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AdmiralCochrane

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Everything posted by AdmiralCochrane

  1. How many GMRS licenses and how many active members here? This site is a microscopic fraction of the GMRS world
  2. There are cheap foreign made amps that cost WAY less than a GOOD mobile unit. But I agree that the UT-72 by itself is the absolute best investment in this scheme. I advise against the amp regardless of its price. The relatively minor increase in clarity of signal to those you transmit to will be of no really use.
  3. Locally, I find more of that from GMRS only licensees that are wannabe hams vs the actual dual licensees
  4. With a few exceptions, ham does not have assigned channels.
  5. The famous bovine derivative of the Schwarzchild metric
  6. Not linked, but someone here reported that there was a locality where one licensee had 5 or 6 GMRS repeater channels tied up. There are such people and if it is allowed, somebody somewhere WILL do it. Ham doesn't have that problem partly because ham has repeater coordination. No such coordination scheme exists for GMRS nor can under current FCC regs.
  7. Without some kind of repeater coordination like ham does, uncontrolled, unrestricted GMRS repeater linking will eventually become a problem. The only saving grace is the practical fars. But once every repeater channel has a linked repeater on a 199 1/2 ft tower ... Be careful what you wish for.
  8. Propagation tends to be across the ground plane. Other than that, there isn't much to consider. In general the outer shielded part of the coax and radio are generally electrically connected to the entire metal part of the vehicle body. An unconnected piece of metal near the antenna may affect it in a minor way, but not likely to be measurable or significantly measurable. It will be generally more practical to make sure the tent rack has strong electrical continuity to the body of the Jeep and each section likewise carries continuity to where the antenna is mounted. Don't over think this, it's easy and simple.
  9. GMRS is 65cm. You are correct, there is no 2m GMRS That comment referred to ham nets, not GMRS GMRS is intended for direct personal use, not an alternate ham band. Something closer to CB
  10. Another way to put it is you can buy more range/distance with height than you can with power.
  11. You left important steps out: 1-b your radio stops receiving 8-9 your radio returns to receiving 10- corrected. After a brief waiting period, the repeater stops sending what it hears on the sender's input frequency; the "tail" Other comment: the "repeater" is not a parrot, it is resending your transmission in live time on the output frequency
  12. Never heard of that brand, but I looked them up and it looks like they have a lot of good product. Limited amount of 13.8v product though.
  13. I have converted several computer server 12v power supplies. Lots of power, budget price. Some hams have worried about rf noise, but no one has demonstrated problems with the server power supplies in practice. You do have to remove a resistor, find a particular potentiometer and tweek the output voltage to 13.7 and put some kind of connector lug on the output terminals.
  14. It's called a channel and PL tone You don't have to say anything.
  15. Yes, on 65cm, actual contact is line of sight. Power just makes it louder/clearer.
  16. Had to check my antenna. Nope, just 12 inches. The skinny 18 incher is in a box somewhere. Not sure I'm ready to bring my bullwanger out in public, I'm kinda shy.
  17. There is no single answer. There is no simple answer. There is no magic bullet. I want the red dot sight with image stabilization.
  18. with proximity door locks they don't even have to touch the remote, duh
  19. You did it now. That really strange man is likely to comment. (Just an internet rumor.)
  20. I didn't think so. That really confused me.
  21. just a minor decorum note - just ham, not H.A.M. Tech license is super easy and General is worth an additional few minutes of study. May subjects and questions overlap on the tests if you are lucky. You can easily do this.
  22. I only hear GMRS congestion complaints regarding repeaters overlapping. Maybe FCC should have set a higher bar for GMRS repeaters, but that genie has long since been released from its bottle - the tooth paste ain't goin' back in the tube.
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