4-10
Radio Programming and Tuning Procedures
4.
Note the deviation obtained.
5.
Adjust the slider, adjust the spin control or key in softpot values for the frequency point until the
deviation is within the range as defined in the Table 4-6 on page 4-9. Press
ENTER
to confirm the
selection.
6.
Press the
PTT Toggle
button to dekey radio. Choose the next frequency, key up, then repeat
Steps 3-5 until all seven tuning points are completed.
7.
Program the softpot value by pressing the
Program
button.
8.
Exit the VCO attenuation 25 kHz function.
4.4.9 VCO Attenuation (20 kHz)
Perform the 20 kHz VCO attenuation procedure as follows:
1.
Under the
Tx Align
menu, select
VCO Attn. 20 kHz
.
2.
Press
PTT Toggle
to key up the radio at F7.
3.
Inject 1 kHz at 800mVrms to the external microphone audio path.
4.
Note the deviation obtained.
5.
Adjust the slider, adjust the spin control or key in softpot values for the frequency point until the
deviation is within the range as defined in Table 4-6 on page 4-9. Press
ENTER
to confirm the
selection.
6.
Press
PTT Toggle
to dekey the radio.
7.
Program the softpot value by pressing the
Program
button.
8.
Exit the VCO attenuation 20 kHz function.
4.4.10 VCO Attenuation (12.5 kHz)
Perform the 12.5 kHz VCO attenuation procedure as follows:
1.
Under the
Tx Align
menu, select
VCO Attn. 12.5 kHz
.
2.
Press
PTT Toggle
to key up the radio at F7.
3.
Inject 1 kHz at 800mVrms to the external microphone audio path.
4.
Note the deviation obtained.
5.
Adjust the slider, adjust the spin control or key in softpot values for the frequency point until the
deviation is within the range as defined in the Table 4-6. Press
ENTER
to confirm the selection.
6.
Press
PTT Toggle
to dekey the radio.
7.
Enter the softpot value into the radio by pressing the
Program
button.
8.
Exit the VCO attenuation 12.5 kHz function.
Note: Tuning of modulation balance attenuation and VCO attenuation for 25kHz channel
spacing must be accomplished first.
Note: Tuning of modulation balance attenuation and VCO attenuation for 25kHz channel
spacing must be accomplished first.
Summary of Contents for CDM1250
Page 1: ...CDM Series Professional Series Two Way Mobile Radio Basic Service Manual ...
Page 2: ......
Page 30: ... ...
Page 34: ...2 22 Service Aids Notes ...
Page 60: ...4 18 Radio Programming and Tuning Procedures Notes ...
Page 72: ...6 8 Accessories Notes ...
Page 86: ...7 14 Model Chart and Test Specifications NOTES ...
Page 90: ...Glossary 4 Glossary Notes ...
Page 91: ......
