Aeroflex 2948 User Manual download pdf

For the very latest specifications visit www.aeroflex.com

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Wireless

2948B Low Noise Communications Service Monitor

• Low phase noise signal generator

• High stability reference oscillator (OCXO)

as standard

• Accurate power measurement to 150 W

• Transient and harmonic analysis

• Color transflective superfast LCD with

rapid refresh rate for easy monitoring and

real time adjustment

• Tracking generator with full offset

tracking

• Full span spectrum analyzer with ‘live’

look and listen

The 2948B Communications Service Monitor is

the lightest, most rugged service monitor avail-

able with low phase-noise signal generation.

For field work, the 2948B provides an excellent

combination of instruments for all types of

maintenance work. In the workshop it provides

all of the performance you would expect for

exacting measurements.

Low Phase-Noise Signal Generator

The 2948B differs from its 2945B ‘cousin’ by pro-

viding a low phase-noise signal generator as stan-

dard. This enhanced capability allows accurate

measurement of the noise characteristics of all

FM receivers and is especially beneficial when

making accurate measurement of narrow band

receivers. The performance of the 2948B enables

signal-to-noise measurements of better than

46 dB to be made on receivers with 12.5 kHz chan-

nel spacing.

Field Operation

At under 12 kg the 2948B lightens the load to remote sites. The

shape of the 2948B is ideal for carrying; the side handle ensures that

the instrument is clear of the stairs when ascending buildings and

the 2948B’s depth is suitable for the instrument to be operated com-

fortably when it is placed on the floor.

A large color transflective (improved sunlight readable) display aids

operation under harsh viewing conditions. An optional bail arm han-

dle is also available. This option allows a stowage cover to be fitted

over the front panel for storage of adapters and further protection to

the instrument’s front panel. A selection of cases are available

including a hard transit case, standard soft carrying case or an inte-

grated soft carrying/operational case allowing full operation without

removal from the protective case.

Stored settings may be recalled from internal memory or from a

memory card allowing fast and straightforward set up.

Fast Full Performance Spectrum Analyzer - Provided As

Standard

The spectrum analyzer provides spans from 100 Hz per division to

100 MHz per division and also has a fully adjustable reference level.

Speed is comparable with analog analyzers, allowing real time adjust-

ments over the displayed dynamic range. With the tracking genera-

1 2 3 4 5 6 ... 11 12

Summary of Contents

Page 1 - Wireless

For the very latest specifications visit www.aeroflex.comAAllll tthhee bbeenneeffiittss ooff tthhee 22994455BB bbuutt wwiitthh aa llooww pph

Page 2 - PMR, Trunking and Cellular

Return Loss >21 dB at 1 kHz Frequency Response±0.5 dB at 200 Hz to 5 kHz ±2 dB at 100 Hz to 20 kHzLevel Accuracy ±2% at 1 kHz ± accuracy of 2945B o

Page 3 - SSPPEECCIIFFIICCAATTIIOONN

For the very latest specifications visit www.aeroflex.comLTR TRUNKING TEST SOFTWARE (OPTION 18)Provides Auto/Manual test capability for LTR Trunked ra

Page 4

Part No. 46891/212, Issue 3, 01/06CHINA BeijingTel: [+86] (10) 6539 1166Fax: [+86] (10) 6539 1778CHINA ShanghaiTel: [+86] (21) 5109 5128Fax: [+86] (21

Page 5

tor provided as standard, duplexers and filters can be aligned quicklyand easily. An offset facility provides testing of equipment with fre-quency tr

Page 6

For the very latest specifications visit www.aeroflex.comTwo comprehensive audio generators are provided as standard forinternal modulation or audio s

Page 7

Overload indicated by audible and visual warningBNC: 5 W Overload indicated by audible and visual warningOutput ImpedanceNominally 50 ΩVSWR N-TypeBett

Page 8 - 0-999 MHz/400 kHz to 1000 MHz

For the very latest specifications visit www.aeroflex.comPress To Talk (PTT)When using the optional microphone in Tx Test mode, the PTT willswitch ins

Page 9 - GGEENNEERRAALL

Timebase50 µs/div to 5 s/div in a 1, 2, 5 sequenceGraticule10 Horizontal by 6 Vertical divisionsSpecial FeaturesBuilt in anti-aliasing circuitry and v

Page 10

For the very latest specifications visit www.aeroflex.comDynamic Range60 dB below spectrum analyzer reference levelScale (power)10 dB/divScale (time)5

Page 11

Vertical Resolution0.1 dB on 2 dB/division0.5 dB on 10 dB/divisionLevel Flatness±2 dB ± resolution (10 dB/div)Intermodulation DistortionBetter than 70

Page 12

For the very latest specifications visit www.aeroflex.comHandoff ST Frequency Hook Flash ST Frequency DTMF Decode ST Deviation Data Performance DSA

Aeroflex 2948 User Manual

Browse online or download User Manual for TVs & monitors Aeroflex 2948. 2948B Low Noise Communications Service Monitor Data Sheet [en]

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