Heil Gold Line Mic on RCI-2970

[w4bss]

I have a RCI-2970 that I use on 10 meters and I have a spare Heil Gold Line Mic that I would like to use on this radio.

My question is can the Heil be wired to work on the RCI? I believe it doesn't require any power from the radio since it isn't a power mic.

Also since this is a dual element mic how will it sound on the RCI?

Thanks for the help!

W4BSS

 

[dave457]

http://www.worldwidedx.com/installa...-mic-sound-your-cb-export-radio-part-1-a.html

 

[w4bss]

I did a search but I did not see this write up.
Thanks for steering me in the right direction Dave!!

73s

 

[Robb]

Mic Wiring

1. Ground Shield
2. Audio Yellow
3. Transmit Red
4. Receive Black
5. CH. Up White
6. CH. Down Blue

http://www.cbtricks.com/radios/rci/rci_2970/index.htm

 

[Mudfoot]

Any reports of how well it sounds?

Be noice if you can get someone to record your audio.

 

[w4bss]

Any reports of how well it sounds?

Be noice if you can get someone to record your audio.

I haven't tore into it yet. I will post my results soon and I hope to get a recording! I lost my job so that is first priority for right now and trying to please my wife.

Thanks everyone for the pointers I hope to have this done by the weekend.

 

[w4bss]

Also do you guys think I will need a Mic Preamp to make the Heil work.
I was also told you don't need a Preamp with a Heil since it doesn't require voltage to work.

I know on my Kenwood TS-950SDX I have the Heil connected straight to the radio with no preamp and it SOUNDS GOOOOOOD! I know that radio has alot to do with it sounding like that. If only I could get the 2970 to sound that good LOL!!

 

[ExitThirteen]

There is a little bit of an impedance mismatch between the mic and the radio, but you should be able to run the mic without a preamp. Try it without first; if it doesn't work, you'll have to put a preamp inline.

The mic audio circuit in the 2970 is designed for low impedance mics, about 500-600 ohms. The Heil mic is rated at 1000 ohms, if it has the GM-4 and GM-5 elements. The Vintage model of this mic is 30k ohms, and will definitely not work with the 2970; a preamp will be needed if you have that model.

Good luck and let us know how you get on.

~Cheers~

 

[TonyV225]

The missmatch was the first thing I also thought about.