
8 | XT70 user’s manual XT70 user’s manual | 9
Basic operations
Turning on/o
To turn on the transceiver, turn the VOLUME knob clockwise until you hear it
clicks: the LCD display will light up and do an Auto-Test. Subsequently you will
hear 2 beeps of dierent tones.
To turn o the transceiver, turn the knob counter-clockwise until you hear
another click.
Volume control
Turn the knob VOLUME to about half way and adjust it to a comfortable level
as soon as you receive a signal. If you do not receive a signal you can use the
button MON/SCAN described in par. “MON button”.
Displaying the channel/sub audio tone
To momentarily display the PMR446 channel and the subadio tone used in the
pre-set channels, go to the desired channel (from 9p to 24p) and keep pressed
the ▼for 3 seconds.
Transmission and reception
When you press the PTT the transceiver transmits with high or low power (de-
pending on the setting of the MENU: Hor L).
To transmit:
1. Make sure that no one else is currently talking on the selected channel;
2. Keep button PTT firmly pressed: TX and To will appear on the display (if
you have set a CTCSS tone, To wan’t be displayed;
3. Before you start talking wait for a fraction of a second then speak normal-
ly, in the direction of the microphone.
4. When you have finished, release the PTT: TX and To will disappear from
the display;
5. When the radio is in reception mode (PTT not pressed) you will automa-
tically receive any communication (RX displayed).
During transmission and reception try, as far as possible, to keep the antenna in
vertical position and to avoid obstacles towards the direction of the other party.
Transmitting TOT Setting
The TOT function is used to prevent a too long transmission. This function
temporarily blocks transmissions if the radio has been used beyond the
maximum time permitted. Once reached the preset timer (1 minute), the radio
will be forced in reception mode.
MON button (Monitor)
The Monitor button is for temporarily excluding (opening) the squelch, in order
to listen to signals that are too weak to keep the squelch permanently opened.
By excluding the squelch you will avoid listening the communication “chopped”
by the squelch. In order to activate the Monitor function, so as to listen to
all trac on the selected channel, keep pressed the MON/SCAN button for
about 3 seconds. Keep pressed the button MON/SCAN for about 3 seconds
to disable this function.
Scanning all channels
XT70 can automatically search for signals throughout the PMR/LPD bands by
scanning, i.e. selecting the channels in rapid sequence.
Press briefly the button MON/SCAN to start scanning.
When a signal is detected, the scanning pauses on that channel and you can
transmit by pushing PTT . The scroll buttons ▲/▼ allow you to change the
direction of scanning (from lower channels to higher ones or vice versa) and
therefore to skip communications which are of no interest.
If you want to stop it, press again MON/SCAN. Your transceiver will go back
to the channel from which the scanning originally started.
Display backlight
If there is insucient light to read the display you can press the MENU button
to switch the display back light on for about 5 seconds.
Switching the backlight on the display adds an additional drain on the batteries.
Try to make a moderate use of this.
Keypad lock
Keep pressed CALL/ for about 3 seconds and will be displayed as confir-
mation. Only PTT and CALL/ remain active. To disable this function, keep
pressed again CALL/ for 3 seconds approx.