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  1. emorth

    Standardized comms

    Roger that 🤓
  2. emorth

    Standardized comms

    Here is a more complete chart.
  3. emorth

    Standardized comms

    This is the chart that shows the common CLCC and GMRS freqs & channels along with the coded squelch for the Baofeng type of radios and the Midland "Blister Pack" type of radios. Same code, just different numbers. Like 6:00 PM and 1800 hours. The Baofeng tone/code is the actual standard...
  4. emorth

    Standardized comms

    Ok 👍 What do you do if someone in the group isn’t a ham?
  5. emorth

    Standardized comms

    146.46 MHz is an Amateur Radio (Ham) frequency. If someone doesn’t have a Ham license it is illegal for them to transmit on that frequency.
  6. emorth

    Standardized comms

    @JohnVee thanks for the clarification. You are correct. The CLCC Motorola radios were previously in commercial/government/public safety applications. You will never find this type of Motorola radio in a blister pack at Walmart. New, they are programmed at the Motorola factory to meet the FCC...
  7. emorth

    Standardized comms

    Here is my suggestion to the CLCC guys regarding the GMRS channel plan. No feedback yet. ONSC standardized comms - https://forum.ih8mud.com/threads/onsc-standardized-comms.1276700/ Post #15 Thoughts???
  8. emorth

    Standardized comms

    Here is a coverage map from the Shadowlands Campground. This is based on a GMRS freq with a 20 Watt transmitter and an antenna 10 feet in the air. Ideally, you want a base station radio at the operations center in the campground and a repeater on top of a mountain somewhere. If you send me...
  9. emorth

    Standardized comms

    👍 CLCC has 12 ”loaner” radios for events.
  10. emorth

    Standardized comms

    Send me a map of the possible locations where you might put the repeater and the general area you want to cover. I will do plots to see which site has the best coverage.
  11. emorth

    Standardized comms

    OK, so at the risk of exposing the fact that I am a techno-nerd-geek, here is a different view of the advantage of a repeater. This is an Google satellite view of the Cove where we hold the Fall Crawl. We camped at camp VI. This is a propagation map of the coverage area of a base station...
  12. emorth

    Standardized comms

    Yep. Sorry, my chart is old and needs to be updated. Here is a detailed chart of the freqs. General Mobile Radio Service - Wikipedia - https://en.wikipedia.org/wiki/General_Mobile_Radio_Service
  13. emorth

    Standardized comms

    Clueless people were buying them and just putting in random numbers for the frequency and interfering with critical comms systems. We had tourists in the DC Mall talking about where to get lunch on an FBI frequency. 🤯
  14. emorth

    Standardized comms

    They are now FCC approved. The fine print at the bottom of the ad. “Harmful interference” means don’t transmit on freqs you are not supposed/licensed to transmit on. Safety Information : This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device...
  15. emorth

    Standardized comms

    @Comet I will put a parts list together for you. Give me a couple of days. @SeanLX and @GLTHFJ60 I would recommend programing all of the repeaters with the same frequencies. That way they are usable by both clubs when we get together for an event. Also, we could put repeaters from both clubs on...
  16. emorth

    Standardized comms

    GMRS 50 Watt frequencies. 462.xxx simplex and repeater transmit 467.xxx repeater receive
  17. emorth

    Standardized comms

    Yes, they are GMRS freqs. The 462 block is for simplex and repeater output/transmit, the 467 block is for repeater input/receive. The 5 MHz between the two blocks is because repeaters need to have some separation between transmit & receive. The bandwidth of the duplexer is very narrow, that's...
  18. emorth

    Standardized comms

    I can program the radios and tune the duplexer. No problem.
  19. emorth

    Standardized comms

    @Comet how can I help?
  20. emorth

    Standardized comms

    Yep. RSS software to program it and a RIB (Radio Interface Box) between the radio and computer. The duplexer also has to be tuned to the operating frequencies. This is a manual process. 6 tuned cavities have to be tuned using a signal generator and a spectrum analyzer. The duplexer enables...
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