Oricom UHF2100 - Manual (Page 12)

12
Operation
These are paired with higher channels as output/input (1/31, 2/32,
etc.)
Check for local repeater activity before using these channels in
Simplex mode to avoid interference. Channels 9 and above are the
best choices for general use in Simplex mode.
You can find more information about channels and frequencies by
visiting the Web site http://www.acma.gov.au/ACMAINTER.786700
:STANDARD:1627891715:pc=PC_1265#Repeaters
Note: Refer to the “Channel Table” section of this Owner’s Manual
for detailed frequency listing.
Setting the CTCSS sub-channel
Each channel has 38 sub-channels to let you set up group of users
within the same channel for more private communication. If you
have set the sub-channel, you can only communicate with other
radio users tuned to the same channel and sub-channel.
To turn the sub-channel function off, simply set the sub-
channel to 0 (zero). You can then communicate with other radio’s
setting to the same channel who also turns off the sub-channel
operation (or whose unit does not have the sub-channel feature).
a. Press the MENU button twice, the current CTCSS sub-
channel number flashes on the LCD screen.
b. Press the UP or DOWN button to select one of the 38
CTCSS sub-channels.
c. Press the PTT button to confirm the CTCSS sub-channel
setting.