Vertex Standard VM-3500E Owner's Manual page 57

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.
[ ]( UP ) / [ ]( DOWN ) KEY
These keys are used to select channels, adjust 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 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 ( )] or [ DOWN ( )] key on the microphone are
pressed, the radio will show the channels programmed in scan
memory. This function will not work if the unit is scanning.
NOTE: The priority channel by default is Channel 16, however the
priority channel can be changed. To select a different priority channel
refer to section "10.6 SCAN TYPE."
[ CALL/SET ] Key
The [CALL/SET] key functions as the enter key.
Secondary use
Press the [ CALL/SET ] key to access the DSC OPERATION menu.
Press and hold the [ CALL/SET ] key to access the SETUP menu.
VM-3500E Page 57