GME TX665 User Manual
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I N S T R U C T I O N M A N UA L
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NOTE:
Silent mode will only be enabled on channels you select. Other channels will
remain open to all incoming signals.
To Disable Silent mode on a Channel
1. Select the required channel. The CTCSS/DCS Code will be displayed.
2. Press and hold the SQL key for about 2 seconds. The selected code number will
disappear from the display on that channel. The selected channel will now be open
to all incoming signals.
TRANSMITTER POWER
The transmitter power can be set to High or Low on a channel-by-channel basis
(except 5/35).
To Set the Transmit Power
1. Hold the MENU key for 2 seconds. The channel number will flash.
2. Briefly press the MENU key repeatedly until ‘Po’ is displayed. ‘Hi’ or ‘Lo’ will be
flashing.
3. Press the or keys to select the required power setting. Select ‘Hi’ for high
power or ‘Lo’ for low power.
4. Press the PTT to confirm and store your selection.
The radio should now display the selected channel number along with the HI or LO
icon to indicate the transmit power you have set on that channel.
VOX SETTINGS
The VOX feature allows you to have hands-free conversations. When you speak, the
microphone automatically detects your voice (or other nearby sound) causing the
radio to transmit without the need to press the PTT.
To enable VOX operation
1. Hold the MENU key for 2 seconds. The channel number will flash.
2. Briefly press the MENU key repeatedly until ‘Vo’ is displayed.
3. Press the or keys to set the VOX sensitivity from 1 (min) to 3 (max).
A minimum setting requires a louder voice to activate the VOX while a maximum
setting will activate the VOX with a much softer voice.
4. To disable the VOX completely, set the VOX sensitivity to ‘oF’.
5. Press the PTT key to confirm and store your selection.
When VOX is enabled, the icon is visible on the display.
NOTE:
Using the radio in a noisy environment with the VOX sensitivity set to
maximum could cause the radio to transmit unexpectedly. If this happens simply
reduce the sensitivity setting.
SQUELCH LEVEL SETTING
The Squelch is designed to keep the radio quiet when there are no signals present.
The Squelch setting adjusts the sensitivity of the Squelch to incoming signals. Higher
Squelch settings require stronger signals to overcome the Squelch and be heard in the
speaker while lower settings allow much weaker signals to be heard.