GX1280SPage 18
5 CONTROLS AND INDICATORS
NOTE
This section defines each control of the transceiver. See Figure 4 for
location of controls. For detailed operating instructions refer to chapter
6 of this manual.

5.1 CONTROLS AND CONNECTIONS

POWER SWITCH/VOLUME CONTROL
Turns the transceiver on and off as well as adjusts the audio volume. To
turn the transceiver on press and hold this knob until the LCD turns on.
To turn it off, press and hold this knob until the LCD turns off. When the
power is turned on, the transceiver is set to the last selected channel.
Secondary Use
When the transceiver is turned on while the [SCAN] and [WX] keys are
held down, the internal microprocessor is reset. This clears the memory
and all user-programmed settings, such as scan memory, and priority
scan assignments. This condition is known as the default condition, the
same as when shipped from the factory. For a list of these defaults, see
the section 6.18 Resetting the Transceiver’s Microprocessor.
NOTE
Resetting the microprocess will not erase the DSC MMSI and the
Individual Directory Call information.
SQUELCH CONTROL (SQL)
Adjusting this control clockwise, sets the point at which random noise on
the channel does not activate the audio circuits but a received signal
does. This point is called the squelch threshold. Further adjustment of
the squelch control will degrade reception of wanted transmissions.
CHANNEL SELECTOR KNOB
Rotary knob used to select channels and to choose menu items (such
as the DSC menu, radio setup and DSC setup menu). The [UP()] /
[DOWN()] key on the microphone can also be used to select channels
and menu items.
Secondary Use
While holding down the [SCAN] Key and turning the CHANNEL selector
knob, you can confirm memory channels for scanning.