Communication Selection Guidance - AOR ARD9900 Operating Manual

Communication Selection Guidance

The following is a list of communication modes for the ARD9900. Choose the
most suitable communication mode for your applications.
Factory default setting is the non encryption
mode (Communication mode: 0).
Communication
Mode
Non Encrption
Mode
Digital Squelch
Mode
Fixed Encrption
Mode
Random
Encrption Mode
1
Random
Encrption Mode
2
Random
Encrption Mode
3
Random
Encrption Mode
4
When the falg value is set to [80], enter the algorithm value for either [00] or [01] only.
No other value must be entered.
When the flag value is set to [00], enter algorithm value between [00] to [79]. No other
value must be entered.
Scramble function will be valid only in the random encryption mode when the algorithm is
set to between [80 – 99]. During the communication, the encryption code will be changed
in every 20 mSec according to the algorithm
Mode Setting
Flag Algorithm
0 80 00
1 80 01
2 00 00-79
3 40 00-79
3 40 80-99
3 50 00-79
3 50 80-99
(Note: Encrypt: Encryption
Encrpt. SQ Air Key at
No No
No Yes
Yes No Preset
Yes Yes Received
Air Key
Yes No Received
Air Key
Yes Yes Received
Air Key
Yes Yes Received
Air Key
SQ: Squelch RX: Transmission )
22
Function
Air Key Scrambl
RX TX e
--- --- ---
--- --- ---
No Fixed
Preset Fixed
Preset Variable
Random Fixed
number
Random Variable
number