Interestingly, I purchased the Pryme RD9SMA a couple weeks ago, which generally does well in this spectrum from what I've read & how it's listed, but the Uniden duckie that came with the 396T picks up both 157 & 162 frequencies at least 1-2 bars stronger than the RD9SMA.
I was very surprised to say the least. Do you think the Diamond RH77CA would be worth it? As it's advertised frequencies are very similar to the RD9SMA.