NGT-200 USER MANUAL
NGT-200 UM.E 20210520-02
2
- operation tests on channels 6, 9, 13, 16 (at least);
- measurement of output power, carrier frequency and frequency deviation;
●
VHF equipment of duplex radiotelephony with airplanes including operating on
121.5MHz and 123,1MHz:
- operation tests by transmission/reception of modulated signal;
- measurements of frequency, output power level and frequency modulation
depth;
●
VHF radiotelephone stations operating in range (300 - 337) MHz (intended for
river-sea vessels):
- measurement of output power, carrier frequency and frequency deviation;
●
AIS mobile stations Class A and Class B and AIS-SARTs working in the Marine-
VHF band:
- measurement of output power, carrier frequency and antenna VSWR;
- receiving and decoding of the AIS messages;
- sending data/messages to AIS stations;
- passing the DSC polling information (channel 70);
- checking AIS response to “virtual vessels”.
●
Cospas-Sarsat radio beacons:
- measurement of output power and carrier frequency on channel 406MHz;
- receipt, demodulation and decoding of messages on channel 406MHz;
- measure of output power level and carrier frequency on channel 121.5MHz;
- measure of output power level and carrier frequency on channel 243MHz;
NGT-200 allows to:
- generate the RF signals in range of 0.4 – 30 MHz and 118 – 275 MHz,
including those with tonal amplitude and frequency modulation;
- measure the signal frequency and power level of narrow-band radio signals in
range of 0.4 – 30 MHz, 118 – 137.5 MHz and 156 – 163 MHz.
The tester is capable to transmit and receive the signals by:
-
broadcast antenna
-
direct connection to radiofrequency IN/OUT
-
through Power sensor SWR meter
-
direct connection by means of attenuator and cables (
conductive measurements
)
