[Elecraft] CW Skimmer & K3

[Sam Morgan]

check out the SoftRock Lite II SDR receiver from Tony Parks KB9RG.
You can use his  8.215 MHz SoftRock Lite II for K3 IF application that comes 
with the xtal for the K3'a IF.

Then tap the K3's IF through a buffer amp and bandpass filter from Clifton 
Laboratories.

Run that output into a sound card capable of at least 48khz and you have your 
feed for the CW Skimmer software.

Links to more info:
http://wb5rvz.com/sdr/  WB5RVZ's Documentation site about all Tony's SDR's
http://wb5rvz.com/sdr/sr_lite_ii/   SoftRock Lite II docs
http://fivedash.com/  Tony KB9YIG's site

http://cliftonlaboratories.com/  Clifton Labs site
http://www.cliftonlaboratories.com/z10010_bandpass_filter.htm   Bandpass filter
http://cliftonlaboratories.com/z10000_buffer_amp.htm   Z10000 Buffer Amp

http://www.telepostinc.com/soundcards.html   sound card recommendations

get out your soldering iron Gary, this can be done the old fashioned way for way 
less than $500 bucks.... did I mention it's also fun? <g>

P.S. if you spring for a better sound card (96khz or 192khz) you might get a 
kick out of the NaP3 software. Using LP-Bridge you can even use them all at the 
same time off the one K3 Serial Port.
http://www.telepostinc.com/NaP3.html




On 11/28/2012 12:09 AM, Gary Smith wrote:
> Ah, I'd never heard of sdr-iq but I just looked for info on it and
> for a $500 price tag, I'm not interested. The limitation of +/- 12
> KHz with an additional piece of hardware doesn't thrill me either. To
> just have the audio be worked with has for me no practical function
> so I won't bother. I've heard the K3 described as a SDR radio and
> thought the needed outputs would be readily available. Apples &
> oranges I guess.
>
> That's what I needed to know & thanks.
>
> Now back to DX
>
> Gary
> KA1J
>
>> If you use an sdr-iq with the K3 CWS will decode up to 190 kHz I
>> believe.
>>
>> Greg
>>   On Nov 27, 2012 9:33 PM, "David Gilbert" <xdavid at cis-broadband.com>
>>   wrote:
>>
>>>
>>> CW Skimmer is indeed a pretty cool piece of software, but it doesn't
>>> work like that.  Unless you also have some sort of SDR front end,
>>> all you'll be able to get with CW Skimmer is a display of the audio
>>> passband.  For a display of stations outside that passband you need
>>> an additional piece of hardware that takes the IF out from the K3
>>> and processes it so that it can be handled by your sound card and CW
>>> Skimmer.  Even then, CW Skimmer has a limitation in "IF mode" that
>>> restricts what you see to something like +/- 12 KHz.
>>>
>>> Even if you decide to go with something else, there's a lot of good
>>> information on the LP-Pan website.
>>>
>>> Dave   AB7E
>>>
>>>
>>> On 11/27/2012 10:19 PM, Gary Smith wrote:
>>>
>>>> I'm always curious to try a new software & I thought CW skimmer
>>>> looks interesting. I'm wondering if anyone here is using it with
>>>> their K3 and if so, what did you find was the best way to connect
>>>> it to the K3?
>>>>
>>>> I have both the internal Realtek soundcard built into the PC
>>>> motherboard and I have a E-MU USB soundcard which has XLR & 1/4"
>>>> inputs for left & right. There's optical & S/PDIF inputs as well
>>>> but the K3 doesn't have those outputs.
>>>>
>>>> Thanks,
>>>>
>>>> Gary
>>>> KA1J

-- 

GB & 73
K5OAI
Sam Morgan