10 | CT710 Instruction Guide CT710 Instruction Guide | 11
Basic operations
Antenna
Insert the base of the supplied antenna into the SMA connector by rota-
ting the antenna clockwise, then make sure that it has set down. Take out
the antenna from the base by counter clockwise rotation until pull out it
from SMA connector.
Turning on and off the power
If you want to turn on the power, rotate the PWR/VOL (turning on) knob
clockwise until a beep sound is heard. All icons and frequencies appear
on the screen. (Due to the automatic squelch function, the speaker will
not send out any sound before receiving a call). You can adjust your desi-
red volume by turning the button. If you want to turn off the power, turn
PWR/VOL knob in counter clockwise rotation until a beep is heard. All
icons and frequencies disappear from the display.
Monitoring function
If you hold down the ENTER key for two seconds and adjust your desired
volume by PWR/VOL knob, you can directly hear a background noise wi-
thout waiting to receive any signals. If you press the PTT key, the squelch
will turn off.
Transmitting
Press the PTT key then speak to the radio in ordinary tone. The transmit-
ting indicator lights up red while the PTT key is pressed.
If you are too close to the microphone or your voice is too loud, the re-
ception won’t sound clear.
Release the PTT key so as to listen a response from your partner.
Select Mode
You can select four different operative modes:
1. Dual-band mode
2. Single band mode
3. Channel mode
4. Frequency mode.
Press flank key1 for two seconds to enter or exit the dual-band or single-
band mode.
Dual-band mode
When the dual-waiting mode is selected, the display will show two bands
A or B. When the band A is displayed, it means that frequency A can recei-
ve and transmit, but the other frequencies on the B band can only receive
and cannot transmit. Same thing if the band B is displayed. To switch to A
or B band press briefly flank key1.
Single-band mode
Press flank key1 for two seconds. The display will show:
R 145.025
T 145.025
Now the radio works in single band mode only. To switch from one band
to another, press flank key1.
Channel Mode
Press the VFO/MR key to switch to channel mode. Different options can
be displayed:
• Display the current channel number
CH-001 the current channel is the first channel.
• Display the current channel name and channel name
CH-001 current channel name in use
(in this case channel 1).
The name is programmable via software.
001
current channel
• Display the receive / transmit frequency and the current channel
R 145.025 receive frequency
T 145.025 transmit frequency
001
current channel.
