Motorola Cp185 Basic 68007024004 Manual

Radio Programming and Tuning: Transmitter Alignment Options 5-5
5.5.2 Transmit Low Power Tuning
1.Click the Read icon to initiate communication with the radio.
2.Under the Alignment menu, select Tx Power, then select Low 
(Figure 5-4. Tx Low Power Window (Low Power)).
3.Press PTT Toggle. This will key up the radio at the 1st test frequency (F1).
4.Read the Transmit Power from the Service Monitor.
5.Adjust the Low Power Level as shown in Table 5-2 on page 3 by using either the Left/Right 
arrows on the...

5-6Radio Programming and Tuning: Transmitter Alignment Options
5.5.3 Transmit Modulation Tuning
There are 2 variations of Transmit Modulation Tuning, namely 12.5 kHz and 25 kHz.
Table 5-3.  Transmit Modulation Tuning
5.5.3.1  Transmit 12.5 kHz Modulation Tuning
1.Under the Alignment menu, select Tx Modulation, then select Mod. 12.5 kHz 
(Figure 5-5. Tx Modulation 12.5 kHz Window).
2.Press PTT Toggle. This will key up the radio at the F1.
3.Read the Modulation from the Service Monitor.
4.Change the...

Radio Programming and Tuning: Transmitter Alignment Options 5-7
5.5.3.2  Transmit 25 kHz Modulation Tuning
1.Under the Alignment menu, select Tx Modulation, then select Mod. 25 kHz 
(Figure 5-6. Tx Modulation 25 kHz Window).
2.Press PTT Toggle. This will key up the radio at the F1.
3.Read the Modulation from the Service Monitor.
4.Change the modulation setting until the Tx deviation value lies in the range of the 25 kHz channel 
(as shown in Table 5-3.) by using either the Left/Right arrows on the slider...

5-8Radio Programming and Tuning: Receiver Tuning
5.6 Receiver Tuning
There are 4 variations of Receive Squelch Tuning: 12.5 kHz-Band Normal Squelch, 12.5 kHz-Band 
Tight Squelch, 25 kHz-Band Normal Squelch and 25 kHz-Band Tight Squelch.
5.6.1 Receive 12.5 kHz-Band Normal Squelch Tuning
1.Under the Alignment menu, select Rx Squelch, then select Squelch 12.5 kHz-band Normal. 
(Figure 5-7. Rx 12.5 kHz-band Normal Squelch Tuning Window).
2.Apply a RF signal for current frequency point with minimum amplitude,...

Radio Programming and Tuning: Receiver Tuning 5-9
5.6.2 Receive 12.5 kHz-Band Tight Squelch Tuning
1.Under the Alignment menu, select Rx Squelch, then select Squelch 12.5 kHz-band Tight. 
(Figure 5-8. Rx 12.5 kHz-band Tight Squelch Tuning Window).
2.Apply a RF signal for current frequency point with minimum amplitude, -128 dBm (F1 being the 
first). 
3.Set softpot to minimum (0) and adjust the amplitude of RF signal to the range of tight squelch 
tuning (as shown in Table 5-4.) on the test equipment....

5-10Radio Programming and Tuning: Receiver Tuning
5.6.3 Receive 25 kHz-Band Normal Squelch Tuning
1.Under the Alignment menu, select Rx Squelch, then select Squelch 25 kHz-band Normal. 
(Figure 5-9. Rx 25 kHz-band Normal Squelch Tuning Window).
2.Apply a RF signal for current frequency point with minimum amplitude, -128 dBm (F1 being the 
first). 
3.Set softpot to minimum (0) and adjust the amplitude of RF signal to the range of normal squelch 
tuning (as shown in Table 5-4.) on the test equipment....

Radio Programming and Tuning: Receiver Tuning 5-11
5.6.4 Receive 25 kHz-Band Tight Squelch Tuning
1.Under the Alignment menu, select Rx Squelch, then select Squelch 25 kHz-band Tight. 
(Figure 5-10. Rx 25 kHz-band Tight Squelch Tuning Window).
2.Apply a RF signal for current frequency point with minimum amplitude, -128 dBm (F1 being the 
first). 
3.Set softpot to minimum (0) and adjust the amplitude of RF signal to the range of tight squelch 
tuning (as shown in Table 5-4.) on the test equipment....

5-12Radio Programming and Tuning: Utilities
5.7 Utilities
5.7.1 Program Serial No.
The Program Serial No. option under the Utilities heading allow the radio serial number to be 
programmed. However, the serial number of a particular radio can only be programmed if it was 
originally blank. Only New Service Boards have a blank serial number. Once a new serial number is 
programmed into the board, it is NO longer changeable. If the serial number of the radio is not blank, 
access to the screen will be...

Radio Programming and Tuning: Front Panel Feature and Button Configuration Mode 5-13
Press Side Programmable Button 1 to either return to previous menu level or to exit the selection 
parameter without change.
5.8.5 Editing Front Panel Programming Mode Parameters
Table 5-5.  Front Panel Programming Mode Parameters
Main Menu1st Level 
Sub-Menu2nd Level 
Sub-MenuSetting Remarks
BCKLIGHT
(Backlight)AUTO
TOGGLE AUTO – Backlight Off if no keypress for more 
than 5 seconds.
Pressing the Backlight button again...

5-14Radio Programming and Tuning: Front Panel Feature and Button Configuration Mode
TX  PL
(Transmit TPL/
DPL)CH-001 ...
CH-016CSQ CSQ
TPL 067.0  001 ...
TPL 254.1 042
DPL 023 or 043  
DPL 754 127
TPL 1 TPL 1
TPL 2 TPL 2
TPL 3 TPL 3Transmit PL
• Frequency: CSQ, TPL 67.0 – TPL 254.1, 
DPL 023 – DPL 754, user defined TPL 1, user 
defined TPL 2, & user defined TPL 3
• Code: CSQ, 001 – 127, user defined TPL 1,
user defined TPL 2, & user defined TPL 3 
SQUELCH
(Squelch Level)CH-001 ...
CH-016NORMAL...