User's Manual
Table Of Contents
- 1 1 Getting Started With The Test Set
- 2 2 Measurements Considerations
- 3 3 Testing FM Radios
- FM Off The Air Monitoring/Determining Unknown Tran...
- FM Output Power, Deviation, and Frequency/Frequenc...
- FM Deviation and Symmetry Measurement
- FM Microphone Sensitivity and Modulation Limiting ...
- FM CTCSS Encoder Frequency and Deviation Measureme...
- FM CDCSS Coding and Deviation Measurements
- FM DTMF Encodes and Deviation Measurement
- FM Audio Distortion Measurement
- FM Harmonics and Spurious Output Measurement
- FM Audio Output Power Measurement
- FM SINAD, Receiver Center Frequency, and Modulatio...
- FM Variation Of Sensitivity With Signal Frequency ...
- FM 20 dB Quieting Sensitivity Measurement
- FM Critical and Maximum Squelch Sensitivity Measur...
- FM CTCSS Sensitivity and Bandwidth Measurement
- FM CDCSS Sensitivity Measurement
- FM Audio Frequency Response Measurement
- FM Audio Distortion Measurement
- FM Spurious Response Attenuation Measurement
- 4 4 Testing AM Radios
- AM Off The Air Monitoring/Determining Unknown Tran...
- AM Output Power, Deviation, and Frequency/Frequenc...
- AM Microphone Sensitivity and Modulation Limiting ...
- AM Audio Distortion Measurement
- AM Harmonics and Spurious Output Measurement
- AM Envelope Display Measurement
- AM Audio Output Power Measurement
- AM Sensitivity Measurement
- AM AGC Measurement
- AM Squelch Sensitivity Measurement
- AM Audio Frequency Response Measurement
- AM Audio Distortion Measurement
- AM Spurious Response Attenuation Measurement
- 5 5 Testing SSB Radios
- 6 6 Spectrum Analyzer Measurements
- Measuring Transmitter High/Low Power Signals
- Field Strength Measurements
- Analyzing External Transmitter Inter-modulation Di...
- Basic Measurements with the Tracking Generator
- Antenna Return Loss (VSWR) Measurement & Tuning
- 1/4 Wave Coaxial Filter Tuning (Swept)
- Cable Fault Locations
- Passive Cavity Insertion and Return Loss Measureme...
- Repeater System Effective Sensitivity Measurement
- 7 7 Oscilloscope Measurements
- 8 8 Configuring for Measurements
- 9 9 References
- 10 10 HP 8920A Specifications
- RF Frequency
- Output
- Spectral Purity
- FM
- AM
- TDMA Signal Generator
- Frequency
- Output Level
- RF Power Measurement
- RF Frequency Measurement
- FM Measurement
- AM Measurement
- SSB Measurement
- TDMA Analyzer
- Frequency Measurement
- AC Voltage Measurement
- DC Voltage Measurement
- Distortion Measurement
- SINAD Measurement
- Audio Filters
- Frequency
- Tracking Generator
- Adjacent Channel Power
- TCXO (Standard)
- OCXO (Option 001)
- 11 11 HP 8920B Specifications
- RF Frequency
- Output
- Spectral Purity
- FM
- AM
- TDMA Signal Generator
- Frequency
- Output Level
- RF Power Measurement
- RF Frequency Measurement
- FM Measurement
- AM Measurement
- SSB Measurement
- TDMA Analyzer
- Frequency Measurement
- AC Voltage Measurement
- DC Voltage Measurement
- Distortion Measurement
- SINAD Measurement
- Audio Filters
- Frequency
- Tracking Generator
- Adjacent Channel Power
- TCXO (Standard)
- OCXO (Option 001)
FM Receivers
101
FM CDCSS Sensitivity Measurement
Description
This procedure is used to measure an FM Receiver’s Continuous
Digital Coded Squelch System (CTCSS) sensitivity. The minimum
signal input at the Receiver’s antenna (modulated with digital code) that
opens the squelch is measured and displayed. Squelch hysteresis is also
measured and calculated.
DUPLEXTXRX PREV TESTS
CONFIGHELPMSSG HOLD PRINT
SCREEN CONTROL
LOCAL
ADRS
REC AL L
SAV E
MEAS
RESET
PRESET
INSTRUMENT STATE
DATA FUNCTIONS
INCR
: 10
REF SET
IN CR
SET
METER
INCR X10
AVG
LO LIMIT HI LIMIT
CURSOR CONTROL
PUSH TO SELECT
CAN CEL
SHIFT
k1
k1’
k2
k2’
k3
k3’
k4
ASSIGN
k5
RELEASE
USER DATA
789
456
123
0
+
_
ENTER
GHz
dBm
dB
MHz
V
%
kHz
mV
s
Hz
µV
ms
%
dBµV
Ω
ppm
W
NO
ON/OFF
YES
MEMORY
CARD
AUDIO IN
LOHI
!
MAX
42 v Pk
!
MAX
12 v Pk
AUDIO OUTSQUELCHVOLUMEMIC/ACC
MA X PO WER 200 mW
!
ANT INDUPLEX OUTRF IN/OUT
!
MA X PO WER 60 W
CONTINUOUS
POWER
OFF ON
1
2
Data Entry
RX TEST
50Ω COXIAL
CABLE
TEST LOAD
RECEIVER UNDER TEST
ANTENNA (RF INPUT)
SPEAKER
(AUDIO
INPUT)
3
+
GND
Knob
Keys
ENCODER