Vhf-Uhf Radio - Kazan Helicopters Mi-17-1V Flight Manual

M,,-17 -1B. Flight manual
7.2.2. P-863 VHF-UHF Radio
Use the P-863 VHF-UHF radio as follows:
(1) Energize the radio station by pressing the CMND RADIO (KOMAHA. PC)
and INT (CnY) circuit breaker on the right CB panel, and the radio control
panel should become red light illuminated.
(2) On the interphone control box, set:
(a) ICS-RADIO (CnY-PAAVlO) selector switch to RADIO (PAAVlO).
(b) Radio means selector switch to VHF (YKP).
(c) MAINS-1, 2 (CETb-1, 2) selector switch to 1.
(3) On the radio control panel, set:
(a) NS-OFF (nW-WKJ1) switch to OFF (BbIKJ1).
(b) Volume control to the extreme right position (maximum volume).
(c) CHANNEL (KAHAJ1) selector switch to the number of the communi-
cation channel required.
(d) FM-AM (4M-AM) selector switch to the position corresponding to the
respective user's operation mode.
Note: 1. The AM mode is used when ground (helicopter) radio stations
operate in the amplitude modulation mode.
2. The FM (4M) mode - when ground (helicopter) radio stations
operate in the frequency modulation mode.
(4) Open the NS (Fllll) switch when flying at a great distance from the com-
municating station.
(5) Select the radio station from the RECEPTION mode to the
TRANSMISSION mode by setting the ICS-RADIO (CnY-PAAVlO) switch
on the control stick to 2 (the second click is heard).
(6) Test the radio station by conducting a two-way communication with other
radio stations or hearing a side-tone and noise in the headphones.
Note: When the P-863 radio receives some information, the KapaT-M24
radio is not recommended to operate for transmission, as some
interference in reception may occur.
7.2.3. "rl,lJ,po-1a" HF Radio
Use the rl,lJ,po-1 a - HF radio as follows:
(1) Energize the radio station and interphone by closing the COMM RADIO-
INT (CBrl3HArl PC) circuit breaker installed on the left CB sub-panel of
the overhead switch panel and the COMM RADIO switch on the right
sub-panel of the electrical control panel.
(2) Set the interphone control box radio communication means selector
switch to MF (CP) and the ICS - RADIO (CnY-PAAVlO) selector switch to
RADIO (PAAVlO),
(3) Turn the volume control, located on the radio station control panel, fully
to the right. Tune the radio station to the desired frequency, after that the
TUNING annunciator, located on the radio station control panel, should
go on, and in
5
sec. maximum the annunciator should go out. Set the
modulation selector switch OFF- SSB- AM to a position which corre-
sponds to a modulation of the ground station. Set the NS-OFF switch to
OFF position.
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