Re: [Repeater-Builder] MSR 2000 VHF Base Station questions
Dan, You should have no problem converting your unit to a repeater. The repeater builder web site has a whole section devoted to the MSR 2000. In my area we have converted many of these into repeaters and they work fine. If you want to upgrade your amp, let me know. I have a spare continuous duty amp I can part with. Jim - Original Message - From: wb0shn dan...@ckt.net To: Repeater-Builder@yahoogroups.com Sent: Sunday, August 29, 2010 18:41 Subject: [Repeater-Builder] MSR 2000 VHF Base Station questions Just acquired a MSR 2000 VHF base station at a Hamfest. It had a problem in the PA Deck (intermittent duty 100 watt version) but I have fixed that already (bad solder joint on one of the output transistors). It is a two receiver carrier squelch only model. I found a copy of the RF manual on the net to download, but have not been able to find a copy of the control deck manual yet. Does anyone know where I can get a PDF copy? Has anyone used one of these to build a two meter repeater? Will the Intermittent duty PA survive at half power? Any help would be appreciated. The machine is set up for wireline tone 2 frequency right now. Thanks, Dan Yahoo! Groups Links
Re: [Repeater-Builder] adding a 3/4meter repeater to my site?
John, You will get as many positive answers as you will negative. That said, the proper way would be 2 antennas and 2 runs of coax. If you already have the dual band antenna and want to go that route there are several things to watch out for. What is the power rating of your antenna? If you have 2 repeaters putting out 100 watts into an antenna rated at 100 watts, you will damage the antenna. At the ground end, you will need a diplexer to split the single run of coax into one for each repeater. The diplexer will have the same power restrictions as the antenna. Without keeping these two restrictions in mind, you may spend more $$ the second time around. Jim - Original Message - From: John fritzej...@gmail.com To: Repeater-Builder@yahoogroups.com Sent: Friday, July 23, 2010 08:49 Subject: [Repeater-Builder] adding a 3/4meter repeater to my site? I am sure this is a stupid question, or it seems so to me, but I can't find the answer anywhere. I am thinking about putting a 440 Mhz repeater (or link) for Packet at my 2M repeater site. Can I use the same coax and antenna (multi band) or do I need a complete seperate run? Hoping to save a chunk of change ;-) Of course I'll need seperate cavities and /or duplexer. Thanks, John K2QY Yahoo! Groups Links
Re: [Repeater-Builder] GE continuous duty amp
PL19D417535G1 and the REV # is blank. This came from a local organization and was in the 154.XXX range. - Original Message - From: Eric Lemmon wb6...@verizon.net To: Repeater-Builder@yahoogroups.com Sent: Sunday, July 04, 2010 00:57 Subject: RE: [Repeater-Builder] GE continuous duty amp What is the model number of your surplus amplifier? 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of WA2RJP Sent: Saturday, July 03, 2010 5:39 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] GE continuous duty amp I have a VHF HI 40 watt continuous duty amp that is surplus to my needs. Would anyone be willing to trade for a 6 meter version? This is a working unit that was removed from a station conversion project. Yahoo! Groups Links
Re: [Repeater-Builder] 220 duplexers
Stan, I sent something to your personal email the other day. Have you seen it? It may be what you need. Jim WA2RJP - Original Message - From: Stan To: Repeater-Builder@yahoogroups.com Sent: Saturday, May 29, 2010 07:29 Subject: Re: [Repeater-Builder] 220 duplexers Well I don't know how you guys got the idea I am going to leave a bunch of junk on our tower, but that is not the case. Sorry. IF we stay on this tower we will replace the antenna, IF we move, the old tower will be removed. There will not be a next guy. I am simply looking for 220 duplexers for our single 220 antenna that is left there for now... And if all goes as planned, we are very lucky... Stan From: Mike Morris Sent: Saturday, May 29, 2010 12:36 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] 220 duplexers Chucks right on the money. Do the next guy a favor and remove the useless junk from the tower. See this article: http://www.repeater-builder.com/antenna/cracking.html Mike WA6ILQ At 05:42 AM 05/28/10, you wrote: I understand the move and money issue. Be aware that any loose hardware and/or damaged antenna can, and often does, generate noise all on it's own when hit with an RF source - your repeater or some other nearby transmitter. Good luck with the move. And you got very lucky if you land a cell tower location for a good price. Chuck WB2EDV - Original Message - From: Stan To: Repeater-Builder@yahoogroups.com Sent: Friday, May 28, 2010 8:36 AM Subject: Re: [Repeater-Builder] 220 duplexers Hi Chuck, The tower is 150' up and I keep forgetting my binoculars. But I think the elements are simply blown away. The cable appears to be still intact. AND we are expecting to move over to a new Cell Tower location soon and don't want to put a lot of work and money into the current tower. And I shut the 220 repeater down so it will not create any noise. Thanks Stan From: Chuck Kelsey Sent: Friday, May 28, 2010 8:14 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] 220 duplexers I never like the idea of leaving a known bad antenna on a tower. It will eventually become a noise generator. Yes, sometimes you can get away with it, but it's a real gamble. And if there are other services nearby, you could be bothering them and not know it. Chuck WB2EDV - Original Message - From: Stan To: Repeater-Builder@yahoogroups.com Sent: Friday, May 28, 2010 8:04 AM Subject: Re: [Repeater-Builder] 220 duplexers The bad antenna is the Rx antenna. It won't hear beyond about a mile after a heavy wind storm. So swapping is not an option. Stan -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2901 - Release Date: 05/28/10 02:25:00 Emoticon1.gif
Re: [Repeater-Builder] General Electric VHF MVS Series Mobile
John, If you haven't already gotten a response, the flat end is ground, the center is hot and the pointy end is ignition sense. good luck. Jim - Original Message - From: jjhy...@att.net To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2010 19:26 Subject: [Repeater-Builder] General Electric VHF MVS Series Mobile Hi Gang - Just a quick question to see if anyone knows how to power up this mobile to check for functionality without the use of its natural power cable? This unit has 3 prongs aligned with each other and my goal is to fire it up with an external power supply and alligator clips. If, assuming the pointed end of the power plug is facing upward, which prong would be the hot (Positive) and which one to ground / negative? Any advice would be helpful! Thanks in advance and 73s John
Re: [Repeater-Builder] RE: follow up on lightening strike last spring response
Richard (and everyone else), I just uploaded a file called antenna_pix.pdf to the group. Our local group had an antenna that was real noisy when duplexed but worked great otherwise. We spent months trying to fix the issue then decided to replace the antenna. Just goes to show noise issues could be anywhere. I hate tower rats! Jim WA2RJP - Original Message - From: Richard To: Repeater-Builder@yahoogroups.com Sent: Sunday, January 17, 2010 13:47 Subject: [Repeater-Builder] RE: follow up on lightening strike last spring response Sorry if I've been late in posting. First, the antenna and hard line is ok. We've tested that part out and its working. We think ( I ) that we got zapped through a unused phone line which is mounted behind the repeater rack. Yes, we have tested the can's using both a IRL (?sp) and a General Dynamics service monitor. They were taken apart and cleaned and retuned. Everything indicated they were functioning normally. Till we put them back in service. I don't know if they were tested with a dummy load. The technicians made many trips to the site: the technicians worked for the company that we rent the site from. We replaced all of the connectors and only found one that had scorched indications on it, but that was all. I asked if any of you knew how to find out if a can was operational, because all the test equipment that was used indicated they were ok. We finally found a workable solution. We added a fifth can, tuned to the transmit freq. That stoped the crackling noise. Now we're going to replace the can's, and go with a 6 can configuration. this is what was reconmended by the technician. Rich K8JX www.w8usa.org
