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Author Topic: Multiple Radio to One Headset (Mic/Headphone) Interface  (Read 7137 times)
W9BKR
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Posts: 413




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« on: September 08, 2013, 04:06:44 PM »

Looking for a design that will switch multiple radio headphone outputs to one headset, likewise, multiple radio microphone inputs to one headset....

Anyone have a link to such a device?
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KA4POL
Member

Posts: 1966




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« Reply #1 on: September 08, 2013, 09:49:11 PM »

The MFJ 1263 is something that comes close to your plan. If you want to DIY that circuit you could do it with just two multilayer multiposition switches.
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W9BKR
Member

Posts: 413




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« Reply #2 on: September 09, 2013, 02:04:11 AM »

Only allows two radios and they pretty much need to be the same type (model).  Ran into that investigating MFJ's product, which they never mentioned.  Can't use it.
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K9YLI
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Posts: 859




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« Reply #3 on: September 09, 2013, 08:55:58 AM »

head phone part is easy.. a double pole double throw  switch.  mostly  8 ohms outputs.
If an old radio  with  higher impedance  phones, then a transformer to match one side orr the other.

The mics  might be harder, although most modern rigs use more common mics.
some may need wire for the  electret power.

my headset works on both the TS180S and the  Yeasu  FT980.. both use  about  10k  mic.

just match the impedance ..

easy  DIY operation..

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N4ATS
Member

Posts: 808




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« Reply #4 on: September 09, 2013, 09:28:10 AM »

There are quite a lot of companies that make a such device. Here is just one...

NCS Radio

http://www.ncsradio.com/m_switch.html
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W9BKR
Member

Posts: 413




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« Reply #5 on: September 09, 2013, 12:35:21 PM »

I dont think NCG makes that gizmo anymore...
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N4ATS
Member

Posts: 808




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« Reply #6 on: September 09, 2013, 02:34:16 PM »

That was an example , here is another one...

MicroHAM http://microham-usa.com/
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