Agilent Technologies E7495A RF Manual de usuario descargar pdf (Pagina 11)

Specifications describe the instrument’s warranted performance and are valid

over the entire operating/environmental range unless otherwise noted.

Characteristics and specifications are show as follows:

● Bold type indicates a warranted, hard specification

● Normal type indicates a nominal value. Nominal values are design center

values and are not normally tested during the manufacturing process

● Supplemental characteristics are intended to provide additional

information useful in applying the instrument by giving typical, but not

warranted, performance parameters. These characteristics are show in

italics or labelled as “typical,” or “usable to.”

General specifications

Unless otherwise noted the following specifications apply to all

measurements/tools using port 2.

Frequency accuracy:

Using internal time base: ≤ ± 1 ppm with > 15 minute warm-up

Internal time base aging: ± 1 ppm aging/year

With GPS lock for: > 15 minutes: ≤ ± 0.03 ppm

Input frequency range:

10 MHz to 2700 MHz

Usable to 500 KHz (specifications and typical values do not apply below

375 MHz unless otherwise noted)

Maximum input level:

+20 dBm (.1 W), +50 dBm w/supplied attenuator

Maximum input power without

damaging instrument: 100 W (with external attenuator)

1W (without attenuator)

Frequency and time reference:

Can use internal timebase or external signal:

GPS (external antenna supplied)

Even second; pulse

1 MHz ≥ 0 dBm

2.048 MHz ≥ 0 dBm

4.95 MHz ≥ 0 dBm

10.0 MHz ≥ 0 dBm

13.0 MHz ≥ 0 dBm

15.0 MHz ≥ 0 dBm

19.6608 MHz ≥ 0 dBm

Display:

Scale: 1 to 20 dB/div. settable in 1 dB increments

Number of points: 256

Number of divisions: 10

40 dB attenuator:

Frequency range: 10 to 3000 MHz

Attenuation accuracy: ± 0.5 dB

Max power: 50 dBm (100 W)

Spectrum analyzer/tools

Input frequency range: 10 MHz to 2700 MHz (usable to 500 KHz)

Reference level range: –150 to +100 dBm

Dynamic range: +50 dBm to –150 dBm

(with supplied 40 dB attenuator) (30 Hz RBW)

Input attenuation: 0 to 30 dB automatically selected,

10 dB controllable manually

Amplitude accuracy: ± 1 dB (100 to 2500 MHz at 25 °C)

Adjacent channel power

accuracy: ± 0.75 dBc

Resolution bandwidth: 10 Hz to 1 MHz, settable to 1 Hz precision

Span: 1 KHz to 2.6995 GHz

Trace update:

Span: 2.49 GHz = 5.1 sec

60 MHz = 400 mS

1 MHz, 100 Hz RBW 1.2 sec

Simultaneous dynamic range: > 90 dB (CW signals at 300 KHz separation,

span 500 KHz, 30 Hz RBW)

SSB phase noise: ≤ –85 dBc (30k Hz offset)

Spurious responses:

Range control set to auto, high sensitivity mode

Internally generated, 50 Ω

load on input: < –115 dBm

Crossing spurs: ≤ –50 dBc

Displayed average noise level:

–150 dBm (30 Hz RBW, 375 MHz to 1.5 GHz)

Port 2 VSWR: < 2:1

Antenna/cable analyzer

Frequency range: 375 to 2500 MHz

Frequency resolution: < 500 Hz

Immunity to interfering signals:

+20 dBm (with interference rejection turned on)

Measurement speed:

Full span: < 17 mS

60 MHz span: < 7 mS

Return loss (port1)

With ≥ 16 averages: 375 to 2500 MHz

Range: > 40 dB

VSWR: < 1.02

Resolution: 0.1 dB

Display range: –5 to +150 dB

SWR range: 1 to 500

Distance to fault (port1)

Range (m): 1 m to 300 m

Resolution: (1.5 x 10

) (Vf)/(f2-f1) Hz where VF is relative

propagation velocity of cable. (typically 1 % of

measurement distance)

VSWR: 1 to 500

Number of Data Points: 256, 512, 1024

Example table illustrating the effects of data points and span versus

measured distance and resolution (Vf of 93.1 %):

Data Points Span Measured distance Resolution

256 140 MHz 127.68 m 50 cm (19.6 inch)

512 140 MHz 255.36 m 50 cm (19.6 inch)

512 280 Mhz 127.68 m 25 cm (9.8 inch)

1024 560 MHz 127.68 m 12.5 cm (4.9 inch)

Insertion loss (port 1 to port 2)

Measurement uses supplied 10 dB pads

Usable range: > 100 dB wide range mode

Accuracy: ± 1 dB (over 0 to 60 dB, ≥ 16 averages)

Average insertion loss (readout) accuracy:

Range: 0 to 40 dB

Frequency: 824 to 960 MHz, 1710 to 2170 MHz

(mobile phone bands)

Readout resolution: ± 0.1 dB

E7495B Base Station Test Set Specifications

1. For antenna/cable measurements, a short self-calibration procedure must be run prior

to making the measurement. For more information about the calibration procedures and

when they are needed, see sections 2 and 3 in the users manual or use the online help.

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