Anritsu MS2687B Manuel utilisateur

MS2687B

Spectrum Analyzer

9 kHz to 30 GHz

For evaluation of Wireless LAN equipment and devices

High-performance microwave spectrum analyzer

covering 30 GHz

High-speed Internet services using Wireless LANs are spreading rapidly. High-speed hot-spot

wireless services are appearing in hotels, offices, restaurants. 5-GHz Wireless LAN equipment

and devices are being actively developed and there is urgent need for OFDM signal analysis.

The MS2687B Microwave Spectrum Analyzer covers a frequency range up to 30 GHz and can

measure up to 5th-order harmonics on 5-GHz Wireless LANs. Moreover, the MS2687B has a

maximum RBW of 20 MHz and is ideal for measuring the burst power of wideband signals used

by Wireless LANs. When the MX268730A Measurement Software is installed, the modulation

accuracy, of each sub-carrier of the OFDM signal can be measured at high speed and high

accuracy.

Features

•Optional measurement software (sold separately) for high-speed modulation analysis

(0.5 sec. with IEEE802.11a)

•Optional wide resolution bandwidth up to 20 MHz and narrow resolution bandwidth from 1 Hz

•Optional power meter that measures up to 32 GHz

•Data transmission speed approximately 10 times faster∗

(GPIB transmission speed: 120 kbytes/s) ∗Comparison with our conventional models

•Optional rubidium reference oscillator for warm-up time of just 7 minutes

For R&D and manufacturing of wireless LAN

equipment and devices

Frequency range: 9 kHz to 30 GHz

Reference oscillator start-up characteristics:

5 x 10–8or lower (standard)

1 x 10–9/7 min. or lower (option 05)

Span accuracy: ±1%

Resolution bandwidth:

300 Hz to 3 MHz, 5 MHz, 10 MHz, 20 MHz

1 Hz to 1 kHz (option 02, FFT)

10 Hz to 1 MHz (option 04)

Average noise level: ≤–146 dBm/Hz (1 MHz to 2.5 GHz)

Input attenuator: 0 to 70 dB (10 dB step)

Basic Specifications For installation and maintenance of radio

stations

Save/recall of set parameters: up to 12 into/from internal memory

Output of measurement results: BMP, CSV format or printer

(ESC/P compatible model)

PC card interface: PC compatible Memory card

(Memory card equipped as standard for 32 Mbytes or over)

Display: 6.5 inch (17 cm) color TFT-LCD

Dimensions, weight:

320 (W) x 177 (H) x 411 (D) (mm), 16 O

For maintenance of microwave entrance lines

Frequency range: 9 kHz to 30 GHz

(When using external mixer: to 110 GHz)

Measure: One-touch measurement of occupied

bandwidth, channel power, and adjacent

channel leakage power

Power meter function: 100 kHz to 32 GHz

(Power sensor optionally available)

A backpack and soft carrying case convenient for field use

is also available.

For development and production line of

various radio frequency parts

Reference oscillator stability:

±2 x 10–8/day (standard)

±5 x 10–9/day (option 01)

Sweep time: 10 ms to 1000 s (frequency span)

1 µs to 1000 s (time span)

Sweep refresh rate: 20 trace/s

I/O interface:

GPIB, RS-232C, and Centronics equipped as standard

Ethernet (option 09) allows network control by 10BASE-T.

GPIB transfer rate: 120 kbytes/s

Options

Option 01: Precision frequency reference

(aging rate: 5 x 10–10/day)

Option 02: Narrow resolution bandwidth (FFT)

Option 04: Digital resolution bandwidth (RMS detection)

Option 05: Rubidium reference oscillator

Option 09: Ethernet interface

Option 18: I/Q unbalanced input

Option 21: Power meter function

Option 23: Range expansion power meter function

Option 34: 4 GHz LO output

Option 41: Power meter function retrofit

Option 43: Range expansion power meter function retrofit

Option 44: Range expansion power meter function upgrade

Option 46: Auto power recovery

Option 47: Rack mount (IEC) without handles

Option 48: Rack mount (JIS) without handles

Warranty

Option 90: Extended three year warranty service

Option 91: Extended five year warranty service

Easy-to-Use Panel Design

1IF output (BNC type)

2Reference input/output (BNC type)

3Power

4AC input

5Ethernet interface (10BASE-T, optional)

6RS-232C interface

7VGA output

8GPIB interface

9Parallel interface (D-sub25)

Trigger input (BNC type)

Video signal output (BNC type)

6.5 inch (17 cm)

color TFT-LCD

Memory card slot

Power

Preset

Copy

579

1st local output

Ten key

Rotary knob

Various function

Main function

Mode selection

RF input (K-J type)

I/Q input (BNC type)

Sensor input

Excellent Basic Performance

High C/N ratio to securely capture

adjacent signals

The MS2687B has excellent noise sideband

characteristics of –108 dBc/Hz or lower (1 GHz, 10 kHz

offset), which is ideal for analyzing weak signals adjacent

to strong signals or a narrow bandwidth carrier.

Broad dynamic range that accurately

captures weak signals

With the development of digital radio technology, analyzed

signals are becoming weaker and broader than ever. With

the MS2687B, a dynamic range display of up to 156 dB

(typical value) has been achieved, thus allowing accurate

analysis of even weak signals.

The resolution bandwidth of up to 20 MHz permits the

analysis of broadband signals and can handle the broader

bandwidths of the future.

Extremely low distortion rate suitable

for power amplification or harmonic

measurement

The MS2687B has extremely low harmonic distortion

levels, including second harmonic distortion of –90 dBc

and two-signal third-order distortion of –85 dBc, making it

suitable for evaluating the non-linearity of high-power

amplifiers and for measuring harmonics.

Instantaneous evaluation of various

radio devices

Standard measure functions

The MS2687B has a wealth of measuring functions to

perform various high-speed evaluations of radio devices

such as power measurement, frequency measurement,

adjacent channel leakage power measurement, and mask

measurement.

Optional measurement software is also available for

instantaneously analyzing various digital communication

systems by just installing the software.

Example of occupied bandwidth

Example of two-signal third-order distortion waveform

Example of C/N characteristics waveform

Easy measurement data control

allowed by various interfaces

The results of measurement with the MS2687B can be

saved at the touch of a button (in BMP or CSV format;

data can also be output to a printer). The large-capacity

memory card instead of a floppy disk which is susceptible

to mechanical failure allows accurate and high-speed

storage of important data. Various interfaces such as RS-

232C, Centronics, GPIB, and Ethernet (optional) permit

easy connection to a PC for data collection.

Convenient and Easy-to-Use Functions

Example of frequency counter

1 Hz resolution

Built-in frequency counter

The built-in frequency counter is convenient for measuring

the frequency of a signals arbitrarily selected from multiple

signals. High resolution of 1 Hz even at full span is

assured.

Multiple waveform display and

multimarkers

The MS2687B is equipped with multiple waveform display

function that allows superimposition of two waveforms or

simultaneous display of analysis of frequency domain and

time domain.

It also has substantial marker functions that allow up to

10-point multimarkers to be displayed for comparison of

waveforms and measurement of harmonics.

Bright and easy-to-see 6.5 inch

(17 cm) color TFT display

The MS2687B has a 6.5 inch (17 cm) color TFT-LCD.

Intensity and color can be adjusted freely according to the

operating conditions.

Example of harmonics measurement Example of capture soft

Example of coloring change

For installation and maintenance of various radio stations

Ideal for installation and maintenance

of radio stations

Short warm-up time of just 7 minutes

The MS2687B is a portable spectrum analyzer ideal for

installing and maintaining various radio stations. A frequency

range of 9 kHz to 30 GHz has been achieved, and by using

an external mixer, this can be extended up to 110 GHz.

This range covers the frequencies of various mobile

communication systems and applications such as

microwave entrance lines. The warm-up time of the

optional rubidium reference oscillator (option 05) is just 7

minutes, making it ideal if you have to move from one site

to another.

Various accessories ideal for

field use

A backpack and soft carrying case are available for

installation and maintenance of radio stations in the field.

Various accessories such as a rubber protective pad for

the back of the analyzer are useful precautions for field

use.

Optional power meter function for

highly accurate power measurement

The MS2687B has an optional power meter function that

permits measurement of up to 32 GHz. Just by mounting

a power sensor to the full-face connector, highly accurate

power measurement can be performed.

Use of the MS2687B eliminates the need to carry a power

meter to the site, and enables more efficient measurement

at the site.

Example of power measurement

For installation and maintenance of various radio stations

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