4
5
GB
3.9.1 Squelch (hiss reduction)
“Squelch” means that background hiss in the earphones is prevented when the incoming signal is below the set squelch
level.
Press the + button (A:11) or – button (A:12) to adjust the squelch level. Each change is confirmed by a voice message.
You can choose between five levels or switch this function off. A low squelch level may permit longer range. To switch this
function off, press the – button (A:12) for two seconds. This is confirmed by the message “squelch off”. Press the + button
(A:11) to switch this function back on.
3.9.2 Sub channel (selective squelch)
When sub channel is active, an inaudible code will be transmitted with speech, and this code is used to “open” the receiver.
This allows multiple groups of users to use the same channel without hearing other groups. This product supports CTCSS,
Continuous Tone Coded Squelch System, (table H) and DCS, Digital Coded System, (table I) which means there are 121
codes which have been assigned the numbers 1–121. All communication on a channel can be heard if this function is
switched off.
Press the + button (A:11) or the – button (A:12) to select the sub channel. Each change is confirmed by a voice message.
You can choose between 121 tones or switch this function off. To switch this function off, press – (A:12) when sub channel
1 is selected or press the + (A:11) button when channel 121 is selected. This is confirmed by the message “sub channel
off”. Press the + button (A:11) to switch this function back on.
Note! When the sub channel function is switched on, all other incoming radio communication will be blocked.
Note! BCLO (Busy Channel Lock Out) prevents transmission on a busy channel (see 3.8 VOX).
3.9.3 Power (radio transmitted output)
There are two output power levels, high and low. Use as low output as possible to maximise the run time.
Press the + button (A:11) or – button (A:12) to set the level. Each change is confirmed by a voice message.
3.10 Set up menu (configuration menu)
The configuration menu gives access to more advanced settings for the headset. This menu is accessed in power off mode
by pressing the PTT auxiliary button (A:16) and the On/Off/Mode button (A:10) at the same time. To exit the set up menu
press and hold the On/Off/Mode button (A:10) for 2 seconds and the headset will be turned off.
3.10.1 BCLO (Busy channel lockout)
This menu setting let you change the way the headset reacts when you try to transmit on a busy channel.
There are two options to choose from: “carrier” and “sub channel” (code) with or without a warning tone. If you want the
headset to respond to the carrier wave, select the “carrier” option; if you want it to react to the sub channel, choose the
“sub channel” option. Press the + button (A:11) or – button (A:12) to select the BCLO setting. Each change is confirmed by
a voice message.
3.10.2 Max transmission time
This function lets you adjust the maximum transmission time. The time can be chosen between 30 seconds up to 5
minutes and off-mode. Press the + button (A:11) or – button (A:12) to adjust the maximum transmission time. Each change
is confirmed by a voice message.
3.10.3 Automatic power off
The headset is switched off automatically when there is no activity (no button is pressed or no VOX transmission) for a
set time. This time can be adjusted here (maximum time is 8 hours) or this function could be disabled. Press the + button
(A:11) or – button (A:12) to adjust the automatic power off time. Each change is confirmed by a voice message.
3.10.4 External mode
The external mode can be configured for different types of equipment that are connected to the headset. You can switch
between external PTT mode, input source mode (e.g. FM/AM radio), phone mode (e.g. mobile phone, DECT phone), radio
mode (external communication radio). Each has different functions.
Press the + button (A:11) or – button (A:12) to select the function. Each change is confirmed by a voice message.
Warning! The output of the electrical audio circuit on this hearing protector may exceed the daily threshold for sound level.
3.10.5 Microphone input (microphone type)
LiteCom Plus is supplied with a dynamic microphone (MT7) as standard. You can however use an electret microphone
