There are two ways. Both involve muting/switching to standby the reciever:
1. Quick and dirty (and very old school) - switch the rciever to standby before transmittting by hand from the front panel. 2. For PTT-type operation - most halfway decent older receivers have a muting line on an accessory plug on the back of the receiver. Oftentimes you'll see a wire bridging the two muting contacts, so you can use the Standby switch on the front of the receiver. Wire the muting line contacts to a relay that's fired (and will go to Open when actuated) by the PTT/keying line of your transmitter. This will mute the receiver. Oh, I forgot to mention, some of the newer receivers will actually have a terminal labled "Receiver Mute" on them. The older tube receivers can take some abuse if you goof, and forget to mute them during transmit. But, it's not a good idea to do it all of the time, as the receiver can end up permanently desensed. 73, Ellen - AF9J ----- Original Message ----- From: "Jim Miller WB5OXQ in Waco" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" <amradio@mailman.qth.net> Sent: Tuesday, September 18, 2007 10:38 PM Subject: Re: [AMRadio] Receivers > When using a receiver and a transceiver as a transmitter how do you switch > the antenna off of the stand alone receiver when transmitting. I used to > have a HQ180 that was a real good receiver with the transmitter section of a > ts 2000 but I could not share the antenna and when using a separate rx > antenna I was always afraid of burning out something in the receiver front > end. I sold the hammarlund but I may buy a nc 300. I don't know how these > receivers would compare. The Hammarlund was real good. > wb5oxq > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.487 / Virus Database: 269.13.22/1015 - Release Date: 9/18/2007 11:53 AM > > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
