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jdcmp5

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jdcmp5 last won the day on November 24 2020

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  1. From my experience I agree 100% I have a Fumei duplexer now tuned at -90 to -95 dB and with good 7/8 heliax it transmits almost exactly what the theoretical map say 50W at 55’ in my location will cover. It’s so good that now I just got a Decibel Products BpBR and I’m afraid the losses will be higher than the China flat pack.
  2. FR4000 up and running fine as far as the repeater itself. I can’t hear any audio from the onboard speaker or the internal speaker. I think I’ve turned off 5tone as the instructions indicate if you want to listen from the repeater. I’m sure the front panel speaker mute isn’t on... any idea? RX and TX work great, just can’t hear the repeater in the shop. Thanks!
  3. I tried it. It’s exactly what WRAK968 said. -60dB would be Max with the noise floor, and the sweep is real slow. I’ve tuned lots of similar devices, I took mine over to friend with a service monitor to see how close I was. Best I could do was about -60 on 466.52 vs the 467.575 I was tuning for. If you nailed it you would be lucky. My repeater had RX desense because I tried the NanoVNA, now it’s a 20 mile repeater once I put the Amazon duplexer on the service monitor.
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