TX677 Instruction Manual
12 June 2018
© 2018 Standard Communications Pty Ltd trading as GME. All rights reserved.
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Content
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 switch.
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 ‘Uo’ 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
switch to confirm and store your selection.
When VOX is enabled, the icon is visible on the display.
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.
To set the squelch:
1. Hold the
Menu
key for 2 seconds. The channel number will flash.
2. Press the
Menu
key repeatedly until ‘Sq’ is displayed. The current squelch level will flash.
3. Press the
or
keys to adjust the squelch level from 1 (most sensitive) to
5 (least sensitive) or select ‘AUT’ (Auto) for an automatic setting.
4. Press the
PTT
switch to confirm and store your selection.