I have both radios, as well. The reception in the 700 & 800 bands on both is exceptionally good. Using the same antenna you mentioned, I get excellent reception even in the 150mhz band. Sounds like a location issue.
I have a PRO-197 and it's very sensitive, but it often gets wiped out on 800 MHz by cell towers and Nextel. Turning the attenuator on is often the only thing that works. Also true on VHF where I guess FM broadcast is the culprit. It's weird to hear a weak signal, turn on the 20 dB attenuator and it gets stronger