Vertex Standard VM-3500E Owner's Manual page 21

[ DISTRESS ] Key
Used to send a DSC Distress Call. To send the distress call refer to section
"9.3.1 (Transmitting A DSC Distress Call)."
ACCESSORY CONNECTION CABLE
Connects the VM-3500E to a GPS, a PA speaker, and an external speaker.
DC INPUT CABLE
Connects the radio to a DC power supply capable of delivering 12V DC.
RAM+ MIC CONNECTORS
Connects the VM-3500E to the enhanced RAM+ MIC (Remote Access Mi-
crophone). Refer to section "11 ENHANCED RAM+ MIC OPERATION" for
details.
ANTENNA JACK
Connects an antenna to the transceiver. Use a marine VHF antenna with
an impedance of 50 ohms.
Warning!: The 50 V RF voltage (@25 W/50 Ω) is applied to the TX
RF section of the transceiver while transmitting.
Do not touch the TX RF section absolutely while transmitting.
PTT (Push-To-Talk) SWITCH
Keys the transmitter when the transceiver is in radio mode. If the transceiver
is in the intercom operation mode (between the RAM+ and the VM-3500E),
or PA mode, it activates the VM-3500E microphone for voice communica-
tions.
MICROPHONE
Transmits the voice message with reduction of background noise, using
Clear Voice Noise Reduction Technology.
MICROPHONE SPEAKER
The audio heard through internal radio speaker is heard through micro-
phone speaker.
[ UP ( )] / [ DOWN ( )] KEYS
The [ UP ( )] and [ DOWN ( )] on the microphone function the same as the
CHANNEL selector knob on the front panel of the transceiver.
[ 16/9 ] Key
Pressing the [ 16/9 ] key immediately recalls channel 16 from any location.
Press and hold the [ 16/9 ] key to recall channel 9. Pressing the [ 16/9 ] key
again will revert the radio to the previous selected channel.
VM-3500E Page 21