what's this antenna for ... (it's a diamond rh77ca)

Samos2

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Oct 5, 2015
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i have been given a diamond rh77ca antenna for my Uniden BCD436HP scanner ... but i'm not sure what it's to be used for. can anyone suggest what types things i'd use it to listen to.
thanks
 

ko6jw_2

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May 18, 2008
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Santa Ynez, CA
It is a 2m/440 MHz dual band amateur antenna. On a scanner it will perform best on 140-174 MHz and 440-470 MHz. It will do poorly on low band. Ok but not optimal for aircraft. Less than optimal on 700/800 MHz.

Very popular scanner antenna. But actually limited outside ham bands.

Better than stock antenna.
 

W5ATX

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Dec 19, 2002
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214
I agree with ko6jw, high-profile excellent 2m/70cm ham antenna designed to transmit on those frequencies, and will receive well on most others with a few nulls here and there. EXCELLENT for train stuff in the 160 MHz area and anything on UHF 440-460, doesn't do so well in the 700-900 mhz range. a company called watson makes an identical antenna (model W-881) that is marketed as a wide-band receive antenna from 25-1900 MHz but in comparison to an old rat shack 800 MHz or remtronix single band antenna it lacks. usually an antenna for a dedicated single band will outperform a multi-band antenna (in most cases). the diamond is worth $10 at a ham fest ;) at the end of the day, that antenna may function well for your application, type of radio, location etc, i'd keep it as a spare. then soon you'll have over 100 scanner antennas in a drawer like me haha.
 
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