User's Manual

13-8 MTR3000 Programming and Tuning: Tuning Setup (Wireline)
6. Adjust the softpot value until the best equalization is achieved across line two of the J6
Wireline backplane connector terminals. Best equalization is achieved when the far side of
the Wireline cable measures a flat response across the upper region of the audio spectrum.
Compare the response at 2800 Hz with the response measured at 1000 Hz. The values
should be approximately equal.
7. Click “Write” to save the new tuned softpot value into the radio’s codeplug.
Note
It is imperative that the load the Wireline board is driving, matches that of the Wireline
board’s source impedance setting noted in the Tuner environment. Optimally, it is
recommended to use the actual load which is used during normal operation of the radio.
Line 2
APPLICANT: MOTOROLA
EQUIPMENT TYPE: ABZ89FC3797
EXHIBIT D1-4