Transmitting; Squelch; Squelch Sensitivity - GME TX3345 Instruction Manual

Selecting Channels
Press the or keys to step upwards or downwards
one or more channels. Press and hold to advance through the
channels at a faster rate.

trAnsMitting

Prior to transmitting, always check the channel is not being
used. this can be done by either listening or by checking the
indicator is not lit.
to transmit, press the PTT button. 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.
IMPORTANT: Always listen to ensure the channel is free
before transmitting.

squelCh

the squelch is used to eliminate the background noise when
there are no signals present. the tX3345 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 by pressing the
key. When the squelch is open, the receiver's background
noise can be heard and
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 key. A low beep will be heard. if there
SQL
ALPHA
are no signals present you will hear the receiver's background
noise.
PA G E 6
is displayed. When the squelch is
To close the Squelch
Briefly press the
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
to allow the signal to be heard clearly. Alternatively you can
reduce the squelch sensitivity as described below.

squelCh sensitiVity

the sensitivity of the squelch to incoming signals can be set
to suit your operating environment. in quiet rural locations
a low setting will allow the weakest signals to be received
while still keeping the radio quiet between transmissions. in
city locations, a higher setting might be needed to ensure
the squelch remains closed when subjected to the higher
interference levels often encountered in high density areas.
the tX3345 has nine (9) preset squelch sensitivity settings
labelled sQl-1 to sQl-9. the minimum squelch setting (sQl-1)
is the most sensitive and will allow the squelch to open on very
weak signals. sQl-9 is the maximum setting, requiring very
strong signals to open the squelch. the factory default is
sQl-3 which generally provides reliable squelch operation for
most applications.
To adjust the Squelch sensitivity
SQL
ALPHA
1. Briefly press the
X is a value from 1 to 9.
2. Press the
the squelch adjustment is live allowing you to adjust the
squelch to suit your current environment.
3. When your adjustment is complete, briefly press the
key to return to normal operation.
NOTE: the squelch level can also be adjusted within the menu.
i n s t r u c t i o n m A n u A l
SQL key again. A high beep will be heard
ALPHA
key. 'sQl-X' will be displayed where
LVL
PRI
or keys to change the squelch value.
LVL
PRI
t X 3 3 4 5