GME TX3220 Instruction Manual Download Page 6

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Scanning in group Scan Mode.

The Group Scan feature scans all the channels programmed
into the scan memory, with the priority channel being
scanned after every fourth channel.

• If a signal is heard on a scan channel, the receiver will

‘lock’ onto it and remain there for as long as the channel
is busy, and for 5 seconds after the channel has cleared,
as long as there are no signals on the Priority Channel.
During this time the receiver will continue to check the
Priority Channel for signals every 2 seconds, resulting in
a series of small ‘breaks’ in the reception of the ‘locked’
channel. If no signals are heard after 5 seconds, the radio
will resume scanning.

• If a signal appears on the Priority Channel at any time

(even when locked on a scan channel) the receiver will
switch straight to the Priority Channel and will stay there
for as long as the channel is busy. During this time you
can transmit on the Priority Channel in the usual way.
once there has been no activity on the Priority Channel
for 5 seconds, the radio will resume scanning the
other channels.

• To skip over a busy channel, briefly press the

SCAN

key

twice

• To talk on the Priority (working) Channel while in Scan

mode simply press the

PTT

button on the microphone.

When you have finished your conversation and there
has been no further activity on the Priority Channel for 5
seconds, the radio will resume scanning
the other channels.

•

To exit directly to the Priority Channel

, press the

PRI

key. Scan will be cancelled.

•

To hold onto a busy scan channel,

briefly press the

SCAN

key while the channel is busy. The radio will exit

the Scan mode and will remain on that channel. Press

SCAN

again to continue scanning.

•

To cancel the Scan mode,

briefly press the

SCAN

key.

a low beep will be heard and ‘SCan’ will disappear
from the display. If the radio was on a busy channel it
will remain on that channel, otherwise it will return to
the priority channel.

Note:

The radio will not scan if the Squelch is open.

TIME-OUT TIMER

The TX3220 has a built-in time-out timer which
automatically disables the transmitter if the

PTT

switch

is pressed for too long. This feature prevents the channel
from being blocked for long periods should your push-to-
talk switch become jammed or pressed accidentally. The
time-out period is set to two minutes by default, but can be
changed or even disabled by your retailer.

CTCSS

CTCSS (Continuous Tone Coded Squelch System) is a
squelch quieting system that uses one of 50 preset sub-
audible (very low frequency) tones to open and close the
squelch on your radio. The system applies a continuous
low level tone to your transmission, and a matching tone
decoder to your receiver’s squelch. When CTCSS is enabled,
the channel remains quiet until someone transmits using
the selected tone. When the transmission ends, the channel
becomes quiet again. By using different tones, several
groups of people can share the same channel without
disturbing each other.

Your TX3220 allows CTCSS to be enabled or disabled on
individual channels. In addition, the CTCSS tone frequency
used is user programmable.

When CTCSS is first enabled, it must be set up as follows:

To enable CTCSS on your radio

Use the following procedure:

1. Switch the TX3220

OFF

at the volume control.

2. Press and

hold

the

SQL

while turning the radio

again. ‘SILEnT

’

and ‘BUSY’ will be flashing to indicate

you are now setting the receive tone. The channel
number will now correspond to one of 50 different
CTCSS tones as shown in the table below. The factory
default is 00 (Tone Off).

3. To select the desired receive CTCSS tone, rotate

the

channel selector

until the required tone number

is displayed.

4. Press and

hold

the

SQL

key. The display will flash and

a high beep will be heard as the receive tone is stored.

Note: