Handheld power meter covers a broad band

The NBM-520 meter directly measures the electromagnetic field strength in the vicinity of any telecomms, broadcast, military or industrial transmitter

A broadband handheld meter available from Link Microtek provides accurate measurements of electromagnetic fields and, with only four buttons, is extremely simple to operate. Manufactured by Narda Safety Test Solutions, the NBM-520 meter directly measures the electromagnetic field strength in the vicinity of any telecomms, broadcast, military or industrial transmitter.
The meter's light weight and relatively small size make it especially suitable for use wherever mast climbing is required, and it is likely to be a popular model for DSO applications in the broadcast sector.

Covering the frequency range 100kHz to 60GHz, the NBM-520 can be supplied with a choice of isotropic probes to suit each individual application.

One particularly useful probe offers a shaped frequency response, which is designed to produce results as a%age of a given safety guideline.

Regardless of which probe is chosen, the meter automatically recognises the type and serial number from an EPROM in the probe and applies the necessary correction factor, thereby achieving straightforward plug-and-play operation.

Featuring a backlit monochrome graphics LCD with selectable illumination time, the NBM-520 is easy to read in darkness or sunlight.

The meter offers four measurement modes - instantaneous, maximum, time average and spatial average - and includes a useful hold button to freeze measurement results.

Users are alerted to the presence of high field strengths by both audible and visual warning signals, and the alarm thresholds can be adjusted using the configuration software supplied.