Gme TX3220 User Manual download pdf (Page 4)

Adjusting the Squelch level

The TX3220’s default squelch level has been factory set

to provide optimum performance under most operating

conditions, but can be adjusted to suit changing conditions

if required.

To adjust the Squelch level

First press and hold the SQL key while rotating the

channel selector knob. ‘BUSY’ will ﬂash indicating the

TX3220 is now in the Squelch Edit mode (you can now

release the SQL key). Continue rotating the channel

selector knob clockwise or counter-clockwise to select the

required Squelch level. (1-9).

A level of 1 will allow the Squelch to open on very weak

signals, whereas a level of 9 requires reasonably strong

signals to overcome the Squelch. The default level is 2.

To exit and save the current Squelch level:

Press and hold the SQL key for 1.5 seconds (or simply wait

5 seconds for the Edit mode to time-out).

DUPLEX SWITCH

Duplex operation allows the TX3220 to transmit on a

different frequency to that which it receives. This allows

operation through any repeater stations in your area.

Repeaters automatically re-transmit your signal over a

wider area, providing greatly increased range.

The Duplex function operates only on channels 1-8.

When Duplex is selected on one of these channels, the

TX3220 receives on that channel but actually transmits

30 channels higher.

e.g.

* Emergency Channel only

The TX3220 allows you to select Duplex operation on

individual channels. This is particularly useful in country

areas where there may only be one or two repeaters. Then

unused repeater channels can be used for normal simplex or

direct radio-to-radio communications.

To select Duplex on individual channels

1. Select the required channel 1-8.

2. Brieﬂy press the

DUP key. ‘DUP’ will appear on the

display accompanied by a high beep.

To remove Duplex from a channel

1. Select the required channel 1-8. ‘DUP’ will be visible

on the display.

2. Brieﬂy press the

DUP key. ‘DUP’ will disappear from the

display accompanied by a low beep.

PRIORITY CHANNEL

The Priority Channel feature allows you to store one of the

40 channels in the TX3220 as a priority channel that can be

instantly recalled at the press of a key. This can be used to

provide instant access to your working channel or your local

repeater channel.

To store a Priority channel

1. Select the required channel.

2. Press and

hold the PRI key. The channel display will

ﬂash for a moment then a high beep will be heard as the

selected channel is stored.

To recall a Priority channel

Brieﬂy press the PRI key. The TX3220 will immediately

switch to the Priority Channel accompanied by a high beep.

SCANNING

The TX3220 has a Scan function that allows groups of user

programmable channels to be scanned for activity. Channels

are scanned at a rate of 20 channels per second. If a busy

channel is found, scanning will pause to allow the signal to

be heard. Once the channel has been clear for 5 seconds,

scanning will resume automatically.

Scan Groups

The TX3220 has two available Scan groups - Open Scan

and Group Scan.

Open Scan allows any of the channels to be scanned

for activity in an ascending sequence. If a busy channel is

found, the scan will pause to allow the signal to be heard.

Once the channel has been clear for 5 seconds scanning will

resume automatically.

e.g. Scanning channels 1-40 in Open Scan

roup Scan allows you to transmit and receive normally

on your Priority channel but between breaks in the

conversation the radio will scan and listen to several other

channels ONLY WHILE THERE ARE NO SIGNALS ON

THE PRIORITY CHANNEL.

1 - 2 - 3 - 4 - . . . . . . . . . . - 39 - 40

PAGE 4 IN S T R UCTION MANUAL TX 3 2 2 0

Channel Selected 1 2 3 4 5* 6 7 8

Receive Channel 1 2 3 4 5* 6 7 8

Transmit Channel 31 32 33 34 35* 36 37 38

1 2 3 4 5 6 7 8 9 10 11 12

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Gme TX3220 User Manual Page 4

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