Mark in Palstar Engineering is submitting this response:
"The LA-1K's readout may be different than the radio display frequency because:
Radios show the "carrier" frequency in USB or LSB. On side band, the carrier is not transmitted, so only the upper or lower side band frequencies will be present.
These will be higher on USB and lower on LSB than the "carrier" frequency.
Example:
If you transmit a 1kHz tone on USB (radio at 14.250), the output will be 14.251
14.250 + .001 (upper side band) = 14.251
on LSB it would be 14.249.
Transmitting in AM should show the actual carrier frequency.
