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Ronster

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  1. Problem resolved. Configuration changes in both RX and TX CDM750 per comments here and another site and a tweak in SimpleUSB.Conf. Fortunately, I just procured a copy of The CPS software. After a reboot and and run of repeaterfinder.sh, I’m now listed as repeater 22802. Now, I just need to figure how to manage my node! Thanks everyone.
  2. I’ve posted a couple or three questions here about about my repeater. Members have help me along with my collection of equipment. Thanks everyone for that help. Now, I have constructed a repeater using the 2 - CDM750’s. One for Rx only at 467.xxx and one for tx only at 462.xxx. These radios are cabled to a Motorola Celwave duplexer using low-low 142 cabling. I am using a RIM-Maxtrac RM cabled to a Pi running the GMRS software. With all of that being said, it will not pass the first bit of data, voice, or even be heard from the antenna side. I see the TX light on the TX radio and the RX light on the RX radio as I key my HT, but NO voice. Here’s the part I do not understand. I CAN hear any call from my antenna on my RX CDM750 as clear as a bell if a have the volume off of zero and I can TX to a friend a mile or so away by using the mic plugged into the TX CDM750 and hear myself on the RX radio! What am I doing wrong? I’m just before calling it quits and throwing in the towel. Any ideas?? Thanks, Ron, WRPJ594
  3. Okay, I have my 2 Motorola CDM750’s cable to my Duplexer. My question concerns the ID-O-Magic controller connected to both CDM750 via their 16 pin interfaces and the raspberry pi running the MyGMRS software. Do I connect my pi running the software using the Pi USB port and the ID-O-Matic mini USB? I’m confused passing data between these two devices. if I can’t use the ID-O-Matic, then must I have a duplex cable built to handle this? Thanks
  4. I’ve looked at so many repeaters and duplexers. The question should be referring to the MTR2000 repeater at Used-Radios.com
  5. I’m seriously considering buying the MTR2000 repeater from Used-Radios and I would like to complete a programming sheet, but I really don’t know what I should have programmed other than a primary rx/tx frequency and pl’s. I’m using 2 CDM750 radio’s that are 4 channel, but they can be reprogrammed if needed in the future. Any suggestions or recommendations? Ron
  6. Celwave RFS Motorola UHF Duplexer 0185417U05 440-470 Mhz Quantar MTR2000 from Used-Radios.Com
  7. I would appreciate any insight concerning the MTR2000 duplexer. After considering the EMR 653160 MC, it seems there is confusion as to the frequencies it can handle. At any rate, I know so very little about duplexers and this unit appears to be a 250 wattage rating, which is an overkill but the price is $525. This is in my price range I projected for this repeater build. As I have stated in an earlier post, I will be using CDM750’s at 25 watts. I am more concerned with trying to get good duplexer rather than a cheap duplexer without breaking the bank. Comments appreciated! Ron, WRPJ594, K0AAJ
  8. Yes, I have fans on all my radios and yes, running 25w on a 40w capable would definitely help. My present feedline is RG-213U. I may replace it later if it doesn’t work well, but my tower climber won’t be available until the end of April. My climbing days are over even at 43’. I run a couple 0.5w Shari’s behind Pi’s, but that’s about it. I was looking at the Openrepeater Pi based controller, but I haven’t ordered it yet. Thank you for your insight! Ron
  9. I''m trying to put together a repeater using the CDM750 radios I have. My plan is to use the 25 watt for RX and the 40 watt for TX. The duplexer I'm looking at is the EMR 653160 MC. The frequency I'm thinking is Rx at 462.550 and Tx 467.550. My antenna is a Diamond X700 dual band mounted on my 43' tower with a 380' asl. I actually never planned to use this antenna but it is almost flat across the 462-470 Mhz range. with a forward loss of almost nothing. Since this is my first GMRS repeater, I plan the range to be around 25 miles hopefully. I would like opinions of experience GMRS repeater builders on this arrangement.
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