AOR ARD9800 Receiver Instruction Manual
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FAST RADIO MODEM ARD9800 ARD9800ARD9800 ARD9800 Instruction Manual Multi-Mode And Digital Voice Interface AOR, LTD. Authority On Radio communications
1 Thank you for purchasing the AOR ARD9800 Multimode and Digital Voice Interface. The ARD9800 is designed to convert your HF radio equipment to a multi mode and digital voice capable radio without performing any modifications to your transceiver. Please read through this instruction manual and familiarize yourself with the operation of the ARD9800 . We suggest you keep this instruction manual for future reference. We believe you will enjoy using the ARD9800 as an enhancement to your enjoyment of amateur radio. AOR, LTD.
2 Features: z Digital voice communications using existing analog 2 way radios. The ARD9800 uses the same audio frequencies (300 Hz ~ 2500 Hz) as microphone audio to modulate the voice signal. This allows you to use an analog radio as a digital voice transceiver. z Digital voice 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 effective against Multi-path or Selective Fading. z Automatic digital receive Automatic voice signal detector recognizes the received signal as analog or digital, automatically switching to the appropriate mode. z Digital Slow Scan TV (SSTV) -- Optional memory module (VM9800) required Built-in video capture function (NTSC). Compresses the signal into our original adaptive JPEG format. Send and receive images (similar to analog slow scan TV) in the Digital mode. Built-in video output connector (NTSC) allows viewing the picture on an external monitor. z Built–in high grade Vocoder (AMBE) Utilizing high grade digital voice compression; delivers quality digital voice communications. z Built-in FEC error correction A powerful error correction circuit delivers stable and reliable communications. z 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.) z Small and compact unit. Easy to operate. Simply connect the ARD9800 to the microphone jack. No complicated or risky radio modifications are necessary. z Utilizes a uniquely designed high performance DSP (Digital Signal Processor) engine z Battery operation for field use.
3
Information to the Digital Device user required by the FCC
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation.
This equipment generates, uses and can generate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that the interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
z Reorient or relocate the receiving antenna.
z
Increase the separation between the equipment and receiver.
z
Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
z
Consult the dealer for technical assistance.
Precautions
To prevent fire, personal injury, or unit damage, please observe the following precautions:
z
Do not attempt to adjust this unit unless instructed to do so by this manual.
z
Do not expose the unit to direct sunlight or place the unit close to heating appliances.
z
Do not place the unit in excessively dusty, humid, wet areas.
z
We are not responsible for any damages to the radio equipment due to improper settings or interface.
z
We are not responsible for any loss of communications due to an unexpected change of propagation or
operating environment.
4
Table of Contents
Page
Supplied Accessories ----------------------------------------------------------- 5
Controls and functions --------------------------------------------------------- 5
Front Panel ------------------------------------------------------------------- 5
Rear Panel -------------------------------------------------------------------- 8
Top Panel ----------------------------------------------------------------------- 12
Internal View ------------------------------------------------------------------ 12
Bottom View ------------------------------------------------------------------ 14
Interfacing the ARD9800 ------------------------------------------------------ 15
Connection to a Radio ----------------------------------------------------- 15
Connection to a Microphone -------------------------------------------- 16
Connection to a PC -------------------------------------------------------- 16
Connection to a Power supply ----------------------------------------- 17
Connection to an External speaker ---------------------------------- 17
Level Adjustment ---------------------------------------------------------------- 17
Microphone level ------------------------------------------------------------ 17
Radio Input level ------------------------------------------------------------- 18
Microphone Balance ------------------------------------------------------- 18
Operation ----------------------------------------------------------------------------- 19
Voice Communication ----------------------------------------------------- 19
Digital Voice Communication ----------------------------------- 19
Analog Voice Communication --------------------------------- 19
Data Communication ------------------------------------------------------ 19
Receive ------------------------------------------------------------------ 19
Transmit ------------------------------------------------------------------ 20
Digital Image Communication ------------------------------------------ 21
Receive ------------------------------------------------------------------ 21
Transmit ----------------------------------------------------------------- 21
Specifications ------------------------------------------------------------------------ 22
Control Commands -------------------------------------------------------------- 23
Limited Warranty ------------------------------------------------------------------ 31
5
Supplied Accessories
The following items are provided in the box:
Accessory Quantity
----------------------------------------------------------------
Microphone 1
PC interface cable 1
Speaker Cable 1
DC Power cable 1
Microphone Connector 1
Instruction manual (this booklet) 1
Controls and functions
Front Panel
a. Power on/off switch
b. TX switch
(Note: This function is available only when an optional memory module has been installed.)
Press this switch to capture and send an image.
W hen the Video Through Function is activated (AVT command is ON), pressing this
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6
switch will enable output of the video signal connected to the Video Input to also be sent
to the video output port, so that you can monitor the video image. Press this switch again
to capture and send the image through the radio equipment.
W hen the Video Through Function is de-activated (AVT command is OFF), pressing
this switch will automatically capture the video image and then transmit it through the
radio equipment.
Refer to : Operation -- Digital Image Communication at page 21 for details.
c. 2 color LED
Steady red display ---- The unit is in the transmit mode
Flashing red -- Flashes red while the header information is being sent when in the digital
communication mode. (approximately one second).
Lit in green -- The unit is in the receive mode
Not lit --------- The unit is in the standby receive mode or in the analog voice receive mode.
d. Status LED (STA LED)
In the data communication mode, lit while unsent data is in the memory. It is lit when the
Video Through Function is activated (Digital Image Communication mode). W hen the
Video Through Function is de-activated (AVT command is OFF), this LED will not be lit.
e. Speaker volume adjustment
Adjustment for the internal speaker output level or the external speaker output level when it
is connected.
f. Operation Mode LED (3 colors)
Indicates the current operation mode:
Green display ----- Digital Voice mode
Red display ------- Analog Voice mode
Orange display -- Data Communication mode
Not lit ---------------- Digital Image Communication mode
g. Microphone Input Level Adjustment
Adjustment for microphone input level
7
(This adjustment may be required when using a microphone other than the one that came
with your AR9800.)
Refer to Microphone Level Adjustment at page 17 for details.
In case of unbalanced levels between analog voice and digital voice, perform a
microphone balance adjustment as described below.
Microphone Balance
1. At first, set the proper microphone level in the digital voice mode.
2. Turn off the power to the ARD9800. Press and hold the TX switch then turn the
power back on. The Mode LED should flash in orange color indicating the
ARD9800 is in the microphone balance adjustment mode.
3. Holding the PTT switch, and while speaking into the microphone, adjust the
microphone level.
4. After the adjustment is completed, push the TX switch to save the new setting. The
STALED will light to indicate the setting process is completed.
5. To complete the operation, turn the power of the ARD9800 off, and turn back it on.
h. Overload indicator
Lit when the microphone input is overloaded (too high).
A proper microphone input level will cause the LED to flash from time to time when
speaking into the microphone at a normal level.
The microphone level can be adjusted with the microphone level controller.
Refer to Microphone Level Adjustment at page 17 for details.
i. Mode switch
Select the Digital voice mode (10101) or the Analog voice mode (~)
W hen the Analog voice mode (~) is selected, ordinary analog voice communications will
be made. In the receive mode, however, the ARD9800 will automatically detect the mode
of the incoming signal and decode signals accordingly. The LED indicates the respective
operation mode.
8
j. Microphone connector
Connect the supplied microphone to this connector.
Below are the pin assignments of the connector.
1. Speaker output -- Monitor output signal is present at this pin.
2. BIAS -- Power source for an electret condenser type of microphone.
5V DC through 2.2Kohm of resistor
3. GND -- Chassis ground
4. TX
Taking this pin to the ground will enable the transmit mode.
(Same operation as the TX switch on the front panel.)
5. D/A
Taking this pin to the ground will force the unit to the digital voice communication
mode. W hen 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
9
k. Communication Connector (mini DIN 8 pin)
A communication connector for PC (RS-232C)
Pin Number Signal Signal Direction
1 TX ARD9800