benefits 2945B with phase noise signal generator, more critical receiv
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2948B Noise Communications Service Monitor
benefits 2945B 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 Color transflective superfast with rapid refresh rate easy monitoring real time adjustment Tracking generator with full offset tracking Full span spectrum analyzer with `live' look listen
Field Operation under 2948B lightens load remote sites. shape 2948B ideal carrying; side handle ensures that instrument clear stairs when ascending buildings 2948B's depth suitable instrument operated comfortably when placed floor. large color transflective (improved sunlight readable) display aids operation under harsh viewing conditions. optional bail handle also available. This option allows stowage cover fitted over front panel storage adapters further protection instrument's front panel. selection cases available including hard transit case, standard soft carrying case integrated soft carrying/operational case allowing full operation without removal from protective case. Stored settings recalled from internal memory from memory card allowing fast straightforward Fast Full Performance Spectrum Analyzer Provided Standard
2948B Communications Service Monitor lightest, most rugged service monitor available with phase-noise signal generation. field work, 2948B provides excellent combination instruments types maintenance work. workshop provides performance would expect exacting measurements. Phase-Noise Signal Generator 2948B differs from 2945B `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 2948B enables signal-to-noise 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 genera-
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provided standard, duplexers filters aligned quickly easily. offset facility provides testing equipment with frequency translation. Channel stepping performed defining increment then using FREQ keys. This particularly useful when testing multi-channel systems. Live Look Listen This feature puts 2948B 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 2948B 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 2948B. This allows testing duplex radios well simultaneous testing repeater transmit receive paths. There restrictions duplex offset.
Printing Post Analysis 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 2948B saved direct serial port file. single trace dump command allows fast transfer spectrum analyzer, transient analysis trace transferred ordinate values detailed post-proccessing analysis. 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 range built-in programs using MI-BASIC interpreter produce customized test program that executed internally, without external controller.
Memory Card with real time clock memory card drive meets PCMCIA standard format cards. 2948B provides based filing system that allows transfer information fitted with memory card slot. Test setups, test results, screen dumps, spectrum analyzer coordinates, test sequences stored memory card, allowing information easily stored retrieved when required. PMR, Trunking Cellular 2948B provides extensive support various tone signaling systems used Professional Mobile Communications such DTMF, TONE REMOTE (Option), CTCSS. Also highly flexible user defined system enables instrument configured accommodate wide variety other tone formats that use. Additionally trunked networks supported with network signaling protocol simulations MPT-1327/1343, (available EDACS radio repeater measurements. Legacy analog cellular standards also available internally include AMPS, TACS with country variants provided. 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 2948B. Reliability 2948B features high integration chassis designed maximize mechanical protection. Audio Analysis comprehensive expanded range filter selection 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. standard notch filter provides normal distortion/SINAD measurements. Additional notch filters added enable distortion/SINAD measurements signals range where required.
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
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 2948B. 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. possible enter tones durations seconds directly, simplifying operation with some more extreme tones systems use. These other improvements response user feedback allow 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 2948B ideal surveillance tool. 2948B detect messages, user selectable (just like pager) fixed message string.
digit display Setting Keyboard entry, delta increment/decrement function rotary control Accuracy frequency standard 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 Atten Hold Facility modes only) Allows user define start point seamless generator operation across range (guaranteed minimum) Reverse Power Protection N-Type: minutes, normal operation. minute 20°C.
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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 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 digit modulation frequency ±15% digit modulation frequencies from 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.
Accuracy Sensitivity (100 SINAD) reading suppressed audio voltage less than
AUDIO VOLTMETER
Input Impedance Nominally parallel with Frequency Range only Polarized (below Maximum Input Voltage VRMS, Level Ranges sequence Digital readout also dBm, dBV, (user selectable) External load selectable compensation 100, 150, 300, Ohms Peak hold facility Resolution reading Indication digits chart Accuracy resolution Accuracy
AUDIO DISTORTION METER
Frequency (additional frequencies available with option Range Resolution 0.1% distortion Indication digits charts Accuracy reading 0.5% distortion Sensitivity (100 distortion) reading suppressed audio voltage less than
AUDIO METER
Range Resolution Indication digits chart
AUDIO FREQUENCY METER
Frequency Range Resolution less than above Indication digits Accuracy frequency standard digit resolution Sensitivity
Accuracy Sensitivity (100 S/N) reading suppressed audio voltage less than
AUDIO OSCILLOSCOPE
Operating Modes Single repetitive sweep Frequency Range kHz, coupled
AUDIO SINADMETER
Frequency (additional frequencies available with option Range Resolution Indication digits charts
Voltage Range division sequence Voltage Accuracy full scale Ranges ±75, deviation full scale, ±10% accuracy Ranges division, ±10% accuracy
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Timebase µs/div s/div sequence Graticule Horizontal Vertical divisions Special Features Built anti-aliasing circuitry variable decode trigger level
VSWR N-Type: Better than 1.2:1 Better than 1.25:1 1.05 BNC: Better than 1.05
POWER METER (BROADBAND)
Frequency Range
AUDIO CHARTS
chart Displays Voltage, SINAD, Distortion, Vertical Resolution full scale Ranging Auto-ranging, range hold manual selection sequence with hysteresis Audio Modulation Filters Lowpass filters Four independently configurable Lowpass filters LP1, LP2, LP3, that frequency point from 20000 (excluding band 1001 2999 Lowpass filters applied) de-emphasis Highpass filters Highpass, Highpass Bandpass filters combination LP1, LP2, LP3, Highpass filters Audio Analyzer General Features Tones Mode
1.05 Dynamic Range (N-Type) 0.05 (Antenna port) Indication Units Watts, Indication digits chart 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) (auto-tune) Resolution 1050 MHz, selectable MHz, selectable Indication digits Accuracy frequency standard resolution Acquisition Time Less than second (manual) Typically seconds (auto-tune) Sensitivity Auto-tuned (N-Type) 0.05 (Antenna port) Manual Tuned:-34 (N-Type) (Antenna port) Auto manual control input attenuator
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
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
MODULATION METER
Sensitivity Auto-tuned: (N-Type) 0.05 (Antenna port) Manual Tuned:-34 (N-Type) (Antenna port) Auto manual control input attenuator Audio Modulation Filters Lowpass filters Four independently configurable Lowpass filters LP1, LP2, LP3, that frequency point from 20000 (excluding band 1001 2999 Lowpass filters applied) de-emphasis Highpass filters Highpass, Highpass Bandpass filters combination LP1, LP2, LP3, Highpass filters AMPLITUDE MODULATION Frequency Range 1.05 Modulation Frequency Range Depth Range (manually tuned) below from Peak hold facility Resolution Indication digits chart Accuracy(1) digit ±8.5% digit from
Peak hold facility Resolution below deviation above deviation Indication digits 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
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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 center line screen Single marker frequency level display Marker center frequency marker Features Simultaneous `Look Listen' spans kHz, kHz, kHz, Sensitivity Tracking Generator Offset/Frequency Range 0-999 MHz/400 1000 Resolution Bandwidth Update (Sweeps/sec)
trol Indication digits Resolution below above Accuracy resolution Output Impedance Nominally (minimum load Distortion Less than 0.5% Less than from 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 2948B 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 Accuracy 0.01 below above LEVEL Level Range VRMS Setting Keyboard entry, delta increment decrement function rotary con-
CELLULAR TRUNKING
Test Modes Auto test/manual test Auto Test Programs (dependent upon which system use) Call processing only Call testing Brief testing Comprehensive testing Parametric Auto Test Routines 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 Deviation Frequency Duration Level frequency expansion SINAD Compression frequency Power Level Level SINAD
Handoff Hook Flash DTMF Decode Data Performance
Frequency Frequency Deviation DSAT Deviation
89/336/EEC. Complies with limits specified following standard: IEC/EN61326-1 1997, Emission Class Immunity table 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 +70°C Altitude 2500 (pressurized freight differential) DIMENSIONS WEIGHT Height Width Depth (including handle, feet covers) Weight Less than (standard version)
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
GENERAL
Keyboard Display Logical color coded keyboard with color 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 INTERVAL years ELECTROMAGNETIC COMPATIBILITY Conforms with protection requirements Council Directive
OPTIONS ACCESSORIES
MATCHING UNIT (OPTION INPUT CIRCUIT Impedance Return Loss Frequency Response ±0.5 kHz, Accuracy Input:Output Ratio accuracy 2945B 2948B Maximum Input maximum maximum OUTPUT CIRCUIT Impedance
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Return Loss Frequency Response ±0.5 Level Accuracy accuracy 2945B 2948B 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 N-AMPS USER DEFINED 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 HONG KONG NL-TRAXIS PH-INDO
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.
TRUNKING TEST SOFTWARE (OPTION Provides Auto/Manual test capability Trunked radios. (Planned availability 2006) 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 Option data sheet, Part number: 46891/213) TONE REMOTE (OPTION Provides configuration screens generation Tone Remote control signals PLUS DISTORTION NOTCH FILTERS BOARD (OPTION standard instrument supplied with notch Distortion Sinad measurements. This option allows user carry Distortion/Sinad measurements additional frequencies. additional notch frequencies anywhere band must stipulated time ordering. BAIL ARM/FRONT COVER (OPTION Provides Bail carrying handle front panel cover storage area. Bail will also provide additional viewing angles when mounted bench. OUTPUT (OPTION Allows access signal from rear instrument (Note: Incorporation this option replaces standard demod capability)
Notes
VERSIONS ACCESSORIES
When ordering please quote full ordering number information. Ordering Numbers 2948B 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
Versions Low-Noise Communications Service Monitor
-Note: Option required when ordering following options Option Option Option Option Option Option Option Option Option Option Option Option Option Option Option Option Cellular AMPS Cellular TACS Cellular 1327 trunking PMRTEST EDACS Radio Test EDACS Repeater Test Trunking POCSAG Decode CCITT Filter CMESS Filter Avionics Tone Remote Plus Distortion Notch Filters board** Bail Front Panel Stowage Output Capability Supply lead Supply lead Operating Manual Optional Accessories 44991/145 59000/189 59000/375 Microphone with Memory Card (128k) Memory Card
modulation levels residual AM/FM become significant.
Supplied Accessories
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46662/779 46662/571 46662/616 54112/163 54431/023 46884/728 54421/001 46884/650 46884/649 46884/648 59999/170 54421/002 54421/003 46880/115
Soft carrying case (suitable 2948/2948B) Soft carrying/optional case Soft carrying/optional 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) Service Manual
Options fitted together. Options fitted together. Option standard instrument supplied with notch Distortion Sinad measurements. This option allows user carry Distortion/Sinad measurements additional frequencies. additional notch frequencies anywhere band must stipulated time ordering.
CHINA Beijing Tel: [+86] (10) 6539 Fax: [+86] (10) 6539 1778 CHINA Shanghai Tel: [+86] (21) 5109 5128 Fax: [+86] (21) 5150 6112 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] 1628 604455 Fax: [+44] 1628 662017 Cambridge Tel: [+44] 1763 262277 Fax: [+44] 1763 285353
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 2006.
w.aeroflex.com info-test@aeroflex.com
passion performance defined three attributes represented these three icons: solution-minded, performance-driven customer-focused.
Part 46891/212, Issue 09/06
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