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CPV550
21. ENHANCED RAM+ MIC OPERATION
When the RAM+ microphone is connected to the CPV550, most VHF, DSC, and setup
menus can be remotely operated. The RAM+ Mic is supplied with 23 feet (7 m) of routing
cable and can be extended up to 70 feet (21 m) using three 23 feet extension cables model
CT-100. The intercom operation can be used between the RAM+ Mic and the transceiver.
21.0 RAM+ MIC CONTROLS
SQUELCH CONTROL (SQL)
Activates the squelch adjusting mode.
Press this key to activate the squelch adjusting mode. Press the microphone’s
[
S
S
S
S
S
]
or
[
T
T
T
T
T
]
key to adjust the squelch.
When this key is pressed and held down for 1 second or more, the squelch is turned off.
VOLUME KEY (VOL)
Activates the volume adjusting mode.
Press this key to activate the volume adjusting mode. Press the microphone’s
[
S
S
S
S
S
]
or
[
T
T
T
T
T
]
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.
[
S
](UP)/[
T
](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’sChannel 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.
[SCAN] Key
1. Starts and stops scanning of programmed channels.
2. If held while the
[UP(
S
)]
or
[DOWN(
T
)]
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 “18.11.3 Priority Channel Set.”
