Figure 6-4. Radio Information Screen; Table 6-1. Pa Bias 1 Alignment Rf Power Amplifier Devices - Motorola ASTRO XTL 5000 Basic Service Manual

Radio Alignment Procedures: Radio Information
The alignment screens utilize the "softpot," an analog SOFTware-controlled POTentiometer used for
adjusting all transceiver alignment controls.
Each alignment screen provides the ability to increase or decrease the softpot value by using the
slider or the spin buttons (
scale on the display indicates the minimum, maximum, and proposed value of the softpot.
6.3 Radio Information
Figure 6-4 shows a typical Radio Information screen. All of the data appearing here is informational
and cannot be changed.
6.4 Transmitter Alignments
6.4.1 PA Bias 1 Alignment
NOTE: This alignment is required after replacing (or servicing) the transceiver board. This alignment
is not required for UHF range 2 because for UHF range 2 PA Bias 1 is a fixed value.
The PA Bias 1 alignment procedure adjusts the drain bias current in one of the RF power amplifier
devices.
6871769L01-A
and ), or by entering the new value from the keyboard. A graphical

Figure 6-4. Radio Information Screen

Table 6-1. PA Bias 1 Alignment RF Power Amplifier Devices

Band/Power Level
VHF 50 W/25 W
VHF 100 W
UHF R1 40 W
UHF R1 100 W
UHF R2 45 W
700–800 MHz 35 W
Device
Final
Final1
Final1
Final1
Final1
Final1
6-3
October 30, 2006