Agilent Technologies HP8648A Manuale Utente

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9In this Book This book is a guide for performing common radio tests using the Test Set. This guide contains the following chapters and appendices. Ch

FM Receivers99On the Radio set the Receiver’s Controls as follows:11 Set power to ON. 12 If required, set frequency to the same value as step 4 13 If

FM Receivers100just closes. • Record the frequency. Calculate the Bandwidth:23 Bandwidth = Larger AFGen2 Freq - Smaller AFGen2 Freq NOTE: Calculated b

FM Receivers101FM CDCSS Sensitivity Measurement DescriptionThis procedure is used to measure an FM Receiver’s Continuous Digital Coded Squelch System

FM Receivers102Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

FM Receivers103Once the Sending:13 Press the PREV key to return to the RX TEST screen.14 Set RF Gen Freq to the receiver operating frequency. 15 Set A

FM Receivers104On the Test Set using the knob and data entry keys:24 Verify Receiver’s squelch is closed. 25 Set Amplitude to −137 dBm. 26 Slowly incr

FM Receivers105FM Audio Frequency Response Measurement DescriptionThis procedure is used to measure an FM Receiver’s audio frequency response. A refer

FM Receivers106Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

FM Receivers107On the Test Set using the knob and data entry keys:15 Set AFGen1 To 20% of the Receiver’s maximum frequency deviation(1 kHz for Receive

FM Receivers108FM Audio Distortion Measurement DescriptionThis procedure is used to measure an FM Receiver’s audio distortion. Distortion is measured

10Chapter 8, Configuring For MeasurementsThis chapter contains the information required to install the Test Set in preparation of performing measureme

FM Receivers109Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

FM Receivers110On the Test Set using the knob and data entry keys:14 Change SINAD meter to read Distortion. Distortion is displayed as shown. 15 Selec

FM Receivers111FM Spurious Response Attenuation Measurement DescriptionThis procedure is used to measure an FM Receiver’s spurious response attenuatio

FM Receivers112Measurement Procedure:CAUTION: Before connecting the Signal Generator, set RF Output power to OFF (ormaximum attenuation).1 Connect the

FM Receivers113On the Test Set using the knob and data entry keys:14 Decrease Amplitude until the SINAD meter reads 12 dB. ❒ If desired, use the meter

FM Receivers114On the Signal Generator:17 Set RF Power to ON.18 Set Output Level to 31.6 mV.19 Set Output Frequency to lowest frequency being checked

1154Testing AM Radios

Introduction116Introduction Each procedure may contain the following information: • A brief measurement overview and a reference to applicable TIA/EIA

List of Tests117List of TestsAM Transmitter Measurements "AM Off The Air Monitoring/Determining Unknown Transmitter Carrier Frequency" on pa

AM Transmitters118AM TransmittersThe following measurements are provided for testing AM Transmit-ters. The procedures are arranged in the order that t

11Contents1 Getting Started With The Test SetConventions Used In This Manual 24Product Description 25The Test Set’s Features 28

AM Transmitters119AM Off The Air Monitoring/Determining Unknown Transmitter Carrier Fre-quencyDescriptionThis procedure is used to locate, demodulate,

AM Transmitters120Measurement Procedure:1 Connect the Antenna to the ANT IN connector.CAUTION: Do not exceed the connector’s rated input or permanent

AM Transmitters121Once the desired carrier is found: 8 From Controls, select Main.9 Select Marker from the Choices field.10 Use the Marker To field to

AM Transmitters122AM Output Power, Deviation, and Frequency/Frequency Error Measurement DescriptionThis procedure is used to measure an AM Transmitter

AM Transmitters123Measurement Procedure:1. Connect the Transmitter Under Test as shown. CAUTION: The RF present at the Test Set RF IN/OUT connector mu

AM Transmitters1249. Determine if actual frequency readout or frequency error is the desired measurement.❒ For actual frequency readout, continue with

AM Transmitters125AM Microphone Sensitivity and Modulation Limiting Measurement DescriptionThis procedure is used to measure an AM Transmitter’s audio

AM Transmitters126Measurement Procedure:1. Connect the Transmitter as shown. CAUTION: The RF present at the Test Set RF IN/OUT connector must not exce

AM Transmitters1279. Set AFGen1 Lvl measurement units to dBm. 10. Increase AFGen1 Lvl by 20 dB.Displayed AM depth should not exceed 100%.11. Change AF

AM Transmitters128AM Audio Distortion Measurement DescriptionThis procedure is used to measure an AM Transmitter’s audio frequency harmonic distortion

Contents122 Measurements ConsiderationsMeasurement Guideline 1 44Measurement Guideline 2 45Measurement Guideline 3 46Measurement Guideline 4 48

AM Transmitters129Measurement Procedure:1. Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not excee

AM Transmitters130AM Harmonics and Spurious Output Measurement DescriptionThis procedure is used to measure an AM Transmitter’s conducted harmonic and

AM Transmitters131Measurement Procedure:1. Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not excee

AM Transmitters1327. Select SPEC ANL screen.8. Set Span to 1.1 MHz. 9. Set Ref Level to place the carrier peak at the top graticule line. To set Ref L

AM Transmitters133AM Envelope Display Measurement DescriptionThis procedure is used to measure an AM Transmitter’s AM envelope. In order to display th

AM Transmitters134Measurement Procedure:1. Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not excee

AM Transmitters135On the Test Set using the knob and data entry keys:8. Set Tune Mode to Manual. 9. Set Tune Freq to a frequency 20 kHz higher than pr

AM Receivers136AM ReceiversThe following measurements are provided for testing AM Receivers. The procedures are arranged in the order that tests are t

AM Receivers137AM Audio Output Power Measurement DescriptionThis procedure is used to measure an AM Receiver’s maximum audio output power (or rated ou

AM Receivers138Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and d

13Contents3 Testing FM RadiosIntroduction 50List of Tests 51FM Transmitters 52FM Receivers 79

AM Receivers139On the Radio set the Receiver’s Controls as follows:9. Set power to ON. 10. If required, set frequency to the same value as step 4.11.

AM Receivers140AM Sensitivity Measurement DescriptionThis procedure is used to measure an AM Receiver’s receiver sensitivity. Sensitivity is displayed

AM Receivers141Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and d

AM Receivers142On the Radio set the Receiver’s Controls as follows:9. Set power to ON. 10. If required, set frequency to the same value as step 4.11.

AM Receivers143AM AGC Measurement DescriptionThis procedure is used to measure an AM Receiver’s Automatic Gain Control (AGC). A reference is establish

AM Receivers144Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and d

AM Receivers14517. Decrease the receiver’s volume control until the AC Level meter reads−13 dB. 18. Select AC Level19. Press the REF SET key.20. Chang

AM Receivers146AM Squelch Sensitivity Measurement DescriptionThis procedure is used to measure an AM Receiver’s critical squelch and maximum squelch s

AM Receivers147Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and d

AM Receivers148On the Test Set using the knob and data entry keys:15. Slowly increase the Amplitude until squelch just remains open. Critical Squelch

Contents144 Testing AM RadiosIntroduction 116List of Tests 117AM Transmitters 118AM Receivers 136

AM Receivers149AM Audio Frequency Response Measurement DescriptionThis procedure is used to measure an AM Receiver’s audio frequency response. A refer

AM Receivers150Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and d

AM Receivers151On the Test Set using the knob and data entry keys:15. Select AC Level.16. Press the REF SET key. 17. Change AFGen1 Freq from 300 Hz to

AM Receivers152AM Audio Distortion Measurement DescriptionThis procedure is used to measure an AM Receiver’s audio distortion. Distortion is measured

AM Receivers153Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and d

AM Receivers154On the Test Set using the knob and data entry keys:14. Change SINAD meter to read Distortion. Distortion is displayed as shown. 15. Sel

AM Receivers155AM Spurious Response Attenuation Measurement DescriptionThis procedure is used to measure an AM Receiver’s spurious response attenuatio

AM Receivers156Measurement Procedure:CAUTION: Before connecting the Signal Generator, set RF Output power to OFF (ormaximum attenuation).1. Connect th

AM Receivers157On the Test Set using the knob and data entry keys:14. Decrease Amplitude until the SINAD meter reads 10 dB. ❒ If desired, use the mete

AM Receivers158On the Signal Generator:17. Set RF Power to ON.18. Set Output Level to 31.6 mV.19. Set Output Frequency to lowest frequency being check

15Contents5 Testing SSB RadiosIntroduction 160List of Tests 161SSB Transmitters 162SSB Receivers 173

1595Testing SSB Radios

Introduction160Introduction Each procedure may contain the following information: • A brief measurement overview and a reference to applicable TIA/EIA

List of Tests161List of TestsSSB Transmitter Measurements "SSB Frequency or Frequency Error Measurement" on page 163."SSB Rated Output

SSB Transmitters162SSB TransmittersThe following measurements are provided for testing SSB Transmit-ters. The procedures are arranged in the order tha

SSB Transmitters163SSB Frequency or Frequency Error Measurement This procedure is used to measure a SSB Transmitter’s frequency (or frequency error) i

SSB Transmitters164Measurement Procedure:1. Connect the Transmitter Under Test as shown. CAUTION: The RF present at the Test Set RF IN/OUT connector m

SSB Transmitters165On the Test Set using the knob and data entry keys:8. Set AFGen1 Lvl until a measurable RF signal is displayed (typically>5-10 m

SSB Transmitters166SSB Rated Output Power/Carrier Suppression Measurement DescriptionThis procedure is used to measure a SSB Transmitter’s rated outpu

SSB Transmitters167Measurement Procedure:1. Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not exce

SSB Transmitters16810. Select SPEC ANL screen.11. Set Center Freq to transmitter frequency + 1 kHz (USB) or − 1 kHz (LSB) depending on side-band mode.

Contents166 Spectrum Analyzer MeasurementsIntroduction 188List of Measurements 189Using the Spectrum Analyzer 190Using the Tracking Generator 205

SSB Transmitters169NOTE: Test set up and cabling for this test are critical. RF feedback into theTransmitter audio input may cause the displayed wavef

SSB Transmitters170SSB Harmonics and Spurious Output Measurement DescriptionThis procedure is used to measure an SSB Transmitter’s conducted harmonic

SSB Transmitters171Measurement Procedure:1. Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not exce

SSB Transmitters1727. Select SPEC ANL screen.8. Set Span to 1.1 MHz. 9. Set Ref Level to place the carrier peak at the top graticule line. To set Ref

SSB Receivers173SSB ReceiversThe following measurements are provided for testing SSB Receivers. The procedures are arranged in the order that tests ar

SSB Receivers174SSB Audio Output Power and Distortion Measurement DescriptionThis procedure is used to measure an SSB Receiver’s audio output power an

SSB Receivers175Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and

SSB Receivers176On the Radio set the Receiver’s Controls as follows:10. Set power to ON. 11. Set mode to LSB or USB. 12. If required, set frequency to

SSB Receivers177On the Test Set using the knob and data entry keys:18. Set AF Freq meter to measure Distortion. 19. Select AC Level.20. Press the REF

SSB Receivers178SSB Sensitivity Measurement DescriptionThis procedure is used to measure an SSB Receiver’s receiver sensitivity. Sensitivity is displa

17Contents7 Oscilloscope MeasurementsIntroduction 234Using the Oscilloscope 235

SSB Receivers179Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and

SSB Receivers180On the Test Set using the knob and data entry keys:16. Change the value of RF Gen Freq until the AF Freq meter reads 1 kHz.On the Radi

SSB Receivers181On the Radio set the Receiver’s Controls as follows:21. Decrease the Receiver’s volume control until the AC Level meter reads−6 dB.On

SSB Receivers182SSB Squelch Sensitivity Measurement DescriptionThis procedure is used to measure an SSB Receiver’s critical squelch and maximum squelc

SSB Receivers183Measurement Procedure:1. Connect the Receiver as shown.On the Test Set:2. Press the PRESET key.3. Press the RX key.Using the knob and

SSB Receivers184On the Test Set using the knob and data entry keys:16. Change the value of RF Gen Freq until the AF Freq meter reads 1 kHz.On the Radi

SSB Receivers18521. Set Amplitude to −137 dBm and verify squelch closes. If not, repeat step 19. & step 20.22. Increase until the Receiver’s squel

SSB Receivers186

1876Spectrum Analyzer Measurements

Introduction188Introduction Each procedure may contain the following information: • A brief measurement overview and a reference to applicable TIA/EIA

Contents188 Configuring for MeasurementsPreparing the Test Set for DC Operation 244

List of Measurements189List of MeasurementsSpectrum Analyzer Measurements "Measuring Transmitter High/Low Power Signals" on page 191. "

Using the Spectrum Analyzer190Using the Spectrum AnalyzerThe Spectrum Analyzer can be used to measure signals from 400 kHz to 1 GHz, with variable spa

Using the Spectrum Analyzer191Measuring Transmitter High/Low Power SignalsThis procedure is provided as an overview of the optional Spectrum Analyzer’

Using the Spectrum Analyzer192Measurement Procedure:1. Connect the signal input to the RF IN/OUT or ANT IN connector. • Use the RF IN/OUT connector fo

Using the Spectrum Analyzer193Measurements Using the Main Control Fields:•From Controls select RF In if the input signal is connected to the RF IN/OUT

Using the Spectrum Analyzer194Measurement Using the Marker Control Fields:• Position positions the marker on the screen. Displayed marker Freq and Lvl

Using the Spectrum Analyzer195Measurements Using the Auxiliary Control Fields:•From Controls select Off to update the display after each sweep, or Pk

Using the Spectrum Analyzer196Field Strength MeasurementsDescriptionThis procedure is used to measure and calculate field strength with the Spectrum A

Using the Spectrum Analyzer197Measurement Procedure:1 Connect the Antenna to the ANT IN connector.CAUTION: Do not exceed the connector’s rated input o

Using the Spectrum Analyzer198Antenna:12 Rotate the Calibrated Antenna on each axis until the maximum input signal strength is achieved. Record the si

1HP 8920A & HP 8920BRF Communications Test Set,Application HandbookHP Part No. 08920-90126Printed in U. S. A.April 1996 Rev CDUPLETXRX PREV TESTS

19Contents9 ReferencesManuals 250Application Note 251Specifications and Standards 252

Using the Spectrum Analyzer199Calculate the Field Strength:13 Calculate Field Strength as follows: Field Strength (in dBµV) = Signal Level (step 7) +

Using the Spectrum Analyzer200Analyzing External Transmitter Inter-modulation DistortionThis procedures used to display, measure, and demodulate high-

Using the Spectrum Analyzer201NOTE: When two signals F1 and F2 are present in a system, they can mix with thesecond harmonics generated 2F1 and 2F2 an

Using the Spectrum Analyzer202Measurement Procedure:1. Connect the Antenna to the ANT IN connector. CAUTION: Do not exceed the connector’s rated input

Using the Spectrum Analyzer203Determine Distortion Products:8. Record the frequency and level of all signals of interest. If further analysis is desir

Using the Spectrum Analyzer204To Demodulate the Product:These steps are used to help determine which transmitter is causing the distortion.12. Positio

Using the Tracking Generator205Using the Tracking GeneratorThe Optional Tracking Generator allows for quick and accurate characterization of filters,

Using the Tracking Generator206Basic Measurements with the Tracking GeneratorThis procedure is provided as an overview of the optional Spectrum Analyz

Using the Tracking Generator207Measurement Procedure:1. Connect the signal input to the RF IN/OUT or DUPLEX OUT connector. CAUTION: Do not exceed the

Using the Tracking Generator208Measurements Using the Track Control Fields:•From Controls select Track.• Offset Freq sets the difference between the i

Contents2010 HP 8920A SpecificationsSignal Generator Specifications 255Audio Source Specifications 261RF Analyzer Specifications 262AF Analyzer Specif

Using the Tracking Generator209Measurements Using the Fixed Control Fields:•From Controls select Fixed.• RF Gen Freq sets the RF output frequency. • A

Using the Tracking Generator210Antenna Return Loss (VSWR) Measurement & TuningDescriptionThis procedure is used to measure the return loss of an a

Using the Tracking Generator211Measurement Procedure:1 Connect the bridge or coupler as shown.CAUTION: Do not exceed the connector’s rated input or pe

Using the Tracking Generator212Normalize (to remove the effects of the cables, bridge/coupler, etc.) as follows:12 From Controls, select RF Gen. 13 Se

Using the Tracking Generator213On the Test Set using the knob and data entry keys:20 From Controls, select Main. 21 Select Marker from the Choices fie

Using the Tracking Generator2141/4 Wave Coaxial Filter Tuning (Swept)This procedure is used to measure the notch depth and or band-pass of a 1/4 wave

Using the Tracking Generator215Measurement Procedure:1. Connect the Tee as shown. CAUTION: Do not exceed the connector’s rated input or permanent inst

Using the Tracking Generator216NOTE: Amplitude default of 0 dBm is typically sufficient for performingmeasurements on 1/4 Wave Coaxial Filters. The le

Using the Tracking Generator217On the Test Set using the knob and data entry keys:22. From Controls, select Main. 23. Select Marker from the Choices f

Using the Tracking Generator218Cable Fault LocationsThis procedure is used to locate breaks in coaxial cables using the Spectrum Analyzer/Tracking Gen

21Contents11 HP 8920B SpecificationsSignal Generator Specifications 285Audio Source Specifications 291RF Analyzer Specifications 292AF Analyzer Specif

Using the Tracking Generator219Measurement Procedure:On the Test Set:1. Insert the System Support Test Card (HP 11807A Option 100) into the Memory Car

Using the Tracking Generator22010. Press the PREV key to return to the TEST (Main Screen).11. Select Run Test.12. When prompted, connect the equipment

Using the Tracking Generator22113. Follow the displayed instructions to connect and remove the 50 Ω Termination at the Power Divider cable test port.

Using the Tracking Generator222Passive Cavity Insertion and Return Loss MeasurementThis procedure is used to measure the insertion loss and return los

Using the Tracking Generator223Measurement Procedure:1. Connect the Adapter as shown. CAUTION: Do not exceed the connector’s rated input or permanent

Using the Tracking Generator22417. Select Main from the Choices field. Pass Cavity:18. Connect the pass cavity as shown. 19. Adjust the tuning rod to

Using the Tracking Generator225Return Loss Bridge:21. Connect the Return Loss Bridge as shown. 22. From the Controls select Main.23. Select Auxiliary

Using the Tracking Generator226Measure/Adjust Return Loss as follows:30. Measure and record return loss31. Reverse the Pass Cavity output and input as

Using the Tracking Generator227Calculate the Return Loss in VSWR:34. Use the following chart to convert loss into VSWR: If Pass Cavity coupling loops

Using the Tracking Generator228Repeater System Effective Sensitivity Measurement DescriptionThis procedure is used to measure the effective sensitivit

Contents22

Using the Tracking Generator229Measurement Procedure:1. Connect the Repeater as shown.ALTERNATE CONNECTIONSIf your repeater does not employ a duplexer

Using the Tracking Generator230On the Repeater set the Receiver’s Controls as follows:9. Set power to ON. 10. If required, disable the COR (Carrier Op

Using the Tracking Generator231On the Test Set using the knob and data entry keys:17. Increase Amplitude until the SINAD meter again reads 12 dB. Effe

Using the Tracking Generator232

2337Oscilloscope Measurements

Introduction234Introduction Each procedure may contain the following information: • A brief measurement overview and a reference to applicable TIA/EIA

Using the Oscilloscope235Using the OscilloscopeThe built-in 50 kHz digital oscilloscope provides • multiple triggering formats (internal, external, an

Using the Oscilloscope236Oscilloscope OverviewThis procedure is provided as an overview of the Oscilloscope’s operation. The screen choices and displa

Using the Oscilloscope237to the RF IN/OUT or ANT IN connectors. • Audio In for a signal connected to the AUDIO IN connector. • Radio Int for a signal

Using the Oscilloscope238Measurements Using the Main Control Fields:• Vert/div selects the vertical amplitude per division. Units for this field are i

231Getting Started With The Test SetThis chapter provides the user with a general introduction to the instrument. Information provided includes a gene

Using the Oscilloscope239Measurement Using the Trigger Control Fields:•From Controls select the desired trigger source:• Internal uses the signal bein

Using the Oscilloscope240Measurements Using the Marker Control Fields:• Position positions the marker on the screen. Displayed marker Time and Lvl are

Using the Oscilloscope241The Delta marker function is performed by:1 Setting the marker to the first point desired.2 Position the cursor to the marker

Using the Oscilloscope242

2438Configuring for Measurements This chapter provides the information to configure and connect the Test Set to DC power and configure the instrument

Preparing the Test Set for DC Operation244Preparing the Test Set for DC Operation NOTE: Instructions for connecting the Test Set to AC power, or to an

Preparing the Test Set for DC Operation245CABLING RESTRICTIONSWhen cabling the DC connector, remember that varying wire gauge,type, and length will yi

Preparing the Test Set for DC Operation246Preparing the Test Set for Operation 1. Verify that the instrument is connected and configured to the approp

Preparing the Test Set for DC Operation2474. In the CONFIGURE screen, use the knob and data entry keys to set the fol-lowing parameters (as required):

Preparing the Test Set for DC Operation248

Conventions Used In This Manual24Conventions Used In This Manual The Test Set keys, screen titles, fields, and shifted functions are shown using the f

2499References This chapter contains a listing of all documents that have been referenced in this manual.

Manuals250Manuals • HP 8920A User's Guide• HP 8920B User's Guide• HP 11807A Option 001 Reference Guide• System Support Tests, HP 11807A Opti

Application Note251Application Note• Demonstration Procedures, HP 8920A RF Communications Test Set

Specifications and Standards252Specifications and Standards• ANSI/EIA 152-C-1988 - Minimum Standards for Land Mobile Communi-cation FM or PM Transmitt

25310HP 8920A Specifications

254Specifications describe the Test Set’s warranted performance and are valid over the entire operating/environmental range unless otherwise noted.Sup

Signal Generator Specifications255Signal Generator Specifications RF Frequency Range: 250 kHz to 1 GHz Accuracy and Stability: Same as reference oscil

Signal Generator Specifications256DUPLEX OUT Connector: Level Range: −127 to +7 dBm into 50Ω Level Accuracy: ±1.5 dB (typical ±1.0 dB for all levels)

Signal Generator Specifications257Spectral Purity Spurious Signals: For ≤1 dBm output level at DUPLEX OUT or ≤−25 dBm output level at RF IN/OUT: Harmo

Signal Generator Specifications258FM FM Deviation: Rates >25 Hz 100 kHz: for fc from 0.25 to < 249 MHz 50 kHz: for fc from 249 to < 501 MHz 1

Product Description25Product DescriptionThe Test Set is a single instrument that combines the features of 22 individual radio test instruments. The Te

Signal Generator Specifications259AM Frequency Range: 1.5 to 1000 MHz (usable to 250 kHz) AM Depth: For RF IN/OUT levels ≤−25 dBm or DUPLEX OUT levels

Signal Generator Specifications260TDMA Signal Generator (HP 8920D or 8920A with Option 050 and HP 83201A) Frequency Range: 824 MHz to 894 MHz Output L

Audio Source Specifications261Audio Source Specifications (These specifications apply to both internal sources) Frequency Range: dc to 25 kHz Accuracy

RF Analyzer Specifications262RF Analyzer Specifications RF Power Measurement Standard Frequency Range: 400 kHz to 1 GHz Measurement Range: 1 mW to 60

RF Analyzer Specifications263RF Frequency Measurement Measurement Range: 400 kHz to 1 GHz Level Range: RF IN/OUT: Standard: 1 mW to 60 W continuous 10

RF Analyzer Specifications264FM Measurement Frequency Range: 5 MHz to 1 GHz (usable to 400 kHz) Deviation: 20 Hz to 75 kHz Sensitivity: 2µV (15 kHz IF

RF Analyzer Specifications265AM Measurement Frequency Range: 10 MHz to 1 GHz (usable to 400 kHz) Depth: 0 to 95% Accuracy: ±5% of reading ±1.5% AM (50

RF Analyzer Specifications266SSB Measurement Frequency Range: 400 kHz to 1 GHz Bandwidth (3 dB): 20 Hz to 70 kHz Distortion and Noise: <3% at 1 kHz

RF Analyzer Specifications267TDMA Analyzer (HP 8920D or 8920A with Option 050 and HP 83201A) Frequency Range: 824 MHz to 894 MHz Input Level Range: RF

AF Analyzer Specifications268AF Analyzer Specifications Frequency Measurement Measurement Range: 20 Hz to 400 kHz Accuracy: ±0.02% plus resolution plu

Product Description26FeaturesThe features currently available for the Test Set include: • Synthesized AM/FM signal generator to 1000 MHz • Function ge

AF Analyzer Specifications269Distortion Measurement Fundamental Frequency: 1 kHz ±5 Hz Optional Frequency Range: 300 Hz to 10 kHz ±5% (Option 019) Inp

AF Analyzer Specifications270Audio Filters Standard < 20 Hz HPF 50 Hz HPF 300 Hz HPF 300 Hz LPF 3 kHz LPF 15 kHz LPF > 99 kHz LPF 750 µ de-empha

Oscilloscope Specifications271Oscilloscope Specifications Frequency Range: 2 Hz to 50 kHz (3 dB BW) Scale/Division: 10 mV to 10 V Amplitude Accuracy:

Spectrum Analyzer Specifications (Option 102)272Spectrum Analyzer Specifications (Option 102) Frequency Frequency Range: 400 kHz to 1 GHz Frequency Sp

Spectrum Analyzer Specifications (Option 102)273Tracking Generator (Included with Option 102) Frequency Range: 400 kHz to 1 GHz Frequency Offset: Freq

Spectrum Analyzer Specifications (Option 102)274Adjacent Channel Power (Included with Option 102) Relative Measurements: Level Range: Antenna In: −40

Spectrum Analyzer Specifications (Option 102)275Absolute Accuracy: RF power measurement accuracy for absolute in-channelpower: (for inputs > 200 mW

Signaling (Option 004)276Signaling (Option 004) Capability for generating and analyzing the following formats: CDCSS, DTMF, 1 TONE, 2 TONE, 5/6 TONE S

DC Current Meter (Option 103)277DC Current Meter (Option 103) Measurement Range: 0 to 10 A (usable to 20 A) Accuracy: The greater of 10% of reading af

Remote Programming (Option 103)278Remote Programming (Option 103) HP-IB: Hewlett-Packard’s implementation of IEEE Standard 488.2 Functions Implemented

Product Description27SpecificationsAbbreviated specifications for the Test Set are provided in "HP 8920A Specifications" on page 253 and &qu

Reference Oscillator Specifications279Reference Oscillator Specifications TCXO (Standard) Temperature: 1 ppm (0 to +55°C) Aging: < 2 ppm/year Warm-

Save/Recall Registers280Save/Recall Registers Approximately 128 kilobytes RAM available for non-volatile save/recall of settings. This typically will

General Specifications281General Specifications Size: 7.5 H x 13 W x 19 inches (188 H x 330 W x 456 D mm) Weight: 35 lbs (17.1 kg) fully optioned CRT

General Specifications282

28311HP 8920B Specifications Specifications describe the Test Set’s warranted performance and are valid over the entire operating/environmental range

284Supplemental Characteristics are intended to provide additional information useful in applying the instrument by giving typical, but non-warranted

Signal Generator Specifications285Signal Generator Specifications RF Frequency Range: 250 kHz to 1 GHz Accuracy and Stability: Same as reference oscil

Signal Generator Specifications286Output RF IN/OUT Connector: Standard: Level Range: −137 to −19 dBm into 50Ω Level Accuracy: ±1.2 dB (level ≥ −127 dB

Signal Generator Specifications287Spectral Purity Spurious Signals: For ≤1 dBm output level at DUPLEX OUT or ≤−25 dBm output level at RF IN/OUT: Harmo

Signal Generator Specifications288FM FM Deviation: Rates >25 Hz 100 kHz: for fc from 0.25 to < 249 MHz 50 kHz: for fc from 249 to < 501 MHz 1

The Test Set’s Features28The Test Set’s Features This section contains a brief description of the Test Set’s keys, connectors, controls, and screens.

Signal Generator Specifications289AM Frequency Range: 1.5 to 1000 MHz (usable to 250 kHz) AM Depth: For RF IN/OUT levels ≤−25 dBm or DUPLEX OUT levels

Signal Generator Specifications290TDMA Signal Generator HP 8920B Option 500 (includes HP 83201B) Frequency Range: 824 MHz to 894 MHz Output Level Rang

Audio Source Specifications291Audio Source Specifications (These specifications apply to both internal sources) Frequency Range: dc to 25 kHz Accuracy

RF Analyzer Specifications292RF Analyzer Specifications RF Power Measurement1 1. To achieve the specified accuracy when measuring power at the RF IN/O

RF Analyzer Specifications293RF Frequency Measurement Measurement Range: 400 kHz to 1 GHz Level Range: RF IN/OUT: Standard: 1 mW to 60 W continuous 10

RF Analyzer Specifications294FM Measurement Frequency Range: 5 MHz to 1 GHz (usable to 400 kHz) Deviation: 20 Hz to 75 kHz Sensitivity: 2 µV (15 kHz I

RF Analyzer Specifications295AM Measurement Frequency Range: 10 MHz to 1 GHz (usable to 400 kHz) Depth: 0 to 95% Accuracy: ±5% of reading ±1.5% AM (50

RF Analyzer Specifications296TDMA Analyzer HP 8920B Option 500 (includes HP 83201B) Frequency Range: 824 MHz to 894 MHz Input Level Range: RF In/Out:

AF Analyzer Specifications297AF Analyzer Specifications Frequency Measurement Measurement Range: 20 Hz to 400 kHz Accuracy: ±0.02% plus resolution plu

AF Analyzer Specifications298Distortion Measurement Fundamental Frequency Range: 300 Hz to 10 kHz ±5% Input Level Range: 30 mV to 30 Vrms Display Rang

2Copyright © Hewlett-Packard Company 1994Notice Information contained in this document is subject to change without no-tice.All Rights Reserved. Repro

The Test Set’s Features29The Test’s Sets Front-Panel FeaturesScreensThe CRT displays the various test screens, measurement results, waveforms, and mes

AF Analyzer Specifications299Audio Filters Standard < 20 Hz HPF 50 Hz HPF 300 Hz HPF 300 Hz LPF 3 kHz LPF 15 kHz LPF > 99 kHz LPF 750µs de-empha

Oscilloscope Specifications300Oscilloscope Specifications Frequency Range: 2 Hz to 50 kHz (3 dB BW) Scale/Division: 10 mV to 10 V Amplitude Accuracy:

Spectrum Analyzer Specifications (Option 102)301Spectrum Analyzer Specifications (Option 102) Frequency Frequency Range: 400 kHz to 1 GHz Frequency Sp

Spectrum Analyzer Specifications (Option 102)302Tracking Generator (Included with Option 102) Frequency Range: 400 kHz to 1 GHz Frequency Offset: Freq

Spectrum Analyzer Specifications (Option 102)303Absolute Level Measurements: Level: Results of absolute power in Watts or dBm are met by adding the AC

Signaling (Option 004)304Signaling (Option 004) Capability for generating and analyzing the following formats: CDCSS, DTMF, 1 TONE, 2 TONE, 5/6 TONE S

DC Current Meter305DC Current Meter Measurement Range: 0 to 10 A (usable to 20 A) Accuracy: The greater of 10% of reading after zeroing or 30 mA (leve

Remote Programming306Remote Programming HP-IB: Hewlett-Packard’s implementation of IEEE Standard 488.2 Functions Implemented: SH1, AH1, T6, L4, SR1, R

Memory Card Specifications307Memory Card Specifications Card Compatibility: Single industry standard PCMCIA slot accepts Type I or Type II SRAM and RO

Reference Oscillator Specifications308Reference Oscillator Specifications TCXO (Standard) Temperature: 1 ppm (0 to +55°C) Aging: < 2 ppm/year Warm-

The Test Set’s Features30Screens that are Standard to the Test Set•RX Test − receiver test screen with RF and audio output controls and receiver measu

General Specifications309General Specifications Size: 7.5 H x 13 W x 19 inches (188 H x 330 W x 456 D mm) Weight: 37 lbs (16.8 kg) fully optioned CRT

General Specifications310

Glossary311TERMS- Access- Accessing a screen or field means to display or go to it.Access- Accessing a screen or field means to display or go to i

Glossary312NPC No Primary CodeOSC OscilloscopeRF Radio FrequencyRFGen Radio Frequency GeneratorRIT Receiver Incremental TuningRX ReceiverSSB Si

313IndexNumerics1/4 Wave Coaxial Tuning (Swept), 21420 dB Quieting Sensitivity Measure-ment, 91AAdditional Measurement Information,48Additional Test E

Index314DData Entry Keys, 33DC Power Configuration, 244Determining Unknown AM TransmitterCarrier Frequency, 119Deviation Measurement, 56, 59, 65,67, 7

315IndexFrequency Measurement, 87,140FM Radio Testing, 48FM Receiver Testing, 79, 173FM Transmitter Testing, 52, 162Frequency Error Measurement, 163Fr

Index316IInstallation, 244Intermodulation Distortion, 200MManual Conventions, 24Maunal Contents, 24Maximum Squelch Sensitivity Mea-surement, 93, 145Me

317IndexPPassive CavityInsertion Loss Measurement, 222Return Loss Measurement, 222Performing Measurements, 247Presets, 48RRated RF Output Power Measur

Index318Spurious Response Attenuation Mea-surement, 111, 155Squelch Sensitivity Measurement, 146,182SSBAudio Output Power Measurement,174Carrier Suppr

The Test Set’s Features31Screens that Require an Option• Spectrum Analyzer − used to display the spectrum analyzer measurement function, with center f

319IndexVVariation Of Sensitivity With SignalFrequency Measurement, 87, 140

The Test Set’s Features32User KeysUser k1 - k5 keys − referred to as local keys, these keys enable you to instantly enable a field for fast or repetit

The Test Set’s Features33Data Function Keys•The INCR ÷ 10, INCR SET, and INCR X10 keys change the increment/decrement field value (units, tens, hundre

The Test Set’s Features34KnobsThe Cursor Control Knob• Moves the cursor to another field (rotate CW/CCW). • Selects fields, screens, and settings from

The Test Set’s Features35Screen Control KeysThese keys are used to access several instrument control and information screens.• RX key − displays the R

The Test Set’s Features36Instrument State Keys• LOCAL key − returns the instrument to manual control after HP- IB control is used. • RECALL key − list

The Test Set’s Features37Data KeysData Entry keys− used to enter or change alphanumeric data (0-9, A-F, “.”, “+”, or “−”) for measurements or field en

The Test Set’s Features38ConnectorsRF IN/OUT Connector − type-N female connector for output signals from the RF Generator, and input signals (60 Watts

3Manufacturer’s DeclarationThis statement is provided to comply with the requirements ofthe German Sound Emission Directive, from 18 January 1991.This

The Test Set’s Features39Non-Bracketed Keys and Memory Card SlotNon-Bracketed KeysThe POWER key − turns the instrument on or off.The SHIFT key is used

The Test Set’s Features40The Test Set’s Rear-Panel FeaturesConnectors• HP-IB Connector (optional) − 24-pin connector provides communication between th

The Test Set’s Features41• EXT SCOPE TRIGGER INPUT Connector − female BNC connector to input an external oscilloscope trigger. Maximum input level is

The Test Set’s Features42

432Measurements ConsiderationsThe following guidelines must be adhered to when performing any of the FM/AM/SSB Transmitter and Receiver, Spectrum Anal

Measurement Guideline 144Measurement Guideline 1 Connector ConsiderationsCAUTION: The RF present at any Test Set input connector must not exceed the s

Measurement Guideline 245Measurement Guideline 2 Cabling and Adapter ConsiderationsFor most FM, AM, and SSB measurements, only the standard Test Set w

Measurement Guideline 346Measurement Guideline 3 Special Test ConsiderationsInformation for performing any of the FM, AM, or SSB measurements:Coaxial

Measurement Guideline 347internal speaker connection, either the Test Set AUDIO IN signal must be connected across the speaker (in this case, enter th

Measurement Guideline 448Measurement Guideline 4Additional Measurement ConsiderationsPressing the PRESET and TX or RX keys at the beginning of each te

4Safety ConsiderationsGENERALThis product and related documentation must be reviewed for familiar-ization with safety markings and instructions before

493Testing FM Radios

Introduction50Introduction Each procedure may contain the following information: • A brief measurement overview and a reference to applicable TIA/EIA

List of Tests51List of TestsFM Transmitter Measurements "FM Off The Air Monitoring/Determining Unknown Transmitter Carrier Frequency" on pag

FM Transmitters52FM TransmittersThe following measurements are provided for testing FM Transmitters. The procedures are arranged in the order that tes

FM Transmitters53FM Off The Air Monitoring/Determining Unknown Transmitter Carrier Fre-quencyDescriptionThis procedure is used to locate, demodulate,

FM Transmitters54Measurement Procedure:1 Connect the Antenna to the ANT IN connector.CAUTION: Do not exceed the connector’s rated input or permanent i

FM Transmitters55Once the desired carrier is found: 7 From Controls, select Main.8 Select Marker from the Choices field.9 Use the Marker To field to s

FM Transmitters56FM Output Power, Deviation, and Frequency/Frequency Error Measurement DescriptionThis procedure is used to measure an FM Transmitter’

FM Transmitters57Measurement Procedure:1 Connect the Transmitter Under Test as shown. CAUTION: The RF present at the Test Set RF IN/OUT connector must

FM Transmitters588. Determine if actual frequency readout or frequency error is the desired measurement.❒ For actual frequency readout, continue with

5CAUTION A CAUTION note denotes a hazard. It calls attentionto an operationprocedure, practice, or the like, which, if not correctly performed oradher

FM Transmitters59FM Deviation and Symmetry Measurement This procedure is used to measure an FM Transmitter’s frequency deviation and deviation symmetr

FM Transmitters60Measurement Procedure:1 Connect the Transmitter Under Test as shown. CAUTION: The RF present at the Test Set RF IN/OUT connector must

FM Transmitters619 Record the displayed FM Deviation as Pk+. Calculate the Measurement:10 Calculate the Deviation Symmetry as follows: Deviation Symme

FM Transmitters62FM Microphone Sensitivity and Modulation Limiting Measurement DescriptionThis procedure is used to measure an FM Transmitter’s audio

FM Transmitters63Measurement Procedure:1 Connect the Transmitter as shown. CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed

FM Transmitters648 Set AFGen1 Lvl measurement units to dBm. 9 Increase AFGen1 Lvl by 20 dB.Displayed FM deviation should not exceed the Transmitter’s

FM Transmitters65FM CTCSS Encoder Frequency and Deviation Measurement DescriptionThis procedure is used to measure an FM Transmitter’s Continuous Tone

FM Transmitters66Measurement Procedure:1 Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed

FM Transmitters67FM CDCSS Coding and Deviation Measurements DescriptionThis procedure is used to analyze an FM Transmitter’s Continuous Digital Coded

FM Transmitters68Measurement Procedure:1 Connect the Transmitter as shown. CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed

6CERTIFICATION Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment from the factory. Hewlett-

FM Transmitters69NOTE: Because framing information to indicate when a code word is not sent, thedecoded data displayed can result in several possible

FM Transmitters70FM DTMF Encodes and Deviation Measurement DescriptionThis procedure is used to measure an FM Transmitter’s Dual Tone Multi-Frequency

FM Transmitters71Measurement Procedure:1 Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed

FM Transmitters72On the Radio:13 Key the Transmitter and keep keyed until the remaining steps are complet-ed.14 Press the desired DTMF key. The symbol

FM Transmitters73To Measure deviation of the DTMF on the Test Set: 15 Press the TX key.Tone deviation is displayed as FM Deviation. ❒ If decoding a se

FM Transmitters74FM Audio Distortion Measurement DescriptionThis procedure is used to measure an FM Transmitter’s audio frequency harmonic distortion

FM Transmitters75Measurement Procedure:1 Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed

FM Transmitters76FM Harmonics and Spurious Output Measurement DescriptionThis procedure is used to measure an FM Transmitter’s conducted harmonic and

FM Transmitters77Measurement Procedure:1 Connect the Transmitter as shown.CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed

FM Transmitters78To set Ref Level:• From the Marker screen, select Marker To Peak• Select Marker To Ref Level11 Tune Center Freq in 1 MHz steps anywhe

7LIMITATION OF WARRANTYThe foregoing warranty shall not apply to defects resulting from im-proper or inadequate maintenance by Buyer, Buyer-supplied s

FM Receivers79FM ReceiversThe following measurements are provided for testing FM Receivers. The procedures are arranged in the order that tests are ty

FM Receivers80FM Audio Output Power Measurement DescriptionThis procedure is used to measure an FM Receiver’s maximum audio output power (or rated out

FM Receivers81Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

FM Receivers82On the Radio set the Receiver’s Controls as follows:9 Set power to ON. 10 If required, set frequency to the same value as step 411 Set s

FM Receivers83FM SINAD, Receiver Center Frequency, and Modulation Acceptance Band-width Measurement DescriptionThis procedure is used to measure an FM

FM Receivers84Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

FM Receivers85Refer to the audio output specifications for the receiver being tested.On the Test Set using the knob and data entry keys:15 Decrease Am

FM Receivers86On the Test Set modulation acceptance bandwidth is displayed asAFGen1 To Deviation as shown. Modulation Acceptance BandwidthTo ScreenRX

FM Receivers87FM Variation Of Sensitivity With Signal Frequency Measurement DescriptionThis procedure is used to measure an FM Receiver’s usable bandw

FM Receivers88Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

8DECLARATION OF CONFORMITYManufacturer’s Name: Hewlett-Packard CompanyManufacturer’s Address: Spokane Division24001 E. Mission Ave.Liberty Lake, WA 9

FM Receivers89On the Radio set the Receiver’s Controls as follows:9 Set power to ON. 10 If required, set frequency to the same value as step 4.11 Set

FM Receivers90❒ If desired, use the meter averaging function for the SINAD indicator.a Select dB on the SINAD meter.b Press the AVG key.❒ If desired,

FM Receivers91FM 20 dB Quieting Sensitivity Measurement DescriptionThis procedure is used to measure an FM Receiver’s quieting sensitivity (20 dB redu

FM Receivers92Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

FM Receivers93On the Radio set the Receiver’s Controls as follows:9 Set power to ON. 10 If required, set frequency to same value as step 4.11 Set sque

FM Receivers94FM Critical and Maximum Squelch Sensitivity Measurement DescriptionThis procedure is used to measure an FM Receiver’s critical squelch a

FM Receivers95Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data

FM Receivers96On the Test Set using the knob and data entry keys:13 Slowly increase the Amplitude until squelch just remains open. Critical Squelch is

FM Receivers97FM CTCSS Sensitivity and Bandwidth Measurement DescriptionThis procedure is used to measure an FM Receiver’s Continuous Tone Coded Squel

FM Receivers98Measurement Procedure:1 Connect the Receiver as shown.On the Test Set:2 Press the PRESET key.3 Press the RX key.Using the knob and data