Operating Manual for COMMUNICATIONS SERVICE MONITOR

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Systems testing Cellular and trunked radio-telephone systems Service Monitor AF OUT AF IN OPERATING MANUAL 2945A 46882-311D 1-5 ! ! RF Fig. 1-5 Cellular radio-telephone test setup + SERVICE CONNECTION DC SUPPLY With the appropriate cellular or trunked mobile telephone option included, the monitor has built-in software to generate and interrogate signals of the various cellular or trunked telephone systems. This gives the facility for testing all aspects of these systems. Inbuilt test programs and user programming facilities give speed and flexibility to these tests. Operating instructions for each of the SYSTEM test options is given in separate supplements to this manual. These supplements are supplied, as appropriate, with instruments fitted with SYSTEM testing options. Spectrum analyzer The SPEC ANA mode allows ‘off air’ and directly coupled RF signals to be studied and monitored. Sideband spread, harmonic levels and RF interference can be examined. The frequency range of the spectrum analyzer is from 100 kHz to 1.0 GHz with the start and stop frequencies of the sweep infinitely variable from within this range. The tracking generator permits frequency response tests to be made to frequency dependent circuits and the frequency offset facility extends this capability into the area of frequency shifting circuits, such as mixers. The ‘Look and Listen’ function gives the ability to demodulate a signal displayed on the spectrum analyzer and monitor the signal obtained on the built-in loudspeaker, on headphones or other data output equipment. C3253
GENERAL INFORMATION AF testing Service Monitor AUDIO AUDIO Fig. 1-6 AF test setup Amplifier Under Test The AF testing mode allows the dual AF generators and the tones generator to be used as a signal source. The AF voltmeter, distortion meter, bar chart displays and the AF counter can all be used to provide data relating to signals applied to the AF input connector. The digital oscilloscope is also available for studying AF waveforms. 1-6 46882-311D C3244
Page 1: Contains Operating Manual for COMMU
Page 4 and 5: About this manual This manual expla
Page 6 and 7: Contents Precautions ..............
Page 8 and 9: PRECAUTIONS Fuses WARNING WARNING W
Page 10 and 11: Contents List of figures Chapter 1
Page 12 and 13: Receiver testing OPERATING MANUAL 2
Page 16 and 17: Receiver measurements RF signal gen
Page 18 and 19: Audio Frequency Meter Frequency Ran
Page 20 and 21: OPERATING MANUAL 2945A Modulation M
Page 22 and 23: General features OPERATING MANUAL 2
Page 24 and 25: OPERATING MANUAL 2945A Printers sup
Page 26 and 27: OPERATING MANUAL 2945A 46882-311D 1
Page 28 and 29: INSTALLATION Introduction This chap
Page 30 and 31: INSTALLATION British Country IEC 32
Page 32 and 33: INSTALLATION RF and AF connections
Page 34 and 35: INSTALLATION GPIB The pin connectio
Page 36 and 37: INSTALLATION Test No 6 Transmitter
Page 38 and 39: INSTALLATION Check that the equipme
Page 40 and 41: Chapter 3 LOCAL OPERATION Contents
Page 42 and 43: OPERATING MANUAL 2945A Fig. 3-11 Sp
Page 44 and 45: OPERATING MANUAL 2945A The informat
Page 46 and 47: OPERATING MANUAL 2945A undefined si
Page 48 and 49: OPERATING MANUAL 2945A (31) Serial
Page 50 and 51: Setup page 1 This page allows the f
Page 52 and 53: OPERATING MANUAL 2945A Power Up Fro
Page 54 and 55: Brief descriptions Using the test m
Page 56 and 57: Tx test (transmitter testing) Overv
Page 58 and 59: WARNING Hot surfaces OPERATING MANU
Page 60 and 61: OPERATING MANUAL 2945A Directional
Page 62 and 63: Audio distortion measurement OPERAT
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OPERATING MANUAL 2945A shape settin
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OPERATING MANUAL 2945A The harmonic
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OPERATING MANUAL 2945A trigger poin
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External attenuators OPERATING MANU
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*DUPLEX* OPERATING MANUAL 2945A All
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OPERATING MANUAL 2945A The input si
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Connections MOD GEN 1 MOD GEN 2 TON
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WARNING Output level setting Hot su
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OPERATING MANUAL 2945A External Mod
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OPERATING MANUAL 2945A See Fig. 3-8
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OPERATING MANUAL 2945A 20 dB signal
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Selectivity 2041 Signal Generator S
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OPERATING MANUAL 2945A difference i
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Systems TONES GEN MOD GEN 1 MOD GEN
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Setting up OPERATING MANUAL 2945A T
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OPERATING MANUAL 2945A (6-2) to be
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Look and Listen ! ! I/O SWITCH- ING
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OPERATING MANUAL 2945A When operati
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Input filtering OPERATING MANUAL 29
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Parameter Test mode Tx frequency Tx
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Observing tones signals in other te
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Fig. 3-19 RF Sequential tones encod
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OPERATING MANUAL 2945A of the orang
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Output level Tone selection OPERATI
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OPERATING MANUAL 2945A Return to th
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OPERATING MANUAL 2945A Press the [T
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OPERATING MANUAL 2945A The POCSAG t
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OPERATING MANUAL 2945A • Set the
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The soft keys have the following fu
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Recalling Results OPERATING MANUAL
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OPERATING MANUAL 2945A If a memory
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OPERATING MANUAL 2945A Key in the e
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Printer Access OPERATING MANUAL 294
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FROM LOGIC CIRCUITS Table 3-2 Rear
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Test mode screen and menu (1.0). HE
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Test mode screen and menu (2.0). Tx
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Test mode screen and menu (3.0). Rx
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Test mode screen and menu (4.0). Dx
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Test mode screen and menu (5.0). SY
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Test mode screen and menu (6.0). SP
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Test mode screen and menu (7.0). AF
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Contents List of figures Chapter 4
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The display OPERATING MANUAL 2945A
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Tx test mode OPERATING MANUAL 2945A
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Receiver circuits Input switching B
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Third frequency changer/mixer OPERA
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RF generator Modulators RF amplifie
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AF test mode Systems mode OPERATING
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TECHNICAL DESCRIPTION Simplified bl
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ACCEPTANCE TESTING Introduction Res
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ACCEPTANCE TESTING RF output tests
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ACCEPTANCE TESTING (3) Check that t
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ACCEPTANCE TESTING Test equipment D
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ACCEPTANCE TESTING (12) Refer to Re
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ACCEPTANCE TESTING Frequency modula
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ACCEPTANCE TESTING Audio generator
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ACCEPTANCE TESTING Audio voltmeter
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ACCEPTANCE TESTING UUT LF generator
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ACCEPTANCE TESTING Test equipment D
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Page 188 and 189:
ACCEPTANCE TESTING UUT N TYPE OUTPU
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ACCEPTANCE TESTING Power meter SENS
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ACCEPTANCE TESTING Acceptance Test
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ACCEPTANCE TESTING Level (dBm) Resu
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ACCEPTANCE TESTING Results table 5-
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Page 200 and 201:
ACCEPTANCE TESTING AF generator 1 f
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ACCEPTANCE TESTING Frequency DVM re
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ACCEPTANCE TESTING Carrier frequenc
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Page 208 and 209:
Contents List of tables List of fig
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Précautions OPERATING MANUAL 2945A
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Precauzioni OPERATING MANUAL 2945A
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Features OPERATING MANUAL 2945A Thi
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OPERATING MANUAL 2945A RF connector
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CW POWER 1000W 100W 10W 1W 100mW 10
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VSWR Return loss (dB) Table A-1 Con
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OPERATING MANUAL 2945A The bar char
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DIRECTIONAL COUPLER CH. 1 CH. 2 TO
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LIGHT-WEIGHT DIRECTIONAL POWER HEAD
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Page 236 and 237:
INDEX H Hard copy .................
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Operating Manual for COMMUNICATIONS SERVICE MONITOR

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