Communications Service Monitor benefits 2945A with phase noise si

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Communications Service Monitor benefits 2945A with phase noise si

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2948 Phase Noise
Communications Service Monitor
benefits 2945A with phase noise signal generator, more critical receiver testing
phase noise signal generator High stability reference oscillator (OCXO) standard Accurate power measurement Transient harmonic analysis Fast response high resolution charts peaking nulling Tracking generator with full offset tracking Full span spectrum analyzer with `live' look listen
Field Operation under 2948 lightens load remote sites. shape 2948 ideal carrying; side handle ensures that instrument clear stairs when ascending buildings 2948's depth suitable instrument operated comfortably when placed floor. optional bail handle also available. This option allows stowage cover fitted over front panel storage adapters further protection instrument's front panel. Full operation possible from protective `ever-ready' case that your investment protected from transit damage. Stored settings recalled from internal memory from memory card allowing fast straightforward setting Fast Full Performance Spectrum Analyzer provided standard
2948 Communications Service Monitor lightest, most rugged service monitor available with phase-noise signal generation. field work, 2948 provides excellent combination instruments types maintenance work. workshop provides performance would expect exacting measurements. Phase-Noise Signal Generator 2948 differs from 2945A cousin providing phase-noise signal generator standard. This enhanced capability allows accurate measurement noise characteristics receivers especially beneficial when making accurate measurement narrow band receivers. performance 2948 enables signal-tonoise measurements better than made receivers with 12.5 channel spacing.
spectrum analyzer provides spans from division division also fully adjustable reference level. Speed comparable with analog analyzers, allowing real time adjustments over displayed dynamic range. With tracking generator provided standard, duplexers filters aligned quickly easily. offset facility provides testing equipment with fre-
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quency translation. Channel stepping performed defining increment then using FREQ keys. This particularly useful when testing multi-channel systems. Live Look Listen This feature puts 2948 above peers with ability examine signals screen demodulate them simultaneously. Intermittent interference isolated quickly signals then easily identified. trace saved memory card along with time date, providing factual evidence that recalled later. This feature particularly useful when looking rogue transmissions, especially busy base station sites. From Watts 2948 measures power level signals such those encountered when monitoring off-air signals those found when probing circuit. Watts measurement provided without need external attenuators, high power base stations measured directly. Measurement accuracy better than guaranteed down N-Type connector, allowing cellular radios qualified power levels. Accurate Signals signal generator provides coverage from 1.05 with output overrange) fast switching speed. Level accuracy levels above -127 dBm. Duplex provided standard Full duplex operation provided 2948. This allows testing duplex radios well simultaneous testing repeater transmit receive paths. There restrictions duplex offset. Cellular Trunking built AMPS, TACS analog cellular standards available internally, with country variants provided each package. Trunking 1327/1343 variants them also available. trunking capability been added with introduction EDACSRadio Repeater test capability. Remote control inbuilt tests provided, that measurements started results logged automatically.
Remote Control RS-232 GPIB Remote control provided, with RS-232 interface standard. IEEE-488.2 interface (option fitted where other instruments required operate system with 2948. Printing Made Easy With parallel printer port interface, screen dumps, automatic test results previously stored results sent most parallel printers. These facilities available standard using serial RS-232 interface. screen capture facility available screen displayed 2948 saved direct serial port file. Autorun internal control With Analog Systems Card fitted, automatic testing without external controller possible. Custom tests written operator. Four programmable relay contacts provided with optional parallel printer interface. This allows remote control radios test fixtures from built-in automatic tests. Custom Programs Users program instrument suit their specific needs. This possible either configuring built-in programs using MI-BASIC interpreter produce customised test program that executed internally, without external controller.
Memory Card with real time clock memory card drive meets PCMCIA standard format cards. 2948 provides based filing system that allows transfer information fitted with memory card slot. Test setups, test results, screen dumps, spectrum analyzer co-ordinates test sequences stored memory card, allowing information easily stored retrieved when required. Reliability 2948 features high integration chassis designed maximise mechanical protection. Audio Analysis comprehensive range filters provided standard, including band pass, pass high pass. Optional filters available psophometric weighting audio signals demodulation signals simulated radio channel bandwidth. direct measurement CTCSS possible with filter, even with speech present.
Network Simulation 2948 simulates signalling protocol that radio would from real network. This allows calls handled enabling receiver transmitter parametric measurements made.
comprehensive audio generators provided standard internal modulation audio sources transmitter stimulus. External coupled provided. Comprehensive Oscilloscope Analysis audio signals, whether from demodulated signal audio input direct viewed further inspection. oscilloscope either combined with measurement screen test modes `zoomed' full screen display. Different levels persistence selected allow short long term effects captured.
SPECIFICATION
SIGNAL GENERATOR
FREQUENCY Frequency Range 1.05 Resolution Indication digit display Setting Keyboard entry, delta increment/decrement function rotary control Accuracy frequency standard
Transient Analysis ability capture transients rising falling edge waveform provides valuable tool fault finding radios radio systems. user full control trigger level input attenuation well timebase five fixed trigger points, making this feature simple flexible operate. Harmonic Analysis automatic harmonic analysis function included 2948. This complements fast spectrum analyzer allows rapid check that transmitter under test producing excessive harmonics. Tones Generation Decoding tones menus include full remote control that radio workshops further automate their tasks better control tones from level screens. POCSAG Decode built option Off-air decoding POCSAG signals provided option. This allows tone, numeric alphanumeric messages displayed. Signals with rates 4800 bits/s automatically decoded making 2948 ideal surveillance tool. 2948 detect messages, user selectable (just like pager), fixed message string.
OUTPUT LEVEL Output Level Range Test: N-Type socket: -141 socket: -115 (overrange dBm) Resolution Indication digits plus sign (dBm, dBµV, PD/EMF). Accuracy level above -127 N-Type socket Reverse Power Protection N-Type: minutes, normal operation. minute Overload indicated audible visual warning. BNC: Overload indicated audible visual warning. Output Impedance Nominally VSWR N-Type Better than 1.2:1 Better than 1.35:1 1.05 Better than 2.2:1 1.05
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SPECTRAL PURITY Residual Less than (0.3 kHz) Less than (0.3 kHz) 1.05 Harmonics Spurious Signals Better than Phase Noise offset) Better than -112 dBc/Hz Better than -108 dBc/Hz Carrier Leakage Less than generated load turn loop from case. Output level less than into sealed load. AMPLITUDE MODULATION INTERNAL Frequency Range 1.05 Depth Range Resolution Indication digits Setting Keyboard entry, delta increment decrement function rotary control Accuracy carrier frequencies from modulation frequency kHz. digit modulation frequency kHz. ±15% digit modulation frequencies from kHz. Distortion Less than CCITT weighted Modulation Frequency AMPLITUDE MODULATION EXTERNAL Input Impedance Nominally parallel with Frequency Range internal Modulation Frequency Range internal Sensitivity 100%
FREQUENCY MODULATION INTERNAL Frequency Range 1.05 Maximum Deviation Indication digits Setting Keyboard entry, delta increment/decrement function rotary control Accuracy modulating frequency ±10% modulating frequencies from Distortion Less than deviation kHz, CCITT weighted Modulation Frequency Range Resolution Pre-emphasis selectable FREQUENCY MODULATION EXTERNAL Input Impedance Nominally parallel with Frequency Range internal Modulation Frequency Range Pre-emphasis selectable Sensitivity VRMS deviation MICROPHONE INPUT Input Level (AGC levelled) Input Impedance Nominally Press Talk (PTT) When using optional microphone Test mode, will switch instrument Test.
AUDIO VOLTMETER
Input Impedance Nominally parallel with Frequency Range only Polarized (below
Maximum input voltage VRMS, Level Ranges sequence Digital readout also (user selectable) Resolution reading Indication digits bar-chart Accuracy resolution Accuracy
Resolution 0.1% distortion Indication digits bar-charts Accuracy reading 0.5% distortion Sensitivity (100 distortion) reading suppressed audio voltage less than
AUDIO METER
Range Resolution Indication digits bar-chart Accuracy Sensitivity (100 S/N) reading suppressed audio voltage less than
AUDIO FREQUENCY METER
Frequency Range Resolution less than above Indication digits Accuracy frequency standard digit resolution Sensitivity
AUDIO OSCILLOSCOPE
Operating Modes Single repetitive sweep Frequency Range kHz, coupled Voltage Range division sequence Voltage Accuracy full scale Ranges ±75, deviation full scale, ±10% accuracy Ranges division, ±10% accuracy Timebase µs/div s/div sequence Graticule Horizontal Vertical divisions Special features Built antialiasing circuitry variable decode trigger level
AUDIO SINAD METER
Frequency Range Resolution Indication digits bar-charts Accuracy Sensitivity (100 SINAD) reading suppressed audio voltage less than
AUDIO DISTORTION METER
Frequency Range
AUDIO CHARTS
Bar-chart Displays Voltage, SINAD, Distortion,
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Vertical Resolution full scale Ranging Autoranging, range hold manual selection sequence with hysteresis Audio Modulation Filters kHz, Lowpass Bandpass Highpass de-emphasis Lowpass filters applied) Audio Analyzer General Features Tones Mode
Resolution max, typically Accuracy (N-Type) ±10% resolution Maximum Continuous Rating N-Type: output: Antenna port: Intermittent Rating N-Type: limited periods, typically minute Overload indicated audible visual warning.
FREQUENCY METER
Frequency Range 1.05 (manual tune) (autotune) Resolution 1050 MHz, selectable MHz, selectable Indication digits Accuracy frequency standard resolution Acquisition Time Less than second (manual) Typically seconds (autotune) Sensitivity Autotuned (N-Type) 0.05 (Antenna port) Manual Tuned:-34 (N-Type) (Antenna port) VSWR N-Type: Better than 1.2:1 Better than 1.25:1 1.05 BNC: Better than 1.05
HARMONIC TRANSIENT ANALYSIS
Harmonic Measurement Displays harmonic selected carrier. Maximum Harmonic Frequency 1.05 Dynamic Range TRANSIENT POWER ANALYSIS Displays power profile against time Frequency Range 1050 Dynamic Range below spectrum analyzer reference level Scale (power) dB/div Scale (time) µs/division s/div Trigger Level Adjustable over full dynamic range trigger selection Pre-trigger 100% displayed period
POWER METER (BROADBAND)
Frequency Range 1.05 Dynamic Range (N-Type) 0.05 (Antenna port) Indication Units Watts, Indication digits bar-chart
MODULATION METER
Sensitivity Autotuned: (N-Type) 0.05 (Antenna port)
Manual Tuned:-34 (N-Type) (Antenna port) Audio Modulation Filters kHz, Lowpass Bandpass Highpass de-emphasis Lowpass filters applied) AMPLITUDE MODULATION Frequency Range 1.05 Modulation Frequency Range Depth Range (manually tuned) below from Resolution Indication digits bar-chart Accuracy(1) digit ±8.5% digit from Demodulation Distortion(1) Less than (CCITT weighted) Residual Less than (300 kHz) Demodulation Output peak peak FREQUENCY MODULATION Frequency Range 1.05 Modulation Frequency Range Deviation Range Resolution below deviation above deviation Indication digits bar-chart Accuracy(1) resolution modulation frequency ±7.5% resolution modulation frequencies
Demodulation Distortion Less than (CCITT weighted) Residual Less than (300 kHz) Demodulation Output Socket peak peak ±10% deviation
SPECTRUM ANALYZER
Frequency Range 1.05 Spans kHz/division MHz/division sequence continuously variable Start stop facility allows selection infinitely variable span width Resolution Bandwidth kHz, Reference Level (top screen) Displayed Dynamic Range Noise floor Typically below screen Screen Linearity Typically resolution dB/div) above noise floor Vertical Resolution dB/division dB/division Level Flatness resolution dB/div) Intermodulation Distortion Better than signals into first mixer Sweep Speeds ms/div ms/div sequence (optimum sweep speed bandwidth selected according span user selectable) Span 1000 Marker Indication Level frequency delta marker from centre line screen Single marker frequency level display. Marker centre frequency marker Features Simultaneous `Look Listen' spans kHz, kHz, kHz, Resolution Bandwidth Update (Sweeps/sec)
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Sensitivity Tracking Generator Offset/Frequency Range 0-999 MHz/400 1000
Signaling Encoder/Decoder Sequential tones functions including revert User defined tones Encodes decodes tones. CCIR, ZVEI, DZVEI, EEA, user defined. tones extended. Continuous, burst single step modes available. frequency plans defined stored within 2948 sequential tones. standard tone frequency plans copied user defined modified. Tone length Standard tone frequencies selected from menu. Generation decoding DTMF tones. Generation decoding (Digitally Coded Squelch). Generation POCSAG code CCIR No.1 584. rates from 4800 bit/s. Inversion available. AUDIO MONITOR Demodulated signals audio signals monitored internal loudspeaker accessory socket output front panel.
AUDIO GENERATORS
FREQUENCY Frequency Range (sine square) Setting Keyboard entry, delta increment decrement function rotary control Indication digits Resolution below 3.25 above 3.25
CELLULAR TRUNKING
Test Modes Auto test/manual test Auto Test Programs Call processing only Call testing Brief testing Comprehensive testing Parametric Auto Test Routines Accuracy 0.01 below above LEVEL Level Range VRMS Setting Keyboard entry, delta increment decrement function rotary control Indication digits Resolution below above Accuracy resolution Output Impedance Nominally (minimum load Distortion Less than 0.5% Less than from Frequency Deviation Distortion sensitivity Distortion Level Limiting Noise Signaling Auto Test Routines Registration/Roaming Update Place Call Page Mobile Clear from Land Clear from Mobile Handoff Hook Flash DTMF Decode Data Performance Deviation Frequency Duration Frequency Deviation DSAT Deviation Level frequency expansion SINAD Compression frequency Power Level Level SINAD
FREQUENCY STANDARD
Internal Frequency Standard (OCXO) Frequency Temperature Stability Better than parts 108, 55°C Ageing Rate Better than part 107, year, after month continous Warm Less than minutes within parts 20°C External Frequency Standard Input Frequency Input Level Greater than peak peak Input Impedance Nominally
Performance Criteria Safety Conforms with requirements Council Directive 73/23/EEC amended) product safety standard 61010-1 2001 2002 2003 Class portable equipment, Pollution Degree environment. instrument designed operated from Installation Category supply. CALIBRATION INTERVAL years ENVIRONMENTAL Rated Range 50°C relative humidity 40°C Storage Transport Temperature +71°C Altitude 2500 (pressurised freight differential) DIMENSIONS WEIGHT Height
GENERAL
Keyboard Display Logical color coded keyboard with bright high resolution fast Display Size RS-232C RS-232C interface provided printing remote instrument control Connector female Type POWER REQUIREMENTS Supply Voltage (Limit V~/98 Supply Frequency (Limit Maximum Power Supply Voltage Maximum Power CALIBRATION INTERAL years ELECTROMAGNETIC COMPATIBILITY Conforms with protection requirements Council Directive 89/336/EEC. Complies with limits specified following standard: IEC/EN61326-1 1997, Emission Class Immunity table
Width Depth (including handle, feet covers) Weight Less than (standard version)
OPTIONS ACCESSORIES
MATCHING UNIT (OPTION INPUT CIRCUIT Impedance Return Loss Frequency Response ±0.5 kHz, Accuracy input:output ratio accuracy 2945A, 2946A 2948 Maximum Input maximum maximum OUTPUT CIRCUIT Impedance Return Loss
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Frequency response ±0.5 Level Accuracy accuracy 2945A, 2946A 2948 Output Level across ANALOG SYSTEMS CARD (OPTION This option provides automatic testing cellular,trunked radios BASIC Interpreter customized tests. PARALLEL INTERFACE (OPTION Allows direct connection parallel printer. Additionally provides software programmable output lines. Printer Port Connector female type Printers Supported 100, dots inch laser printers, Epson format. Accessory Port Connector female type Outputs independently programmable output lines, each configurable logic line relay contact closure. supply available. GPIB (OPTION Capability printing, remote instrument control programming user defined test sequences. Complies with following subsets defined IEEE488:- SH1, AH1, SR1, RL1, DT0, MEMORY CARD DRIVE REAL TIME CLOCK (OPTION memory card facility allows storage results, set-ups screen dumps user programs with SRAM cards. Meets PCMCIA standard. Allows current date time stored with results memory card and/or printed with screen dump. DEMODULATOR (OPTION demodulator allows signals demodulated either internal loudspeaker accessory socket. Provides demodulation signals (upper lower sideband) Frequency Range Demodulation Range Distortion Typically less than (300 kHz) Detection Range
Features Automatic detection LSB. used tuning carrier radio's. OCCUPIED BANDWIDTH MEASUREMENT (OPTION Calculates bandwidth signal displayed spectrum analyzer. Frequency Range Display Resolution digits Accuracy Bandwidth Measurement Range minimum Ratio range selectable 0.1% steps CELLULAR SOFTWARE (OPTION Benelux Austria Malaysia Saudi Thailand Tunisia Poland Czech Slovenia USER DEFINED NMTF Spain Indonesia Saudi Oman Hungary Russia Bulgaria Turkey
AMPS CELLULAR SOFTWARE (OPTION E-AMPS USER DEFINED AMPS N-AMPS
TACS CELLULAR SOFTWARE (OPTION E-TACS C-TACS J-TACS USER DEFINED TACS TACS C-TACS N-TACS
1327 TRUNKING SOFTWARE (OPTION BAND WATER AUTONET MADEIRA MPT1327 USER DEFINED PMRTEST SOFTWARE (OPTION USER DEFINED radio's EDACSRADIO TEST SOFTWARE (OPTION Provides Auto/Manual test capability EDACSradios. User defined variants created stored, each with spot channel frequencies. EDACSREPEATER TEST SOFTWARE (OPTION Provides Auto/Manual test capability EDACSrepeaters. user defined variants created stored, each with spot channel frequencies. data logging facility also available continuously decode display data messages from repeater under test. EDACS Ericsson registered trademark. EDACS trunking licensee. HONG KONG NL-TRAXIS PH-INDO
POCSAG DECODE (OPTION Allows off-air decoding POCSAG messages. decode message received, decoding triggered from user selectable code fixed message pattern. Rate Automatically decodes standard rate 4800 bits/s. Numeric alphanumeric decoding provided. Number received errors displayed. CCITT FILTER (OPTION Allows CCITT filter inserted into either demodulated audio path audio input path. CMESS FILTER (OPTION Allows CMESS filter inserted into either demodulated audio path audio input path. AVIONICS (OPTION Provides amplitude modulated signals testing ILS, VOR, Marker Beacons SELCAL. (Full details Avionics features found 2946A data sheet, part number: 46891-030) BAIL ARM/FRONT COVER (OPTION Provides Bail carrying handle front panel cover storage area. Bail will also provide additional viewing angles when mounted bench.
Notes modulation levels residual AM/FM become significant.
Option Option Option Option Option Option Option Option
PMRTEST EDACSRadio Test EDACSRepeater Test POCSAG Decode CCITT Filter CMESS Filter Avionics Bail Front Panel Stowage Supply lead Supply lead Operating Manual
Supplied Accessories
Optional Accessories 44991/145 59000/189 59000/375 46662/571 46662/616 54112/163 54431/023 46884/728 54421/001 Microphone with Memory Card (128k) Memory Cadr `Ever-Ready' Case `Ever-Ready' Case with Option Hard Transit Case attenuator (BNC) Rack Mounting Telescopic Antenna Serial port control cable way) Serial port control cable way) RS-232 Printer cable way) Directional Bridge Directional Power Head MHz) Directional Power Head 1000 MHz) Wideband Amplifier (100 MHz) Service Manual
VERSIONS ACCESSORIES
When ordering please quote full ordering number information. Ordering Numbers Versions 2948 Options Option Option Option Option Option Option Option Matching Unit Analog Systems Card Parallel Interface GPIB Interface Memory Card Drive with real time clock demodulator Occupied Bandwidth Measurement
Note: Option required when ordering following options
46884/650 46884/649 46884/648
Low-Noise Communications Service Monitor
59999/170 54421/002 54421/003 54432/012 46880/082
Options fitted together. Options fitted together.
Option Option Option Option
Cellular AMPS Cellular TACS Cellular 1327 trunking
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CHINA Beijing Tel: [+86] (10) 6467 2761 2716 Fax: [+86] (10) 6467 2821 CHINA Shanghai Tel: [+86] (21) 6282 8001 Fax: [+86] (21) 62828 8002 FINLAND Tel: [+358] 2709 5541 Fax: [+358] 2441 FRANCE Tel: [+33] Fax: [+33]
GERMANY Tel: [+49] 8131 2926-0 Fax: [+49] 8131 2926-130 HONG KONG Tel: [+852] 2832 7988 Fax: [+852] 2834 5364 INDIA Tel: [+91] 5115 4501 Fax: [+91] 5115 4502 KOREA Tel: [+82] 3424 2719 Fax: [+82] 3424 8620
SCANDINAVIA Tel: [+45] 9614 0045 Fax: [+45] 9614 0047 SPAIN Tel: [+34] (91) Fax: [+34] (91) Burnham Tel: [+44] 1682 604455 Fax: [+44] 1682 662017
Stevenage Tel: [+44] 1438 742200 Fax: [+44] 1438 727601 Freephone: 0800 282388 Tel: [+1] (316) 4981 Fax: [+1] (316) 1360 Toll Free: 2352
always seeking improve products, information this document gives only general indication product capacity, performance suitability, none which shall form part contract. reserve right make design changes without notice. trademarks acknowledged. Parent company Aeroflex, Inc. ©Aeroflex 2004.
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Part 46891/019, Issue 08/04

Communications Service Monitor benefits 2945A with phase noise si

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