User's Manual
Professional
FM Transceiver
20
FUNCTION INTRODUCTION
You can sending the Text Message by key, maximum predened 50 Text messages.
Press the One Touch Call key to send a predened Text message to a predened ID.1. 
Red LED turns on.2. 
If the message is sent, two "click" sounds. If the message is not sent, a low tone sounds.3. 
Under standby mode, press "Encryption On/Off " key, and it will switch the transceiver  to encryption 
mode. Other transceivers on the same frequency can not understand the call. Repeat  the operation 
to turn off the encryption function. 
Encryption On/Off
NOTE:This operation is only valid in  digital  mode and only transceivers using the same secret key 
can communicate with each other. The transceiver can support 16 groups of 4 byte secrete key. 
Alarm type
Disabled: Radio can not transmit an emergency alarm, but it can receive the emergency alarm signal 
from other radios.
Regular: Radio transmits an alarm signal with audio.
Silent: Radio transmits an alarm signal without any audio, the receiver radio starts an alarm. There 
Digital Emergency Alarm










