Morgan Hill, Calif.As part of its ever-expanding Spectrum Master product line, RF test equipment vendor Anritsu Company is dishing up three fast sweep-speed nomadic RF spectrum analyzers.
Its MS2724B is an ultra-portable instrument featuring continuous frequency coverage from 9-kHz to 20-GHzat a modest price. It's suited for measuring up to the fifth harmonic of 3G (third generation) cellphone base station.
Anritsu is also rolling out its MS2721B and MS2723B handhelds; these provide frequency coverage up to 7.1-GHz and 13-GHz, respectively. All three MS272xB Spectrum Master series analyzers break some new ground for Anritsu.
Let's look at bit more closely at the capabilities of these handhelds, with their bright color LCDs. The MS2724B's continuous 9-kHz through 20-GHz coverage is complemented by a low phase-noise spec (typically -104-dBc/Hz at 10 kHz offset at 2 GHz), and a 1-Hz to 3-MHz RBW (resolution bandwidth) range.
For their parts, both the MS2721B and MS2723B exhibit similar performance. The MS2721B has a phase-noise spec of -100-dBc/Hz (maximum at 10 kHz offset up to 7.1-GHz), while the MS2723B has typical phase-noise spec of -104-dBc/Hz (at 10 kHz offset at 2-GHz). Like the MS2724B, the RBW range of these units is 1-Hz to 3-MHz.
All three models are also light weight. The MS2724B and MS2723B weigh in at 7.5-lbs. (3.4-kg), while the MS2721B weighs less than 6.9-lbs (3.1 kg).
Listen To Those Signals
All three analyzers also come with built-in AM/FM/SSB demodulators, and integral preamplifier stages. Demodulated signals can be monitored using an internal loudspeaker, or by using a 3-wire headset, such as used with many cellular telephones.
These three models are also the first in the Spectrum Master family to feature quasi-peak detectors, and CISPR (International Special Committee on Radio Interference) bandwidths for EMC (electromagnetic compatibility) pre-compliance testing.
Tracking Generator Option
Additionally, the MS2721B can be equipped with a tracking generator that provides calibrated output from 400-kHz to 7.1-GHz, with a power range extending to down to -40-dBm (1-µW) in 0.1-dB steps.
The MS2721B also exhibits typical DANL (Display Averaged Noise Level, or sensitivity) of -163-dBm (at 1-GHz in a 1-Hz bandwidth), while the MS2723B and MS2724B deliver a DANL of -156-dBm (at 1 GHz and 1-Hz RBW) with the pre-amplifier on (-139-dBm with the preamp off).
Make Smart Measurements
These instruments can also make so-called smart measurements, including measurement of channel power ratio, C/I (carrier to interference) ratio, and field strength.
All Spectrum Masters have large displays and can provide more than two hours of battery life in the field. They can also be re-charged using a cigarette lighter connection in a vehicle.
You can also make use of Compact Flash memory modules or USB (Universal Serial Bus) thumb drives to store traces and instrument set-ups. A 512-Mbyte module can hold over 20,000 spectrum analyzer measurements.
Remote programming using an Ethernet 10/100Base-T connection is also provided; it uses SCPI (Standard Commands for Programmable Instrumentation) programming commands. The Ethernet connection lets you remotely operate these instruments using Anritsu-based remote access software, which is shipped with these products.
Pricing is less than about $21,000 for the MS2724B, less than about $18,000 for the MS2723B, and less than about $14,000 for the MS2721B.
Click here to access the MS2724B datasheet (in Adobe Acrobat .PDF format).
For more information, contact Steve Colangelo, product manager at Anritsu Instruments Company, 1155 E. Collins Blvd. Suite 100, Richardson, Texas 75081. Phone: 800-ANRITSU.
Anritsu, 800-ANRITSU, www.us.anritsu.com