® Digital Voice Modem ARD9000MK2 Instruction Manual AOR, LTD.
Thank you for purchasing the AOR ARD9000MK2 Digital Voice Modem. All over the world, amateur radio operators have been discovering how much fun it is to work HF without background noise. AOR set the pace in this breakthrough technology with its ARD9800. In response to worldwide demand, AOR had developed the ARD9000 which makes digital voice communications even more affordable. Now, we have developed the new ARD9000MK2. AOR’s digital voice technology delivers audio quality you have to hear to believe.
Features: z No transceiver modifications needed. The ARD9000MK2 uses the same audio frequencies (300Hz~2500Hz) as microphone audio to modulate the voice signal. This allows you to use an analog radio as a digital voice radio. z Works on Single Side Band (SSB) mode. The Automatic frequency clarifier function adjusts frequency drift automatically in the SSB mode. (Approximately up to +/- 125Hz). Utilizes the OFDM (Multi Carrier Modulation) circuit that is effective against Multi-path or Selective Fading.
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.
Table of Contents Page Supplied & optional accessories ---------------------------------------------------------- 5 Magnetic mount ------------------------------------------------------------------------------- 5 Controls and functions ------------------------------------------------------------------------ 6 Front panel ------------------------------------------------------------------------------------ 6 Microphone connector ---------------------------------------------------------------------- 6 Overload
Supplied Accessories The following items are provided in the package: Accessory Speaker Microphone Speaker Cable DC Power cable 8 pin metal plug (for radio output) Instruction manual (this booklet) Magnetic mount base (CR25) with screw (M3) Quantity 1 1 1 1 1 1 Optional Accessories A pre-wired microphone interface cable for most popular transceivers D-6MY for YAESU® transceiver with 6 pin modular microphone connector D-8MY for YAESU® transceiver with 8 pin modular microphone connector D-8MI for ICOM® tran
Controls and Functions Front Panel (1) Microphone Connector (SP/MIC) Connect the supplied speaker-microphone to this connector. Speaker audio is provided by the speaker-microphone. If you wish to use your own microphone rather than the supplied speakermicrophone, you may rewire your microphone cable. However, you will need to use your own external speaker connecting to the SP OUT of the rear panel of the ARD9000MK2 as it does not have a built-in internal speaker.
when speaking into the microphone at a normal voice level. The microphone level can be changed by adjusting the microphone level controller. Refer to the Presetting - Microphone Level chapter for details.
PTT->B Pushing the PTT button half way through toggles the analog/digital mode, continue and fully press the PTT to open the microphone and talk. Voice squelch: Allows you to hear both analog and digital transmissions. All digital: The only audio you will hear is when the ARD9000MK2 detects and decodes a digital transmission. (*): In FM mode, the ARD9000MK2 operates best when your transceiver squelch is fully open.
(2) SPEAKER OUT Connector (3.5 mm mono jack) If you wish to use your own external speaker, connect it to this jack. Once connected, the speaker-microphone’s audio is disabled. (3) SPEAKER IN Connector (3.5 mm mono jack) Connect to the transceiver’s speaker output with the supplied cable. (Input level: 0.5V – 5V p-p, input impedance: 8 Ohms) Do not connect other audio sources like your radio’s ACC-connector or LINE-OUT as those audio levels are insufficient to drive the ARD9000MK2.
Initial Setting Microphone Level The microphone level has been properly adjusted at the factory with the provided speaker-microphone. Therefore, no further adjustment is needed for normal operation. If you wish to use your own microphone rather than the one included, you will need to rewire your microphone cable to match the pins of the ARD9000MK2 and then adjust the microphone level as described in the following steps: 1. Connect your microphone to the Microphone connector on the ARD9000MK2. 2.
3. Press the PTT switch on the supplied speaker-microphone and speak normally into the speaker-microphone. In case the OVERLOAD LED is not lit, it means that the microphone’s “MIC-IN” level has not been set properly. Refer to the previous “Microphone level” section to correct this level first. 4. Adjust microphone gain control on the radio transceiver to suitable level. It is recommended that you adjust the level so that the ALC function is activated.
Installation Connection of the speaker-microphone Connect the supplied speaker-microphone to the SP/MIC connector of the ARD9000MK2. If you wish to use your own microphone or a speaker-microphone, please refer to the wiring diagram shown below. Pin # 1 2 3 4 5 6 7 8 Signal Details Speaker output Speaker output BIAS 5V DC though 2.
Connection to the radio (for microphone output) Connect the RADIO connector and the microphone connector of your transceiver with the prepared microphone interface cable. Please make sure you have the correct wiring to your transceiver as shown below. ARD9000MK2 RADIO Connection to the radio (for speaker input) Connect the SP IN located on the rear panel of the ARD9000MK2 to the speaker output (external speaker) of your transceiver with supplied speaker cable (with 3.5mm mono plug on each end).
We strongly recommend that you use a separate power supply for the ARD9000MK2. Operation After installation and all settings are completed, you are almost ready to operate your ARD9000MK2. Operating hints 1. Try to coordinate your frequencies as closely as possible. There is some small margin for error, but best results are obtained when both transceivers are exactly on the same frequency. 2. Be sure your IF filters are about 3KHz or wider. 3.
OPERATING FREQUENCIES Below please find web sites that are NOT affiliated with AOR. AOR takes no responsibility for their content. http://www.standpipe.com/w2bri/fastmodem/fastmodem.htm http://www.rfelectronics.com/ http://www.melwhitten.com/ Remember, to receive SSB transmissions, you need to set the ARD9000MK2 to SSB mode, and in FM mode to receive FM transmissions. The operation modes can be selected with the MODE SWITCH, and described in the chapter, “Controls and Functions”.
LIMITED WARRANTY AOR USA, Inc. (AOR) warrants its products as described below: AOR will repair or exchange equipment as a result of defects in parts or workmanship for a period of one year from the date of original retail purchase from an authorized AOR dealer. Exclusions The following items are not covered by the AOR limited warranty: 1. Products that are damaged through accident, abuse, misuse, neglect, or user modifications. 2.
Limitations Any and all implied warranties, including those pertaining to merchantability and utility for a specific purpose are limited to the duration of this limited warranty. AOR’s limits on warranty pertain only to the repair or, at its option, replacement of defective products. AOR shall not be liable for any other damages, including consequential, incidental or otherwise, arising from any defect.
AOR, LTD. 2-6-4, Misuji, Taito-Ku Tokyo, 111-0055, Japan http://www.aorja.com AOR USA, INC. 20655 S. Western Ave. Suite 112 Torrance, CA 90501-1800 Copyright © 2006 Phone: 310-787-8615 Fax: 310-787-8619 e-mail: info@aorusa.com URL: http://www.aorusa.
