[Repeater-Builder] Help with Duplexer
I dont usually post on the forum but rcv the emails everyday and follow all posts. I recently purchased a 4 can set of Sinclair Q020G cavities not knowing until I had them tuned and connected to the MSR2000 that they are Bandpass only. Needless to say that desense will not permit the rcv of weak signals at all say 5 miles away. Does anyone know of a good place to acquire a couple of the notch cavities with the cables to go with this set or of a good set of BP/BR cavities at a reasonable price to complete this repeater installation. We are located in South GA and are locating this repeaer on 146.715 mhz. All help is appreciated. Ron/N4SFU
RE: [Repeater-Builder] Help with Duplexer
Ron, If you really have a Q202G (I'm guessing that Q020G was a typo) cavity set, they are not bandpass. What suggests that they are bandpass? The standard Q202G BpBr duplexer has only one loop per can, and a blank plate is installed where a second loop would be. A tiny threaded cap next to each loop connector covers the notch adjustment. Be aware that a Q202G duplexer that was in commercial service will probably have the high-split harness that measures about 12 between the centers of each tee, and will not tune down to the 2m band. The harness drawing is found here: www.repeater-builder.com/sinclair/sinclair-q202-g-cable-harness.pdf 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n4sfu Sent: Saturday, June 27, 2009 7:13 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Help with Duplexer I dont usually post on the forum but rcv the emails everyday and follow all posts. I recently purchased a 4 can set of Sinclair Q020G cavities not knowing until I had them tuned and connected to the MSR2000 that they are Bandpass only. Needless to say that desense will not permit the rcv of weak signals at all say 5 miles away. Does anyone know of a good place to acquire a couple of the notch cavities with the cables to go with this set or of a good set of BP/BR cavities at a reasonable price to complete this repeater installation. We are located in South GA and are locating this repeaer on 146.715 mhz. All help is appreciated. Ron/N4SFU
Re: [Repeater-Builder] Help with Duplexer
I have a set of sinclair Q202GR and a set of Q202G on 2m and they work great. I wouldn't take anything for them. My company sells a lot or Telewave TPRD-1554 cans, but the sinclairs seem to be much better. My guess is size has a lot to do with it. One of the sinclair sets I have has the trimmer caps for the notch. The other two sets I have are the kinds with the clear plastic rods you slide in and out for the notch. Excellent units! 73 de N5NPO - Original Message - From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com Sent: Sat Jun 27 21:29:46 2009 Subject: RE: [Repeater-Builder] Help with Duplexer Ron, If you really have a Q202G (I'm guessing that Q020G was a typo) cavity set, they are not bandpass. What suggests that they are bandpass? The standard Q202G BpBr duplexer has only one loop per can, and a blank plate is installed where a second loop would be. A tiny threaded cap next to each loop connector covers the notch adjustment. Be aware that a Q202G duplexer that was in commercial service will probably have the high-split harness that measures about 12 between the centers of each tee, and will not tune down to the 2m band. The harness drawing is found here: www.repeater-builder.com/sinclair/sinclair-q202-g-cable-harness.pdf 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of n4sfu Sent: Saturday, June 27, 2009 7:13 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Help with Duplexer I dont usually post on the forum but rcv the emails everyday and follow all posts. I recently purchased a 4 can set of Sinclair Q020G cavities not knowing until I had them tuned and connected to the MSR2000 that they are Bandpass only. Needless to say that desense will not permit the rcv of weak signals at all say 5 miles away. Does anyone know of a good place to acquire a couple of the notch cavities with the cables to go with this set or of a good set of BP/BR cavities at a reasonable price to complete this repeater installation. We are located in South GA and are locating this repeaer on 146.715 mhz. All help is appreciated. Ron/N4SFU
Re: [Repeater-Builder] Help with Duplexer ID
Very true. But, that approximate diameter was very common in the paging systems that I installed/maintained. I still have a few in the basement somewhere. Joe Gary Hoff [EMAIL PROTECTED] wrote: = Diameter of the cavity doesn't necessarily determine frequency. 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/
Re: [Repeater-Builder] Help with Duplexer ID
22 1/4 is the circumference? That would make them about 7 in diameter. Sounds like 800-900Mhz equipment. Wacom was making some custom cans for the 900Mhz paging industry back a few years ago. Joe Don [EMAIL PROTECTED] wrote: = The Size is 10 In High and 22 in around 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/
Re: [Repeater-Builder] Help with Duplexer ID
Diameter of the cavity doesn't necessarily determine frequency. the following link might help. http://www.emrcorp.com/images/tech_papers/tech_cover/antenna_duplexors(15-26).pdf Gary - K7NEY - Original Message - From: Joe [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, March 11, 2005 5:40 AM Subject: Re: [Repeater-Builder] Help with Duplexer ID 22 1/4 is the circumference? That would make them about 7 in diameter. Sounds like 800-900Mhz equipment. Wacom was making some custom cans for the 900Mhz paging industry back a few years ago. Joe Don [EMAIL PROTECTED] wrote: = The Size is 10 In High and 22 in around 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/
[Repeater-Builder] Help with Duplexer ID
I need Help to Id a set of 4 Can Duplexers I Got from a Friend I hope they are for 220. They are not marked Except The harness 4 Cables with N Connectors are 8-9 in long They have WACO Written on them, On Top of each Can by the Connecter is Engraved MB. The Size is 10 ½ In High and 22 ¼ in around I know Wacom Made the WP-652 And the WP-653 this is not them also all Black in Color Any Help with the ID will be greatly appreciated Thanks Don KA9QJG 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/
Re: [Repeater-Builder] Help with duplexer
John Lloyd wrote: Steve, This Motorola Duplexer will work great with your repeater. You should be able to make the cables yourself. They are made with good quality Amphenol PL259 connectors. Don't use the radio shack ones. Use the ones with the white teflon center insulator. ...and not the white nylon ones =cP -- Jim The higher you are, the harder it is to pump. -Cleveland Mayor Jane Cambell, after the big black-out of 2003 Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
