7
Volume
Press the or keys to increase or decrease the volume. The radio will beep with each key press
and the display will flash to indicate the volume setting. The volume level can be set from 01 (min) to
15 (max). The display will stop flashing and return to the selected channel display a few seconds after
the last volume adjustment.
Note:
At minimum volume setting there should still be sufficient volume to be heard in a quiet cabin
environment.
Selecting Channels
Press the or keys to step up or down through the channels.
Transmitting
To transmit, press the PTT button. Hold the microphone about 5-8 cm from your face and speak at
a normal voice level. The microphone is quite sensitive so it is not necessary to raise your voice or
shout. Release the PTT when you have finished talking.
Important:
Always listen to ensure the channel is free before transmitting.
CTCSS (Continuous Tone Coded Squelch System) and DCS (Digitally Coded Squelch)
CTCSS (Continuous Tone Coded Squelch System) and DCS (Digitally Coded Squelch) are squelch
quieting systems that allow several groups of users to share the same channel without disturbing
each other. The system applies a continuous low-level tone to your transmission and uses a matching
tone decoder to control your receiver’s Squelch. With CTCSS or DCS enabled, the channel remains
quiet to all incoming signals unless they carry the correct tone. When a transmission with the correct
tone is received, the squelch opens and remains open for as long as the signal is present. When the
transmission ends the channel becomes quiet again. Transmissions that do not use the correct tone
will not to be heard. There are two tone sets installed in your ML801 comprising 50 CTCSS and 104
DCS user-selectable tones.
The ML801 allows CTCSS or DCS to be enabled or disabled on individual channels.
