ljh505 Posted November 4, 2020 Report Share Posted November 4, 2020 I have a Midland MXTA26 obtained from the official Midland store on Amazon. It is mounted on a Diamond K400 series trunk lip mount on a small coupe. It resonated around 481 MHz out of the box. Extending the whip as much as possible while still maintaining a grip via the 2 set screws in the whip base, the lowest I can get the resonant point is 478 MHz. It is worse than 1.8:1 SWR at the GMRS 463 MHz frequencies. So I'd say the antenna is cut a bit short at the factory for certain mobile mounting configurations, and there isn't a way to lengthen it. I'm keeping it as a backup antenna. I picked up a tunable (cut to tune) antenna from a different manufacturer from a local land-mobile radio installer, and am using that antenna as primary. The MXTA26 SWR sweep across the UHF band from a RigExpert AA-650 Zoom antenna analyzer and picture of the mounting configuration are attached. Quote Link to comment Share on other sites More sharing options...
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