NGT-200 USER MANUAL
NGT-200 UM.E 20210520-02
68
9.4
Step-by-step plan of checking the duplex VHF radio station
Testing of duplex VHF radio station mainly the same as for VHF Radios with DSC
(Item 9.3). Due to absence in such radio stations DSC, start measurements from the
Step 5 and all results save in a next free profile number.
Step 1:
connect Tester and Power sensor SWR meter according to fig.9.1 or fig.9.2
or make measurement trough broadcast as shown on fig. 9.3.
Step 2:
select measurement mode:
Test VHF
>
VHF Receiver FM
; select channel
CH-06 and start measurement by pressing
Enter
.
Step 3:
select channel CH-06 and press PTT (push to talk) on device under test;
You will see measured of frequency, power level and frequency deviation on
Tester’s screen. With PTT (push to talk) pressed save measured results by pressing
Esc
.
Step 4:
save measurement results on channel 06, by pressing
Enter
; on screen
you will see menu with profile number to save results – 7 (next empty profile ), but
for saving all measurement results of one radio station it is recommended to select
the same profile number used for saving DSC measurement before (in our example
it’s No. 6).
Repeat randomly Steps 2 -4 for channels 09, 13, 16.
Consequently, all
measurement results of one radio station on channels 06, 09, 13 and 16 will be
saved in the same profile (
as in example – prof. No.6
). This will allow you to make
and print Test Report.
