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Borage257

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Everything posted by Borage257

  1. Borage257
    Most UV5Rs can be opened up, but if you want something to transmit on GMRS with out "modification" get a GMRS radio. I have the UV5G. It works well enough for what it is. Definitely NOT waterproof.
  2. Borage257
    The power supply was receiving power while I was checking for any interference originating from it. I also checked the ambient environment with the power supply unplugged.
  3. Borage257
    No problem, I'm fairly new to this and appreciate y'all taking time to educate. I've just finished running a radio vfo scan from 160.000 MHz to 170.000 MHz and didn't find anything that opened the squelch that wasn't already present in the immediate environment with the chip being unpowered.
  4. Borage257
    So use another radio scanning while the chip is receiving power? The spec sheet states it has a "150-kHz Fixed-frequency internal oscillator". Would reconfiguring the power in put and out put lead to be wrapped in ferrite chokes mitigate any RF noise? I haven't noticed any noise on 462-467 MHz range. EDIT: included ship spec sheet https://www.ti.com/lit/ds/symlink/lm2596.pdf?ts=1656424458434
  5. Borage257
    Baofeng et al has several battery pack/power options on the market. The case I used was marketed as an AA battery pack. I sure would like to see another manufacturer come out with an affordable, modular system like the UV5R enjoys. Maybe there is one and I'm just not aware of it. in any case it was fun to tinker with.
  6. Borage257
    I discovered some cheap Chinese radios have subpar battery replacers for "mobile' use. The plug in power supply provides enough volts and amps for receiving, but not enough amps for transmitting. After poking around I found some guys using the LM2596 DC-DC buck/boost chip to get enough power to run their HTs in a mobile or base station role. As long as the power source supplying the chip pushes more than 1.5Amps the HT will transmit. I set my chip for 8.3V and wired it to female(?) 5.5mm barrel plug for greater flexibility.
  7. Borage257
    I have one of the GMRS antennas hooked up to my base station. The antenna is ziptied to fiberglass driveway marker which is hose clamped to a pcv pipe. So far its been working well. I may get another one for back up.
  8. Borage257
    I am fairly new to this, but here is what I have come to understand. 1. I've heard good things about the Tram Brownings, but don't know much more about them. 2. You can, but wont be happy. Radio coax is usually 50ohms, where as TV coax is 75ohms. It will work, but not well at all. 3. For 100 ft runs you want the lowest loss cable you can afford. RG-58 is good for short runs, RG-8X has less loss, LMR-400 has even less loss. https://qrznow.com/coax-cable-loss/
  9. Borage257
    There's a guy in Hugo, OK I talk to sometimes on the Longview and Daingerfield repeaters. Try hitting Brookston Z9 or Paris 700. What radio are you using? If you can get your antenna up higher.
  10. Borage257
    I'll generally check the comments on the repeater. If they ask for a heads up or email, ill send it. Sometimes the owners like to keep a log as some hams might.
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