GME TX3420 - Manual (Page 4)

PA G E 4 i n s t r u c t i o n m A n uA l t X 3 4 2 0
channel selector/Pri Key liquid crystal display Volume control
microphone Port menu Key/f Key scan Key/os/Gs quiet Key/duplex Key squelch KeyAlpha Key
MENU
F
PUSH
SCAN
OS/GS
QUIET
DUP
SQL
ALPHA
T X 3 4 2 0
PRI
GENERAl OPERATION
FuNctioN Key
the four keys beneath the tX3420’s display have both
primary and secondary functions . their primary functions
are printed in black while their secondary functions are
printed in red .
to access the primary functions
simply press the required key . e .g . to control the squelch,
briefly press the sQl key .
to access the secondary functions
Press the F key followed immediately by the required key .
e .g . to lock the radio, briefly press the F key (‘f’ is displayed),
then press the channel knob . the radio will lock .
Note: if the secondary key is not pressed within 10 seconds
the F key selection will be cancelled .
Volume Key
rotate the Volume control clockwise past the ‘click’ to turn
the tX3420 on . continue to advance the control clockwise
to increase the volume . rotate the control counter clockwise
to turn the radio off .
Note: At minimum volume setting there is still sufficient
volume to be heard in a quiet cabin environment .
KeylocK Feature
the key locks the keys on the unit to prevent
unintentional key presses from altering your tX3420
settings . While the keys are locked, only the Push-to-talk
(Ptt), on/off Volume control and the Keylock key will
continue to function .
to lock the keys
briefly press the F key, then press and hold the key
until a high beep is heard . the ‘ ’ symbol will appear
on the display .
to unlock the keys
briefly press the F key, then press and hold the key
until a low beep is heard . the ‘ ’ symbol will disappear
from the display .
selectiNg chaNNels
rotate the channel knob to step upwards or step
downwards one or more channels .
traNsmittiNg
Prior to transmitting, always check the channel is not being
used . this can be done by either listening or by checking the
‘busy’ indicator is not lit .
to transmit, press the Ptt (Push-to-talk) button on the
microphone . hold the microphone about 5-8 cm from your
face and speak at a normal voice level . the microphone is
quite sensitive so it is not necessary to raise your voice or
shout . release the Ptt when you have finished talking .
sQuelch coNtrol
squelch control is used to eliminate the background noise
when there are no signals present . the tX3420 features
a preset squelch system . the squelch sensitivity has been
factory set to provide optimum performance in most
environments, however the sensitivity can be altered by the
user if required, to suit varying environmental situations .
the squelch can be opened or closed with the sQl key .
When the squelch is open, the receiver’s background noise
can be heard and ‘busy’ is displayed . When the squelch is
closed, the receiver remains quiet when there are no signals
present but an incoming signal will override the squelch and
be heard in the speaker .
to open the squelch
briefly press the sQl key . A low beep will be heard . if
there are no signals present you will hear the receiver’s
background noise .
to close the squelch
briefly press the sQl key again . A high beep will be heard
and the receiver will become quiet .
Note: if an incoming signal is very weak and is close to the
minimum squelch level, it may become broken or ‘chopped’
by the squelch action . to prevent this, simply open the squelch