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Programming CTCSS Code
1. Select a desired channel to be used with
CTCSS.
2. Press and hold
[CTCSS] for 1.5 secs. CTCSS icon blinks.
3. Press [▲] or [▼] to select the desired CTCSS code.
4. Press
[CTCSS] to save the selected
code. CTCSS icon stops blinking.
NOTE: UH-052XR will return to standby
mode after 10 secs. of no activity.
CTCSS code can be programmed on
every channel. There are 38
available CTCSS tone per channel.
CTCSS Scan Operation
1. Press
[SCAN] to start scanning (GS or OS) mode.
2. Press and hold
[CTCSS] to change to CTCSS scan mode.
3. During scanning and a signal is sensed on a CTCSS CH, the
UH-052XR stops for about 400msecs (decode time) to decode the
CTCSS code. If there is no code or the receive code does not match
the one programmed on the unit, the unit resumes scanning.
On the example below only radio 1 and 9 can communicate or hear each
other because they are using the same or common CTCSS code.
➤ Built-in Voice Activated Circuit (VOX) feature enables user to
transmit automatically by speaking on the microphone of the VOX
headset (not supplied) without pressing the PTT switch.
1
9
2
3
CH1
Code 1
CH1
Code 1
CH1
Code 7
CH1
No CTCSS Code
CODE 1
CODE 7
CTCSS
BCL VOX
CTCSS
OS/GS
LOCKDUP
13