Mike, VE3RPT in Toronto was on the air in 1965 and still is to-day 147.060
John VE3AMZ ----- Original Message ----- From: "Mike Morris WA6ILQ" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Saturday, January 08, 2005 1:14 AM Subject: Re: [Repeater-Builder] Re: Motorola microphone schematic > > At 09:11 PM 1/7/05, you wrote: > > > > >__________________________________________________________ > > > >"He was Mr. Repeater" > > > > > > > >He sure was! > > > > > > > >K6MVH, Ken W. Sessions Jr. was editor of FM magazine and wrote the > > > >books: "Radio Amateur's F-M Repeater Handbook" and "The 2-Meter FM > > > >Repeater Circuits Handbook" > > > > > > The Repeater Handbook was the blue cover hardback printed by > > > Editors And Engineers, the Circuits Handbook was all the material > > > that was left over and was returned to Ken. When he went to work > > > for Wayne Green he took it along, and turned it into a book that > > > Wayne printed. > > > > > > Ken also wrote "The 2 Meter FM Handbook" that was published > > > by TAB books. > > > > > > I have copies of all of them. > > > > > >Yup I still have my "Repeater Handbook". > > > >Somewhat intriguing is an illustration in the Handbook of an > >*on-frequency* repeater. Was one of these ever built and used in > >practical form? > > > >Laryn K8TVZ > > For those that never saw the book there was a few > paragraphs on an interesting concept.... an > "on-frequency" repeater. Picture a regular duplex > repeater with the RX and the TX on the same channel! > > As the story I heard goes... > This device took advantage of a geographic anomaly > on Johnstone Peak - the lower site had the TX and the > upper site was behind a small ridgeline and couldn't > hear it. > > The old W6NO repeater (pre 600khz days) listened > on 146.820 and transmitted on 146.70mhz, long > before RTTY took over 146.70... > > Then the great conference took place, and all the Los > Angeles area repeaters moved to 600khz over a > month-long period. Neil WA6KLA can tell you about > that, as he was there. > > The 82-70 W6FNO box was given the 146.22-82 pair, > (the group had started out as an ARES team on 146.82 > simplex, and there were a LOT of 82 simplex rocks > around... with that pair at least the RX rocks would > be useful...). > > They converted the TX at the lower site to 146.82 and > hooked it up to the wireline coming down from the RX > site where the 2m RX, the 440 repeater and combination > control system was... they were going to convert the lower > site, then the upper site. They expected an instant lockup > once the repeater was turned back on, but it didn't. It took > a few minutes to figure out why - they knew that the isolation > between the two sites was good, but never expected the > geography to provide isolation that was THAT good...) > > For a while they experimented with the on-freq > repeater, even tried it with the autopatch, but ended up > converting the RX to 146.22 and having a conventional > carrier-squelch repeater. > > The concept is valid, has been proven, and would work > on any set of frequencies and at any location where you > have split sites with adequate isolation between the two > sites. > > BTW the W6FNO repeater has been in continuous > operation since at least 1967, possibly earlier... > It was first on 82-70, then on 22-82. It was WR6ACD > for a while, but it's the same group. Nowadays it's a > voting and simulcast system with 22-82 at both > Johnstone Peak (about 3000 feet) and at Onyx Peak > (at about 8,000 feet) over 60 miles away. > > Anybody know of a repeater with a longer history? > > Mike WA6ILQ > > > > > > > Yahoo! Groups Links > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/