4.
UHF AM soft key -Press. The band will be selected, and screen will change to COM sum-mary screen.
5.
SETTINGS soft key -Press, to access Settings screen.
6.
TUNE soft key -Press, if desired to edit fre-quency. Enter new frequency in scratchpad, and ENT .xed function key -Press.
7.
ICS transmitter selector -Position 2
8.
Radio push-to-talk switch -Press to talk; re-lease to listen.
3.7.5.2 Frequency Hopping Mode.
1. On initial start-up of radio, update TOD, and load WOD.
a.
COM .xed function key -Press, to access COM SUM screen.
b.
SK 2 soft key -Press, to edit COM 2 set-tings.
c.
SETTINGS soft key -Press, to access Set-tings screen.
d.
HVQK -SETUP soft key -Press.
e.
Update TOD, with any one of the soft keys, depending on mission needs.
f.
LOAD WODS soft key -Press, to load WODS. The radio will emit a tone when WODS are loaded, and return to settings screen with band changed to HVQCK I.
2.
On settings screen, select channel as desired.
3.
ICS transmitter selector -Position 2.
4.
Radio push-to-talk switch -Press to talk; re-lease to listen.
3.7.5.3 Receiving Time from Net Control Aircraft.
1.
COM .xed function key -Press, to access COM SUM screen.
2.
SK 2 soft key -Press, to edit COM 2 settings.
3.
SETTINGS soft key -Press, to access Settings screen.
4.
HVQK -SETUP soft key -Press.
5.
When net control announces TOD update, RCV -TOD.
3.7.5.4 Sending Time (Net Control Aircraft).
1. COM .xed function key -Press, to access COM SUM screen.
2.
SK 2 soft key -Press, to edit COM 2 settings.
3.
SETTINGS soft key -Press, to access Settings screen.
4.
HVQK -SETUP soft key -Press.
5.
When net control requests TOD update, SND -TOD
3.7.5.5 Edit or Make Frequency Into PRESET.
1.
DAT .xed function key -Press, to access MIS-SION DATA screen, then COMM soft key, to access COM PRESET screen.
2.
UHF soft key -Press, to access preset screen.
3.
Use PREV/NEXT rocker switch to display preset to change. Select .elds to edit with soft key, enter new values in scratchpad and press ENT to change displayed values.
3.7.6 Emergency Operation.
NOTE
Placing EMERG COMM switch to EMERG COMM disables the CDUs and tunes COM 2 radios to Guard (243.0 MHz).
1.
On emergency control panel, EMERG COMM switch -EMERG COMM.
2.
CSC mode selector -2.
3.
Radio push-to-talk switch -Press to talk; re-lease to listen.
3.8 VHF RADIO SET AN/ARC-222 (COM 3).
The AN/ARC-222 VHF transceiver provides AM and FM communication on VHF frequencies between 30.00 MHz and 173.975 MHz. The set receives and transmits FM signals between 30.000 to 87.975 MHz, and 156.000 to
173.975 MHz. AM signals are receive only between 108.0 and 115.975, and receive and transmit between 116 and
155.975. The AN/ARC-222 is referred to as COM 3, which corresponds to its position on the ICS mode select switch. Power is supplied from the dc essential bus through a cir-cuit breaker marked VHF AM/FM.
3.8.1 Antenna. The antenna is located on the bottom of the cabin (Figure 3-1).
TM 1-1520-253-10
SK.6
SK.7
SK.8
SK.9
SK.10
NOTE
INDICATES MULTIPLE PAGES MAY EXIST.
USE THE
KEY TO VIEW THESE PAGES.
AB0336_1
SA
Figure 3-12. VHF (COM 3) Communication Screen Flow (Sheet 1 of 2) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：UH-60Q 直升机技术手册 直升机操作手册 1(77)
