737 Flight Crew Operations Manual
Communications Chapter 5
Controls and Indicators Section 10
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 5.10.1
10 Controls and IndicatorsControls and IndicatorsFile Highlight
Radio Tuning Panel
1 Frequency Transfer Switch
Push –
• transfers the STANDBY window frequency to the ACTIVE window
and tunes the selected radio to the new active frequency
• transfers the ACTIVE window frequency to the STANDBY window.
2 Frequency Indicator
ACTIVE – displays the tuned frequency of the selected radio.
STANDBY – displays the preselected or previously tuned frequency of the
selected radio
• displays DATA if the selected radio is in the data mode.
• displays six digit frequency in 8.33 KHz spacing.
Note: Illustration Typical
3 Radio Tuning Switch
Push –
• selects the VHF or HF radio to be tuned
• the tuned frequency is displayed in the ACTIVE frequency indicator
• the standby frequency is displayed in the STANDBY frequency
indicator
STANDBY
VHF2
OFF
HF SENS
VHF1
HF1
AM
ACTIVE
P
N
L
HF2
VHF3
VHF
TEST
AFT ELECTRONIC PANEL
1
2
3
4
6
7
8
10
11
5
9
March 27, 2009
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