"Duane Calvin" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Short answer: That S9+ signal that is 10 KHz away from you can't be heard by the radio except when he is transmitting, the noise floor level raises up. This is easily heard when that signal is CW and you can hear the noise increase enough to copy the CW via that noise. It can also be heard on a rig with significant phase noise on transmit. My neighbor (500' away) used to have a Kenwood TS-430 that had serious phase noise problems on transmit. If he was within ~100 KHz of me, I could hear my noise floor follow his signal. I was surprised to find him, one evening, and I didn't hear him until I was practically on top of him. I asked him a week or so later when I next saw him if he got a new rig - yep, got a new TS-570. It was significantly better on transmitted phase noise, and I was happy. (My Orion doesn't have any distinguishable phase noise issues.)
I guess that wasn't as short an answer as I had intended. FWIW. 73, Duane Duane Calvin, AC5AA Austin, Texas www.ac5aa.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron Wagner Sent: Tuesday, June 19, 2007 9:19 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]; recipient list not shown: Subject: Re: [drakelist] TR7 at FD Ron Wagner <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Question on the subject of hear/not hear. Although I know the "book definition" of phase noise. Can anyone describe to me what it sounds like? I actually have a couple early fully synthesized rigs here to sell for a friend (one I guess actually noted for its phase noise). I would like to set them up and listen to hear what I am "missing" with the TR7 (yes the TR7 has some too, as do all synthesized signals). Is it simply background noise, or noise modulation/intermod of the TX/RX signals, or both or ??? Thanks. Regards, Ron ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------