HF modem P4dragon DR-7800 is the uncompromising advancement of the legendary PTC-II which is designed for professional deployment and for the ambitious amateur radio operator. DR-7800 is software-compatible with PTC-II which means that one may continue to use the existing software, such as AirMail, RMS Express, Alpha, etc., for PACTOR as well. Due to the pin compatibility of the radio equipment ports a change-over from the well-tried PTC-II technology to the innovative P4dragon technology is made convenient: re-plug, switch on and enjoy the higher speed and robustness with the PACTOR connectivity!

The elegant design and the excellently readable and informative OLED display including the simple upgrade facility (updates free of charge!) round off the concept of the absolutely latest shortwave modem from the house of SCS.


DR-7800 can be ideally used for HF email, for example, over the Winlink network. Externally, it stands out due to its high-resolution OLED display which, among other things, can be configured for waterfall and spectral views. Thanks to its reliability and low power consumption of 3 W, the new modem is also well-suited for distress radio communications and other applications under severe conditions.


Operating modes:

  • PACTOR-4, PACTOR-3, PACTOR-2, PACTOR-1
  • Weather-FAX (Receive)
  • RTTY
  • NAVTEX (Receive)
  • Packet Radio 1k2, Packet Radio 9k6, Robust PR
  • PSK31
  • and more!


More features of the DR-7800 Pactor controller:

  • GPS decoder
  • Processor: Quadcore-DSP by Freescale, 6400 MIPS, 64 Bit
  • Connections: USB, (opt.: Bluetooth, Ethernet)
  • GPS antenna (RS232- and TTL)
  • 2 x radio AF/PTT (Main, Aux, confi gurable - PTC-II compatible or symmetrical, opt. dual-port operation)
  • 1 x radio-remote control (all usual transceiver types)
  • microphone input
  • loudspeaker output (2 W)
  • Audio level / imp.: Input: max 5.5V p-p, 15kΩ, output: max. 9V p-p, 300Ω
  • Display: 256 x 64 pixel OLED, blue, high contrast, excellent readability, no viewing angle problems, display of spectrum and much more
  • Power supply: 10 - 26 V 400 mA (max at 10 V input)
  • Weight / size: 770 g, 172 x 43 x 205 mm (width, height and depth)



Comes complete with cables for your transceiver just mention your radio with your order please.


Optionally the DR-7800 can be equipped with a Bluetooth or LAN interface.


SCS P4dragon DR-7800 Pactor 4 modem complete with radio cables

  • Brands SCS
  • Product Code: DR-7800
  • Availability: In Stock
  • £1,359.00

  • Ex Tax: £1,132.50

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