My GMRS antenna has now failed twice - each time while on the trailer out to or back from Moab. I actually removed it for the trip out this year, but that was an unnecessary pain. I left it on for the return trip, and yeah - bye bye.
The failed antenna was a high-quality Laird unit, and at up over $100 I was not going to replace it for a second time.
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So I did some research looking for a heavy duty GMRS antenna - something more along the lines of the FireStick I have used in the past for the CB. Midland has recently released what they call their Bull Bar series, and after reading many good reviews I picked up their 28", 3db version with a spring. Here it is:
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At about $200, it's also not cheap. But I do expect it to last - and it fits my Yellow and Black color scheme perfectly! Here it is installed.
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I took some time to adjust the mount to make sure it lined up well with the CB antenna on the opposite side, because, well, NashvilleTJ...
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Everything I've read about GMRS confirms that coiling the coax will not impact the SWR - and neither will shortening the coax. But rather than having an additional loop of cable under the dash, I shortened the coax and soldered on a new connector.
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Midland states that the Bull Bar Antennas come pre-tuned for the Midland GMRS radios, and in fact this antenna is not tunable. I don't understand this as I always thought that the SWR was at least partly dependent on the mounting location, and anything nearby on the rig.
So I threw my GMRS SWR meter on there and got a reading of 1.6. Not great, as I was able to get a much better 1.1 - 1.2 SWR with the tunable Laird. But as I understand it, anything under 2.0 is OK for GMRS, with the target of 1.5 for a 1/4 wave antenna like this one.
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'Course, the proof of the signal will be in the signaling, and I'll get out and test it soon.
I'd appreciate input from our radio experts out there as to whether my assumptions are correct,