Thanks for the reply, Grant. My R 390 doesn't mute when terminal 9 is grounded. I have connected an alligator clip lead to terminal 9 and then connected the other end of the clip lead to terminal 16 which is ground and there is no effect. I can't figure out why there is no effect when terminal 9 is grounded. What do you think, Grant? I do not have a manual or schematic for the R390. 73, John, K5PGW
----- Original Message ---- From: Grant Youngman <n...@tx.rr.com> To: Discussion of AM Radio in the Amateur Service <amradio@mailman.qth.net> Sent: Tue, December 1, 2009 9:19:05 PM Subject: Re: [AMRadio] Muting the R390 on transmit It's terminal 9 (first terminal on the left) of the rightmost terminal block (looking from the rear of the radio), marked BRK IN. Ground this terminal to mute the receiver when the "Break In" switch is set to ON. Grant/NQ5T On Dec 1, 2009, at 8:51 PM, Brett Gazdzinski wrote: > Its been a while since I had mine, but think there were terminals on the > back marked 'mute'. ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
