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Table of Contents
Introduction ...................................................................................................................................................................... 3
Main highlights ...................................................................................................................................................................................3
Measurements, indications and outputs...............................................................................................................................................3
Technical Specifications ................................................................................................................................................... 4
Power supply (P75).............................................................................................................................................................................6
Power supply (P175) ...........................................................................................................................................................................6
Mainboard composition (P75).............................................................................................................................................................7
Mainboard composition (P175)...........................................................................................................................................................8
Alarm outputs (P175)..........................................................................................................................................................................9
Operating Instructions ................................................................................................................................................... 10
Power-up ...........................................................................................................................................................................................10
Operating modes ...............................................................................................................................................................................10
Menu .................................................................................................................................................................................................10
Measurements ................................................................................................................................................................. 12
Signal quality ....................................................................................................................................................................................12
Overall frequency deviation (peak frequency deviation)...................................................................................................................14
Pilot deviation ...................................................................................................................................................................................14
RDS deviation...................................................................................................................................................................................14
Pilot-to-RDS phase difference...........................................................................................................................................................15
Modulation power (MPX power, Pm)................................................................................................................................................15
Frequency deviation histogram .........................................................................................................................................................16
Service details (P75) .........................................................................................................................................................................17
Service details (P175) .......................................................................................................................................................................17
Simple stereo balance meter..............................................................................................................................................................17
Carrier frequency offset ....................................................................................................................................................................18
Radio Data System decoding ............................................................................................................................................................19
USB and COM Port Communication ........................................................................................................................... 23
Connecting the FM analyzer to a PC.................................................................................................................................................23
List of commands and configuration registers...................................................................................................................................23
FM Scope for Windows .................................................................................................................................................. 28
Basic features ....................................................................................................................................................................................28
System requirements .........................................................................................................................................................................28
First steps ..........................................................................................................................................................................................28
Connection to the device ...................................................................................................................................................................29
Preferences ........................................................................................................................................................................................29
DIP switches .....................................................................................................................................................................................30
Tool bar.............................................................................................................................................................................................30
Frequency deviation, histogram and accumulated distribution plot ..................................................................................................31
Modulation power .............................................................................................................................................................................31
MPX..................................................................................................................................................................................................32
RF Carrier .........................................................................................................................................................................................33
Bandscan ...........................................................................................................................................................................................35
Station lists........................................................................................................................................................................................36
Text window .....................................................................................................................................................................................36
Radio Data System / Radio Broadcast Data System .........................................................................................................................37
FTP upload........................................................................................................................................................................................38
SMTP Email client............................................................................................................................................................................38
MP3 recorder.....................................................................................................................................................................................39
Zoom option......................................................................................................................................................................................39
Script files .........................................................................................................................................................................................40
Web server ........................................................................................................................................................................................54
Socket control ...................................................................................................................................................................................57
Task scheduler...................................................................................................................................................................................58
Tips ...................................................................................................................................................................................................58
Service Part ..................................................................................................................................................................... 59
Firmware update ...............................................................................................................................................................................59
Superheterodyne receiver ganging ....................................................................................................................................................59
Annexes............................................................................................................................................................................ 60
Memory map .....................................................................................................................................................................................60
SetProperty and ReadProperty options..............................................................................................................................................62