RE: [Repeater-Builder] Re: DB duplexer question
Jeff here you go 12 8 5/8 10 8 1/2 The two short ones are the cav conecters. the others are for the Tee. Dave Ka9gfs I went through four different varients of the square-cavity DB4076's here and none of them have cable lengths that match yours. In all cases, the cables going to the tee are the same length, whereas yours have 12 on one side and 10 on the other side. This looks like an obvious problem. I have to believe that one of the two cables (most likely the 10) isn't an original. --- Jeff
[Repeater-Builder] 220 mhz EF Johnson ACSB Repeater
I just picked up a 220 mhz repeater with Johnson numbers on it, but Securicor labels on the modules. Where can I get a manual for it? I am mainly interested in the power amp. LX-RT23 Repeater 023-1220-045 Power amp 023-1220-055 Power Supply Thanks, Jon
Re: [Repeater-Builder] Quieting duplex noise from a tower
No Rust --- On Thu, 3/12/09, Chuck Kelsey wb2...@roadrunner.com wrote: From: Chuck Kelsey wb2...@roadrunner.com Subject: Re: [Repeater-Builder] Quieting duplex noise from a tower To: Repeater-Builder@yahoogroups.com Date: Thursday, March 12, 2009, 5:00 PM Were they starting to show rust? Chuck WB2EDV - Original Message - From: neal Newman cozy...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Thursday, March 12, 2009 4:55 PM Subject: Re: [Repeater-Builder] Quieting duplex noise from a tower Samething here in NJ. the Club put all new Db Antennas On the 100 foot tower. New Feedline. still had the noise...new grounding system. all sections bonded. still Noise. changed the guy cables to Phillystrand. Problem went away Yahoo! Groups Links
[Repeater-Builder] Micor Card needed - TLN1251A
I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531
RE: [Repeater-Builder] Micor Card needed - TLN1251A
Scott, I have six of the MICOR Four User Control Module - TLN1685A. Might these work for your application? Each reed has an Enable/Disable switch on the front of the card... Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Scott Zimmerman I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531
Re: [Repeater-Builder] Micor Card needed - TLN1251A
They *would* if it was me doing the job. This is for the county's radio system, so I need to do it by the book. I mentioned about using some other modules, but others involved were rather persistent that we use the right cards. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Mark n9...@ameritech.net To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 11:26 AM Subject: RE: [Repeater-Builder] Micor Card needed - TLN1251A Scott, I have six of the MICOR Four User Control Module - TLN1685A. Might these work for your application? Each reed has an Enable/Disable switch on the front of the card... Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Scott Zimmerman I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 Yahoo! Groups Links
[Repeater-Builder] 220 Repeater Power Amp
Does anyone have some advice about what to use for a power amp in a 220 repeater? MIRAGE makes a 90 watt model they claim is for repeater service. I don't see anything else around. I'd be happy with 60 - 90 watts MAX output with maybe 10-20 watts drive. - Thanks.. - Mike
RE: [Repeater-Builder] Micor Card needed - TLN1251A
OK, I understand. But if they change their minds (or you determine the ones you are looking for are NLA) you know where these are. ;-) Mark -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Scott Zimmerman They *would* if it was me doing the job. This is for the county's radio system, so I need to do it by the book. I mentioned about using some other modules, but others involved were rather persistent that we use the right cards. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Mark n9...@ameritech.net To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 11:26 AM Subject: RE: [Repeater-Builder] Micor Card needed - TLN1251A Scott, I have six of the MICOR Four User Control Module - TLN1685A. Might these work for your application? Each reed has an Enable/Disable switch on the front of the card... Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Scott Zimmerman I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott
Re: [Repeater-Builder] 220 Repeater Power Amp
I also have a TE amp . and very happy with it On Fri, Mar 13, 2009 at 1:11 PM, James Delancy ctra...@gmail.com wrote: TE Systems in California is where I got my 220 amp. James WJ1D Michael Ryan wrote: Does anyone have some advice about what to use for a power amp in a 220 repeater? MIRAGE makes a 90 watt model they claim is for repeater service. I don’t see anything else around. I’d be happy with 60 – 90 watts MAX output with maybe 10-20 watts drive. – Thanks.. - Mike
RE: [Repeater-Builder] 220 Repeater Power Amp
I've had several users indicate that they are using TE Systems Amps in repeater service. I have one of the OLDER Mirage amps, I think it has been around here for 12 or more years at least, perhaps more. This SHOULD be pre-MFJ. My model is 25 in for 120 out. I planned to run 10 watts or so in for 75 or so out. Is this a reasonable choice? - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael Ryan Sent: Friday, March 13, 2009 11:51 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 220 Repeater Power Amp Does anyone have some advice about what to use for a power amp in a 220 repeater? MIRAGE makes a 90 watt model they claim is for repeater service. I don't see anything else around. I'd be happy with 60 - 90 watts MAX output with maybe 10-20 watts drive. - Thanks.. - Mike __ NOD32 3935 (20090313) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com
RE: [Repeater-Builder] WANTED: exec II desktop
Hey lance, just checking in. No rush if you haven't had a chance to go out to the shed. Thanks again, Chris Kb0wlf From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Captainlance Sent: Tuesday, February 24, 2009 4:23 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] WANTED: exec II desktop I have a few, all 100% working, clean. uhf and vhf, 50.00 each, plus shipping. (desk models) Lance N2HBA - Original Message - From: Chris Curtis mailto:demo...@rollanet.org To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 24, 2009 2:32 PM Subject: [Repeater-Builder] WANTED: exec II desktop How goes it everyone? Chris, kb0wlf here. I'm looking for Exec II desktop or wall mount radios. I'd like a vhf-lo, vhf-hi, and a uhf. Preferably, of course, INEXPENSIVE. =] Putting together a system with 6m/2m repeaters and a 70cm remote base. After reading the repeater building checklist, I decided to put another system on the air. Brings a tear to the eye thinking of the system I parted out. Well, the FF-800 controller anyway. =] Thanks for the bandwidth _ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.3/1969 - Release Date: 02/24/09 06:43:00 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.2/1964 - Release Date: 02/24/09 06:43:00
Re: [Repeater-Builder] 220 Repeater Power Amp
I ran a Mirage C2512G (s/n 30820) for a number of years at a reduced Pout (around 75 watts out of duplexer) and had no problems. The amp case is mounted on a very large heat sink for repeater use. Its only glitch was a nearby lightening strike that vaporized the output cap of the PA. Replaced the cap but never put it back on line as most users never noticed it wasn't there. Roger W5RDW 224.18 MHz Dallas - Original Message - From: Michael Ryan To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 4:12 PM Subject: RE: [Repeater-Builder] 220 Repeater Power Amp I've had several users indicate that they are using TE Systems Amps in repeater service. I have one of the OLDER Mirage amps, I think it has been around here for 12 or more years at least, perhaps more. This SHOULD be pre-MFJ. My model is 25 in for 120 out. I planned to run 10 watts or so in for 75 or so out. Is this a reasonable choice? - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael Ryan Sent: Friday, March 13, 2009 11:51 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 220 Repeater Power Amp Does anyone have some advice about what to use for a power amp in a 220 repeater? MIRAGE makes a 90 watt model they claim is for repeater service. I don't see anything else around. I'd be happy with 60 - 90 watts MAX output with maybe 10-20 watts drive. - Thanks.. - Mike __ NOD32 3935 (20090313) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com
[Repeater-Builder] SCR-200(A)
Well, guys, I promised to follow up with the results of my attempt to repair the old Spectrum 1000 with the later model receiver. Thanks to Larry and Joe, I have determined that my receiver is not an SCR200A but probably a later model of the SCR-200. I obtained at least three versions of the schematic from this series receiver thanks to these two gentlemen. Of utmost importance was finding out the transistor part number since my schematic was the wrong version. I was able to replace the front RF amp and get the receiver working again. Before doing that, however, I noted the inadequate wiring, IMHO, in the power supply. The SCR-1000 upgraded PS has plenty of safety factor designed in as far as series pass transistors, etc. but the size of the wires was amazingly small. I completely rewired the high current circuits to match the rest of the design. I am wondering if during the period of this antique repeater there was a shortage of copper and the price was high. After rewiring, the power output of the transmitter was noticeably increased to about 78 watts while it's specified as a 70 watt PA. I took the repeater to a staging area where we had another duplexer to test it on the air. (The actual installation is in the county jail in a jail cell) Distant signals would develop a COR but there was no audio when using the duplexer. When the antenna is directly attached to the receiver with the transmitter on dummy load, it works fine. At this point we were too tired to go further so will get back on it again soon. I suppose the front end may need touching up with that duplexer which has been checked out on another setup. Thanks again to Joe, Larry and the list for their excellent help. 73 de Morris KI4IUA attachment: winmail.dat
[Repeater-Builder] Re: Quieting duplex noise from a tower
Replace all electrical fixtures, i had a site they was was using sub standard fixtures that was creating all sorts of havoc. and this solved all duplex issues. Ryan n3ssl
RE: [Repeater-Builder] Re: Quieting duplex noise from a tower
There seems to be lots of opinions , how about a simple find the problem fella's ? I recently was asked to find some noise on a similar situation . We fired up my promax 577 tuned around a little whilst climbing and found the problem making the fix asy ( some wire clamps on the supporting structure) replacing them with stainless instead of galv... B ( google the 577 as they are very useful) To: Repeater-Builder@yahoogroups.com From: n3...@yahoo.com Date: Sat, 14 Mar 2009 00:04:14 + Subject: [Repeater-Builder] Re: Quieting duplex noise from a tower Replace all electrical fixtures, i had a site they was was using sub standard fixtures that was creating all sorts of havoc. and this solved all duplex issues. Ryan n3ssl _ Need a new place to rent, share or buy? Let ninemsn property help. http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fninemsn%2Edomain%2Ecom%2Eau%2F%3Fs%5Fcid%3DFDMedia%3ANineMSN%5FHotmail%5FTagline_t=774152450_r=Domain_tagline_m=EXT
RE: [Repeater-Builder] Re: Quieting duplex noise from a tower
There seems to be lots of opinions , how about a simple find the problem fella's ? I recently was asked to find some noise on a similar situation . We fired up my promax 577 tuned around a little whilst climbing and found the problem making the fix asy ( some wire clamps on the supporting structure) replacing them with stainless instead of galv... B ( google the 577 as they are very useful) Yeah, I was going to suggest a simplified version of what you're talking about - climb the tower with a little AM transistor radio tuned to a weak station, key the transmitter on and off, and see if you can find a noise hot spot or anything that when moved or vibrated causes the noise level to increase. However, I haven't tried this using VHF excitation, but I've used the same technique to find all kinds of other broadband noise sources. The local power company uses an AM receiver operating in the VHF range (I think I was told it was around 110 MHz) to locate bad/arcing insulators, fuses, etc. on primary lines. --- Jeff WN3A
Re: [Repeater-Builder] SCR-200(A)
Morris, I'm not even to ask why the actual installation is in the county jail in a jail cell. I'll bet that's an actual story onto its self. I had an SCR2000A when I started in the ham repeater hobby, but soon realized that it was quite inferior. When I had it, I also re-wired the power supply, as you have, and the machine just sat there and ran. No issues. As far as the receiver goes, well, it's a stretch. It's not mother MOTO or GE, but it gets the job done. I finally got rid of it and acquired a MICOR with a unified chassis. Best money I've ever spent. Worth every dollar. Good luck on getting the system up and running. 73, Don, KD9PT - Original Message - From: Morris Dillingham mdi...@nnwifi.com To: k1ike_m...@snet.net; la...@n7fm.com Cc: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 6:55 PM Subject: [Repeater-Builder] SCR-200(A) Well, guys, I promised to follow up with the results of my attempt to repair the old Spectrum 1000 with the later model receiver. Thanks to Larry and Joe, I have determined that my receiver is not an SCR200A but probably a later model of the SCR-200. I obtained at least three versions of the schematic from this series receiver thanks to these two gentlemen. Of utmost importance was finding out the transistor part number since my schematic was the wrong version. I was able to replace the front RF amp and get the receiver working again. Before doing that, however, I noted the inadequate wiring, IMHO, in the power supply. The SCR-1000 upgraded PS has plenty of safety factor designed in as far as series pass transistors, etc. but the size of the wires was amazingly small. I completely rewired the high current circuits to match the rest of the design. I am wondering if during the period of this antique repeater there was a shortage of copper and the price was high. After rewiring, the power output of the transmitter was noticeably increased to about 78 watts while it's specified as a 70 watt PA. I took the repeater to a staging area where we had another duplexer to test it on the air. (The actual installation is in the county jail in a jail cell) Distant signals would develop a COR but there was no audio when using the duplexer. When the antenna is directly attached to the receiver with the transmitter on dummy load, it works fine. At this point we were too tired to go further so will get back on it again soon. I suppose the front end may need touching up with that duplexer which has been checked out on another setup. Thanks again to Joe, Larry and the list for their excellent help. 73 de Morris KI4IUA Yahoo! Groups Links
RE: [Repeater-Builder] SCR-200(A)
Thanks, Don, for the story about your SCR-200A. Sounds like the PS wiring was a common issue at the time. The local club was able to get space on the county sheriff's tower. The repeater went into a jail cell which appears to be the solitary confinement one. It sits on the steel bunk along with an FBI repeater. We have a weekly Jailhouse Net or will have again when operational. 73 de Morris KI4IUA -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- buil...@yahoogroups.com] On Behalf Of Don Kupferschmidt Sent: Friday, March 13, 2009 8:57 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] SCR-200(A) Morris, I'm not even to ask why the actual installation is in the county jail in a jail cell. I'll bet that's an actual story onto its self. I had an SCR2000A when I started in the ham repeater hobby, but soon realized that it was quite inferior. When I had it, I also re-wired the power supply, as you have, and the machine just sat there and ran. No issues. As far as the receiver goes, well, it's a stretch. It's not mother MOTO or GE, but it gets the job done. I finally got rid of it and acquired a MICOR with a unified chassis. Best money I've ever spent. Worth every dollar. Good luck on getting the system up and running. 73, Don, KD9PT - Original Message - From: Morris Dillingham mdi...@nnwifi.com To: k1ike_m...@snet.net; la...@n7fm.com Cc: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 6:55 PM Subject: [Repeater-Builder] SCR-200(A) Well, guys, I promised to follow up with the results of my attempt to repair the old Spectrum 1000 with the later model receiver. Thanks to Larry and Joe, I have determined that my receiver is not an SCR200A but probably a later model of the SCR-200. I obtained at least three versions of the schematic from this series receiver thanks to these two gentlemen. Of utmost importance was finding out the transistor part number since my schematic was the wrong version. I was able to replace the front RF amp and get the receiver working again. Before doing that, however, I noted the inadequate wiring, IMHO, in the power supply. The SCR-1000 upgraded PS has plenty of safety factor designed in as far as series pass transistors, etc. but the size of the wires was amazingly small. I completely rewired the high current circuits to match the rest of the design. I am wondering if during the period of this antique repeater there was a shortage of copper and the price was high. After rewiring, the power output of the transmitter was noticeably increased to about 78 watts while it's specified as a 70 watt PA. I took the repeater to a staging area where we had another duplexer to test it on the air. (The actual installation is in the county jail in a jail cell) Distant signals would develop a COR but there was no audio when using the duplexer. When the antenna is directly attached to the receiver with the transmitter on dummy load, it works fine. At this point we were too tired to go further so will get back on it again soon. I suppose the front end may need touching up with that duplexer which has been checked out on another setup. Thanks again to Joe, Larry and the list for their excellent help. 73 de Morris KI4IUA Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] Re: Quieting duplex noise from a tower
Yeah, I was going to suggest a simplified version of what you're talking about - climb the tower with a little AM transistor radio tuned to a weak station, key the transmitter on and off, and see if you can find a noise hot spot or anything that when moved or vibrated causes the noise level to increase. However, I haven't tried this using VHF excitation, but I've used the same technique to find all kinds of other broadband noise sources. The local power company uses an AM receiver operating in the VHF range (I think I was told it was around 110 MHz) to locate bad/arcing insulators, fuses, etc. on primary lines. Thanks Jeff. I will try that, and also inducing vibration in the tower structure(s) by wrapping it with something as soon as I can. Maybe I will get lucky and find something. If I don't find any specific problem areas, I'm leaning strongly toward trying Phillystran guys when I can come up with the $$$ to do it. I appreciate the input from everyone on this problem. Paul N1BUG
Re: [Repeater-Builder] SCR-200(A)
Spectrum was indicted in the early 1980s for spurious emissions. The unstable are often placed in solitary confinement. 73, Paul, AE4KR - Original Message - From: Don Kupferschmidt To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 6:56 PM Subject: Re: [Repeater-Builder] SCR-200(A) Morris, I'm not even to ask why the actual installation is in the county jail in a jail cell. I'll bet that's an actual story onto its self.
Re: [Repeater-Builder] SCR-200(A)
Hello Morris, I'm glad to heard the that you got the receiver working! Just one question, was the test duplexer tuned to the proper frequencies? Was it desense or just loss of sensitivity when using the duplexer? In other words, were you able to hear distant signals with the transmitter turned off? 73, Joe, K1ike Morris Dillingham wrote: Well, guys, I promised to follow up with the results of my attempt to repair the old Spectrum 1000 with the later model receiver. Thanks to Larry and Joe, I have determined that my receiver is not an SCR200A but probably a later model of the SCR-200. I obtained at least three versions of the schematic from this series receiver thanks to these two gentlemen. Of utmost importance was finding out the transistor part number since my schematic was the wrong version. I was able to replace the front RF amp and get the receiver working again. Before doing that, however, I noted the inadequate wiring, IMHO, in the power supply. The SCR-1000 upgraded PS has plenty of safety factor designed in as far as series pass transistors, etc. but the size of the wires was amazingly small. I completely rewired the high current circuits to match the rest of the design. I am wondering if during the period of this antique repeater there was a shortage of copper and the price was high. After rewiring, the power output of the transmitter was noticeably increased to about 78 watts while it's specified as a 70 watt PA. I took the repeater to a staging area where we had another duplexer to test it on the air. (The actual installation is in the county jail in a jail cell) Distant signals would develop a COR but there was no audio when using the duplexer. When the antenna is directly attached to the receiver with the transmitter on dummy load, it works fine. At this point we were too tired to go further so will get back on it again soon. I suppose the front end may need touching up with that duplexer which has been checked out on another setup. Thanks again to Joe, Larry and the list for their excellent help. 73 de Morris KI4IUA Yahoo! Groups Links
RE: [Repeater-Builder] Micor Card needed - TLN1251A
Scott, What type of Micor station would use this card? 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Scott Zimmerman Sent: Friday, March 13, 2009 8:18 AM To: motorola-u...@yahoogroups.com; Repeater Builder List Subject: [Repeater-Builder] Micor Card needed - TLN1251A I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531
RE: [Repeater-Builder] Re: Quieting duplex noise from a tower
Should do the trick although it might take som more effort... maybe your neighbour works for a satellite or comms company , couple of beers ? To: Repeater-Builder@yahoogroups.com From: j...@broadsci.com Date: Fri, 13 Mar 2009 20:40:57 -0400 Subject: RE: [Repeater-Builder] Re: Quieting duplex noise from a tower There seems to be lots of opinions , how about a simple find the problem fella's ? I recently was asked to find some noise on a similar situation . We fired up my promax 577 tuned around a little whilst climbing and found the problem making the fix asy ( some wire clamps on the supporting structure) replacing them with stainless instead of galv... B ( google the 577 as they are very useful) Yeah, I was going to suggest a simplified version of what you're talking about - climb the tower with a little AM transistor radio tuned to a weak station, key the transmitter on and off, and see if you can find a noise hot spot or anything that when moved or vibrated causes the noise level to increase. However, I haven't tried this using VHF excitation, but I've used the same technique to find all kinds of other broadband noise sources. The local power company uses an AM receiver operating in the VHF range (I think I was told it was around 110 MHz) to locate bad/arcing insulators, fuses, etc. on primary lines. --- Jeff WN3A _ Looking for a place to manage all your online stuff? Explore the new Windows Live . http://www.microsoft.com/australia/windows/windowslive/
[Repeater-Builder] Yaesu FTR UHF Repeater Transmitters and Receivers 430-450mhz
I hope it's ok to post this here. These are hard to find I'm told. If anyone is interested : New Old Stock Yaesu FTR UHF Repeater Transmitters and Receivers 430-450mhz listed on ebay, Item number: 120390783477. With copy of the manual. You supply the xtals for your UHF frequency. Thanks, Jim
RE: [Repeater-Builder] SCR-200(A)
Joe, the duplexer had been tuned by someone else. It did appear to work ok in another lashup with other equipment. I haven't been back to the test site to try it without the transmitter but it could have been desense as the COR worked. I'll have to get my cohort to try it as he is close to the equipment in fact it's at his QTH. You may have guessed by now that I'm new to this facet of radio. I'm beginning to realize how important this desense topic is. Thanks for the great question you pose. We plan another test tomorrow with the transmitter off. 73 de Morris KI4IUA -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- buil...@yahoogroups.com] On Behalf Of Joe Sent: Friday, March 13, 2009 9:39 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] SCR-200(A) Hello Morris, I'm glad to heard the that you got the receiver working! Just one question, was the test duplexer tuned to the proper frequencies? Was it desense or just loss of sensitivity when using the duplexer? In other words, were you able to hear distant signals with the transmitter turned off? 73, Joe, K1ike Morris Dillingham wrote: Well, guys, I promised to follow up with the results of my attempt to repair the old Spectrum 1000 with the later model receiver. Thanks to Larry and Joe, I have determined that my receiver is not an SCR200A but probably a later model of the SCR-200. I obtained at least three versions of the schematic from this series receiver thanks to these two gentlemen. Of utmost importance was finding out the transistor part number since my schematic was the wrong version. I was able to replace the front RF amp and get the receiver working again. Before doing that, however, I noted the inadequate wiring, IMHO, in the power supply. The SCR-1000 upgraded PS has plenty of safety factor designed in as far as series pass transistors, etc. but the size of the wires was amazingly small. I completely rewired the high current circuits to match the rest of the design. I am wondering if during the period of this antique repeater there was a shortage of copper and the price was high. After rewiring, the power output of the transmitter was noticeably increased to about 78 watts while it's specified as a 70 watt PA. I took the repeater to a staging area where we had another duplexer to test it on the air. (The actual installation is in the county jail in a jail cell) Distant signals would develop a COR but there was no audio when using the duplexer. When the antenna is directly attached to the receiver with the transmitter on dummy load, it works fine. At this point we were too tired to go further so will get back on it again soon. I suppose the front end may need touching up with that duplexer which has been checked out on another setup. Thanks again to Joe, Larry and the list for their excellent help. 73 de Morris KI4IUA Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] Micor Card needed - TLN1251A
Eric, I'm not sure. I found (1) in my stash that I have collected at hamfests and whatnot over the years. I have no idea what model numbers these would have been found in. Knowing Motorola (and my dumb luck) there weren't very many made. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Eric Lemmon wb6...@verizon.net To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 9:40 PM Subject: RE: [Repeater-Builder] Micor Card needed - TLN1251A Scott, What type of Micor station would use this card? 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Scott Zimmerman Sent: Friday, March 13, 2009 8:18 AM To: motorola-u...@yahoogroups.com; Repeater Builder List Subject: [Repeater-Builder] Micor Card needed - TLN1251A I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 Yahoo! Groups Links
Re: [Repeater-Builder] Micor Card needed - TLN1251A
The typical application is to be able to drop RX PL from the console. Not just to check for co-channel users (ie the monitor function which is reset by PTT) but to go to and stay in carrier squelch even when transmitting until commanded back to PL receive. Hypothetical example: The medivac helicoptor (or your neighboring mutual aid department) does currently have the proper PL for your county. Dropping PL receive lets you hear him transmit and you can reply to him. When the incident is over the PL receive is reenabled. Milt N3LTQ - Original Message - From: Scott Zimmerman n3...@repeater-builder.com To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 11:00 PM Subject: Re: [Repeater-Builder] Micor Card needed - TLN1251A Eric, I'm not sure. I found (1) in my stash that I have collected at hamfests and whatnot over the years. I have no idea what model numbers these would have been found in. Knowing Motorola (and my dumb luck) there weren't very many made. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Eric Lemmon wb6...@verizon.net To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 9:40 PM Subject: RE: [Repeater-Builder] Micor Card needed - TLN1251A Scott, What type of Micor station would use this card? 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Scott Zimmerman Sent: Friday, March 13, 2009 8:18 AM To: motorola-u...@yahoogroups.com; Repeater Builder List Subject: [Repeater-Builder] Micor Card needed - TLN1251A I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 Yahoo! Groups Links Yahoo! Groups Links
RE: [Repeater-Builder] Micor Card needed - TLN1251A
For what it's worth, the manual that covers the TLN1251A module is 6881005E01. The title is TLN1249A, TLN1250A, and TLN1251A Decoder Module Options. Unfortunately, it's NLA. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Milt Sent: Friday, March 13, 2009 9:17 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor Card needed - TLN1251A The typical application is to be able to drop RX PL from the console. Not just to check for co-channel users (ie the monitor function which is reset by PTT) but to go to and stay in carrier squelch even when transmitting until commanded back to PL receive. Hypothetical example: The medivac helicoptor (or your neighboring mutual aid department) does currently have the proper PL for your county. Dropping PL receive lets you hear him transmit and you can reply to him. When the incident is over the PL receive is reenabled. Milt N3LTQ - Original Message - From: Scott Zimmerman n3...@repeater-builder.com mailto:n3xcc%40repeater-builder.com To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Friday, March 13, 2009 11:00 PM Subject: Re: [Repeater-Builder] Micor Card needed - TLN1251A Eric, I'm not sure. I found (1) in my stash that I have collected at hamfests and whatnot over the years. I have no idea what model numbers these would have been found in. Knowing Motorola (and my dumb luck) there weren't very many made. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Eric Lemmon wb6...@verizon.net mailto:wb6fly%40verizon.net To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Friday, March 13, 2009 9:40 PM Subject: RE: [Repeater-Builder] Micor Card needed - TLN1251A Scott, What type of Micor station would use this card? 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 Scott Zimmerman Sent: Friday, March 13, 2009 8:18 AM To: motorola-u...@yahoogroups.com mailto:Motorola-User%40yahoogroups.com ; Repeater Builder List Subject: [Repeater-Builder] Micor Card needed - TLN1251A I am in need of a few TLN1251 cards. These are more commonly known as private line control modules. They have 2 momentary switches in the front labeled Operate PL and Operate Carrier Squelch. They have 2 tone decoders on board - 1550 Hz and 1450 Hz. If you or anyone you know has any they don't need, let me know. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 Yahoo! Groups Links Yahoo! Groups Links
RE: [Repeater-Builder] 220 Repeater Power Amp
Thats the model I am using now. I have some other issues to study before changing to another amp. But hearing that someone is using this same amp is encouraging. Like I said though, I have to check into the actual tuning of the transmitter to see if I have done something that is creating my problem. For those interested, the cables in the rack are all RG-400, no 9913 or clones, no LMR stuff...nothing else. Duplexer is Telewave 4 cans, RG-214 cabled, ½ Andrew hardline to the antenna. -Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Roger White Sent: Friday, March 13, 2009 5:45 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] 220 Repeater Power Amp I ran a Mirage C2512G (s/n 30820) for a number of years at a reduced Pout (around 75 watts out of duplexer) and had no problems. The amp case is mounted on a very large heat sink for repeater use. Its only glitch was a nearby lightening strike that vaporized the output cap of the PA. Replaced the cap but never put it back on line as most users never noticed it wasn't there. Roger W5RDW 224.18 MHz Dallas - Original Message - From: Michael Ryan mailto:mryan...@tampabay.rr.com To: Repeater-Builder@yahoogroups.com Sent: Friday, March 13, 2009 4:12 PM Subject: RE: [Repeater-Builder] 220 Repeater Power Amp Ive had several users indicate that they are using TE Systems Amps in repeater service. I have one of the OLDER Mirage amps, I think it has been around here for 12 or more years at least, perhaps more. This SHOULD be pre-MFJ. My model is 25 in for 120 out. I planned to run 10 watts or so in for 75 or so out. Is this a reasonable choice? - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael Ryan Sent: Friday, March 13, 2009 11:51 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 220 Repeater Power Amp Does anyone have some advice about what to use for a power amp in a 220 repeater? MIRAGE makes a 90 watt model they claim is for repeater service. I dont see anything else around. Id be happy with 60 90 watts MAX output with maybe 10-20 watts drive. Thanks.. - Mike __ NOD32 3935 (20090313) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com __ NOD32 3935 (20090313) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com
