Motorola Pr400 Basic 6881096c24 A Manual

6881096C24-AAugust, 2004
Radio Alignment Procedures: Transmitter Alignment Options 5-7
5.4.3.1  To Perform Transmit High Power Tuning, do the following:
1.Under the Tx Align menu, select Transmit Power, then select High (Figure 5-5).
2.Press PTT Toggle. This will key the radio up at 1st test frequency (F1).   
3.Adjust the high power level to be as defined by Table 5-3. Move the slider/spin control or keying in 
values in the edit control (press ENTER to confirm your selection after typing in the softpot...

August, 20046881096C24-A
5-8Radio Alignment Procedures: Transmitter Alignment Options
3.Adjust the power level to be as defined by country power level specifications by moving the 
slider/spin control or keying in values in the edit control (press ENTER to confirm your selection 
after typing in the softpot value).
4.Press PTT Toggle to dekey the radio, go to the next frequency point by selecting the slider, typing 
in the edit control box (press ENTER to confirm your selection) or toggling the softpot...

6881096C24-AAugust, 2004
Radio Alignment Procedures: Transmitter Alignment Options 5-9
5.4.4.1  VCO Attenuation 25 kHz
1.Under the Tx Align menu, select VCO Attenuation 25 kHz (Figure 5-6).   
2.Begin with the lowest frequency. Select the thumb of the slider at the lowest frequency point and 
then press the PTT Toggle button to key up the radio at the corresponding frequency point. The 
spin control can also be toggled via its up/down arrow buttons. The softpot value can also be 
typed into the edit...

August, 20046881096C24-A
5-10Radio Alignment Procedures: Transmitter Alignment Options
Table 5-4.  Deviation Specifications 
5.4.5 DTMF Deviation Tuning
This tuning option controls the Dual Tone MultiFrequency deviation. Please note that Modulation 
Balancing and VCO Attenuation have to be performed prior to this tuning operation. Not doing so 
will result in the wrong deviation value being obtained while tuning the DTMF.
1.Under Tx Align, select DTMF Deviation (Figure 5-7).
2.Press PTT Toggle to key the...

6881096C24-AAugust, 2004
Radio Alignment Procedures: Receiver Tuning 5-11
5.4.6 MDC1200 Deviation Tuning (MDC radios only)
This tuning option controls the MDC1200 Signaling deviation. Please note that Modulation Balancing 
and VCO Attenuation have to be performed prior to this tuning operation. Not doing so will result in 
the wrong deviation value being obtained while tuning this feature.
1.Under the Tx Align, select MDC1200 Signaling (Figure 5-8).
2.Press PTT Toggle to key the radio up. Monitor the...

August, 20046881096C24-A
5-12Radio Alignment Procedures: Receiver Tuning
5.5.1 Rated Volume Tuning
Perform the rated volume tuning procedure as follows:
1.Under the Rx Align menu, select Rated Volume (Figure 5-9).
2.Inject a -47 dBm rf signal modulated with 1 kHz tone at 3 KHz (for 25 kHz channel spacing). 
3.Adjust the softpot value by using the slider, keying in the edit box (press ENTER to confirm the 
selection or send a softpot value), or via the spin controls. Repeat this until 500 mW (3.46 V)...

6881096C24-AAugust, 2004
Radio Alignment Procedures: Receiver Tuning 5-13
5.5.2 Squelch Tuning
5.5.2.1  Manual Squelch Tuning
Perform the squelch tuning procedure as follows:
1.Under the Rx Align menu, select Squelch Attenuation. Select Squelch Attenuation 12.5 kHz 
or Squelch Attenuation 25 kHz Channel Spacing variations (Figure 5-10). 
2.Apply an RF signal modulated with a 1 kHz tone at 60% rated deviation listed in Table 5-5 for cur-
rent frequency point (F1 being the first) of 10 dB SINAD. That is,...

August, 20046881096C24-A
5-14Radio Alignment Procedures: Receiver Tuning
3.Set softpot to its maximum value to mute the radio.
4.Adjust the softpot value by using the slider, keying in the edit box or using the spin controls. Press 
ENTER to confirm the selection or use the spin controls. Do this until the radio is totally unmuted. 
Verify the squelch closing by inputting a signal level of 4 dB lower than that of the 10 dB SINAD 
level.
5.Repeat Steps 2 through 4 of Manual Squelch Tuning, for frequency...

6881096C24-AAugust, 2004
Radio Alignment Procedures: Utilities5-15
5.Adjust the input level to reflect the next softspot value. Repeat steps 3 and 4 to tune the next 
value.
5.5.4 RSSI Display Tuning
1.Under the Rx Align menu, select RSSI Display Tuning.
2.Inject an on channel signal to the radio at -47 dBm at the frequency listed. Modulated the signal 
with a 1 kHz tone at 60% deviation (3 kHz) to verify the radio is receiving the desired frequency. 
RSSI tuning is only done at 25 kHz channel spacing....

August, 20046881096C24-A
5-16Radio Alignment Procedures: Radio-to-Radio Cloning
Procedure:
1.Turn source and target radios off.
2.Connect cloning cable (AAPMKN4003) to the side connector of both radios.
3.Turn on the destination radio.
4.Press and hold the two side buttons at the same time on the source radio and then power up the 
source radio (Figure 5-12). Both radios produce a “clone-entry” tone.
5.Release both side buttons, 1 and 2.
6.When cloning is completed, the source radio produce’s a...