Hp 8920b Service Manual
Download and Read Hp 8920b Service Manual Schema Hp 8920b Service Manual Schema Spend your few moment to read a book even only few pages. Reading book is. Here is the Agilent / HP 8935 / E6380A unit. This unit was originally made for CDMA Base Station Testing but it makes an excellent Service Monitor.
. HP 8921A Cell Site Test Set User’s Guide Firmware Version A.15.00 and above SCREEN CONTROL INSTRUMENT STATE MSSG HELP CONFI HOLD PRINT ADRS SAVE MEAS DUPLE PREV TESTS LOCAL RECAL PRESE USER DATA FUNCTIONS DATA k1’ METER INCR INCR INCR ENTER k2’. Copyright © Hewlett-Packard Company 1995 Notice Information contained in this document is subject to change without notice. All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.
This material may be reproduced by or for the U.S. Government pursuant to the Copyright License under the clause at DFARS 52.227-7013 (APR 1988). Manufacturer’s Declaration This statement is provided to comply with the requirements of the German Sound Emission Directive, from 18 January 1991. This product has a sound pressure emission (at the operator position) -36 dBm, and set the tune frequency for that signal. Chapter 17, RF Analyzer Screen Field Descriptions TX Power Transmitter power measures RF power at the RF IN/OUT port. Operating Considerations Maximum signal levels at each port are printed on the front panel. Only the RF IN/OUT port can be used for measuring TX power on this screen.
When the is set to, four dashes (-) appear in place of digits. Chapter 17, RF Analyzer Screen Field Descriptions TX Pwr Zero The transmitter power zero function establishes a 0.0000 W reference for measuring RF power at the RF IN/OUT port.
RF power must not be applied while zeroing. Set the RF GENERATOR screen Ampli- tude field to off to prevent internal cross-coupling into the power detector while zeroing. Chapter 17, RF Analyzer Screen Field Descriptions.
RF Generator Screen. Chapter 18, RF Generator Screen Block Diagram Block Diagram Figure 93 RF GENERATOR Functional Block Diagram.
Chapter 18, RF Generator Screen Field Descriptions Field Descriptions rfgscrn.wmf Figure 94 The RF Generator Screen AC Level This measurement displays either rms potential (voltage) or audio power (Watts or dBm). Operating Considerations When the unit-of-measure is changed to measure AF power, the external load resistance must be specified. Chapter 18, RF Generator Screen Field Descriptions AFGen1 Freq This Audio Frequency Generator control sets the frequency for the first audio frequency sinewave generator. AFGen2 Freq This Audio Frequency Generator control sets the frequency for the second audio frequency sinewave generator. It can also be used to set the Function Generator’s frequency when the signaling encoder is used. Chapter 18, RF Generator Screen Field Descriptions AFGen2 To This Audio Frequency Generator control is used to set two values:. The upper field determines whether the AF signal modulates the RF Generator, or is output through the AUDIO OUT connector.
Chapter 18, RF Generator Screen Field Descriptions Atten Hold Attenuator hold prevents the fixed RF output attenuators from switching in and out, eliminating the loss of the output signal as the level is changed. This function is helpful when making squelch measurements. Operating Considerations When this function is set to, the RF output level is restricted to a range above.
Chapter 18, RF Generator Screen Field Descriptions Mod In To This modulation input field defines how an external modulation source is used with the RF Generator. Two fields are used:. The upper field determines whether the rear-panel MODULATION INPUT signal is set for AM or FM modulation of the RF GENERATOR. Chapter 18, RF Generator Screen Field Descriptions SINAD This is the default measurement for this field. Selecting this field displays the following measurement choices: SINAD Distortion SNR (Signal to Noise Ratio) AF Frequency DC Level Current - DC only Operating Considerations This is a priority control field. Chapter 18, RF Generator Screen Field Descriptions TX Freq Error TX Frequency This measurement displays transmitter frequency error or absolute transmitter frequency.
See Also Tune Mode field description, on page 297 'Displaying Measurements' on page 57 TX Power Transmitter power measures RF power at the RF IN/OUT port. Operating Considerations Maximum signal levels at each port are printed on the front panel. Chapter 18, RF Generator Screen Field Descriptions. RX Test Screen. Chapter 19, RX Test Screen Block Diagram Block Diagram Figure 95 The RX Test Fields and Their Functions. Chapter 19, RX Test Screen Field Descriptions Field Descriptions rxscrn.wmf Figure 96 The RX Test Screen NOTE: Since most of the measurements displayed are dependent on different field settings, the settings and values shown in the diagrams use the Test Set’s preset conditions. Chapter 19, RX Test Screen Field Descriptions AC Level This measurement displays either rms potential (voltage) or audio power (Watts or dBm).
Operating Considerations When the unit-of-measure is changed to measure AF power, the external load resistance must be specified. (Refer to the Ext Load R field description, on page The input for the ac level measurement on this screen is always the AUDIO IN connectors.
Chapter 19, RX Test Screen Field Descriptions AFGen1 To This Audio Frequency Generator control is used to set two values:. The upper field determines whether the AF signal modulates the RF Generator or is out- put through the AUDIO OUT connector. Chapter 19, RX Test Screen Field Descriptions Amplitude The amplitude field adjusts the amplitude of the RF Generator.
Operating Considerations This is a priority control field. Accessing the RX TEST or TX TEST screen overrides any changes made to this field in other screens. If a microphone is connected, and the amplitude is off, keying the microphone causes the amplitude to turn on to its previous level until the microphone is no longer keyed. Chapter 19, RX Test Screen Field Descriptions Filter 1 and Filter 2 Filters 1 and 2 select a variety of standard and optional filters. Selecting either field lists the choices available for that field. See Also Chapter 5, 'AF Analyzer Screen' Output Port Output port selects the desired RF Generator output port. Chapter 19, RX Test Screen Field Descriptions SINAD This measurement field is used to select and display any one of the following measurements: SINAD Distortion SNR (Signal to Noise Ratio) AF Frequency DC Level Current - DC only Operating Considerations This is a priority control field.
Service Screen NOTE: This screen is used for component-level troubleshooting by the manufacturer. This method of troubleshooting is not currently supported outside of the factory.
This screen allows you to monitor individual circuit node measurements and change various MUX and DAC latch settings for isolating faulty modules. To access the SERVICE screen, you must first access the CONFIGURE screen, then select from the. Chapter 20, Service Screen Field Descriptions Field Descriptions Counter Connection This field selects the desired circuit node to connect to the frequency counter.
Frequency This measurement field displays the frequency measurement for the circuit node shown in the field. Counter Connection Gate Time This field is used to adjust the frequency counter’s gate time. Chapter 20, Service Screen Field Descriptions RAM Initialize Selecting this field clears all SAVE registers and test programs that may be in RAM and resets all latches to their factory power-up configuration. Operating Considerations If you have saved one or more instrument setups using the SAVE function, using this function will permanently remove them. Chapter 20, Service Screen Field Descriptions.
Spectrum Analyzer Screen The SPECTRUM ANALYZER screen’s controls are arranged in four menus. The menus are accessed using the field. The field descriptions are grouped Controls by menu names. Assigning global USER keys to the most-used functions on the menus allows you to access the functions without having to change menus.
Chapter 21, Spectrum Analyzer Screen Field Descriptions Field Descriptions NOTE: The Spectrum Analyzer is optional on some Test Set models. Sascrn.wmf Figure 97 The Spectrum Analyzer Screen and Menus. Chapter 21, Spectrum Analyzer Screen Field Descriptions Spectrum Analyzer Main Menu Fields sascrn2.wmf Figure 98 Spectrum Analyzer Main functions Center Freq This field sets the tune frequency for the center of the screen. Operating Considerations This field also changes the frequency of the Tracking Generator’s and the RF Analyzer’s center frequency. Chapter 21, Spectrum Analyzer Screen Field Descriptions RF In/Ant This field selects the input port for the analyzer. Operating Considerations Maximum signal levels at each port are printed on the front panel.
CAUTION: Connecting a signal of 200 mW to the ANT IN port can cause instrument damage (although internal protection circuits can typically withstand a short-duration signal of 1 or 2 Watts). Chapter 21, Spectrum Analyzer Screen Field Descriptions RF Generator Menu Fields, Fixed Operation sascrn3.wmf Figure 99 Using the Spectrum Analyzer with the RF Generator Amplitude This field sets the amplitude of the RF Generator. Operating Considerations This is a priority control field. Accessing the RX TEST screen overrides the Amplitude setting on this screen. Chapter 21, Spectrum Analyzer Screen Field Descriptions Output Port This field selects the output port for the RF Generator.
Operating Considerations Maximum signal levels at each port are printed on the front panel. CAUTION: Applying reverse RF power to the DUPLEX OUT connector can damage the instrument. (A message is displayed when an overpower conditions occurs.) Whenever possible when testing transceivers, use the RF IN/OUT connector to prevent damage from accidental transmitter keying. Chapter 21, Spectrum Analyzer Screen Field Descriptions RF Generator Menu Fields, Tracking Operation sascrn4.wmf Figure 100 Using the Spectrum Analyzer with the Tracking Generator The Tracking Generator performs a frequency sweep operation. The start and stop frequencies are determined by the Main Menu setting. Chapter 21, Spectrum Analyzer Screen Field Descriptions Offset Freq Frequency offset (RF Generator) sets the difference between the instantaneous frequencies of the Tracking Generator and the center frequency of the Spectrum Analyzer.
Operating Considerations The offset can be a positive or negative value. When set to zero, the Tracking Generator produces a sweeping signal that matches the Spectrum Analyzer’s tune frequency. Chapter 21, Spectrum Analyzer Screen Field Descriptions Spectrum Analyzer Marker Menu Fields sascrn5.wmf Figure 101 Setting Markers on the Spectrum Analyzer Marker To:. Peak moves the marker to the highest peak and enters the location in the Position field. Chapter 21, Spectrum Analyzer Screen Field Descriptions Marker Measurements sascrn1.wmf Figure 102 Reading Measurement Results at the Spectrum Analyzer’s Markers Marker: Freq Marker frequency displays the frequency at the marker’s present position. Marker: Lvl Marker level displays the amplitude at the marker’s present position. Operating Considerations The marker’s level can be displayed in various units of measure.
Chapter 21, Spectrum Analyzer Screen Field Descriptions Spectrum Analyzer Auxiliary Menu Fields sascrn6.wmf Figure 103 Spectrum Analyzer Auxiliary Functions Input Atten Input attenuation sets the amount of input attenuation for the RF IN/OUT and ANT IN ports. This field performs two functions:. Chapter 21, Spectrum Analyzer Screen Field Descriptions Normalize This area performs three display operations:.
Save B saves the currently-displayed trace for the A-B operation. A only provides a continuously-updated display (the “normal” mode of operation). A-B displays the difference between the trace saved using Save B and the currently displayed trace.
Chapter 21, Spectrum Analyzer Screen Field Descriptions No Pk/Avg This field performs two functions: (peak hold) prevents the Spectrum Analyzer from erasing the previous Pk Hold trace each time it sweeps. This causes the traces to ‘build-up’ on the screen until or the MEAS RESET key is selected. Chapter 21, Spectrum Analyzer Screen Using the Spectrum Analyzer Using the Spectrum Analyzer Automatic Calibration During operation, the Spectrum Analyzer pauses for approximately 2 seconds every 5 minutes to recalibrate itself. This does not affect the accuracy of displayed measurements, but does cause a brief interruption of the displayed information during the process. Tests Screen.
Using program control, the Test Set can run radio tests by itself and control other instruments using the HP-IB or Serial Port. The HP 11807B Cell Site is an example this type of testing. Chapter 22, Tests Screen Description of the Tests Subsystem Tests Subsystem Screens When you press the TESTS key, you access the main TESTS screen. The other screens of the subsystem are accessed using the CUSTOMIZE TEST PROCEDURE: lists at the bottom of this screen.
SET UP TEST SET: TESTS Subsystem Screens. Chapter 22, Tests Screen TESTS (Main Menu) TESTS (Main Menu) tstmain.wmf Figure 104 The TESTS (Main Menu) Screen Cnfg External Devices Selecting this field displays the TESTS (External Devices) screen. Continue This field is used to restart a paused test. Description This field displays a description of the file chosen in the Select Procedure. Chapter 22, Tests Screen TESTS (Main Menu) Freq Channel Information Selecting this field displays the TESTS (Channel Information) screen. IBASIC IBASIC Cntrl Selecting this field displays the TESTS (IBASIC Controller) screen. Library This field displays the library information of the file chosen in the Select field.
Chapter 22, Tests Screen TESTS (Main Menu) Proc Save/Delete Procedure Selecting this field displays the TESTS (Save/Delete Procedure) screen. Program This field displays program information for the file chosen in the Select field. Procedure Filename: Run Test Selecting this field loads and runs the test chosen in the Select Procedure field.
Chapter 22, Tests Screen TESTS (Channel Information) TESTS (Channel Information) tstcinfo.wmf Figure 105 The TESTS (Channel Information) Screen This screen displays the channel frequencies to be tested. Chan# screen). When the cellular radio channel number is entered, the HP 11807B software automatically sets the channel frequencies when testing. You do not need to enter the RX and TX frequencies because they correspond directly to the channel numbers. NOTE: The tests you select determine the parameters that are required. Your radio test documentation provides details if you are using HP 11807 software.
Print All This field allows you to print the Test Set’s screen image. The order of tests is set up by selecting one or more tests from the complete list of available tests (such as selecting a subset of an entire HP 11807B package). The TESTS (Order of Tests) menu lets you select the radio tests you want to perform and the order in which the tests are done. Chapter 22, Tests Screen TESTS (Order of Tests) Delet Stp This field allows you to delete a step from the test list at the bottom of the screen.
Insrt Stp This field allows you to enter a step in the test list at the bottom of the screen. Operating Considerations When inserting a new test, you must select the where you want to insert a. (Pass/Fail limits None are sometimes referred to as specifications.) NOTE: The tests you select determine the specifications that are required. The HP 11807 documentation provides details if you are using HP 11807 software.
Chapter 22, Tests Screen TESTS (Pass/Fail Limits) Check This field is used to select whether the test will verify only upper, only lower, both, or none of the specified limits. Operating Considerations Selecting both upper and lower limits increases test time, but may be required for some tests. Chapter 22, Tests Screen TESTS (Save/Delete Procedure) TESTS (Save/Delete Procedure) tstsvdel.wmf Figure 109 The TESTS (Save/Delete Procedure) Screen After selecting a test sequence and defining the appropriate specifications, parameters, frequencies, and system configuration, you can save all that information as a procedure file for later use.
This screen is also used to delete procedures. This field is used to select where the program (code file) for the test procedure is stored. Code files are the main program files of the software, containing all of the test subroutines.
If an HP 11807 memory card is catalogued, the code file is preceded by a lower-case c. Other IBASIC programs may not require an associated library file.
Library files contain all of the channel, parameter, and test name information used with the code file. If an HP 11807 memory card is catalogued, the library file is preceded by a lower-case l. Chapter 22, Tests Screen TESTS (Execution Conditions) TESTS (Execution Conditions) tstexec.wmf Figure 110 The TESTS (Execution Conditions) Screen The TESTS (Execution Conditions) screen determines how tests are run. Chapter 22, Tests Screen TESTS (Execution Conditions) Autostart Test Procedure on Power-Up When set to, this field automatically loads and runs the specified procedure whenever the Test Set is turned on.
If this field is set to or the specified procedure cannot be loaded for any reason (such as, memory card not inserted, disk drive not connected), the Test Set will default to its normal power-on state. Chapter 22, Tests Screen TESTS (Execution Conditions) Output Results For This field selects which test results are output. The underlined entry is the active choice. All outputs all test results on to the location selected in the Output Results To: field. Most external devices use the HP-IB port for control.
A serial printer can be connected to the serial port for printing test results. NOTE: HP-IB Mode. The Mode field on the I/O CONFIGURE screen must be set to Control to access connected HP-IB instruments. Chapter 22, Tests Screen TESTS (External Devices) Addr This field is used to enter the instrument’s remote address. For HP-IB instruments, enter the full 3-digit address (such as 704).
Calling Name field is used to enter the instrument’s function (in upper-case Calling Name letters). Chapter 22, Tests Screen TESTS (External Devices) Inst# field lists the number of external devices that are configured for the Inst# tests in the current procedure. Main Menu Selecting this field returns you to the TESTS (Main Menu) screen. Model This field is used to enter the instrument’s model number.
Chapter 22, Tests Screen TESTS (Printer Setup) TESTS (Printer Setup) tstprint.wmf Figure 112 The TESTS (Printer Setup) Screen The TESTS (Printer Setup) screen determines how tests are run. Continue This field is used to restart a paused test.
FF at End: This field can only be controlled programmatically. Chapter 22, Tests Screen TESTS (Printer Setup) Lines/Page: This field is used to specify how many lines are printed per page. Main Menu Selecting this field returns you to the TESTS (Main Menu) screen. Model: This field is used to specify the type of printer used. If your printer is not listed in menu when you select this field, configure your printer to emulate Choices one of those that is listed.
Chapter 22, Tests Screen TESTS (Printer Setup) Printer Address: This field is used to specify the address of an HP-IB printer. This field is only displayed if the field is set to HP-IB. Printer Port: Printer Port: This field is used to select the port your printer is connected to. Chapter 22, Tests Screen TESTS (IBASIC Controller) TESTS (IBASIC Controller) tstibasc.wmf Figure 113 The TESTS (IBASIC Controller) Screen The IBASIC controller is used to run IBASIC programs.
This screen is also used as a stand-alone IBASIC computer. See the Instrument BASIC documentation for information about writing your own tests for the Test Set. Chapter 22, Tests Screen TESTS (IBASIC Controller) Clr Scr This field is used to clear the IBASIC controller screen. Continue This field is used to restart a paused test. Main Menu Selecting this field returns you to the TESTS (Main Menu) screen. Selecting this field runs the IBASIC program.
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Chapter 22, Tests Screen ROM Programs ROM Programs Using the Signal Strength Meter sigmeter.wmf Figure 114 The Signal Strength Meter Screen The Signal Strength Meter is accessed by loading and running the LVLMTR program. Select the TESTS (Main Menu) screen.
Chapter 22, Tests Screen ROM Programs Securing a Test Procedure The password option for securing a test procedure is accessed by loading and running the ROM program. This program is accessed by running the SECUREIT program. IBUTIL The password option for securing a test procedure is accessed by loading and running the ROM program. Chapter 22, Tests Screen ROM Programs.
TX Test Screen. Chapter 23, TX Test Screen Block Diagram Block Diagram Figure 115 TX TEST Functional Block Diagram. Chapter 23, TX Test Screen Field Descriptions Field Descriptions txscrn.wmf Figure 116 The TX Test Screen.
Chapter 23, TX Test Screen Field Descriptions AF Anl In Audio Frequency Analyzer input selects the input for the analyzer. When selected, this field displays a list of choices. Signals can be analyzed from three different types of inputs:.
The output of the AM, FM, or SSB demodulators. Chapter 23, TX Test Screen Field Descriptions AF Freq This is the default measurement for this measurement field. Selecting this field displays the following measurement choices: SINAD Distortion SNR (Signal to Noise Ratio) AF Frequency DC Level Current - DC only Operating Considerations This is a priority control field. Chapter 23, TX Test Screen Field Descriptions AFGen1 Freq This Audio Frequency Generator control sets the frequency for the first audio frequency sinewave generator. AFGen1 Lvl This Audio Frequency Generator control sets the level out the AUDIO OUT connector in volts rms (across a low-impedance output), or in mW, W, or dBm across a 600-ohm load (mW is selected by pressing SHIFT, ENTER). Chapter 23, TX Test Screen Field Descriptions Detector This setting selects the type of detector used when measuring and displaying AF signal levels. Detector Types.
RMS displays the RMS value of signals. RMS.SQRT2 displays the RMS value of a signal multiplied by. Chapter 23, TX Test Screen Field Descriptions Distn This field displays the percent of distortion. The Distortion measurement is only for a 1 kHz signaling tone. Ext TX Key This field controls a switch at the MIC/ACC connector.
Its intended use is to “key”. Chapter 23, TX Test Screen Field Descriptions Input Port This field selects the RF IN/OUT or ANT IN port for making RF measurements.
The RF IN/OUT port must be used for making measurements on this TX Power screen. Operating Considerations Maximum signal levels at each port are printed on the front panel. Chapter 23, TX Test Screen Field Descriptions SINAD This field is only visible when SINAD is selected from the AF Freq field on the display area of the TX TEST screen. This field displays the measured SINAD of the input signal. Tune Freq RF Analyzer tune frequency sets the center frequency for the RF signal to be analyzed. Chapter 23, TX Test Screen Field Descriptions TX Freq Error, TX Frequency This measurement area is used to display transmitter frequency error or transmitter frequency. See Also Tune Mode field description (this page) TX Power Transmitter power measures RF power at the RF IN/OUT port.
Operating Considerations Maximum signal levels at each port are printed on the front panel. Chapter 23, TX Test Screen Field Descriptions TX Pwr Zero The transmitter power zero function establishes a 0.0000 W reference for measuring RF power at the RF IN/OUT port. CAUTION: RF power must not be applied while zeroing. Set the RF GENERATOR screen Amplitude field to off to prevent internal cross-coupling into the power detector while zeroing Operating Considerations When power is applied to the RF IN/OUT connector, the temperature of the. Connector, Key, and Knob Descriptions. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions Connector Descriptions ANT IN The antenna input is used for analyzing low-power RF signals ( 200 mWatts), and is typically used for off-the-air measurements. This port can be selected in the TX TEST, DUPLEX TEST, RF ANALYZER, or SPECTRUM ANALYZER screens.
Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions AUDIO IN Two connectors are used to input audio signals to the AF Analyzer:. HI is the main audio signal input connection. LO is used for the audio signal reference. Three choices are available using the AF AN- ALYZER screen’s Audio In Lo field:. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions AUDIO MONITOR OUTPUT This connector provides an external output from various tap points in the AF Analyzer.
Operating Considerations field in the AF ANALYZER screen determines the source of this Scope To signal. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions Chassis Ground The rear-panel chassis ground terminal provides a general chassis connection, as well as providing a safety ground when dc power is used.
Hp 8920b Service Monitor
WARNING: To prevent a potential shock hazard, always connect the chassis ground terminal to earth ground when operating this instrument from a dc power source. The male counterpart to this connector is included in the Connector Kit accessory. ( See 'Accessories' on page 535 The following HP parts can also be ordered to assemble the male counterpart to this connector: Connector housing: 1251-4782 (1 required).
Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions DUPLEX OUT This connection is an output for the RF Generator and Tracking Generator. Operating Considerations Output impedance = 50 The RF Generator’s output is selected in the field. This field is Output Port available in the RX TEST, DUPLEX TEST, RF GENERATOR, and SPECTRUM ANALYZER screens. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions HP-IB This connector allows communication between the Test Set and other instruments or computers using the Hewlett-Packard Interface Bus (HP-IB).
See Also Chapter 12, 'I/O Configure Screen' HP 8920 Programmer’s Guide MEMORY CARD Slot This front-panel opening is where memory cards are inserted. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions To Use the Microphone To modulate the RF Generator using the optional microphone (HP part number 9): 1. Connect the microphone to the MIC/ACC connector. Access the RF GENERATOR screen. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions mic-con.wmf Figure 117 MIC/ACC Connections See Also Chapter 18, 'RF Generator Screen' Chapter 7, 'Configure Screen' Chapter 17, 'RF Analyzer Screen'. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions MODULATION INPUT This connector provides an external modulation connection to the RF Generator.
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Operating Considerations Input impedance = 600 Maximum input level = 12 V peak Full scale input = 1 V peak field of the RF GENERATOR screen sets the type of modulation Mod In To (AM or FM) and sensitivity (%AM/Vpk or kHz/Vpk) for this connection. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions 1.
Data 1 (Least Significant Bit) 3. Data 8 (Most Significant Bit) 10. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions RADIO INTERFACE This connector is optional on all Test Sets. This connector provides parallel communications between the Test Set and external radio equipment.
The connector provides a 16-line parallel digital interface that you can configure as inputs, outputs, or a combination of inputs and outputs. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions The pin numbers for the radio interface connector are listed on the connector and in figure 118 on page 519. Pin assignments are as follows: 1. No Connection 3.
The status of the interrupt lines can be read from the RADIO INTERFACE screen or by an HP-IB or IBASIC program. Al- so, one of the interrupts can be designated as the HP-IB service request (SRQ) in- dicator. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions 15. Parallel Data In/Out. You can designate these pins as outputs or inputs with the I/O CONFIG field of the RADIO INTERFACE screen. Pins designated as inputs are pulled high by the Test Set.
RJ-11 Connectors. RJ-11 cables and adapters can be wired several ways. If you buy a cable or adapter other than the HP parts listed, verify the connections for the pins indicated in the following table before connecting cables to the instruments. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions The following table lists connections for the primary serial port (address 9).
When using both ports at the same time, you need to locate or fabricate an adapter to provide the necessary connections. Test Set RJ-11 Terminal/PC Terminal/PC. Chapter 24, Connector, Key, and Knob Descriptions Connector Descriptions 10 MHz REF INPUT This connection allows you to input an external reference. Operating Considerations Input frequency = 1, 2, 5, or 10 MHz Input level 0.15 V rms Input impedance approximately 50. When a valid signal is applied to the 10 MHz REF INPUT, the Test Set automatically switches from internal to external reference. Chapter 24, Connector, Key, and Knob Descriptions Key Descriptions Key Descriptions DATA Keys The DATA keys have four main uses:.
The 0 to 9,. , +/-, and A to F keys are for entering and changing values.
Chapter 24, Connector, Key, and Knob Descriptions Key Descriptions DATA FUNCTIONS Keys INCR ³10, INCR SET, and INCR 10 are used to change the increment or decrement a value when changing field values. Up-arrow and down-arrow keys increment or decrement field values. These keys are also used to select alternate field entries without displaying the Choices menu used by some fields. Chapter 24, Connector, Key, and Knob Descriptions Key Descriptions INSTRUMENT STATE Keys LOCAL returns the instrument to manual control after HP-IB control is used. RECALL lists any instrument setups that were saved. MEAS RESET clears the measurement “history” for all of the instrument’s measure- ment algorithms (such as the averaging function) to restart all measurements that are in progress. Chapter 24, Connector, Key, and Knob Descriptions Key Descriptions Miscellaneous Keys and Buttons.
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SHIFT is used to select the blue-labeled functions listed above some keys (such as PRINT, CONFIG, RELEASE, EEX and so forth). CANCEL is used to cancel an entry in progress, or to stop a running IBASIC program. For example, if you press RECALL to recall an instrument setup, and then decide not to recall a setting, pressing CANCEL exits the recall procedure. Chapter 24, Connector, Key, and Knob Descriptions Knob Descriptions Knob Descriptions.
CURSOR CONTROL has three functions: 1. Moving the cursor. Selecting fields, screens, and settings from a list of choices. Changing numeric field values. VOLUME controls the speaker volume for monitoring the AF Analyzer’s selected in- put.
Modifications, Accessories, Manuals, Support. Hardware Upgrades and Modifications You can install several options in your Test Set or have Hewlett-Packard install them for you. If you want HP to install the options, contact the nearest regional sales office listed at the end of this chapter. OPtion 603: CDMA/CDPD MDBS Cell Site Test System, order HP Option 603 83205 Option 003 a.Replaces C-Message weighting filer, should be ordered for TACS base station test. Cannot be installed in HP 8921A with Option 042. Cannot be ordered with Option 020.
Chapter 25, Modifications, Accessories, Manuals, Support Modifications Firmware Upgrades Table 15 Firmware Upgrades Description HP 8921A Operating System and Signaling ROMs Option 004 Tone/Digital Signaling. For HP8920A/21A with S/N 3546A and includes R98. For HP8920A/21A with S/N 3456A.
DC Power Connector Housing (Qty 1) 1251-4782 DC Power Connector Contacts 1252-0385 (Qty 2) System Rack Mount Flange Kit (Option 908) 5061-4846 Rack mount kit for HP 8920D or 7 HP 8921D Padded Carrying Case 1540-1130 Hardshell Transit Case 3 Passive Oscilloscope Probe HP 10435A (1 M /7.5pF 10:1). 256 KByte OTP Memory Card HP 85703A 512 KByte OTP Memory Card HP 85706A Allows rack mounting of Cellular Adapter (example: HP 83201A) to HP 8920, HP 8921. SRAM = Static Random Access Memory OTP = One Time Programmable (PROM). Chapter 25, Modifications, Accessories, Manuals, Support Accessories External Monitor The CRT’s Video Output drives a multisync monitor at 19.2 kHz (analog).
Examples of this type of monitor include the Electrohome ECM 1410-DMS 14-inch color monitor and the EVM 1242-P4VID 12-inch monochrome monitor. Table 17 Manuals Description Language Option HP 8921A Quick Reference Man- English 0 Quick Reference Card English 4 HP 8921 User’s Guide English 2 Instrument BASIC Lan- English E2083-90000 guage Reference Programmer’s Guide English 4 Assembly Level Repair English 8 Manual User’s Guide. The Radio Test Software performs automated tests on radios used in various radio communication systems. Each test package is contained on an individual memory card. The HP 11807B Cell Site Test Software performs automated tests on cell site base stations.
This Software is used with the HP 8921A. Chapter 25, Modifications, Accessories, Manuals, Support Accessories Power Cables Plug Descriptions HP Part # Plug Type Cable Descriptions male/female (cable &plug) Straight/Straight 8120-1689 79 inches, mint gray 79 inches, Straight/90 8120-1692 mint gray Used in the following locations Afghanistan, Albania, Algeria, Angola, Armenia, Austria, Azerbaijan, Azores.