
The SCS PXdragon DR-9400 is a modern, high-performance PACTOR modem for reliable data links in amateur radio. It supports PACTOR-1/-2/-3/-4, Packet Radio (1k2 AFSK / 9k6 G3RUH) as well as Robust Packet Radio (RPR), and adds useful receive modes such as weather-fax (RX) and RTTY (RX). It is suitable for both fixed and portable stations where stable, efficient data transfer over HF or VHF is required.
Powered by a quad-core ARM v8 @ 1.8 GHz running real-time Linux, the DR-9400 processes signals precisely and with low latency. A 1-ppm TCXO ensures excellent frequency stability; 10 bi-color status LEDs, a power switch, and a reset button simplify operation in the shack and in the field.
Applications
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Data over HF/VHF: Connection-oriented links for messages, small files, and telemetry—robust even under challenging conditions (PACTOR-1/-2/-3/-4).
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Packet Radio: 1k2 AFSK and 9k6 G3RUH for classic packet networks, plus Robust Packet Radio (RPR) for greater range and reliability.
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APRS: Automatic beaconing for position and status reports.
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Signal reception & analysis: Weather-fax (RX), RTTY (RX), and PACTOR Monitor for monitoring and analysis.
Highlights
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Wide mode coverage: PACTOR-1/-2/-3/-4, Packet Radio (1k2 AFSK / 9k6 G3RUH), Robust Packet Radio (RPR), APRS beaconing, weather-fax (RX), RTTY (RX), PACTOR Monitor.
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Flexible interfaces: USB-C and LAN as standard; Wi-Fi/Bluetooth optional via USB dongle (license required).
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Generous audio ranges: Input impedance 44 kΩ, input level 30 mV–6.6 V p-p; output impedance 1 kΩ, output level 30 mV–5.0 V p-p—compatible with many transceivers.
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GPS integration: Galvanically isolated, balanced GPS input (TTL 3.3/5 V and V.28/RS-232), NMEA decoder, switchable signal polarity; USB GPS (“GPS mouse”) supported.
Technical Data (excerpt)
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Modes: PACTOR-1/-2/-3/-4, PACTOR Monitor, Packet Radio (9k6 G3RUH / 1k2 AFSK), Robust Packet Radio (RPR), APRS beaconing, weather-fax (RX), RTTY (RX).
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Processor & OS: ARM v8 quad-core @ 1.8 GHz; Buildroot Linux (real-time).
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Storage: SD card (permanent).
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Interfaces: USB-C, LAN; Wi-Fi/Bluetooth optional (USB dongle + license).
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GPS interface: Galvanically isolated; TTL (3.3/5 V) & V.28/RS-232; NMEA decoder; software-switchable polarity; USB GPS supported.
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Transceiver audio: Input impedance 44 kΩ, 30 mV–6.6 V p-p; output impedance 1 kΩ, 30 mV–5.0 V p-p.
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Timebase: TCXO, accuracy 1 ppm.
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Indicators/controls: 10 bi-color LEDs (green/red), power switch, reset button.
Estimate Price: €1,599.00
