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Scanner / Receiver Antennas - For discussion of any type of receiving antenna used by a scanner or receiver base, mobile or handheld.

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Old 04-21-2017, 12:29 AM
Join Date: Sep 2012
Location: Ga
Posts: 40
Default tram 1115

I have uniden bc355n installed in my truck. this 1/4 wave antenna is 20.5 inches. i listen to airbands, 2 meter ham and 150-165 vhf range. Can i leave it uncut or what would be the best length in middle to best suit the best frequency range.
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Old 04-21-2017, 3:50 AM
Join Date: Sep 2006
Location: Stockholm, Sweden
Posts: 1,453

It's cut for 2m HAM band now and would be correct if you had a ham rig and wanted to transmit on 2m.

If you cut it down to 18.5 it will be tuned to 160MHz.

I wouldn't change anything. If you want to improve reception you could try a 5/8 2m HAM antenna.

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Old 04-21-2017, 10:22 AM
mmckenna's Avatar
Join Date: Jul 2005
Location: WTVLCA01DS0
Posts: 8,636

Yeah, don't change anything. 20.5 inches should be resonate somewhere just below 140MHz. That's pretty dang close to the middle of the band you are listening to.

Anyway, it's unlikely you'd notice any difference by trimming the whip. If anything, tune it for where you transmit (if you do), otherwise, just leave it as is.

Last edited by mmckenna; 04-21-2017 at 10:32 AM..
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