The HTX-100 used a 3 KHz IF Filter.
The Hr radio used the 5KHz IF Filter.
This is because the Hr and Lincoln radios where all mode.
The HTX-100 was CW/USB only so there was no problem with the narrow filter.
73
Jeff
Exactly, and the HR-2600 was even worse because of the provision of FM and repeater capability. It had a single 15 kHz wide filter and to accommodate SSB and CW at the required BFO offset, the desired signal was so deep in the skirt that it was highly attenuated. As I would tune across 10m I would hear a very loud signal peaking high on the meter and as I would tune it in, the signal strength would diminish. On weak stations it was even worse. I finally gave up and acquired an FT-890 and ran it mobile with much better results.
I would have to look hard at the design of any of these "export" rigs before I would decide to spend my money on one. In the mean time, there are relatively small amateur band rigs that meet my needs. My recommendation is to get a rig tailored for each service you plan to operate on.