Measurer radio interference NLMZ-4 (NLMZ4; NLMZ 4)
Measurer radio interference NLMZ-4 - a device designed to measure the intensity of radio noise in the broadcasting band.
Frequency Response - 10 kHz - 150 kHz.
Voltage measurement range of the field - 10mkV / m - 1V / m
The basic error - ± 1%.
Antennas - Framework and rod.
Dimensions - 540 × 310 × 420mm.
Unit weight - 32kg.
The instrument comprises an antenna for measuring the field strength. The device allows NLMZ-4 measuring interference field strength, asymmetrical interference voltage at the terminals of their sources and electricity networks, the field strength of radio stations.
Measurer radio interference NLMZ-4 can also be used as a sensitive selective Microvoltmeter general use.
Meters NLMZ-4 have the following input impedance - 75Om, 300ohm, 600ohm.
Latitude bands - 25Hz - 200Hz. Calibration of the sensitivity of the internal oscillator frequency.
Measurer radio interference NLMZ-4 uses the power from the following sources:
- From 220V, 48Hz - 450Hz;
- Internal battery - 9V - 15V, 85mA;
- Internal battery - 15V (10 × R20).