NGT-200 USER MANUAL
NGT-200 UM.E 20210520-02
11
SECOND SCREEN of measurements:
Freq:
measured carrier frequency;
dev+:
positive
deviation
of
audio
subcarrier frequency 1700 Hz;
dev-:
negative deviation of audio
subcarrier frequency 1700 Hz;
∆p-p
:
peak-to-peak
deviation
of
subcarrier frequency;
Pow.:
measured power level of received
signal;
Saved OK !
- if you press
F2
and save
data to memory.
5.1.3 TEST VHF > VHF SYNTHESIZER
The main task of this mode is testing of VHF-FM and VHF-AM radio stations
mobile and stationary; besides the Tester can operate as a RF signal generator.
CH:
Number of the VHF channel (ITU);
F :
Carrier frequency, kHz;
dF:
Frequency tuning step;
L:
Level of the output signal, dBm;
dL:
Level step by keys
+
and
-
;
Mod: FM -
Modulation type;
Supported:
FM
>
CW
>
SSB
>
AM
>
AMsweep
;
F:
1.0k
D:4.5kHz
frequency
modulation and deviation on FM;
AMsweep
– amplitude modulation of sweep
audio signals, it is applied in homing signal
(121MHz) of emergency beacons such as
EPIRB, ELT.
Frequency can be adjusted by one of the following ways:
1.
By channel: You may directly input channel number or select it using
buttons
+
and
–
; all ITU simplex channels are available.
=VHF Synthesizer =
CH: 16
F: 156800 kHz
dF: 0025 kHz
L: -063 dBm X
dL: 10 dB
Mod: FM
F: 1.0k D:4.5kHz
= VHF:ReceiveDSC =
Freq:156525123 Hz
dev+: 400 Hz
dev-: -400 Hz
∆p-p: 800 Hz
Pow.: 44.3 dBm X
Saved OK !
