Hytera Communications Corporation Limited PD70XG-VHF User Manual

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Scrambler
/Encrypt
 
The Scrambler/Encrypt feature can encrypt your audio signals to prevent eavesdropping. Thus privacy of 
your communication is guaranteed.   
Operation:   
z
 Press 
the 
programmed 
Scrambler/Encrypt
 key to enable Scrambler or Encrypt on the current 
channel (a high-pitched tone sounds); press the key again to disable the feature (a low-pitched tone 
sounds).   
z
  If the Scrambler/Encrypt feature is enabled for a channel via the programming software, switch to the 
channel to enable the feature, or exit the channel to disable the feature.   
 
Busy Channel Lockout 
If enabled via the programming software, this feature can prevent your radio interfering with other 
transmitting radios on the same channel. If you hold down the PTT key while the channel is in use, your 
radio will keep beeping, alerting you to transmission prohibition. To stop beeping, please release the PTT 
key. When the channel is free, you can press and hold down the PTT key to transmit.   
 
Time-out Timer (TOT)   
The purpose of TOT is to prevent any user from occupying a channel for an extended period. If the preset 
time expires, the radio will automatically terminate transmission and keep beeping. To stop beeping, 
please release the PTT key. You must wait for a certain time period (preset by your dealer) to initiate 
another transmission.   
If the pre-alert function is set by your dealer, your radio will alert you to the TOT expiration in advance. 
 Note:
 This feature is null in Emergency mode.   
 
Pseudo Trunking 
 
This feature can be enabled via the programming software. If your radio operates on a channel with this 
feature enabled and one time slot is already occupied, it can transmit and receive on the other free time 
slot, allowing you to communicate timely under emergent situations. 
 
 
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