AOR ARD9800 Receiver Instruction Manual

 20 
 
        Transmit 
Enter the command [ACO] to go into the converse mode. 
Type text from the keyboard,  then hit the enter key at the end of the text. 
 
NNNNNNNN [CR] 
 
     NNNNNNNN    ASCII character 
     [CR]                       Carriage Return 
Note:  Maximum data length is 2046 bytes per packet. 
  
   To send binary data, add [FE] (hexadecimal) to a header and footer with the data. 
 
FE BBBBBBBBBBBBBBBB FE 
 
BBBBBBBBBBBBBBB  Binary data 
FE                                           ID...

 21   Digital Image Communication 
Note: An optional memory module is required to use this function. 
 
    
   Receive 
W hen valid digital image data is received, it will be decoded and output as a video image from the  
VIDEO OUT connector. 
 
If received data is missing during a transmission, that portion will be displayed as invalid (like noise). 
 
   Transmit 
W hen pin - 4 of the microphone connector is grounded, the ARD9800 starts sending the image. 
 
 Note: W hen the Video Through Function is...

 22  Specifications 
 
OFDM Band W idth: 300 Hz ~ 2.5 KHz,  36 carrier 
Symbol Rate 20 mS  (50 Baud) 
Guard Interval  4 mS 
Tone Space  62.5 Hz 
Modulation Method 
Individual Tone 
Modulation 
Method 36 carrier:    DQPSK(3.6K) 
Auto Frequency 
Offset   +/- 125 Hz 
Error Correction  Data:  Reed Solomon + Vitabi   Decoder                    Voice: Golay + Hamming 
Header  1 second, 3 tone + BPSK training pattern for synchronization 
Digital Audio  AMBE ® 2020  Coder/Decoder 
Mode Selection  Receive:...

 23   
Control Commands 
 
  Interfacing to a PC 
Using the supplied PC interface cable, connect between the COM connector at the rear panel (marked  
as [10101] ) to the serial port of a PC.  
 
NOTE: Be sure your PC’s serial port is active. Check for correct hardware and software settings! 
 
Below are the pin assignments of the COM connector of the ARD9800. 
 
ARD9800 COM connector                       Serial connector of  a PC (D-Sub 9 – pin) 
Pin #...

 24 
 
Command Format 
Run a terminal software program, and then turn the power of the ARD9800 on. 
The following message should appear on the PC screen: 
 
cmd> 
 
This indicates the ARD9800 is ready to accept commands from the PC. 
 
Each command consists of three (3) alphabetical characters. 
 
cmd>CCC_NN [CR] 
 
CCC:   Command   (Must be  a capital letter) 
_:          Space 
NN:      Parameter 
[CR]:   Carriage Return 
 
Entering a command without a parameter will display the current parameter...

 25 
 
Command List 
 
Command Function 
AAQ Send VIDEO In signal to VIDEO OUT (to a monitor screen) 
Capture image into memory of the ARD9800 
ACO Enter the Converse mode 
ADC List the current commands 
ADS Display current settings 
AFC Activate  AFC (Automatic Frequency control) function 
AHL Set the duration of the synchronization header 
ALF Add the LF (Line Feed) code at the end of the CR code 
ARA Monitor both digital/analog voice signal or monitor digital voice only 
AT T Select output level for...

 26   
 Command details 
 
 
AAQ 
Function Send VIDEO In signal to the VIDEO OUT (to the monitor screen) Capture image 
into memory of the ARD9800 
Default None 
Format AAQ  {0 / 1}  [CR] 
Parameter 1:  Send VIDEO In signal to a VIDEO OUT (to the monitor screen) 0:  Capture 
image into memory of the ARD9800 
Details W hile AVT command is OFF, [AAQ  0] will be accepted. 
Entering AAQ[CR] will respond with the current status. 
 
AAQ ON  ---  Video signal is passed to the VIDEO OUT port 
AAQ OFF    ----...

 27 
 
ADC 
Function List the current commands 
Default None 
Format ADC [CR] 
Parameter None 
Details Lists the current commands 
Example ADC [CR] 
 
 
ADS 
Function Display current settings 
Default Headerlen : 1.00 
AFC = ON 
Analog : ON 
Format ADS [CR] 
Parameter None 
Details Displays the current parameter settings 
Example ADS [CR] 
 
 
AFC 
Function Activate  AFC (Automatic Frequency control) function  
Default On 
Format AFC  {ON/OFF}  [CR] 
Parameter ON:  Activates the AFC function 
OFF:...

 28 
AHL 
Function Set the duration of the synchronization header 
Default 100  (1 second) 
Format AHL  {050 – 198}  [CR] 
Parameter 050 – 198  (0.02 incremental) 
Details Sets the duration of the synchronization header 
{100} represents 1.00 second . 
Example AFC_146 [CR]        

 29 
 
AT T 
Function Selects the output level to the radio equipment 
Default ON 
Format ATT_ {ON/OFF} [CR] 
Parameter ON :   Lower level 
OFF : Higher level 
Details Selects the  output level to the radio equipment Refer to Level Adjustment  at  page  XX    for details 
Example ATT_ON [CR] 
  
 
AT X 
Function Send digital image 
Default None 
Format ATX [CR] 
Parameter None 
Details An image must be captured and stored into memory before it can be sent.  
 
Note: Optional memory module MUST be...