Standard Horizon MATRIX GX1280S Owner's Manual page 46

VOLUME KEY ( VOL )
Activates the volume adjusting mode.
Press this key to activate the volume adjusting mode. Press the
microphone's [ p ] or [ q ] to adjust the volume.
POWER SWITCH ( PWR )
Press and hold down this key to turn to the transceiver and RAM Mic on
and off.
PTT ( Push-To-Talk ) SWITCH
Activates transmission.
[ H/L ] KEY
Toggles between high and low power. When the [ H/L ] key is pressed
while the transceiver is on channel 13 or 67, the power will temporarily
switch from LO to HI power until the PTT is released. The [ H/L ] key does
not function on transmit inhibited and low power only channels.
[ p ]( UP ) / [ q ]( DOWN ) KEY
These keys used to select channels, adjusts the volume and squelch
level, and to choose the item selection of different functions (such as the
DSC operation). In many ways, these keys emulate the function of the
transceiver's CHANNEL selector knob.
[ 16/9 ] KEY
Immediately recalls channel 16 from any channel location. Holding down
this key recalls channel 9. Pressing the [ 16/9 ] key again reverts to the
previous selected working channel.
Secondary use
Please see secondary use for the [ WX ] and [ MEM ] key.
KEY PAD
[ SCAN ] Key
1. Starts and stops scanning of programmed channels.
2. If held while the [ UP ( p )] or [ DOWN ( q )] key on the microphone are
pressed or CHANNEL selector knob on radio is turned, the radio will
show the channels programmed in scan memory. This function will
not work if the unit is scanning.
NOTE: The priority channel is channel 16 only.
Page 46
FCC ID: K66GX1280S
GX1280S
Vertex Standard Co., Ltd.