Extended Manual for RF919 v2.1
© 2024 page 13 of 63
5 Buttons and their functions
The RF919 is equipped with three antenna sockets for connecting
external antennas, two screens, two tuning wheels, several switches and keys.
This chapter gives a brief explanation of all those elements.
5.1 Buttons below the primary display
• When the radio is working, short press [ ] to mute and
unmute. “ ” will be flashing whenever muted.
• In VHF/UHF/AIR/CB/SW mode , long press [ ] for 2 seconds to
activate (“ ”) or deactivate (“ ”) the squelch function.
In receive mode, short press [ ] to switch between FM, SW, MW
and LW.
• In FM/MW mode, short press [ ] to choose the FM or MW
frequency receiving range. Please see chapter 7.3.2 “FM
frequency starting point” on page 26 and 7.3.3 “MW frequency
starting point and corresponding stepping value” on page 27.
• In SW/UHF/VHF/AIR mode, short press [ ] to switch between
the various SW&UHF&VHF&AIR meter waves. Please see chapter
7.3.5 “Select meter waves” on page 29.
• In TF card mode, short press [ ] to switch between play modes:
“Repeat current folder”, “Play random track”, “Repeat all tracks”
and “Repeat current track”. Please see chapter 8.2 “Automatic
playback of ” on page 38.
• In TF card mode, long press [ ] to restart current track from
the beginning
In receive mode, short press [ ] to switch between AIR, CB, WB,
VHF and UHF.
• In receive mode, short press [ ] to set the bandwidth.. See
chapter 7.3.11 “Select bandwidth” on page 36.
• In FM/SW receive mode, long press [ ] to set the demodulation
type. See chapter 7.3.12 “SW Demodulation types” on page 36
and 7.3.13 “Demodulation types of other bands” on page 37.
• In LW, MW, SW, CB, VHF, WB and UHF mode , short press [ ] to
choose the mode of antenna:
o Antenna signal will pre pre-amplified by +20dB to allow
reception of weak signals
o manual tuning of built-in antenna (including
rod antenna/ magnetic rod)
o External antenna (including WT antenna and external
loop antenna)
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