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  • Radio antenna tech question

    If a Motorola XTS2500 operating on an encrypted 800MHz system with a long antenna has a green dot on the bottom of the antenna, can a shorter "stubby" antenna with a red dot on the bottom be used if the antenna is also 800Mhz? What is the difference?
    September 11, 2001 - All gave some, some gave all. Never forget -- Never forgive.......... RIP Brothers and Sisters.

  • #2
    Radio Antenna Tech Question

    https://www.commserv.ucsb.edu/facult...rt/xts2500.pdf

    Take a look at the above URL.

    NAF5037
    NAF5042
    NAV5080

    are all isted for that radio. The longer, half-wave antenna could be swapped out for the quater-wave stubby antenna.

    Comment


    • #3
      An 800 MHz antenna is a 800 MHz antenna---------------the only difference is the connector

      MOST manufacturers provide "stubby" antenna's for various applications
      Since some people need to be told by notes in crayon .......Don't PM me with without prior permission. If you can't discuss the situation in the open forum ----it must not be that important

      My new word for the day is FOCUS, when someone irritates you tell them to FOCUS

      Comment


      • #4
        That's what she said...
        Now go home and get your shine box!

        Comment


        • #5
          At my first agency we converted to digital and got tha APX6000 radios. When they arrived they have long ***** antennaes on them. My agnecy opted for the "stubby" antennae. When we did, we learned that when we hit the red emergency button with the long antennae, dispatch was provided with our location on a map, as the antennae had a built in GPS module of some sort. When we switched the small antennae, we lost that "perk".

          Not sure if the radio in question here has that fucntionality and if it's a concern for your agency, but I thought I would chime in.
          Last edited by BaylorBearSW; 08-10-2014, 05:28 PM.
          "To hell with a supervisor, men follow a leader" -Texas Ranger Captain Allee

          "Regard your soldiers as your children, and they will follow you into the deepest valleys; look on them as your own beloved sons, and they will stand by you even unto death."
          -Sun Tzu

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          • #6
            Should work fine. I use the same radio in my county. If I am in the south end (close to the Main SO and the repeater) I keep the stubby on it. If I work the north end, I switch to the longer antenna. Seems to get out better.

            Comment


            • #7
              Thanks for all the responses.
              September 11, 2001 - All gave some, some gave all. Never forget -- Never forgive.......... RIP Brothers and Sisters.

              Comment


              • #8
                Funny you bring this up...

                we just switched over to APX6000 and it came with the long antenna and a stubby on the shoulder mic.

                one of the officers got the short version of the long antenna (not a stubby, but slightly shorter) that has the GPS and everything built in.

                It seems to work fine, but the person in charge of doing the radios flipped his lid when he went and got a shorter stubby.

                myself and the radio person in charge understand radios and know the differences between a short and a long antenna (quarter and half wave antennas) you will loose some strength (tx and rx) with the shorter, but it should work well.

                so far the guy with the stubby has been testing it, and he really likes it. issue became to reality because our radios are on our vests and the long antenna is extremely annoying.

                but yes, there is a specific one that has the GPS antenna built into it. it will say 700-800 GPS on it. I don't see red or blue dots on our brand spanking new APX6000s

                The big issue is that at places where you might not get great coverage, the short antenna MIGHT work. and the concern is, do you wanna go out in the field with equipment that MIGHT work? (he uses the example of owning a gun that MIGHT work) no risks need to be taken.

                Comment


                • #9
                  The BSO radio shop didn't want deputies to use the short antenna on the MTS portable, only on the mic. If you used the short antenna, you sometimes got the "busy" beep or would hear nothing while sitting in the car IF you didn't have the shoulder mic attached. That was only in the area where there was no close repeater. I just wanted to know if the XTS radio was any different, that is all.
                  September 11, 2001 - All gave some, some gave all. Never forget -- Never forgive.......... RIP Brothers and Sisters.

                  Comment

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