Wandel und Goltermann
SELECTIVE LEVEL METER SPM-15
with wideband section
Frequency range 50 Hz to 10 MHz
TRACKING GENERATOR PSE-15
Description and Operating Manual BN 955, Series I...

BN 0955/00.82
Edition 3492/3.87 (Replaces 3383)

With function leaflets
English language, 152 pages

This is Description and Operating Manual, Service and schematics are on separate sell!

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TABLE OF CONTENTS
CONTENTS SPM-15
INTRODUCTION
1 SPECIFICATIONS
1.1 Frequency
1.1.1 Selective and wideband measurement frequency range
1.1.2 Frequency indicator
1.1.3 Frequency setting
1.1.4 Tuning frequency error limit
1.2 Level
1.2.1 Display modes
1.2.2 Display of results
1.2.3 Display ranges
1.2.4 Level calibration
1.2.5 Fast signal detector for rapid signal recognition
1.2.6 Noise floor
1.2.6.1 Coaxial input Zin = Zo = 75R
1.2.6.2 Balanced input, Zin = Zo = 124/150R, 6 kHz to 10 MHz
1.2.6.3 Balanced input, Zin = Zo = 135/600R
1.2.7 Level indicator error limits
1.2.7.1 Selective measurement error limits
1.2.7.2 Frequency response of level indicator referred to f = 10 kHz
1.2.7.3 Total error
1.2.7.4 Wideband measurement error limits
1.3 Selectivity and harmonic ratio
1.3.1 Selectivity
1.3.2 Image frequency and IF suppression
1.3.3 Harmonic ratio ak2 and ak3
1.3.4 Noise power ratio (NPR)
1.4 Measurement inputs
1.4.1 Coaxial input
1.4.2 Balanced input
1.4.3 Maximum permissible input voltages (all inputs)
1.5 Tracking generator
1.5.1 Frequency range
1.5.2 Send level
1.5.3 Send level error limits
1.5.4 Measuring outputs
1.5.4.1 Coaxial output
1.5.4.2 Balanced output
1.5.5 Output voltage spectral purity
1.6 Additional inputs and outputs
1.6.1 Standard frequency output
1.6.2 Tuning frequency output
1.6.3 A.C. voltage output
1.6.4 A.C. voltage output
1.6.5 Demodulator
1.6.6 Remote control input
1.7 Power supply and ambient conditions
1.7.1 Power supply
1.7.1.1 A.C. mains operation
1.7.1.2 Battery operation
1.7.2 Safety class
1.7.3 Ambient conditions
1.8 Dimensions and weight
1.9 Accessories
1.9.1 TK-12 active test probe and TKN-12 power supply
1.9.1.1 TK-12 active test probe
1.9.1.2 TKN-12 power supply
1.9.2 FEDA-1 matching section (75R / 50R)
1.9.3 SDG-40 balanced attenuator
1.10 Ordering information
2 TECHNICAL DETAILS
2.1 Receiver
2.1.1 Input switching and frequency conversion
2.1.2 Automatic level calibration
2.1.3 Fast signal detector
2.1.4 Auxiliary outputs
2.2 Synthesizer
2.3 PSE-15 tracking generator
2.4 PS-15 level generator
2.5 Power supply
2.6 Microprocessor control
3 SET UP AND OPERATION
3.1 Unpacking the instrument
3.1.1 Re-packing instructions
3.1.2 Protective covers
3.2 Setting up the instrument
3.2.1 19 rack mounting
3.3 Controls and indicators
3.3.1 Abridged operating manual
3.4 Power supply
3.4.1 A.C. mains operation
3.4.2 Battery operation
3.4.2.1 Battery storage and maintenance
3.4.3 Changing the fuses
3.5 Setting up the instrument
3.5.1 Standard settings
3.5.2 Display brightness [4]
3.6 Inputs: impedances and frequency ranges [5]
3.7 Frequency setting [10]
3.7.1 Continuous frequency setting
3.7.2 Stepwise frequency setting
3.7.3 Retaining a frequency setting
3.8 Automatic level calibration [1]
3.9 Absolute level indication
3.10 Digital/analog mode selection
3.10.1 Digital level measurement
3.10.1.1 Absolute voltage- or power-levels ABS
3.10.1.2 Level difference ABS-REF
3.10.1.3 Measurement of level in dBmO
3.10.1.4 Over- and under-range level indication
3.10.2 Analog level measurement
3.10.2.1 Setting the measuring range
3.10.2.2 Scale ranges
3.10.2.3 Fast signal detector
3.11 Measuring mode
3.11.1 Wideband level measurement
3.11.2 Selective level measurement
3.11.3 Demodulation
3.11.4 Send level
3.12 Frequency search-scan
3.13 D.C. output [30]
3.14 A.C. output [35]
3.15 External tuning of PS-15
3.16 PSE-15 tracking generator
3.16.1 Conditions at switch-on
3.16.2 Outputs, output impedances, frequency ranges
3.16.3 Setting the send frequency
3.16.4 Setting the send level
3.16.5 Switching off the tracking generator
3.17 Measurement accessories
3.17.1 TK-12 test probe
3.17.2 FEDA-1 75R / 50R matching section
3.17.3 Return loss and signal balance ratio measurement
4 MEASUREMENT NOTES
4.1 Measurement using SPM-15 and PSE-15
4.2 Measurement using SPM-15 and PS-15
4.3 Measuring high attenuations
4.4 Level meter selectivity curves
4.5 Demodulator measurements
4.6 Weighted noise measurements
4.7 Automatic drive level monitoring
4.8 Intrinsic and intermodulation noise measurements
5 FUNCTION TESTS, MAINTENANCE, ETC.
5.1 Function test at first switch-on
5.1.1 Frequency check
5.1.2 Intrinsic noise check
5.1.3 Receiver selectivity check
5.1.4 Balanced input [5] impedance checks
5.1.5 Tracking generator balanced output [11] impedance check
5.1.6 Error messages
5.2 Maintenance, etc.
5.2.1 Construction
5.2.2 Versacon(R)9 universal connector system
5.2.3 19 rack-mounting conversion
6 REMOTE CONTROL USING THE INTERFACE BUS
6.1 Introduction
6.2 Instrument set-up
6.2.1 remote-control bus interface board, BN 955/00.03
6.2.2 Instrument address
6.2.3 Parallel poll setting
6.2.4 Connection to the bus system
6.2.5 Interface functions
6.3 Programming
6.3.1 Familiarisation with SPM-15 programming
6.3.2 Principles of programming
6.3.2.1 Preparation
6.3.2.2 Setting up the instrument using program data
6.3.2.3 Reducing program data transmission times
6.3.2.4 Abbreviation of program words
6.3.2.5 Continuous and single triggering T0, and T1,
6.3.2.6 Waiting for the end of a measurement (Status Byte and Service Request)
6.3.2.7 Calling up the results, setting and error messages
6.3.3 SPM-15 programming: some examples
6.3.3.1 Waiting time at the end of a single measurement
6.3.3.2 Receiver search-scan
6.4 Device dependent messages
6.4.1 Program- and measurement data overview
6.4.2 Basic instrument settings
6.4.3 Alphabetical listing of program words for the SPM-15
6.4.4 Measurement data (result; generator level; error messages): alphabetical listing
6.4.5 SPM-15 Status-Byte
6.4.6 General information
6.4.6.1 Correcting incorrectly entered program words
FIGURES
2-1 Simplified block diagram, SPM-15 Level Meter and PSE-15 tracking generator
3-1 Re-packing instructions
3-2 Instrument fitted into 19 rack mounting case (Level Generator PS-15 shown here)
3-3a Front view of SPM-15, version BN 955/01
3-3b Front view of SPM-15, verion BN 955/02
3-4a Rear view of SPM-15, version BN 955/01
3-4b Rear view of SPM-15, version BN 955/02
3-5 Level Meter with BAZ-15 Battery Pack
3-6 50 S2 impedance measurements
4-1 Measurements using the same send- and receive frequency
4-2 Measurements using SPM-15 and PS-15
4-3 Return and coupling impedances between generator and receiver
4-4 Typical selectivity curves for 3.1 kHz and 1.74 kHz bandwidths
4-5 Typical selectivity curve for 25 Hz bandwidth
4-6 CCITT psophometer curve
4-7 Selectivity curve and effective noise bandwidth
4-8 Noise measurement using the SPM-15
4-9 Typical intrinsic NPR curve with noise loading (1800 channels)
5-1 Test set-up for checking instrument function
5-2 Versacon(R)9 basic connector, together with some of the Versacon(R)9 adapters available
6-1 Computer controlled level measuring set up using IEC 625 interface
6-2 IEC bus board BN 955/00.03 for SPM-15
6-3 Bus connectors: pin connections
6-4 Connecting IEC 625 and IEEE 488 systems together
6-5 Program word codes related to the controls of the SPM-15 Level Meter
6-6 Basic setting for the SPM-15 and tracking generator
6-7 Formation of a program word
6-8 Remarks codes and their meanings
6-9 Measurement data format
6-10 Status bit assignments on the IEC bus data lines
TABLES
3-1 Controls and connections on the front panel
3-2 Controls and connectors on the back panel
5-1 Function testing sequence
5-2a Error messages class 0
5-2b Error numbers class 1 and 2
6-1 List of interface functions implemented
6-2 Initial programming of the SPM-15
6-3 Instrument functions and their corresponding program words (instrument programming data)
6-4 Measurement data format (instrument output data)
6-5 Program word error numbers (class 4 and 5 errors)