Moseley PCL6000
5-3
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
5.3
Alignment Procedures
The PCL6000 alignment procedures include the following:
5.3.1
STL
Frequency
Alignment
5.3.2
Receiver
Sensitivity
5.3.3
Receiver
Selectivity
5.3.4 Transmitter Deviation and Receiver Output Level Calibration
5.3.5
Ultimate
Signal-to-Noise
Ratio
5.3.6
Distortion
Alignment
5.3.7 Stereo Separation and Signal-to-Noise Ratio
5.3.8
Stereo
Crosstalk
5.3.9
STL
frequency
Change
5.3.10
FMO
Adjustment
5.3.11
Transmitter
Troubleshooting
Procedure
5.3.1
STL Frequency Alignment
Description
The STL frequency is aligned by using a counter to measure the transmitter output frequency and
the receiver 1st LO frequency. A high-precision counter (
±
0.2 ppm) is recommended to align STL
links that are used in a redundant installation. If such a counter is not available, we recommend
that both STL systems be aligned at the same time using the same counter.
Procedure
1.
Connect the equipment as shown in Figure 5-1.
2.
Position the transmitter OPERATE/STANDBY switch to the OPERATE position. Verify
that the RADIATE, and AFC LOCK status LEDs are green.
Using the METER FUNCTION switch, select the FWD PWR position. Verify that the front
panel meter reads between -3 and +2 dB on the top scale.
3.
Check the serial number label on the back of the transmitter for its operating center
frequency. The counter should indicate the frequency within 8 kHz of the specified center
frequency. If it does not, proceed to the troubleshooting portion of this procedure and
verify that the 1st LO and FMO are operating at their specified frequencies (refer to
system data sheet supplied with the unit).
4.
While monitoring the counter, adjust the transmitter FMO frequency trim adjustment for a
reading of the specified transmitter frequency ±200 Hz.*
5.
The receiver 1st LO frequency for the 950 MHz band is 1020.000 MHz ± 8KHz (refer to
system data sheet to determine exact frequency of your unit).
6.
Calculate the receiver 2nd LO frequency by adding 10.700 to the 1st LO frequency and
subtracting the operating frequency (i.e., for a transmitter at 950.000 MHz, the 2nd LO is
(1020.000 + 10.700) - 950.000 = 80.700 MHz).
Содержание PCL-600
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Страница 30: ...1 18 System Characteristics Moseley PCL 6000 Document No 602 13375 01 Rev B...
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Страница 40: ...2 8 Installation Moseley PCL 6000 Document No 602 13375 01 Rev B Figure 2 3 Typical PCL6000 Site Installation...
Страница 64: ...3 10 Operation Moseley PCL 6000 Document No 602 13375 01 Rev B...
Страница 86: ...4 22 Module Characteristics Moseley PCL 6000 Document No 602 13375 01 Rev B...
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Страница 138: ...6 4 Customer Service Moseley PCL 6000 Document No 602 13375 01 Rev B...
Страница 149: ...Moseley PCL6000 7 11 Moseley PCL 6000 Document No 602 13375 01 Rev B 930 03462 01 Rev H Transmitter RF Module Assembly...
Страница 151: ...Moseley PCL6000 7 13 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B3037 Rev B RF Amplifier 220 MHz Assembly...
Страница 153: ...Moseley PCL6000 7 15 Moseley PCL 6000 Document No 602 13375 01 Rev B 21B2892 Rev D 6030 Receiver Final Assembly...
Страница 163: ...Moseley PCL6000 7 25 Moseley PCL 6000 Document No 602 13375 01 Rev B 930 03595 01 Rev J Receiver RF Module 6030 Assembly...
Страница 165: ...Moseley PCL6000 7 27 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B2941 Rev C IF DEMOD 6020 Assembly...
Страница 167: ...Moseley PCL6000 7 29 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B3039 Rev E Double Converter LO3 6030 Assembly...
Страница 169: ...Moseley PCL6000 7 31 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B2949 Rev G FM Demod 6030 Assembly...
Страница 181: ...Moseley PCL6000 7 43 Moseley PCL 6000 Document No 602 13375 01 Rev B 930 03462 013 Rev H Transmitter RF Module Assembly...
Страница 183: ...Moseley PCL6000 7 45 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B3038 Rev A RF Amplifier 330 MHz Assembly...
Страница 185: ...Moseley PCL6000 7 47 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B2958 Rev D RF Amplifier 450 MHz Assembly...
Страница 187: ...Moseley PCL6000 7 49 Moseley PCL 6000 Document No 602 13375 01 Rev B 21B2892 4 Rev D 6030 Receiver Final Assembly...
Страница 199: ...Moseley PCL6000 7 61 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B2941 2 Rev C IF DEMOD 6020 Assembly...
Страница 201: ...Moseley PCL6000 7 63 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B3039 Rev E Double Converter LO3 6030 Assembly...
Страница 203: ...Moseley PCL6000 7 65 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B2949 Rev G FM Demod 6030 Assembly...
Страница 215: ...Moseley PCL6000 7 77 Moseley PCL 6000 Document No 602 13375 01 Rev B 91B7379 Rev C RF Amplifier 950 MHz 6w Schematic...
Страница 217: ...Moseley PCL6000 7 79 Moseley PCL 6000 Document No 602 13375 01 Rev B 21B2891 1 Rev D 6020 Receiver Final Assembly...
Страница 219: ...Moseley PCL6000 7 81 Moseley PCL 6000 Document No 602 13375 01 Rev B 21B2915 Rev D 6060 Receiver Final Assembly...
Страница 231: ...Moseley PCL6000 7 93 Moseley PCL 6000 Document No 602 13375 01 Rev B 91D7274 2 Rev J Preamp 1st Mixer 6060 Schematic...
Страница 233: ...Moseley PCL6000 7 95 Moseley PCL 6000 Document No 602 13375 01 Rev B 91B7375 Rev C IF Demod 6020 Schematic...
Страница 237: ...Moseley PCL6000 7 99 Moseley PCL 6000 Document No 602 13375 01 Rev B 91B7387 Rev F FM Demod 6030 6060 Schematic...
Страница 251: ...Moseley PCL6000 7 113 Moseley PCL 6000 Document No 602 13375 01 Rev B 930 03462 01 Rev H Transmitter RF Module Assembly...
Страница 255: ...Moseley PCL6000 7 117 Moseley PCL 6000 Document No 602 13375 01 Rev B 21B2927 Rev C 6030 Receiver Final Assembly...
Страница 267: ...Moseley PCL6000 7 129 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B3039 Rev E Double Converter LO3 6030 Assembly...
Страница 269: ...Moseley PCL6000 7 131 Moseley PCL 6000 Document No 602 13375 01 Rev B 20B2949 Rev G FM Demod 6030 Assembly...
Страница 271: ...Moseley PCL6000 7 133 Moseley PCL 6000 Document No 602 13375 01 Rev B 20C3104 Rev A Channel Control Assembly...
Страница 273: ...Moseley PCL6000 7 135 Moseley PCL 6000 Document No 602 13375 01 Rev B 917515 Rev A Channel Control Schematic 2 of 4...
Страница 275: ...Moseley PCL6000 7 137 Moseley PCL 6000 Document No 602 13375 01 Rev B 917515 Rev A Channel Control Schematic 4 of 4...
Страница 277: ...Moseley PCL6000 7 139 Moseley PCL 6000 Document No 602 13375 01 Rev B 910 08614 01 Rev B PCL 6020 Multichannel Option...
