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Showing content with the highest reputation on 12/21/19 in Posts

  1. BoxCar

    Welcome!

    I'm too old to learn everything but welcome to the wacky world of GMRS users.
    1 point
  2. I have one of these units but I haven't had the chance to throw them on the service monitor yet. Danny from BuyTwoWayRadios said they selected this model because it wasn't a radio-on-a-chip design, so the performance should be better than a lot of the CCR's. I haven't been able to independently verify that yet. The radio does work, I programmed it for a repeater a couple miles away and I was able to talk between my Kenwood NX-5300 and this radio side-by-side via the repeater. So even with the obvious desense, they still worked. That's about the extent of my testing aside from scanning around the FRS/GMRS frequencies to see what else I pick up (which isn't much as this area is very quiet now). myGMRS is also selling these on our shop, and we're working on reseller arrangements with several big names that are in the final stages. The goal is to have a GMRS-friendly shop where you can find type-accepted equipment and some non-GMRS equipment as well, like Part 90 and Amateur equipment. But if you're new to GMRS and have no idea what equipment you can buy, we'll have a clearly-marked GMRS section so you can buy something legal without worry.
    1 point
  3. sierramadre

    Hi from Lancaster

    Hi ko66, I'm right over the mountains just outside Pasadena. I just got a license and so am learning things as well. I ended up with a Btech GMRS-V1.
    1 point
  4. berkinet

    Call sign ID?

    In fact, the only identification you are required to give is your own call-sign. How, or even whether, you identify the called party, if there even is one (CQ, CQ, CQ...), is up to you. Since you usually identify your own station at the start of a transmission, your call-sign should be given before any other information. Hams commonly call other stations by call-sign and on GMRS it is usually by name. But that is by custom, not rule. Note, for ham radio the following applies: § 97.119 Station identification. (a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its transmitting channel at the end of each communication, and at least every 10 minutes during a communication, For GMRS it is: § 95.1751 GMRS station identification. Each GMRS station must be identified by transmission of its FCC-assigned call sign at the end of transmissions and at periodic intervals during transmissions Note that neither service requires ID at the start of a transmission.
    1 point
  5. We are using Asterisk as the server (running on a raspberry pi 3) and the RTCM made by micro-node. Cheaper hardware solutions vs the RTCM are available but require other configuration. I have not used any of the other hardware so I wont touch on that. I chose the RTCM for its single unit design and application specific properties. The interfacing with the RTCM is rather simple, I went with the MTR2000 repeater for reliability, full duty cycle and used market availability. Our group hosts its own local node server (Asterisk running on a raspberry pi 3) with 6 repeaters connected to it. This local node also allows us access to the MyGMRS national linking network hosted by the owner of this site. By entering commands in Asterisk or using DTMF, links to other systems can be connected or disconnected on the fly. Things like usage counters and the visual map show links with red lines as well as what site is transmitting by changing its marker from green to red, all of this in real time. Its not as hard as it sounds, Rich from MyGMRS was a huge help, you can also find a linking thread in the private section here. Along the way I found a company that was able to build a custom cable for interfacing the MTR2000 with the RTCM, it provides a reliable solution that's repeatable and works flawless. The MTR2000 repeater can be configured to work with the RTCM rather simply using the repeaters wire-line card to handle the audio and the 96 pin J5 connector to pull ctcss, core, ptt and power. We are using the RTCM and MTR at 6 sites with a stand alone MTR at a 7th and could not be happier. These machines are worth every penny, its not 2 mobiles in a box its a true full duty cycle, commercial grade repeater. Due to the simplicity I have several more RTCM / MRT2000 combos ready to go I just need to fined a few more tower sites with internet. Hope this answers a few questions.
    1 point
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