737 MAX Flight Crew Operations Manual
Communications
Chapter 5
Controls and Indicators
Section 10
MN-FLT-OH-201
5.10.1
10 Controls and Indicators
Controls and Indicators
File 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
TEST
VHF3
AFT ELECTRONIC PANEL
1
2
3
4
6
7
8
10
11
5
9
Note: When a switch is labeled "INOP" that switch
is not available and should not be used.
March 1, 2021