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Need local help

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Richard Gillingham

Re: Need local help

I got the Numark STEREO iO Analog-To-Digital DJ Interface instead of the Signal Link… Half the price and works well.

73

Gil, W1RG

From: Walter Underwood
Sent: ‎Tuesday‎, ‎June‎ ‎9‎, ‎2015 ‎5‎:‎20‎ ‎PM
To: [hidden email]

Please read this well-researched document. It has already been recommended in this string.

http://audiosystemsgroup.com/USB_Interfaces.pdf

wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)

On Jun 9, 2015, at 2:16 PM, David Ahrendts <[hidden email]> wrote:

> Gentlemen, suggest some alternatives to the SignalLink USB for digital. Would like to research.
>
> David A., KC0XT
>
>> On Jun 9, 2015, at 2:10 PM, Joe Subich, W4TV <[hidden email]> wrote:
>>
>>
>>> I think there is one point that is overlooked in a lot of these
>>> discussions. It really doesn't take much of a sound card to do
>>> digital signal processing on 3 KHz or less audio streram.
>>
>> There are a significant number of reports concerning the issues with
>> Signalink on-line if one bothers to look. In general they relate to
>> improper filtering of the USB +5V power, lack of a regulator for the
>> V/2 reference to the sound codec (analog to digital converter), lack
>> of proper bypassing of noise from the various chips, requirement that
>> the digital to analog converter be run at too high a level in order
>> for the "VOX" to trigger reliably, etc.
>>
>> In general, this means Signalink loses 15 dB or more of signal to
>> noise ratio (which is a big deal with modes like JT65 and JT9 on HF)
>> on the receive side and is much more "dirty" (often with multiple
>> audio signals) on transmit.
>>
>> You're correct that it does not take much of a sound card to decode
>> some signals. However, the Signalink "sound card" contains most of
>> the same components as the generic USB sound products that perform
>> much better - yet Signalink costs two to three times as much.
>>
>> 73,
>>
>> ... Joe, W4TV
>>
>>
>> On 2015-06-09 3:59 PM, Barry LaZar wrote:
>>> Joe,
>>> You bring an interesting point of view. I've been using a SignaLink
>>> USB for at least 3-4 years. I haven't had an issue with it except not
>>> enough time to play. And, I can't blame the manufacturer for that.
>>>
>>> I think there is one point that is overlooked in a lot of these
>>> discussions. It really doesn't take much of a sound card to do digital
>>> signal processing on 3 KHz or less audio streram. However, I would never
>>> use a card in my laptop or my I/F for some of the heavier lifting here
>>> in my shack where I need 96KHz sample rates or better with 24 bit
>>> digitizing. But for just hook it up, set the levels and go, an interface
>>> with a built in sound card is not a bad way to go. In many cases, it is
>>> just easier to do and it allows for more flexibility.
>>>
>>> 73,
>>> Barry
>>> K3NDM
>>>
>>> On 6/9/2015 3:11 PM, Joe Subich, W4TV wrote:
>>>>
>>>> On 2015-06-09 12:02 PM, Bob N3MNT wrote:
>>>>> OP said computer did not have an audio input.
>>>>
>>>> He's still better off with an external USB sound card of reasonable
>>>> quality and a pair of audio cables than using the Tigertronix product
>>>> of dubious quality and well documented poor design. A simple USB sound
>>>> card of reasonable quality will cost 1/3 to 1/2 as much as the inferior
>>>> "amateur" product.
>>>>
>>>> 73,
>>>>
>>>> ... Joe, W4TV
>>>> ______________________________________________________________
>>>> Elecraft mailing list
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>>>
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>> ______________________________________________________________
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>>
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>
>
>
>
> David Ahrendts [hidden email]
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
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>
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Raymond Sills

Re: Need local help

In reply to this post by David Ahrendts

Well, there is the iMic for one. $30. A good semi-pro audio
interface would be priced at at least $150. The Focusrite Scarlett
2i2, would be a good example. Then, if you want to "go-pro"... there
are interfaces like the Universal Audio Apollo Twin DUO, for $900..
(which is cheap, compared to the RME Fireface 802 USB / Firewire Audio
Interface, at $1700.

There are more expensive interfaces and better interfaces, but most of
them do not use USB for connecting to the computer.

73 de Ray
K2ULR
KX3 #211

On Jun 9, 2015, at 5:16 PM, David Ahrendts wrote:

> Gentlemen, suggest some alternatives to the SignalLink USB for
> digital. Would like to research.
>
> David A., KC0XT

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Joe Subich, W4TV-4

Re: Need local help

In reply to this post by David Ahrendts

In addition to the sound cards recommended in the K9YC document,
these have been reported to be solid performing cards:
http://www.newegg.com/Product/Product.aspx?Item=N82E16829128010 ($36)
http://www.newegg.com/Product/Product.aspx?Item=N82E16829126101 ($18)
http://www.newegg.com/Product/Product.aspx?Item=N82E16829126101 ($40)

That list is not exhaustive - it does not include many of the <$100
cards being recommended for SDR use or many of the <$10 "dongles" that
work exceedingly well for simple audio I/O purposes.

73,

... Joe, W4TV

On 2015-06-09 5:16 PM, David Ahrendts wrote:

Ross Primrose

Re: Need local help

Just make sure you get one that can handle line level inputs, or you'll
have to build an attenuator....

73, Ross N4RP

On 6/9/2015 5:45 PM, Joe Subich, W4TV wrote:

>
> In addition to the sound cards recommended in the K9YC document,
> these have been reported to be solid performing cards:
> http://www.newegg.com/Product/Product.aspx?Item=N82E16829128010 ($36)
> http://www.newegg.com/Product/Product.aspx?Item=N82E16829126101 ($18)
> http://www.newegg.com/Product/Product.aspx?Item=N82E16829126101 ($40)
>
> That list is not exhaustive - it does not include many of the <$100
> cards being recommended for SDR use or many of the <$10 "dongles" that
> work exceedingly well for simple audio I/O purposes.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 2015-06-09 5:16 PM, David Ahrendts wrote:
>> Gentlemen, suggest some alternatives to the SignalLink USB for
>> digital. Would like to research.
>>
>> David A., KC0XT
>>
>>> On Jun 9, 2015, at 2:10 PM, Joe Subich, W4TV <[hidden email]> wrote:
>>>
>>>
>>>> I think there is one point that is overlooked in a lot of these
>>>> discussions. It really doesn't take much of a sound card to do
>>>> digital signal processing on 3 KHz or less audio streram.
>>>
>>> There are a significant number of reports concerning the issues with
>>> Signalink on-line if one bothers to look. In general they relate to
>>> improper filtering of the USB +5V power, lack of a regulator for the
>>> V/2 reference to the sound codec (analog to digital converter), lack
>>> of proper bypassing of noise from the various chips, requirement that
>>> the digital to analog converter be run at too high a level in order
>>> for the "VOX" to trigger reliably, etc.
>>>
>>> In general, this means Signalink loses 15 dB or more of signal to
>>> noise ratio (which is a big deal with modes like JT65 and JT9 on HF)
>>> on the receive side and is much more "dirty" (often with multiple
>>> audio signals) on transmit.
>>>
>>> You're correct that it does not take much of a sound card to decode
>>> some signals. However, the Signalink "sound card" contains most of
>>> the same components as the generic USB sound products that perform
>>> much better - yet Signalink costs two to three times as much.
>>>
>>> 73,
>>>
>>> ... Joe, W4TV
>>>
>>>
>>> On 2015-06-09 3:59 PM, Barry LaZar wrote:
>>>> Joe,
>>>> You bring an interesting point of view. I've been using a
>>>> SignaLink
>>>> USB for at least 3-4 years. I haven't had an issue with it except not
>>>> enough time to play. And, I can't blame the manufacturer for that.
>>>>
>>>> I think there is one point that is overlooked in a lot of these
>>>> discussions. It really doesn't take much of a sound card to do digital
>>>> signal processing on 3 KHz or less audio streram. However, I would
>>>> never
>>>> use a card in my laptop or my I/F for some of the heavier lifting here
>>>> in my shack where I need 96KHz sample rates or better with 24 bit
>>>> digitizing. But for just hook it up, set the levels and go, an
>>>> interface
>>>> with a built in sound card is not a bad way to go. In many cases,
>>>> it is
>>>> just easier to do and it allows for more flexibility.
>>>>
>>>> 73,
>>>> Barry
>>>> K3NDM
>>>>
>>>> On 6/9/2015 3:11 PM, Joe Subich, W4TV wrote:
>>>>>
>>>>> On 2015-06-09 12:02 PM, Bob N3MNT wrote:
>>>>>> OP said computer did not have an audio input.
>>>>>
>>>>> He's still better off with an external USB sound card of reasonable
>>>>> quality and a pair of audio cables than using the Tigertronix product
>>>>> of dubious quality and well documented poor design. A simple USB
>>>>> sound
>>>>> card of reasonable quality will cost 1/3 to 1/2 as much as the
>>>>> inferior
>>>>> "amateur" product.
>>>>>
>>>>> 73,
>>>>>
>>>>> ... Joe, W4TV
>>>>> ______________________________________________________________
>>>>> 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
>>>>> Message delivered to [hidden email]
>>>>>
>>>>
>>>> ______________________________________________________________
>>>> 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
>>>> Message delivered to [hidden email]
>>>>
>>> ______________________________________________________________
>>> 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
>>> Message delivered to [hidden email]
>>
>>
>>
>>
>> David Ahrendts [hidden email]
>>
>>
>>
>>
>>
> ______________________________________________________________
> Elecraft mailing list
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>
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--
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Jerry Ford

Fw: LP Pan adaptor for K2 for sale

In reply to this post by Don Wilhelm-4

    Good afternoon all:
I have a new in the box LP Pan adaptor for sale.      It's built for K2.
I built it but it's never been hooked up.   LED comes on when poweredup and it has all the correct voltages in the right spots.
When I built this adaptor, the EMU0202 sound card was the preferredcard.   the 0202 didn't work with Windows 7.   With no sound card,   I couldn't calibrate the adaptor. SO, it's built and ready.   Just match itup with your sound card, follow the directions in the LP Pan manual to calibrate to that card and have fun.
IF you looking at one of these, you know what they cost.   I'm asking$150.00 shipped
Please contact me off the list.    Thanks very much:
Jerry         N0JRN

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aj4tf

Re: Need local help

In reply to this post by Michael Rudolph

If you're talking about the Winbook TW700, it does indeed have a mic input. The audio jack is a 4-pin TRRS (tip-ring-ring-sleeve) with the same pinout as an iPad. I built a home brew cable set and interface and successfully made contacts using the Winbook, FLDIGI, and my K2.

de AJ4TF

Jerry Ford

Fw: LP Pan adaptor for K2 for sale

In reply to this post by Don Wilhelm-4

Robert Cunnings

Re: Fw: LP Pan adaptor for K2 for sale

I used the EMU0202 with Win7 machines here, using the "beta" driver for
Win7. There's a download link to this driver on the Telepostinc EMU0202
page:

http://www.telepostinc.com/emu0202.html

Might be worth a try. I use it successfully on a Win8.1 laptop also.

Bob NW8L

On Sat, 20 Jun 2015, Jerry Ford wrote:

>
>   Good afternoon all:
> I have a new in the box LP Pan adaptor for sale.      It's built for K2.
> I built it but it's never been hooked up.   LED comes on when poweredup and it has all the correct voltages in the right spots.
> When I built this adaptor, the EMU0202 sound card was the preferredcard.   the 0202 didn't work with Windows 7.   With no sound card,   I couldn't calibrate the adaptor. SO, it's built and ready.   Just match itup with your sound card, follow the directions in the LP Pan manual to calibrate to that card and have fun.
> IF you looking at one of these, you know what they cost.   I'm asking$150.00 shipped
> Please contact me off the list.    Thanks very much:
> Jerry         N0JRN
>
>
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]
>