It's not necessarily the best but it is a good radio and it allows you to change the mode on the VHF frequencies that are AM air to air. It does a good job of receiving. And for the price, it's a good deal.
One problem it has though is that it will not go above 380 MHz. In a lot of areas, including where I live, that's not a big problem because we have part of the DOD Nationwide TRS here and there is not a lot of use of the frequencies like there used to be above 380 MHz because of the trunk radio system use of them. They had to change things up a few years back but I still occasionally will catch a military aircraft using frequencies above 380 MHz. Between 380 MHz and 399.975 MHz, it is supposed to be getting phased out due to the various radio systems and uses like the one I mentioned. But there are still plenty of areas in the country where it's not a factor or a problem and it would limit you being able to possibly hear some traffic if they use the higher end of what used to be the UHF portion of the military band.
There are much better receivers that work on the military ban but they cost a lot more money too. If you want to handheld, and the 380 MHz plus frequencies don't make any difference, I think the BC125AT would be a great scanner. It does better than most of the Uniden scanners that are made for TrunkTracking or monitoring the TRS's. There are plenty of mobile/base scanners that do great jobs too. The BC780XLT, the BCD796D, and a lot of others are great in the military bands. Of course Uniden doesn't make these anymore and you would have to buy one used. But I would not recommend buying too many of the modern day Uniden scanners like the BCD536HP/BCD436HP. They don't do too good of a job in my experience. My SDS200, Uniden's top dog right now, is done a great job for me but I see a lot of other people saying it doesn't do good for them in the VHF/UHF military band.
When it comes to both the base and handheld scanners that cover the VHF/UHF military aviation frequencies, and if you're looking at Uniden, the radios made prior to about 2012 did a lot better job. Now if you're looking at some of the more sensitive and higher priced scanners like AOR or ICOM, those can do really good jobs as well.
It's kind of a hard question to answer but I do like my BC125AT and it serves me well when I want to grab a handheld and monitor military. That's solely what I use it for. It's not the best but it does do a great job. And the fact that it allows you to change the mode where you need to and set it to AM mode is a big plus. I sometimes hook my BC125AT up to an outside antenna and use it at home. The 500 channels may sound like a lot but I wish it was 1,000 at least. But the 500 channels might suit you perfectly also? I know Wright Patterson has had a lot of traffic and test flights and things like that in the past. I'm guessing that still goes on today? But since you can find the BC-125AT many times, when it goes on sale, for about $89, that is a great price for a great radio that will usually work great for people and most scenarios I believe. And it does have the alpha tags which is something a lot of older scanners might not have. I think all of the scanners I mentioned have the alpha tag capability but there are older scanners, like the Pro 43, that outperform just about any handheld scanner in the military bands. But you only get 200 channels on it. I've compared my Pro 43 with the BC125AT and the 125 held up real decently with some of the weak signals. So I don't think you could go too wrong if you got one and the military traffic you were interested in hearing was in the DHF/UHF military bands unless there were frequencies you wanted to listen to in those last 20 megahertz, AKA the 380 MHz - MHz frequencies.
Brian
COMMSCAN