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K3 audio line in/out cables

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Bob McGraw - K4TAX

K3 audio line in/out cables

Tony:

Only need one USB cable between the radio and computer. Audio TO/FROM
and CAT commands are handled over one cable. Works great! If you plug
anything into the rear Line, it will disconnect the audio via the USB
cable.

73

Bob, K4TAX

K3S s/n 10163

On 4/4/2018 8:17 AM, [hidden email] wrote:

> Message: 4
> Date: Tue, 3 Apr 2018 12:20:02 -0400
> From: "N2TK, Tony"<[hidden email]>
> To:<[hidden email]>
> Subject: [Elecraft] K3 audio line in/out cables
> Message-ID:<016601d3cb67$9eb505d0$dc1f1170$@verizon.net>
> Content-Type: text/plain; charset="us-ascii"
>
> I have upgraded both of my K3's to make them as close to a K3S as best I
> can. Presently cleaning up the rats nest of cables. I am using USB.
>
> I no longer use the Line IN and OUT jacks. Presently only using FSK. I plan
> on adding FT8 shortly. With the on board CODECs is there any reason I still
> need the LINE cables? Want to check to makes sure I am not missing
> something.
>
> 73,
>
> N2TK, Tony

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N2TK

Re: K3 audio line in/out cables

Thx Bob
N2TK, Tony

Sent from my iPhone

> On Apr 4, 2018, at 10:17 PM, Bob McGraw K4TAX <[hidden email]> wrote:
>
> Tony:
>
> Only need one USB cable between the radio and computer. Audio TO/FROM and CAT commands are handled over one cable. Works great! If you plug anything into the rear Line, it will disconnect the audio via the USB cable.
>
> 73
>
> Bob, K4TAX
>
> K3S s/n 10163
>
>
>
>> On 4/4/2018 8:17 AM, [hidden email] wrote:
>> Message: 4
>> Date: Tue, 3 Apr 2018 12:20:02 -0400
>> From: "N2TK, Tony"<[hidden email]>
>> To:<[hidden email]>
>> Subject: [Elecraft] K3 audio line in/out cables
>> Message-ID:<016601d3cb67$9eb505d0$dc1f1170$@verizon.net>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> I have upgraded both of my K3's to make them as close to a K3S as best I
>> can. Presently cleaning up the rats nest of cables. I am using USB.
>>
>> I no longer use the Line IN and OUT jacks. Presently only using FSK. I plan
>> on adding FT8 shortly. With the on board CODECs is there any reason I still
>> need the LINE cables? Want to check to makes sure I am not missing
>> something.
>>
>> 73,
>>
>> N2TK, Tony
>
> ______________________________________________________________
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>
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M0XDF

Re: K3 audio line in/out cables

In reply to this post by Bob McGraw - K4TAX

Bob, does the USB unit (part number escapes me) provide 2 channels on the Codex for dual receivers?

73 de David, M0XDF (K3 #174, P3 #108)

We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature's inexhaustible sources of energy -- sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that. -Thomas Edison, inventor (1847-1931)

> On 5 Apr 2018, at 03:17, Bob McGraw K4TAX <[hidden email]> wrote:
>
> Tony:
>
> Only need one USB cable between the radio and computer. Audio TO/FROM and CAT commands are handled over one cable. Works great! If you plug anything into the rear Line, it will disconnect the audio via the USB cable.
>
> 73
>
> Bob, K4TAX
>
> K3S s/n 10163
>
>
>
> On 4/4/2018 8:17 AM, [hidden email] wrote:
>> Message: 4
>> Date: Tue, 3 Apr 2018 12:20:02 -0400
>> From: "N2TK, Tony"<[hidden email]>
>> To:<[hidden email]>
>> Subject: [Elecraft] K3 audio line in/out cables
>> Message-ID:<016601d3cb67$9eb505d0$dc1f1170$@verizon.net>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> I have upgraded both of my K3's to make them as close to a K3S as best I
>> can. Presently cleaning up the rats nest of cables. I am using USB.
>>
>> I no longer use the Line IN and OUT jacks. Presently only using FSK. I plan
>> on adding FT8 shortly. With the on board CODECs is there any reason I still
>> need the LINE cables? Want to check to makes sure I am not missing
>> something.
>>
>> 73,
>>
>> N2TK, Tony
>
> ______________________________________________________________
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Don Wilhelm

Re: K3 audio line in/out cables

David,

Yes, both channels are present.

73,
Don W3FPR

On 4/5/2018 7:57 AM, David Ferrington, M0XDF wrote:
> Bob, does the USB unit (part number escapes me) provide 2 channels on the Codex for dual receivers?
>
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M0XDF

Re: K3 audio line in/out cables

Thank you Don - bang on as usual (both you and Elecraft :-)
73 de David, M0XDF (K3 #174, P3 #108)
We're here to put a dent in the universe. -Steve Jobs, entrepreneur and inventor (1955-2011)

> On 5 Apr 2018, at 13:26, Don Wilhelm <[hidden email]> wrote:
>
> David,
>
> Yes, both channels are present.
>
> 73,
> Don W3FPR
>
> On 4/5/2018 7:57 AM, David Ferrington, M0XDF wrote:
>> Bob, does the USB unit (part number escapes me) provide 2 channels on the Codex for dual receivers?

Bob McGraw - K4TAX

Re: K3 audio line in/out cables

In reply to this post by M0XDF

David:

Yes both channels supported.    Regarding USB cables, the standard A
Male to B Male is the configuration. Be sure to look for and get good
quality cables which do have a shield.   This will mitigate many RFI
issues associated with the cable picking up RF and allowing it to get
into the computer.    Of course a couple of turns through a ferrite
donut on the cable will also help.

73

Bob, K4TAX

On 4/5/2018 6:57 AM, David Ferrington, M0XDF wrote:
> Bob, does the USB unit (part number escapes me) provide 2 channels on
> the Codex for dual receivers?
>
> 73 de David, M0XDF (K3 #174, P3 #108)
>

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Bill Frantz

Re: K3 audio line in/out cables

Bob is right about cables, but things like USB hubs also need to
be considered. When I transmitted at more than 100W on certain
bands, my 7 port USB hub would lock up and need to be power
cycled. It has a plastic case, so I got a metal box to house it,
and a ferrite clamp on choke for each USB cable coming into it.
I stuffed all of them into the box, bonded the case to the shack
bonding system, and haven't had a problem since.

(The hub supports my external keyboard, mouse, backup drive the
K3, and a cable for syncing/charging my cell phone.)

On 4/5/18 at 7:41 AM, [hidden email] (Bob McGraw K4TAX) wrote:

>Yes both channels supported.    Regarding USB cables, the
>standard A Male to B Male is the configuration. Be sure to
>look for and get good quality cables which do have a
>shield.   This will mitigate many RFI issues associated with
>the cable picking up RF and allowing it to get into the
>computer.    Of course a couple of turns through a ferrite
>donut on the cable will also help.
>
>73
>
>Bob, K4TAX

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