Mountain Lab Gear RD1, User Manual

    a. Press the Menu/Power button to enter the new setting and
        proceed to other functions.
    b. Press “PTT” button to save the setting and return to Stanby
        mode.

To set VOX sensitivity

      
2. Press the “UP” or “DOWN” button to change the setting.
3. Choose one of the following:
    a. Press the MENU button to enter the new setting and

        proceed to other functions.
    b. Press “PTT” button to save the setting and return to Standby mode.

Call Tone

Press “     ” button  to transmit your call tone, alerting users on 
the same channel and code that you are about to talk. Your radio 
has 10 call tones to choose from. 

To Set the Call Tone

• With the radio on, press “MENU” button until "C" appears in the
  display.
• Current call tone setting will begin to flash.
• Press “UP” or “DOWN” to change and hear call tones while the 
  setting number is flashing.
• Press “PTT” to set new call tone.

Room Monitor

Enables your radio to detect voice/noises (according to the 
sensitivity level set) and transmit back to the listening radio

•  The radio’s display will show the channel and code on which 
   activity was detected.
• If you want to respond to the transmission, press “PTT” button
   within 5 seconds and you can respond.
• The radio will resume scanning after 5 seconds of inactivity on the 
   channel.
• To stop scanning, briefly press and release “MON” button.

Advanced Scan

If scan stops on a channel that you don’t want to listen to, briefly 
press “UP” or “DOWN“ button to resume scanning for the next active
channel.

Hands Free Use (VOX)

VOX allows you to transmit "hands-free" by talking while using VOX
accessories connected to the radio (not included).
Note: Turn your radio off before you place the accessory on your

head or in your ear. 

How To Use The VOX Feature

In VOX mode, your radio can be used “hands-free,” automatically
transmitting when you speak. You can set the VOX sensitivity level 
to fit the volume of your voice and avoid transmissions triggered by 
background noise. 

To turn VOX mode on or off

1. Press the MENU button until the VOX icon flashes on the

display. The current On or Off setting is displayed.
2. Press the “UP” or “DOWN” button to turn VOX On or Off.
3. Choose one of the following:

8

9

1.  

Press the Menu/Power button until the VOX sensitivity icon "L"

flashes, and the current sensitivity level is displayed (01-05).