148GTL is acting strange on trans. and rec. Bought it from shop year ago and just now hooked it up. Charlie's Airwaves in Houston had it on a shelf. Clarifier is unlocked (slides 16 KHz, about 8 KHz both ways). Testing it I was told I sounded off freq., had to adjust clarifier. On trans. On receive I have to adjust clarifier to keep from hearing the space aliens on helium. Knob setting for rec. is about 11 o'clock. Knob setting for trans. is almost 1 o'clock. My co-conspirator in test was only a few miles away. Knob Jockeying is not my idea of fun to communicate. Anyone have an idea what can be done to remedy this 148 ailment?