AOR ARD9800 User manual

®
ARD9800
FAST RADIO MODEM
Multi-Mode and Digital Voice Interface
Operating manual
AOR, LTD.

1
Thank you for purchasing the AOR ARD9800 Multimode And Digital Voice Interface.
The ARD9800 is designed to con ert your HF radio equipment to a multi mode
and digital oice radio without performing any modifications to your transcei er.
Please read through this instruction manual and familiarize yourself with the
operation of the ARD9800. We suggest you to keep this instruction manual for future
reference.
We belie e you will enjoy using the ARD9800 as an enhancement to your enjoyment
of amateur radio.
AOR, LTD.

2
Feature :
 Digital oice communications using existing analog 2 way radios. The ARD9800
uses the same audio frequencies (300 Hz ~ 2500 Hz) as microphone audio to
modulate the oice signal. This allows you to use an analog radio as a digital oice
transcei er.
 Digital oice communications in the Single Side Band (SSB) mode. The automatic
frequency clarifier function adjusts frequency drift automatically in the SSB mode.
(Approximately up to +/- 125 Hz). Utilizes the ODFM (Multi Carrier Modulation)
circuit that is effecti e against Multi-path or Selecti e Fading.
 Automatic digital recei e. Automatic oice signal detector recognizes the recei ed
signal as analog or digital, automatically switching to the appropriate mode.
 Digital Slow Scan TV (SSTV). Built-in ideo capture function (NTSC or PAL
depending on ersion). Compresses the signal into our original adapti e JPEG. Send
and recei e images (similar to analog slow scan TV, but higher resolution) in the
Digital mode. Built-in ideo output connector (NTSC or PAL depending on ersion)
allows iewing the picture on an external monitor.
 Built-in high grade Vocoder (AMBE). Uses high grade digital oice compression to
deli er quality digital oice communications.
 Built-in FEC error correction. A powerful error correction circuit deli ers stable and
reliable communications.
 Data communications on the HF band Data communication is possible on the HF
(High frequency) bands at no extra cost. (Speed may be limited by regulations in
certain jurisdictions.)
 Small and compact unit. Easy to operate. Simply connect the ARD9800 to the
microphone jack. No complicated or risky radio modifications are necessary.
 Utilizes a uniquely designed high performance DSP (Digital Signal Processor)
engine.
 Battery operation possible for field use.

3
Precaution
To pre ent fire, personal injury, or unit damage, please obser e the following
precautions:
 Do not attempt to adjust this unit unless instructed to do so by this manual.
 Do not expose the unit to direct sunlight or place the unit close to heating appliances.
 Do not place the unit in excessi ely dusty, humid or wet areas.
 We are not responsible for any damages to the radio equipment due to improper
settings or interface.
 We are not responsible for any loss of communications due to an unexpected change
in propagation or the operating en ironment.

4
Table of Content
Page
Supplied Accessories ---------------------------------------------------------- 5
Controls and functions -------------------------------------------------------- 6
Front Panel ------------------------------------------------------------------- 6
Rear Panel -------------------------------------------------------------------- 8
Top Panel ----------------------------------------------------------------------- 10
Internal View ------------------------------------------------------------------ 10
Bottom View ------------------------------------------------------------------ 11
Interfacing the ARD9800 ------------------------------------------------------ 12
Connection to a Radio ----------------------------------------------------- 12
Connection to a Microphone -------------------------------------------- 13
Connection to a PC -------------------------------------------------------- 13
Connection to a Power supply ----------------------------------------- 13
Connection to an external speaker ------------------------------------ 14
Presetting ----------------------------------------------------------------- 15
Output Le el to Radio Transcei er -------------------------------------------- 15
Microphone Le el ----------------------------------------------------------------- 16
User ID Setting ------------------------------------------------------------------- 17
TX Channel Setting --------------------------------------------------------------- 17
Operation ----------------------------------------------------------------------------- 19
Voice Communication ----------------------------------------------------- 19
Digital Voice Communication ------------------------------------ 19
Analog Voice Communication ---------------------------------- 19
Data Communication ------------------------------------------------------- 19
Recei e --------------------------------------------------------------- 19
Transmit ------------------------------------------------------------------ 19
Digital Image Communication ------------------------------------------ 20
Recei e ------------------------------------------------------------------ 20
Transmit ----------------------------------------------------------------- 20
Specifications ------------------------------------------------------------------------ 21
Control Commands ------------------------------------------------------------- 22
Command List -------------------------------------------------------------------------- 24

5
Supplied Acce orie
The following items are pro ided in the box:
Accessory Quantity
Microphone 1
PC interface cable 1
Speaker Cable 1
DC Power cable 1
8P metal plug (for radio cable) 1
Instruction manual 1

6
Control and Function
Front Panel
a. Power on/off witch
b. TX witch
Press this switch to capture image and send. When the Video Through
Function is acti ated (AVT command is ON), pressing this switch will
enable output of the ideo signal connected to the Video Input to be
bypassed to the ideo output so that you can monitor the ideo image. Press
this switch again to capture the image and then transmit it through the radio
equipment.
When the Video Through Function is de-acti ated (AVT command is OFF),
pressing this switch will automatically capture the ideo image and then
transmit it through the radio equipment.
Refer to : Operation -- Digital Image Communication at page 20 for details.
c. 2 color LED
Illuminated red The unit is in the transmit mode
Blinking red In the digital communication mode, it blinks while
the header information is being sent. (approximately
one (1) second)
Illuminated Green The unit is in the recei e mode
Unlit The unit is in the recei e standby mode or in the
analog oice recei e mode.
d. Statu LED (STA LED)
It is lit when unsent data remains in the memory.
It is lit with orange color when Video Through Faction is acti ated in digital
ideo communication mode.
It is not lit when Video Through Function is deacti ated by the dedicated
command (AVT_OFF) though PC. Because, TX switch acti ates a sequential
faction of capturing and transmission.
It is also lit with orange color when unsent data is remained in the memory in
the data transmission mode.
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7
e. Speaker volume adju tment
Adjustment for internal speaker output le el. When an external speaker is
connected, external speaker le el is also adjusted.
f. Operation Mode LED (3 color )
Indicates the current operation mode:
Green color Digital Voice mode
Red Color Analog Voice mode
Orange Color Data Communication mode
Not lit Digital Image Communication mode
g. Tran mitting channel (Rotary Switch)
It consists of 16 channels. Each channel can be programmed with a
Transmitting ID for distant station, NetMask, etc. Freely programmable
depending on the communications scheme.
h. Overload indicator
Lit when the microphone input is o erloaded.
A proper microphone input le el will light the LED from time to time when
speaking into the microphone at a normal oice le el. The microphone le el
can be changed by adjusting the microphone le el controller.
Refer to Level Adjustment - Output Level to Radio Transceiver at page16
for details.
i. Mode witch
Select the Digital oice mode (10101) or the Analog oice mode (~) When
the Analog oice mode (~) is selected, ordinary analog oice communications
will be made. In the recei e mode, howe er, the ARD9800 will automatically
detect the mode of the incoming signal and decode signals accordingly. The
LED indicates the appropriate operation mode.
j. Microphone connector
Connect the supplied microphone to this connector. Below are the pin
assignments of the connector.
1. Speaker output (SP-OUT)
Monitor output signal is present at this pin.
2. BIAS
Power source for an electric condenser type of microphone. 5V DC
through 2.2KΩ resistor.
3. GND
Chassis ground
4. TX
Grounding this pin will enable the transmit mode.
(Same operation as the TX switch on the front panel.)

8
5. D/A
Grounding this pin will force the unit to the digital oice
communication mode. When this pin is left open, the operation mode
will be set by the mode switch on the front panel.
6. MIC PTT
PTT (Push To Talk) input.
7. MIC GND
Microphone ground signal
8. MIC IN
Microphone signal input
Rear Panel
k. Communication Connector (mini DIN 8 pin)
A communication connector for PC (RS-232C)
Pin Number Signal Signal Direction
1 TX ARD9800----->PC
2 DTR ARD9800----->PC
3 DSR ARD9800<-----PC
4 GND GND
5 RX ARD9800<-----PC
6 RTS ARD9800----->PC
7 CTS ARD9800<-----PC
8 NC No Connection
Shell FG Frame ground
Baud Rate: 9600bps
Data Length: 8
Start bit: 1
Stop bit: 1
Parity: None
Synchronization: Asynchronous
Flow control: Hardware
SP
DC IN
AOR,LTD.
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RADIO
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VIDEO
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9
l. VIDEO - IN connector (75Ω
ΩΩ
Ω)
Connect a ideo signal source such as a digital camera.
m. VIDEO – OUT connector (75Ω
ΩΩ
Ω)
Connect a ideo monitor to this connector to monitor the recei ed image or a
picture to be sent.
n. RADIO Connector
Using the supplied 8 pin connector, connect the ARD9800 to your radio
equipment. You will need to wire a cable according to the microphone
connector specifications of your radio (refer to your radio’s manual).
Below are the pin assignments of the ARD9800 connector.
Pin number Signal Detail
1 MIC GND Microphone ground
2 MIC OUT Microphone Output
3 PTT (H) PTT (Push To Talk) output (High le el)
4 PTT (L) PTT (Push To Talk) output (Low le el)
5 NC No connection
6 NC No connection
7 GND Ground
8 NC No connection
Note: M C GND and GND must not be connected together in the ARD9800
connector, or RF feedback will result.
o. SP IN Connector (3.5 mm mono jack)
Connect to the radio equipment’s speaker jack. (Input le el: 0.5 V – 5 V p-p)
Note: Output signal from the accessory connector of the radio may not be
high enough to use for this purpose.
p. SP OUT Connector (3.5 mm mono jack)
Connect an external speaker to this jack to disable internal speaker.
q. DC IN Connector (EIAJ Type 4)
Connect to a regulated power supply. (10.7 ~ 16.0 V DC, Center pin – positi e)