Tx Current Limit; Table 6-13. Power Supply Voltage Settings - Motorola ASTRO XTL 5000 Basic Service Manual

6-10
4. Left-click the PTT Toggle button to transmit at indicated frequency and record power
measurement with 0.1 W resolution. The green circle will turn red indicating that the radio is
transmitting.
5. Left-click the PTT Toggle button to disable transmit mode.
6. Enter the power measurement with 0.1 W resolution overwriting any value that may reside in
the box from previous tuning.
7. Left-click in the first box of the Measured Power 2 column. The green circle will move to the
left of this box indicating it has become active characterization point.
8. Repeat steps 4-6.
9. Repeat steps 3-8 for the remaining frequencies.
10. Left-click the Program All button to save tuned value.
11. Left-click Close button to close screen and return to the Tuner Main Menu.
6.4.7

Tx Current Limit

NOTE: This alignment is required after replacing (or servicing) the transceiver board or after there
has been a change in the CPS-adjustable power level.
The Tx Current Limit alignment procedure tunes the Tx current-limiting protection. If you increase the
CPS-adjustable power level, then the current limit must be retuned so the radio can achieve the
desired power level. If you decrease the CPS-adjustable power level, the current limit can be retuned
to increase protection. You must first determine the test frequency at which maximum transmit
current occurs and then tune on that test frequency.
NOTE: The antenna port should be terminated with a calibrated power meter through a 30 dB RF
pad.
1. Set the power supply voltage and current limit as per
Band/Power Level
700–800 MHz 35 W/15 W Motorcycle
June 11, 2003

Table 6-13. Power Supply Voltage Settings

Supply Voltage (V)
13.6
Radio Alignment Procedures: Transmitter Alignments
Table 6-13.
Supply Current Limit (A)
15
6881096C73-O