Motorola Cdm Series Basic 6881091c62 D Manual

Transceiver Performance Testing3-7
* See Table 3-4
** MDC
PL/DPL 
ModulationAs above
4th channel test frequency*
BW to narrowTEST MODE, 
Test Channel 4
TPL
DPLAs aboveDeviation:
0.25-0.5 kHz (12.5 
kHz Ch. Sp.).
0.4-0.8 kHz (20 kHz 
Ch. Sp.).
0.5-1.0 kHz (25 kHz 
Ch. Sp.). Table 3-6: Transmitter Performance Checks (Continued)
Test Name Communications Analyzer Radio Test Set Comment 

3-8Transceiver Performance Testing
* See Table 3-4Table 3-7: Receiver Performance Checks
Test Name Communications Analyzer Radio Test Set Comment
Reference 
FrequencyMode: PWR MON
4th channel test frequency*
Monitor: Frequency error
Input at RF In/OutTEST MODE,
Test Channel 4 
carrier squelch 
output at 
antennaPTT to 
continuous 
(during the 
performance 
check)Frequency error to 
be ±150 Hz VHF
±150 Hz UHF
±100 Hz LowBand
Rated Audio Mode: GEN
Output level: 1.0mV RF
4th channel test frequency*
Mod:...

4-1
Chapter 4
Radio Programming and Tuning Procedures
4.1 Introduction
This chapter provides an overview of the Customer Programming Software (CPS) and tuner program 
designed for use in a Windows 95/98/NT environment. An installation instruction manual is also 
included with each kit. 
Table 4-1: Software Installation Kit Radio Tuning Setup
4.2 CPS Programming Setup
The CPS programming setups, shown in Figure 4-1 through Figure 4-3, are used to program the 
radio.
Description Kit Number
Customer...

4-2Radio Programming and Tuning Procedures
Figure 4-2: CPS Programming Setup Cable with Internal RIB
Figure 4-3: CPS Programming Setup Cable with Internal RIB and Rear Adapter Cable
Powe r 
Supply +13,2VDC
Programming Cable AARKN4081
 Rx Data
GndTx Data
DB25
RadioDC
RF ACC
ZWG0130339-0
Programming
AARKN4081Cable Adapter
AARLN4853Cable 
 
Rx Data
GndTx Data
DB25RadioDC
RF ACC
Powe r  
Supply +13,2VDC
ZWG0130340-0 

Radio Programming and Tuning Procedures4-3
4.3 Radio Tuning Setup
A personal computer (PC), Windows 95/98/NT, and a tuner program are required to tune the radio. To 
perform the tuning procedures, the radio must be connected to the PC, radio interface box (RIB), and 
test equipment setup as shown in Figure 4-4.
Figure 4-4: Radio Tuning Test Equipment Setup with External RIB
4.3.1 Initial Test Equipment Control Settings
The initial test equipment control settings are listed in Table 4-2. 
Table 4-2:...

4-4Radio Programming and Tuning Procedures
4.4 Transmitter Tuning
The following sub-sections contain the procedures to tune the radio transmitter. These procedures 
include: 
lPower Amplifier (PA) Bias Tuning
lBattery Threshold Tuning
lReference Oscillator Warp
lDAC Tuning (LowBand radios only)
lTransmit Power Tuning
lPower Amplifier (PA) Voltage Limit Tuning (VHF 1-25W and UHF 1-25W LDMOS radios only)
lModulation Balance Attenuation
lVCO Attenuation
lDTMF Deviation
lMDC1200 Deviation
4.4.1 Power...

Radio Programming and Tuning Procedures4-5
Table 4-3: PA Bias Specifications*
*These values are up-to-date as of the print date. For the latest values and procedures, refer to the 
Tuner online help.
4.4.2 Reference Oscillator Warp
This procedure affects all deviation values such as DTMF and MDC1200 signaling as the frequency 
will drift if not warped properly.
Perform the oscillator warp procedure as follows:
1. Under the Tx Align menu, select Reference Oscillator Warp.
2. There is only one frequency...

4-6Radio Programming and Tuning Procedures
Table 4-4: Reference Oscillator Warp Specifications*
*These values are up-to-date as of the print date. For the latest values and procedures, refer to the 
Tuner online help.
4.4.3 DAC Tuning (LowBand radios only)
Perform the DAC tuning procedure as follows:
1. Under the Tx Align menu, select Transmit Power, then select DAC.
2. Press the PTT Toggle button to key up the radio.
3. Select DAC1 by clicking on its slider bar.
4. Measure the transmit power and compare...

Radio Programming and Tuning Procedures4-7
4.4.4 Transmit Power Tuning
Perform the transmit high power tuning procedure as follows:
1. Under the Tx Align menu, select Transmit Power, then select K and M Tuning.
2. Select the Power 1 box for the first frequency (F1).
3. Press PTT Toggle to key up the radio.
4. Observe the power level (W) displayed on the power meter. Record this value as X.
5. Key in the value X in the Power 1 box.
6. Select the Power 2 box for the first frequency (F1).
7. Observe the...

4-8Radio Programming and Tuning Procedures
4.4.6 Modulation Balance Attenuation
Perform the modulation balance attenuation procedure as follows:
1. Under the Tx Align menu, select Mod Balance Attn.
2. Begin with the lowest frequency, i.e., the first frequency point from the top. Press PTT Toggle 
without selecting any slider control at the corresponding frequency point. This keys the radio up at 
the first frequency point.
3. Inject 80 Hz at 100mVrms.
4. Record the deviation obtained. Typical values...