Standard Horizon RAM4X, Owner'S Manual

Page: 4 / 16

2
⑥ Microphone
Yaesu Clear Voice Noise Reduction Technology will reduce the transmitted background
noise, when speaking into the microphone.
Note : Position your mouth about 1/2” (1.5 cm) away from the microphone aperture
and speak in a normal voice.
⑦ ◄ & ► keys
Press these keys to switch the function menu.
Secondary use:
While the MENU screen is displayed, press the key to shift the on-screen menu to
the right/left side.
⑧ MENU
key
Press this key to access the MENU.
⑨ CH▼ & CH▲ keys
These keys are used to change the operating channel.
Press the key momentarily, to increase/decrease the channel one step. Holding the
key, increases/decreases the channel number continuously.
Secondary use:

While the MENU screen is displayed, press the key to shift the on-screen menu
upward/downward.

When in the PA or Fog mode, press the key to change the channel.
⑩ Display
Full dot matrix display (222 x 162 pixels).
⑪ Soft keys
These three programmable keys can be customized using the setup menu mode. When
pressing one of these keys briefly, the key functions will appear at the bottom of the
display.
⑫ Strobe LED
When the [ STROBE ] soft key is pressed, the Strobe LED will light or flash repeatedly.
When the RAM4X comes in contact with water, the Strobe LED will light or flash to
assist in locating the RAM4X in low light conditions.
⑬ 16/S key
Pressing this key immediately recalls channel 16 from any channel location. Holding
down this key recalls the SUB channel (The default setting is channel 9). Pressing
this key again reverts to the previous selected working channel.
⑭ Speaker
The internal speaker is located here.
⑮ DISTRESS
key
This key is used to send a DSC distress call.
⑯ USB jack
Use the micro USB type B jack to connect the SSM-72H ( RAM4X ) battery charger.