jfranke3 Posted October 5, 2022 Report Share Posted October 5, 2022 I’m selling a Motorola GR1225 45 watt repeater with built in duplexer. It’s programmed for GMRS frequencies. Prefer meet up in Florida but can get a quote to ship. Asking $525 obo. I will be at the Melbourne Ham Fest this Saturday 10/8 Channel 1 462.625 PL 1B 107.2 Channel 2 462.600 PL 1B 107.2 Quote Link to comment Share on other sites More sharing options...
Cpch64 Posted October 5, 2022 Report Share Posted October 5, 2022 If i may be so bold to ask a question. If the repeater says 45 watts output with built in duplexer do you actually get the full 45 watt output. The reason i ask from what I see on other repeater setups you take a hit to the output due to the duplexer. Sorry if this is a newb question but curious. Thanks, Quote Link to comment Share on other sites More sharing options...
BoxCar Posted October 5, 2022 Report Share Posted October 5, 2022 Good question but for commercial/public safety grade repeaters the output level is at the antenna connection. These heavy duty units are also built to put out their rated power for hours at a time unlike the hobbyist grade units like the Retevis. Sshannon 1 Quote Link to comment Share on other sites More sharing options...
gortex2 Posted October 5, 2022 Report Share Posted October 5, 2022 The GR1225 Repeater used at 45 watts will most likely last less than a year. Have repaired, installed and removed many over my years. The 45 watt rating is "pre" duplexer meaning from the transmitter port on the radio. Depending on the duplexer you could see almost 3db of loss (cheap china stuff) which would effectively leave 20 watts out. The GR1225 runs very good if you turn it down to 25 watts (with a 45 watt PA), and with a good quality duplexer you can expect 15-20 watts out to the antenna port. A quality duplexer such as the Sinclair is spec'd at 1.2db of loss. Add in a jumper cable and your at about 16-18 watts. The GR1225 is a great home repeater but was never intended for long conversations and continuous service like the MTR or Quantar. I run 4 different sites with the GR1225 cut back to 25 watts and have been on the air for years. Radioguy7268 1 Quote Link to comment Share on other sites More sharing options...
WRMZ886 Posted October 16, 2022 Report Share Posted October 16, 2022 On 10/5/2022 at 12:47 PM, jfranke3 said: I’m selling a Motorola GR1225 45 watt repeater with built in duplexer. It’s programmed for GMRS frequencies. Prefer meet up in Florida but can get a quote to ship. Asking $525 obo. I will be at the Melbourne Ham Fest this Saturday 10/8 Channel 1 462.625 PL 1B 107.2 Channel 2 462.600 PL 1B 107.2 HI BUDDY HERE , DO YOU STILL HAVE THE REPEATER? I AM INTERESTANT IN IT. On 10/5/2022 at 12:47 PM, jfranke3 said: Quote Link to comment Share on other sites More sharing options...
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