
>> involved outside the main radio)
>> 
>>  
>> Any system / integration advice for this young ham?
>> 
>>  
>> Thanks,
>> 
>>  
>> Bert - K4AR
> 
> 
> --
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
> 
> 
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