UNIMO Technology PK-100N, Service Manual

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5. Operating Instructions of PK-Series Radio
5.1 Power On/Off
Turn Power switch clockwise. As soon as power is supplied, the backlight will be turned on. If the user had set
up the user ID and the name, they will be displayed on the LCD and the radio will enter into the latest state as a
signal sound is generated.
☞
Caution) When turning (power) on the radio by pressing a button on it, the radio may enter into a special
modes like a program mode, tune mode or clone mode in which transmission and reception is impossible.
Please don’t turn on the radio by above way.
Figure 5.1 User ID and Name
5.2 Transmission Method
For transmission, press PTT button on the left side of the radio. As soon as the user presses keys according to the
setting, DTMF or 5-tone ID will be transmitted, and during this time, voice communication will be interrupted
for several seconds. Then, red LEDs for transmission and reception will be turned on. It is recommended to talk
5 ~ 10cm away from the microphone for the best voice communication.
☞ Note: If the user makes transmission for more than a certain time while BCLO or TOT feature is on,
transmission will be forcefully disconnected for other users.
Figure 5.2 Reception Screen Figure 5.3 Transmission Screen
5.3 Reception Method
The user should not press PTT button during the reception . The user can adjust the volume by Power (Volume)
switch, and during reception, the green LED will be turned on. Depending on conditions of the transmitting radio,
DTMF or 5-tone sound is generated, and sometimes, the caller’s name is displayed. (Refer to Caller ID Mode
[Paging mode.]) Also, an antenna-shaped symbol is displayed on the LCD to show the Received Signal Strength