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Amateur Radio Antennas - For discussion of all amateur band designed antennas and related accoutrements. This includes base, handheld, mobile and repeater usage. For commercial antennas on the amateur bands please use Commercial Radio Antennas below.

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Old 05-03-2017, 9:30 PM
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Default Laird Technologies Model # B4503

will this antenna work for dmr uhf?
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Old 05-03-2017, 10:31 PM
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yes, as long as the antenna is correct for the band. DMR does not require a "special" antenna to work.
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Old 05-03-2017, 10:51 PM
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Quote:
Originally Posted by leawoodcops View Post
will this antenna work for dmr uhf?
I am surprised that someone with a ham license would have to ask. All the antenna does is to serve as a device that allows electrons to move back and forth, thus creating electromagnetic waves. It's up to the transmitter to decide how and when to move those electrons and, so long as the antenna is resonant on the frequency being used the modulation type is irrelevant to the performance of the antenna.
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Old 05-03-2017, 10:58 PM
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The specs for the Laird B4503 state that it is tuned for 450-470 MHz. The amateur radio UHF repeater band is 440-450 MHz. The B4503 might be tunable for amateur radio, but my guess is that it will be a bit too short.
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Old 05-03-2017, 11:53 PM
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thanks
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Old 05-04-2017, 8:13 PM
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Laird 4302 will work.

B4302N - Antenex UHF No Ground Plane 1/2 Wave Model (430-450MHz, 2.4dB Gain, 10 5/8" Straight Whip)
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Old 05-20-2017, 6:19 AM
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It's a good antenna to use if you need GMRS coverage too. Since most ham transmissions will be 447-450, it's just a few MHz low, but still fine for GMRS. But using a 430-450 antenna on GMRS will be 18 MHz high. I use one every day, & it's perfect. But if you have no need for GMRS coverage, just get the 430-450 version.
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