Motorola MCS 2000 Service Instructions

68P81083C20-D December 6, 2004
Radio Tuning Procedure: Tuning Procedure 6-5
1. From the SERVICE menu, press F2 to select TRANSMITTER alignment.
2. Press F9 to select CURRENT LIMIT. Use the UP/DOWN arrow keys to set the softpot to zero
(63 for UHF1 100 W and UHF2 40 W). Press F8 to program the new value and press F10 to
return to the TRANSMITTER alignment menu.
3. Press F3 to select the TRANSMIT POWER softpot. The screen will indicate the transmit test
frequencies to be used.
4. Press F6 to key the radio, and use the UP/DOWN arrow keys to adjust the transmit power per
the value shown in Table 6-2.
5. Press F6 to dekey the radio, and then press F8 to program the value. Press ENTER to select
next softpot frequency.
6. Repeat steps 4 and 5 for the remaining test frequencies.
7. Press F10 to return to the TRANSMIT menu.
Transmit Current Limit
NOTE: After Power tuning, measure and note the DC current to the radio on each channel in the high
power level. These values are needed for the Current Limit tuning.
On all Models except for UHF 40W and 110W, larger Current Limit Softpot values (i.e.: 63)
yield increased cutback that results in lower power. For the UHF 40W and 110W radios,
smaller Current Limit Softpot values (ie:0) yield increased cutback (lower power).
1. Press F9 to select the Current Limit Softpot Tuning menu. The screen will indicate the trans-
mit test frequencies to be used.
2. Select the frequency with the highest DC current drain as measured during the power tuning
procedure.
800 MHz 35W 35 Watts 806-870 MHz 37.5-39.5 Watts for test freqs.
F1-F3
33-34.5 Watts for test freqs. F4-
F7
17.5 Watts 806-870 MHz 19-20.5 Watts
8.75 Watts 806-870 MHz 9-10 Watts
800 MHz 15W 15 Watts 806-870 MHz 16-18 Watts
7.5 Watts 806-870 MHz 8-9.5 Watts
3.75 Watts 806-870 MHz 4-5 Watts
900 MHz 30W 15 Watts 896-941 MHz 16.5-18 Watts
30 Watts 896-941 MHz 33-34.5 Watts
6.0 Watts 896-941 MHz 8-9 Watts
900 MHz 12W 13.5 Watts 896-941 MHz 13.5-15.5 Watts
6.0 Watts 896-941 MHz 6.5-8 Watts
3.5 Watts 896-941 MHz 3-4 Watts
Radio Model
Power
Level
Test
Frequency
Range
Transmit Power Setting
Table 6-2. Transmit Power Setting

Motorola MCS 2000 Specifications

General

Brand	Motorola
Model	MCS 2000
Category	Radio
Language	English