Narda SRM-3000

Selective Radiation Meter

The Narda SRM-3000 Selective Radiation Meter (SRM) is a handheld selective measuring device for safety analysis of RF & microwave electromagnetic fields. It can also be used as a conventional RF spectrum analyzer for general field strength measurements.

The Narda SRM-3000 can be used by broadcasters, radio network operators, measurement service providers and public authorities to selectively measure the field exposure produced by individual telecom services, and assess the results in accordance with the applicable standards.Most measurements required in the mobile radio sector can be performed directly using the handheld device. The SRM immediately evaluates the results on site.

Narda SRM-3000 Features:

Complete solution for selective measurement of RF & microwave electromagnetic fields (100 kHz to 3 GHz)
Isotropic (non-directional) measurement with triaxial Antenna (75 MHz to 3 GHz)
Excellent immunity for operation in high field strengths
Automatic Antenna and cable detection
Results in V/m, A/m, power density or percentage of permissible limit
Automatic correlation of results with telecommunications services (e.g. TETRA, GSM, UMTS) based on user-defined tables
Automatic computation of contribution of individual services to overall field exposure (Safety Evaluation mode)
Resolution bandwidths (RBWs) up to 5 MHz for UMTS and W-CDMA
UMTS P-CPICH Demodulation mode for worst case extrapolation of UMTS Node-B base station emissions

Narda SRM-3000 Specifications:

SRM-3000 (basic unit)
Frequency range	100 kHz to 3 GHz
Modes	Spectrum Analysis Safety Evaluation
Modes	UMTS – P-CPICH Demodulation Time Analysis
Frequency	Resolution bandwidths (RBW)	See specifications for each mode
	Phase noise (SSB)	30 kHz carrier spacing < - 85 dBc (1 Hz) 100 kHz carrier spacing < - 105 dBc (1 Hz) 1 MHz carrier spacing < - 120dBc (1 Hz)
	Reference frequency	Original deviation < 1.5 ppm Aging < 0.5 ppm/year Thermal drift < 2.0 ppm (within specified tempera- ture range)
Amplitude	Upper limit of measure-ment range (MR)	-27 dBm to +23 dBm (in steps of 1 dB)
	Display range	From noise floor up to +26 dBm
	Maximum RF power	+30 dBm
	Maximum DC voltage	50 V
	Intrinsic noise	-120 dBm for 1 kHz RBW, f > 20 MHz and no RF attenuation
	RF attenuation	0 to 50 dB in steps of 1 dB (coupled with measurement range)
	2nd order intermodulation products	= -57 dBc for two signals of level 9 dB below MR and a spectral line spacing of more than 100 kHz
	3rd order intermodulation products	= -70 dBc for two signals of level 9 dB below MR and a spectral line spacing of more than 500 kHz
RF Input	Type	N connector, 50 Ω
RF Input	Return loss	< 11dB for f = 2.4 GHz

Please contact us for more information on the Narda SRM-3000 Selective Radiation Meter

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