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values. If you wish to check detailed settings, use the ADS command in the system management mode.
Typical example of channel setting entry for with the ARD9900 set to channel 1:
ACP_12345_11100_8001<CR>
When you then type ACP<CR> at the command prompt, to check this, it will return the following:
CH: 1 ID:12345 NM:FFF00 MD:1 indicating that channel 1 has been set for a remote ID of 12345
where only a match on the first three digits is required and the digital squelch is set to on. The
fact that the number 8001 was used shows that a none encryption mode has been selected and
the digital squelch is set to on.
For details of all the communication modes possible, see page 19 communication Selection
Guidance.
Operation
Note: All adjustments must be properly performed before operation.
Voice Communication
Your ARD9900 is capable of digital or analogue voice communications. In the
receive mode, the ARD9900 will automatically recognise the type of communication,
and set itself to the appropriate mode. In the transmit mode, the desired operating
mode can be selected by using the front panel Mode switch.
Digital Voice Communication
Set the mode switch [10101 ~ ] upward to the digital mode position [10101].
Rotate the Channel switch on the front panel to select the desired communication
code setting.
Press and hold the PTT switch on the microphone. The STA (Status) LED will flash for
about 0ne (1) second while sending a data header signal.
When the LED stops flashing, speak into the microphone normally.
Analogue Voice Communication
Set the mode switch [10101 ~ ] downward to the analogue mode position [~] .
Press and hold the PTT switch on the microphone, and speak into the microphone
normally.
Note: The front Channel switch setting will be ignored in the Analogue Voice Communication
mode.
Force Receive
While in the Non Encryption mode (80) or Fixed code encryption mode (00) if a
Header signal is not properly received during communication, you can "force" the
ARD9900 to receive in the digital voice mode under following conditions:
z
The communication mode is in the Non Encryption mode (80) or the
Fixed Encryption mode (00).
z
The frequency difference between both parties is within +/- 125 Hz.
z
Both parties have the same communication settings.
[Procedure]
Set the mode switch [10101 ~ ] downward to the analogue mode position [ ~ ].
1.
Press and hold the TX switch for about 5 ~ 10 seconds until an audio signal is
2.
heard from the speaker.
Once an intelligible audio signal is obtained, release the TX switch.
3.
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