DiamondDiamond (Original) RH77CA 144/440 MHz. Dual-Band High Gain Handheld Antenna Rx: 120~900 MHz. (Gain: 440 Mhz. 2.15 dBi, Max Power: 10 Watts, Length: 15") BNC

I was skeptical that a new antenna would help. I was picking up very little on my scanner. I've tried another antenna besides the one that came with my Whistler TRX-1 but this new antenna really made a difference. I'm picking up so many more calls that I ever have. This one really worked for me. I really recommend it!

Pretty much this is the most highly recommended "upgrade antenna" on forums like Radioreference.com, and for good reason--solid performer, especially for VHF and UHF monitoring for scanners and (of course) use as an improved duck for amateur radio use. (Verified that it does peak around 146MHz and 440MHz with an antenna analyzer--yes, it's designed for ham use, but works quite well as a scanner antenna.)The one area where it's ever so slightly lacking (compared to some aftermarket antennas) is 700MHz/800MHz/900MHz bands, but again the antenna isn't quite designed for this (and honestly even though it's not designed for it, it STILL tends to work better than factory ducks in my experience). That said, it does well for about 90% of the scanning and amateur radio public would use it for. (Folks monitoring UHF, as well as MURS and VHF business bands as well as "low airband" and rail monitoring will be happy with this.)

I have a Uniden BC125AT and was looking for a great antenna for my scanner. I found this one that picks up frequencies up to 45 miles away, and I was blown away. It works great and picks up a lot of traffic. If you have a ham radio or a scanner, then this is the antenna for you.

I was getting this for my Pro 668 digital scanner and I'm trying to monitor high 800mhz pro 25 simulcast system. This is better than the stock antenna but doesn't work better than a generic rubber ducky I had from a previous radio. It is very well made and would probably work well for conventional systems and non simulcast setups on digital so keep this in mind if ordering to monitor a setup like mine. Simulcast here is very touchy and you can move or turn the radio a small amount and improve the quality or turn it to no signal or a garbled mess.Not horribly upset as it was pretty reasonable price and only one way to know for sure if it would work for me.

Bought this antenna for my Uniden BC125AT after reading reviews of other buyers recommending to replace the antenna that comes with the scanner. I can normally pick up traffic 15-20 miles away as long as it’s airborne at a decent altitude, 8-10,000ft or higher and have even heard comms from a C-130 on the departure frequency at 23 miles from my location!! I can pick up the tower frequency for my local airport while I’m 1 to 1-1/2 miles away in my car. Great antenna, worth the buy if you have a handheld scanner that you use at your local municipal or international airport!

My son wanted this antenna for his train scanner. He said that he now has a greater range and stronger signal.

Amazing improvement to the Uniden Bearcat SBS100. I know many others are talking about range.Living in suburban Washington, DC, range is not an issue for me (everyone is bang on top of one another).That said, the improvement was one of CLARITY.I am the son of a career Marine, and served in the Corps myself, so my hearing is absolute crap after an entire life in and around loud noises.This antennae VASTLY improves the sound quality to a point I do not even need my hearing aids.All above said, should you have the SBS100, you will need purchase the little $4 adapter to make it fit (illustrated in photo).I wish I could tell you what the adapter is called, though I simply pulled it out of my tool box and have absolutely no recollection of where, or when, I purchased it.I simply read other reviews stating the same re: the SBS100 and the adapter is four bucks.

It replaced my handheld scanner original antenna.