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CW Skimmer & K3

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Gary Smith-2

CW Skimmer & K3

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
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David Gilbert

Re: CW Skimmer & K3

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
> ______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
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Greg - AB7R

Re: CW Skimmer & K3

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" <[hidden email]> 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
>> ______________________________**______________________________**__
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>> Post: mailto:[hidden email].**net <[hidden email]>
>>
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>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
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Gary Smith-2

Re: CW Skimmer & K3

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" <[hidden email]>
> 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
> >> ______________________________**______________________________**__
> >> Elecraft mailing list Home:
> >> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.q
> >> th.net/mailman/listinfo/elecraft> Help:
> >> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm
> >> > Post: mailto:[hidden email].**net
> >> <[hidden email]>
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >>
> >>
> > ______________________________**______________________________**__
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> > h.net/mailman/listinfo/elecraft> Help:
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David Gilbert

Re: CW Skimmer & K3

In reply to this post by Greg - AB7R

Yes ... but then it isn't operating in IF Mode. The difference is
explained in the CW Skimmer documentation.

Plus, an SDR-IQ costs in the vicinity of $500 so it isn't at all like
simply connecting the K3 to a soundcard.

Dave AB7E

On 11/27/2012 10:38 PM, Greg wrote:

>
> 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" <[hidden email]
> <mailto:[hidden email]>> 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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
> <mailto:[hidden email]>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list:
> http://www.qsl.net/donate.html
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
> <mailto:[hidden email]>
>
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> Please help support this email list: http://www.qsl.net/donate.html
>

k5oai

Re: CW Skimmer & K3

In reply to this post by Gary Smith-2

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" <[hidden email]>
>> 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
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Greg - AB7R

Re: CW Skimmer & K3

In reply to this post by Greg - AB7R

I must be crazy but I had an SDR-IQ connected to the RX OUT and used
the rig control in the software connected to a VCP with LP Bridge and
it worked fine.

On 11/28/12, KQ8M <[hidden email]> wrote:

> Unfortunately no, it only decodes +/- 12kHz. In the setup you use SDR-IF not
> SDR-IQ so you can control the radio. The software is
> limited to +/- 12. The author cannot/will not expand that.
>
> 73,
> Tim Herrick, KQ8M
> Charter Member North Coast Contesters
> [hidden email]
>
> AR-Cluster V6 kq8m.no-ip.org
> User Ports: 23, 7373 with local skimmer, 7374 without local skimmer
> Server Ports: V6 3607, V4 Active 3605, V4 Passive 3606
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Greg
> Sent: Wednesday, November 28, 2012 12:38 AM
> To: David Gilbert
> Cc: [hidden email]
> Subject: Re: [Elecraft] CW Skimmer & K3
>
> 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" <[hidden email]> 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
>>> ______________________________**______________________________**__
>>> Elecraft mailing list
>>> Home:
>>> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>>> Help:
>>> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>>> Post: mailto:[hidden email].**net <[hidden email]>
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>>>
>> ______________________________**______________________________**__
>> Elecraft mailing list
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>> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>> Help:
>> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>> Post: mailto:[hidden email].**net <[hidden email]>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
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>

N8LP

Re: CW Skimmer & K3

In reply to this post by Gary Smith-2

The outputs you are looking for exist on the KX3. I don't think they exist on any other rig.

Larry N8LP

Gary Smith-2 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" <[hidden email]>
> 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
> >> ______________________________**______________________________**__
> >> Elecraft mailing list Home:
> >> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.q
> >> th.net/mailman/listinfo/elecraft> Help:
> >> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm
> >> > Post: mailto:[hidden email].**net
> >> <[hidden email]>
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >>
> >>
> > ______________________________**______________________________**__
> > Elecraft mailing list Home:
> > http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qt
> > h.net/mailman/listinfo/elecraft> Help:
> > http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
> > Post: mailto:[hidden email].**net <[hidden email]>
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
> ______________________________________________________________
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
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Greg - AB7R

Re: CW Skimmer & K3

In reply to this post by Greg - AB7R

Exactly....I left out the part about the splitter. :)

On 11/28/12, Pete Smith N4ZR <[hidden email]> wrote:

> Yep, you can do that. I have a magic-tee splitter that goes between RX
> OUT and RX IN, so that I can switch my QS1R in and out.
>
> 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 11/28/2012 10:19 AM, Greg wrote:
>> I must be crazy but I had an SDR-IQ connected to the RX OUT and used
>> the rig control in the software connected to a VCP with LP Bridge and
>> it worked fine.
>>
>>
>>
>> On 11/28/12, KQ8M <[hidden email]> wrote:
>>> Unfortunately no, it only decodes +/- 12kHz. In the setup you use SDR-IF
>>> not
>>> SDR-IQ so you can control the radio. The software is
>>> limited to +/- 12. The author cannot/will not expand that.
>>>
>>> 73,
>>> Tim Herrick, KQ8M
>>> Charter Member North Coast Contesters
>>> [hidden email]
>>>
>>> AR-Cluster V6 kq8m.no-ip.org
>>> User Ports: 23, 7373 with local skimmer, 7374 without local skimmer
>>> Server Ports: V6 3607, V4 Active 3605, V4 Passive 3606
>>>
>>> -----Original Message-----
>>> From: [hidden email]
>>> [mailto:[hidden email]] On Behalf Of Greg
>>> Sent: Wednesday, November 28, 2012 12:38 AM
>>> To: David Gilbert
>>> Cc: [hidden email]
>>> Subject: Re: [Elecraft] CW Skimmer & K3
>>>
>>> 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" <[hidden email]>
>>> 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
>>>>> ______________________________**______________________________**__
>>>>> Elecraft mailing list
>>>>> Home:
>>>>> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>>>>> Help:
>>>>> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>>>>> Post: mailto:[hidden email].**net <[hidden email]>
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>>>
>>>> ______________________________**______________________________**__
>>>> Elecraft mailing list
>>>> Home:
>>>> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>>>> Help:
>>>> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>>>> Post: mailto:[hidden email].**net <[hidden email]>
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>

Christian AK4VV

Re: CW Skimmer & K3

In reply to this post by Gary Smith-2

Yes. It works. Need to connect I/Q out to your E-MU and probably need
isolation transformers to keep the noise out. The cable kit is an easy way
to do to get there. But you probably still need to fiddle with getting
audio isolation inline. At least I did.

73,
Christian
AK4VV
On Nov 28, 2012 12:19 AM, "Gary Smith" <[hidden email]> wrote:

Greg - AB7R

Re: CW Skimmer & K3

In reply to this post by Greg - AB7R

Another option is to use something like an active rx antenna on the
SDRIQ with a relay to disconnect during transmit. I did this with the
QS1R for awhile and it was a good combination.

On 11/28/12, Greg <[hidden email]> wrote:

> Yup.....Works fine too.
>
> On 11/28/12, KQ8M <[hidden email]> wrote:
>> Your just sharing the RX antenna now not actually using the K3's IF.
>>
>> 73,
>> Tim Herrick, KQ8M
>> Charter Member North Coast Contesters
>> [hidden email]
>>
>> AR-Cluster V6 kq8m.no-ip.org
>> User Ports: 23, 7373 with local skimmer, 7374 without local skimmer
>> Server Ports: V6 3607, V4 Active 3605, V4 Passive 3606
>>
>>
>> -----Original Message-----
>> From: [hidden email]
>> [mailto:[hidden email]] On Behalf Of Greg
>> Sent: Wednesday, November 28, 2012 11:33 AM
>> To: Pete Smith N4ZR; Elecraft Reflector
>> Subject: Re: [Elecraft] CW Skimmer & K3
>>
>> Exactly....I left out the part about the splitter. :)
>>
>> On 11/28/12, Pete Smith N4ZR <[hidden email]> wrote:
>>> Yep, you can do that. I have a magic-tee splitter that goes between RX
>>> OUT and RX IN, so that I can switch my QS1R in and out.
>>>
>>> 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 11/28/2012 10:19 AM, Greg wrote:
>>>> I must be crazy but I had an SDR-IQ connected to the RX OUT and used
>>>> the rig control in the software connected to a VCP with LP Bridge and
>>>> it worked fine.
>>>>
>>>>
>>>>
>>>> On 11/28/12, KQ8M <[hidden email]> wrote:
>>>>> Unfortunately no, it only decodes +/- 12kHz. In the setup you use
>>>>> SDR-IF
>>>>> not
>>>>> SDR-IQ so you can control the radio. The software is
>>>>> limited to +/- 12. The author cannot/will not expand that.
>>>>>
>>>>> 73,
>>>>> Tim Herrick, KQ8M
>>>>> Charter Member North Coast Contesters
>>>>> [hidden email]
>>>>>
>>>>> AR-Cluster V6 kq8m.no-ip.org
>>>>> User Ports: 23, 7373 with local skimmer, 7374 without local skimmer
>>>>> Server Ports: V6 3607, V4 Active 3605, V4 Passive 3606
>>>>>
>>>>> -----Original Message-----
>>>>> From: [hidden email]
>>>>> [mailto:[hidden email]] On Behalf Of Greg
>>>>> Sent: Wednesday, November 28, 2012 12:38 AM
>>>>> To: David Gilbert
>>>>> Cc: [hidden email]
>>>>> Subject: Re: [Elecraft] CW Skimmer & K3
>>>>>
>>>>> 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" <[hidden email]>
>>>>> 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
>>>>>>> ______________________________**______________________________**__
>>>>>>> Elecraft mailing list
>>>>>>> Home:
>>>>>>> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>>>>>>> Help:
>>>>>>> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>>>>>>> Post: mailto:[hidden email].**net <[hidden email]>
>>>>>>>
>>>>>>> This list hosted by: http://www.qsl.net
>>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>>>
>>>>>>>
>>>>>> ______________________________**______________________________**__
>>>>>> Elecraft mailing list
>>>>>> Home:
>>>>>> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>>>>>> Help:
>>>>>> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>>>>>> Post: mailto:[hidden email].**net <[hidden email]>
>>>>>>
>>>>>> This list hosted by: http://www.qsl.net
>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>>
>>>>> ______________________________________________________________
>>>>> Elecraft mailing list
>>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>> Post: mailto:[hidden email]
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>>>
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:[hidden email]
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>>
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>

Gary Smith-2

Re: CW Skimmer & K3

In reply to this post by N8LP

This is obviously something that should be made available as an
add-on/upgrade to the K3.

Gary
KA1J

> The outputs you are looking for exist on the KX3. I don't think they
> exist on any other rig.
>
> Larry N8LP
>
>
>
>
> Gary Smith-2 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@
>
> > >
> >> 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
> >> >> ______________________________**______________________________**
> >> >> __ Elecraft mailing list Home:
> >> >> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mai
> >> >> lman.q
> > > >> th.net/mailman/listinfo/elecraft> Help:
> >> >> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmf
> >> >> aq.htm
> > > >> > Post: mailto:
>
> > Elecraft@
>
> > .**net
> >> >> <
>
> > Elecraft@.qth
>
> > >
> >> >>
> >> >> This list hosted by: http://www.qsl.net
> >> >> Please help support this email list:
> >> >> http://www.qsl.net/donate.html
> >> >>
> >> >>
> >> > ______________________________**______________________________**_
> >> > _ Elecraft mailing list Home:
> >> > http://mailman.qth.net/**mailman/listinfo/elecraft<http://mail
> >> > man.qt
> > > > h.net/mailman/listinfo/elecraft> Help:
> >> >
> >> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.
> >> htm>
> >> > Post: mailto:
>
> > Elecraft@
>
> > .**net <
>
> > Elecraft@.qth
>
> > >
> >> >
> >> > This list hosted by: http://www.qsl.net
> >> > Please help support this email list:
> >> > http://www.qsl.net/donate.html
> >> >
> >> ______________________________________________________________
> >> Elecraft mailing list Home:
> >> http://mailman.qth.net/mailman/listinfo/elecraft Help:
> >> http://mailman.qth.net/mmfaq.htm Post: mailto:
>
> > Elecraft@.qth
>
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >>
> >
> >
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:
>
> > Elecraft@.qth
>
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>
>
>
>
>
> --
> View this message in context:
> http://elecraft.365791.n2.nabble.com/CW-Skimmer-K3-tp7566354p7566375.h
> tml Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list Home:
> http://mailman.qth.net/mailman/listinfo/elecraft Help:
> http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

David Gilbert

Re: CW Skimmer & K3

In reply to this post by Greg - AB7R

KA1J asked if he could use his K3 and his computer sound card to run CW
SKimmer, and you're telling him how he can spend between $500 (SDR-IQ)
and $1000 (QS1-R) for a solution that doesn't even actually use the K3.
That's like me asking if I can add a tailgate lift to my pickup and you
telling me to buy a forklift.

Dave AB7E

On 11/28/2012 9:40 AM, Greg wrote:
> Another option is to use something like an active rx antenna on the
> SDRIQ with a relay to disconnect during transmit. I did this with the
> QS1R for awhile and it was a good combination.
>
>
> On 11/28/12, Greg <[hidden email]> wrote:
>> Yup.....Works fine too.

>>
>> On 11/28/12, KQ8M <[hidden email]> wrote:
>>> Your just sharing the RX antenna now not actually using the K3's IF.
>>>
>>> 73,
>>> Tim Herrick, KQ8M
>>> Charter Member North Coast Contesters
>>> [hidden email]
>>>
>>>
>>>
>>> On 11/28/2012 10:19 AM, Greg wrote:
>>>>> I must be crazy but I had an SDR-IQ connected to the RX OUT and used
>>>>> the rig control in the software connected to a VCP with LP Bridge and
>>>>> it worked fine.
>>>>>
>>>>>
>>>>>
>>>>> On 11/28/12, KQ8M <[hidden email]> wrote:
>>>>>> Unfortunately no, it only decodes +/- 12kHz. In the setup you use
>>>>>> SDR-IF
>>>>>> not
>>>>>> SDR-IQ so you can control the radio. The software is
>>>>>> limited to +/- 12. The author cannot/will not expand that.
>>>>>>
>>>>>> 73,
>>>>>> Tim Herrick, KQ8M
>>>>>> Charter Member North Coast Contesters
>>>>>> [hidden email]
>>>>>>
>>>>>>
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: [hidden email]
>>>>>> [mailto:[hidden email]] On Behalf Of Greg
>>>>>> Sent: Wednesday, November 28, 2012 12:38 AM
>>>>>> To: David Gilbert
>>>>>> Cc: [hidden email]
>>>>>> Subject: Re: [Elecraft] CW Skimmer & K3
>>>>>>
>>>>>> If you use an sdr-iq with the K3 CWS will decode up to 190 kHz I
>>>>>> believe.
>>>>>>
>>>>>> Greg
>>>>>>

Henk PA5KT

Re: CW Skimmer & K3

In reply to this post by Gary Smith-2

Gary,

You need a KXV3A to have IF output. You them can downconvert the 8MHz IF
signal to audiofrequency with a box like the LP-PAN downconverter.
See http://telepostinc.com/LP-PAN.html

With the EMU USB 0202 soundcard you will get a nice bandscope for the
K3, but it also works with Skimmer.

You might ask on the reflector if someone has a used LP-PAN for sale as
a lot of people replaced their LP-PAN with the P3.

I am a happy user of the LP-PAN converter.

It is recommended to do the IF mod on the K3 if your K3 is older them
September 2009.
(http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf).

73 Henk PA5KT

Op 28-11-2012 6:19, Gary Smith schreef:

David Gilbert

Re: CW Skimmer & K3

In reply to this post by k5oai

That's still limited to +/- 12 KHz for use with CW Skimmer.

By the way, I thought I read somewhere recently that the Softrock Lite
for use with the K3 IF was no longer offered by Tony although I could be
wrong, about that. If anyone knows for certain, please correct me.

Dave AB7E

On 11/28/2012 4:31 AM, Sam Morgan wrote:

> 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.
>
> <snip>
>
>
>
>
> 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

Iain MacDonnell - N6ML-2

Re: CW Skimmer & K3

In reply to this post by Gary Smith-2

TelePost Inc (i.e. N8LP) provides such an add-on. It's called LP-Pan.

If you're suggesting that Elecraft should provide an internal module
option for this... I suppose that might be technically feasible, but
I'm not sure it'd really be much of a value-add, since LP-Pan works
well.

BTW, from what I understand, the KX3 architecture is quite different
from the K3, and it actually uses I/Q internally, so it's "easy" to
make the I/Q signals available externally, whereas the K3 requires a
converter (like LP-Pan) that takes the IF as its input.

73,

~iain / N6ML

On Wed, Nov 28, 2012 at 9:04 AM, Gary Smith <[hidden email]> wrote:

> This is obviously something that should be made available as an
> add-on/upgrade to the K3.
>
> Gary
> KA1J
>
>> The outputs you are looking for exist on the KX3. I don't think they
>> exist on any other rig.
>>
>> Larry N8LP
>>
>>
>>
>>
>> Gary Smith-2 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@
>>
>> > >
>> >> 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
>> >> >> ______________________________**______________________________**
>> >> >> __ Elecraft mailing list Home:
>> >> >> http://mailman.qth.net/**mailman/listinfo/elecraft<http://mai
>> >> >> lman.q
>> > > >> th.net/mailman/listinfo/elecraft> Help:
>> >> >> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmf
>> >> >> aq.htm
>> > > >> > Post: mailto:
>>
>> > Elecraft@
>>
>> > .**net
>> >> >> <
>>
>> > Elecraft@.qth
>>
>> > >
>> >> >>
>> >> >> This list hosted by: http://www.qsl.net
>> >> >> Please help support this email list:
>> >> >> http://www.qsl.net/donate.html
>> >> >>
>> >> >>
>> >> > ______________________________**______________________________**_
>> >> > _ Elecraft mailing list Home:
>> >> > http://mailman.qth.net/**mailman/listinfo/elecraft<http://mail
>> >> > man.qt
>> > > > h.net/mailman/listinfo/elecraft> Help:
>> >> >
>> >> http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.
>> >> htm>
>> >> > Post: mailto:
>>
>> > Elecraft@
>>
>> > .**net <
>>
>> > Elecraft@.qth
>>
>> > >
>> >> >
>> >> > This list hosted by: http://www.qsl.net
>> >> > Please help support this email list:
>> >> > http://www.qsl.net/donate.html
>> >> >
>> >> ______________________________________________________________
>> >> Elecraft mailing list Home:
>> >> http://mailman.qth.net/mailman/listinfo/elecraft Help:
>> >> http://mailman.qth.net/mmfaq.htm Post: mailto:
>>
>> > Elecraft@.qth
>>
>> >>
>> >> This list hosted by: http://www.qsl.net
>> >> Please help support this email list: http://www.qsl.net/donate.html
>> >>
>> >
>> >
>> >
>> > ______________________________________________________________
>> > Elecraft mailing list
>> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> > Help: http://mailman.qth.net/mmfaq.htm
>> > Post: mailto:
>>
>> > Elecraft@.qth
>>
>> >
>> > This list hosted by: http://www.qsl.net
>> > Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://elecraft.365791.n2.nabble.com/CW-Skimmer-K3-tp7566354p7566375.h
>> tml Sent from the Elecraft mailing list archive at Nabble.com.
>> ______________________________________________________________
>> Elecraft mailing list Home:
>> http://mailman.qth.net/mailman/listinfo/elecraft Help:
>> http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>
>
> ______________________________________________________________
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Don Wilhelm-4

Re: CW Skimmer & K3

In reply to this post by Gary Smith-2

Gary,

The K3 IF output is what can be used to run CW Skimmer or other
applications. You can use LP-
Pan, or a Softrock receiver (with a buffer amplifier) or you can use an
SDR receiver that provides a computer connection such as SDR-IQ.

The K3 filtering will not allow wideband I and Q signals to be available
as output signals - yes, those signals do exist internally to the K3,
but not in analog form - unlike the KX3 where the analog I and Q signals
are available. The two receivers have different architecture even
though they are both in the class of SDR receivers.

73,
Don W3FPR

On 11/28/2012 12:04 PM, Gary Smith wrote:

k5oai

Re: CW Skimmer & K3

In reply to this post by David Gilbert

here is the direct link to Tony's site called five dash inc
where he *IS_STILL* selling the SoftRock needed for the K3 if tap:
http://tinyurl.com/br28abo

<quote>
For special IF applications: Crystals for some special IF frequency applications
are available. An IF Special Lite II receiver has a crystal whose center
frequency is typically 10kHz to 15kHz above or below the target IF frequency.
The Lite II can then be used to monitor the signals in the IF spectrum of the
target receiver. This provides a way of quickly seeing what signals are
available near to the frequency where the target receiver is tuned. If an
additional IF center frequency option is chosen below, the crystal and any
additional parts necessary for the Lite II to be built for the chosen frequency
will be included in addition to the standard Lite II Combined Receiver kit. Band
specific component values for IF frequencies may be found here.
</quote>

also reference links:
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

On 11/28/2012 11:54 AM, David Gilbert wrote:
>
> That's still limited to ± 12 KHz for use with CW Skimmer.
>
> By the way, I thought I read somewhere recently that the Softrock Lite for use
> with the K3 IF was no longer offered by Tony although I could be wrong, about
> that. If anyone knows for certain, please correct me.
>
> Dave AB7E

--

GB & 73
K5OAI
Sam Morgan
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Greg - AB7R

Re: CW Skimmer & K3

In reply to this post by David Gilbert

I was simply mentioning options....and a used SDR-IQ can be found for
$300-$400 and you don't need the soundcard to get 192 kHz decoding and
works fine with the K3 RX IN/OUT loop. If you don't like my comment
to him simply turn the page Dave.

73
Greg

On 11/28/12, David Gilbert <[hidden email]> wrote:

>
> KA1J asked if he could use his K3 and his computer sound card to run CW
> SKimmer, and you're telling him how he can spend between $500 (SDR-IQ)
> and $1000 (QS1-R) for a solution that doesn't even actually use the K3.
> That's like me asking if I can add a tailgate lift to my pickup and you
> telling me to buy a forklift.
>
> Dave AB7E
>
>
> On 11/28/2012 9:40 AM, Greg wrote:
>> Another option is to use something like an active rx antenna on the
>> SDRIQ with a relay to disconnect during transmit. I did this with the
>> QS1R for awhile and it was a good combination.
>>
>>
>> On 11/28/12, Greg <[hidden email]> wrote:
>>> Yup.....Works fine too.
>
>>>
>>> On 11/28/12, KQ8M <[hidden email]> wrote:
>>>> Your just sharing the RX antenna now not actually using the K3's IF.
>>>>
>>>> 73,
>>>> Tim Herrick, KQ8M
>>>> Charter Member North Coast Contesters
>>>> [hidden email]
>>>>
>>>>
>>>>
>>>> On 11/28/2012 10:19 AM, Greg wrote:
>>>>>> I must be crazy but I had an SDR-IQ connected to the RX OUT and used
>>>>>> the rig control in the software connected to a VCP with LP Bridge and
>>>>>> it worked fine.
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 11/28/12, KQ8M <[hidden email]> wrote:
>>>>>>> Unfortunately no, it only decodes +/- 12kHz. In the setup you use
>>>>>>> SDR-IF
>>>>>>> not
>>>>>>> SDR-IQ so you can control the radio. The software is
>>>>>>> limited to +/- 12. The author cannot/will not expand that.
>>>>>>>
>>>>>>> 73,
>>>>>>> Tim Herrick, KQ8M
>>>>>>> Charter Member North Coast Contesters
>>>>>>> [hidden email]
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: [hidden email]
>>>>>>> [mailto:[hidden email]] On Behalf Of Greg
>>>>>>> Sent: Wednesday, November 28, 2012 12:38 AM
>>>>>>> To: David Gilbert
>>>>>>> Cc: [hidden email]
>>>>>>> Subject: Re: [Elecraft] CW Skimmer & K3
>>>>>>>
>>>>>>> If you use an sdr-iq with the K3 CWS will decode up to 190 kHz I
>>>>>>> believe.
>>>>>>>
>>>>>>> Greg
>>>>>>>
>
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k5oai

Re: CW Skimmer & K3

In reply to this post by k5oai

typo correction
should say Tony Parks *KB9YIG* not Tony Parks KB9RG.

On 11/28/2012 5:31 AM, Sam Morgan wrote:

> 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
>