[Elecraft] K3S Microphone Cable

[Bob McGraw K4TAX]

For a reason Clay stated and that is not using the shield as a current 
carrying conductor in audio, I use a 3 wire shielded cable for all my 
mike applications, ham radio and professional.   There are several good 
brands, Alpha, Belden, and others.  Also Heil has some cable which is 
suitable  where audio and PTT circuits are required.

A single conductor shielded cable is not suggested.   As to where to 
find and buy a good Foster connector, I haven't found a good source. As 
to other connectors such as the XLR series, I find Neutrik  to be the 
preferred brand or Amphenol as a 2nd choice.

73

Bob, K4TAX


On 1/15/2018 10:16 PM, Clay Autery wrote:
> In my experience, the best microphone cable stock currently existing is Canare Star Quad cable.
> I'm on my phone, so don't want tp peck out a complete answer here and now.
> Star Quad cable has 2 twisted pairs and a shield and is nice and flexible broadcast quality cable stock.  Has great endurance.
> I use it for my microphone, key, and any other cables I can.  There are at least 2 sizes now....  Get the largest wire gauge available.  Consider putting some on your shelf for future use too.
> I use a condenser mic so my wiring may be different, but I would never use the shield as a signal wire if I wasn't forced to....  Use the twisted pairs to your advantage.
> Can't help on the multi-pin connectors, as I don't use it at all.  But find and use the best ones tou can find.
> 73, ClayKY5G
>
>
> Sent from my Verizon, Samsung Galaxy smartphone
> -------- Original message --------From: john at kk9a.com Date: 1/15/18  19:46  (GMT-06:00) To: 'Elecraft Reflector' <elecraft at mailman.qth.net> Subject: [Elecraft] K3S Microphone Cable
> I am remaking my SO2R control box cables and I need to purchase quality
> microphone cable however I am not sure what to get. I am using an electret
> microphone. I assumed that I would need a cable with a single conductor and
> a shield but most mic cables that I see have two conductors. Belden has a
> single conductor
> http://www.awcwire.com/mfg/belden/product/belden-high-impedance-microphone-c
> able  but it's a high impendence cable and the Belden multi conductor cables
> are all low impendence. Does that matter? What gauge wire should I use for a
> 5ft cable?  I would appreciate any suggested cable models or feedback. I am
> also having a difficult time locating brand name quality 8-pin Foster mic
> plugs (I prefer using the front jacks).
>
> 73,
>
> John KK9A
>
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