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All over the world, hams 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.
Now, in response to worldwide demand, AOR has developed the ARD9000MK2 which makes digital voice communications even more affordable.
AOR's digital voice technology delivers audio quality you have to hear to believe.
Whether you are working digital voice across state lines or across an ocean, amazing doesn't seem strong enough to describe it.
With an ARD9000MK2, it's easy to convert existing HF analog transceivers to work digital voice with NO transceiver modifications.
The ARD9000MK2 automatically detects a digital signal and decodes it, so you also maintain full analog capabilities. Whether a contact comes in as digital or analog, the ARD9000MK2 can handle it.
Features
No transceiver modifications necessary
Digital voice communications using existing analog transceivers
Amazing Audio Quality
Works on Single Side Band (SSB) mode
Automatic digital receive
Optional interface cables for most popular transceivers
Built-in high grade Vocoder (AMBE)
Built-in FEC error correction
Compact unit. Easy to operate
Utilizes a uniquely designed high performance DSP engine
Uses the established G4GUO open protocol
Specifications
| Modulation method: |
OFDM |
| Band width: |
300 Hz - 2500 Hz, 36 carriers |
| Symbol Rate: |
20 mS (50 baud) |
| Guard interval: |
4mS |
| Tone steps: |
62.5 Hz |
| Modulation method: |
36 carriers: DQPSK (3.6K) |
| AFC: |
+/- 125 Hz |
| Error correction: |
Voice: Golay + Hamming |
| Header: |
1 Sec. 3 tones + BPSK training pattern for synchronization |
| Digital voice: |
AMBE coder, decoder |
| Signal detection: |
Automatic Digital detect, Automatic switching between analog mode and digital mode |
| Power requirements: |
10 ~ 16 V DC, Approximately 100 mA Typ(@ 12 V DC) |
| Dimensions (w, h, d): |
70 x 33 x 98 (mm)
or 2.8 x 1.3 x 3.9 (inches) (Projections excluded.) |
| Connectors: |
Radio: Microphone output (level adjustable)
Speaker input (200 mV ~ 5 V p-p), External Speaker Output
DC Input Connectors
Speaker Microphone (with PTT) |
| Others: |
Force Synchronization Switch |
Specification & price subject to change without notice due to continuous development of the receiver. E & OE.
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