Why do Galaxy radios drift

[JesseJamesDallas]

Some do, and some don't...They are "Hit n miss"...Galaxy's I have had that had ssb, I never noticed any drifting, but then again I really don't get on ssb that much in the mobile...

[whiteastro]

Some do, and some don't...They are "Hit n miss"...Galaxy's I have had that had ssb, I never noticed any drifting, but then again I really don't get on ssb that much in the mobile...

When I was talking to that guy it was on straight AM and NO ssb involved. I could understand him at all times but his volumn went up and down more than once. I really think he was playing with his Beam & his Omni- Directional Antennas plus maybe his amps. I never heard of Galaxies drifting on AM but it made me wonder and wonder why Galaxies have that reputation. Seems as someone would want to cure that especially when you don't hear it from other radios.