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Nato 2000 extension speaker out issue?

Posted: 06 Jun 2018, 21:46
by dipstick
I draged my nato 2000 out for change, and pluged in my external speaker. and i can hear my own voice in the speaker along with a very loud roger bleep?


cant say i can remeber it doing this before, but not sure if i plugged in an external speaker before. on internal speaker its fine, you can just hear a very faint roger beep at the end of a transmission, but no voice when speaking into the mic. plug in the external speaker and its like having a monitor speaker.

any idea guys? all help aprciated

Re: Nato 2000 extension speaker out issue?

Posted: 07 Jun 2018, 07:04
by Mitch
You must have the ext speaker earthed somewhere, the mic disconnects the earth from the speaker on TX so it acts like a PA when it doesn't. It could be your speaker end or it could be inside the radio, easy to check with a multimeter. Not a hard fault to fix tbh.

Re: Nato 2000 extension speaker out issue?

Posted: 07 Jun 2018, 20:48
by cubwolf
Also worth checking you have a mono plug on your speaker. The sockets used in the Nato like the Formacs etc dont like stereo jack plugs

Re: Nato 2000 extension speaker out issue?

Posted: 08 Jun 2018, 18:11
by dipstick
Thanks guys all sorted now, it was an earth issue. works well this nato, quite impressed with it on FM at least.

Re: Nato 2000 extension speaker out issue?

Posted: 08 Jun 2018, 18:23
by cubwolf
Cool.
They are a good radio with a few minor mods.
Glad you sorted it