Handheld spectrum analyser runs up to 3.3GHz

The B+K Precision Model 2650 is a cost-effective handheld PC-compatible 3.3GHz spectrum analyser.

The B+K Precision Model 2650 is a cost-effective handheld PC-compatible 3.3GHz spectrum analyser.

Weighing less than 2kg, including battery, this compact, versatile, easy to use, portable unit is priced at only $4495 and is ideal for use in the evaluation of W-CDMA, CDMA, GSM, PDC, PHS, wireless LAN, 802.11 and Bluetooth systems.

The analyser offers a number of features that provide ease of use, including: a measuring frequency range from 50kHz to 3.3GHz; an autotuning function; channel power measurements; adjacent channel power measurements; occupied bandwidth measurements; electric field strength measurements; magnetic field strength measurements; and an RS232 interface.

The Model 2650 can be used for precompliance testing during development prior to third-party testing.

It is extremely flexible and can be put to work either in the field or on the bench testing cable TV levels and frequency responses, testing master antenna TV systems, measuring communications transmitter spurious radiation, locating sources of EMI or to measure unwanted RF radiation.

The built-in RS232 PC interface allows the user to either control the Analyser's settings or to sample signals and then save, manipulate or print the imported signals.

A lightweight portable printer is available as an option.

The Model 2650 is capable of precisely measuring the magnetic field distribution on an LSI or a printed circuit board using the optional magnetic field probe PR 26M.

It is possible to measure the electric field strength by connecting a dipole antenna (optional) to the input connector.

A dipole antenna that suits the use is available for PDC 800MHz and GSM 900MHz band, PDC 1500MHz band, PHS, W-CDMA and GSM 1800/1900MHz band and 2.4GHz wireless LAN and Bluetooth.

The Model 2650's front panel display provides many measurement parameters such as centre frequency, marker frequency and attenuation levels.

Other features include save/recall, and frequency and level marker.

Outstanding performance characteristics include measurement of frequency signals from 50kHz to 3.3GHz, 3dB resolution bandwidth, 100Hz to 300kHz video bandwidth, -90dBc/Hz (typical) SSB phase noise, and a spurious response of less than -60dBc.

Optional PC software, AK 2650 and serial interface cable allows the Model 2650 to display screen resolutions on a PC that are four times greater then the 250 points normally displayed on the horizontal axis of the Model 2650's LCD.

The Model 2650 samples its input at 1000 points per sweep and it can output these points through its RS232 port to a PC (the maximum transfer rate is 38,400bit/s).

The AK 2650 software not only allows for clearer screen images but it also allows spectrum analyser setup via a PC.

The use of the optional PT 2650 portable printer permits the user to print hard copies of screen images.

The printing begins when the "print" key is pressed.

The printer can be operated by an AC adapter or four AA batteries.

The operating time when powered by alkaline batteries is approximately 30min (when used continuously), which makes it possible to produce about 80 hard copy screen images.

The PT 2650 comes with one roll of thermal paper.

Weighing less than 2kg including battery, and measuring a compact 259 x 163 x 124mm, the Model 2650 spectrum analyser comes complete with AC power supply/charger, soft carrying case, accessory pouch, fuse, Ni-MH rechargeable battery pack and instruction manual.

Optional antennas, cables, probes, remote stand-alone printer and coupling adapters are available.

The Model 2650 is priced at $4495 one-off, and is available for immediate delivery.

The AK 2650 software and interface cable has a list price of $199.00 and the PT 2650 portable printer is priced at $459.00.

(This was Electronicstalk's Top Story on 6 February 2003).

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