The DR-7800 P4Dragon is optimized to use the data transmission mode PACTOR 4.

The DR-7800 and PACTOR 4 enable unexcelled data links via shortwave from any point on earth.

P4Dragon modems are software compatible with previous PTC-II series modems, so existing PACTOR software (AirMail, RMS Express, Alpha etc) can continue to be used.

The elegant design, bright and informative OLED display, and the easy upgrade possibilities (always free updates!) round up the concept of the most modern shortwave modem on the planet, From SCS - the creators of PACTOR.

Data throughput: Maximum 5512 bps without compression. Approx 10500 bps with PMC using text. This is reached with approx +16 dB @ 4 khz in an AWGN channel. Under the usual channel conditions 1.5 – 3 times faster than PACTOR-3

Compatibility: Strictly backward compatible to PACTOR-1/-2/-3. Automatic negotiation during link setup. Noticeably improved reception with PACTOR-2 and PACTOR-3

ARQ protocol: Synchronized, similar to PACTOR-3, except 10 instead of 6 speed levels (“Waveforms”) and faster switching. Bandwidth always smaller than 2400 Hz.

Channel equalization: Iterative adaptive equalizer for the coherent speed levels (5 – 10), RAKE receiver with maximum ratio combination for the splayed speed levels (2-4). Real-time multitasking operating system.

Operating modes: PACTOR-4, PACTOR-3, PACTOR-2, PACTOR-1, weather-FAX (Receive), GPS decoder.

Processor: Freescale Quad core DSP, 6400 MIPS, 64 Bit Connections: USB, (Opt.: Bluetooth, Ethernet, USB-master), GPS (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, loudspeakeroutput (2W)

Audio level / imp.: Input: max 5.5 V p-p, 15KΩ output: max. 9 V 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 – 30 V 400 mA (max at 10 V input)

DR-7800 P4 DRAGON

SKU: 7800
$1,849.00Price
    WHAT'S NEW?

    On August 8th, 1988, Dave Carothers, founder of Royal Communications International, opened for business.  Over the past 30 years RCI has grown to become a recognized industry leader in the design and supply of land-mobile and long range two-way HF/SSB radio communication systems to customers around the world. We have worked with most U.S. Federal Government Agencies and have teamed up with several U.S. Prime Contractors.

     

    RCI's core expertise is centered on the MICOM series of HF transceivers.

     

    At Royal Communications International, Inc., our mission is to ensure that our customers receive prompt service and sound technical advice for their long range radio systems.

    The Micom 4 is in development.  Expected completion date is mid 2020.  

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    LAST EVENT

    During the summer June-July 2017, pilot Brian Lloyd commenced his round-the-world flight to commemorate Amelia Earhart’s route eighty years ago in 1937. The two month flight followed Earhart’s historic equatorial route. Royal Communications International, Inc. was honored to support Brian throughout his expedition.

     

    “I chose the Micom3T transceiver for my historic recreation of Amelia Earhart's flight due to its robust construction and outstanding reputation for reliability in a harsh environment. While the control head is mounted in the cabin and lives in a more benign environment, the receiver/transmitter unit resides in an unheated and unpressurized avionics bay where the temperature may vary from +45C to -20C and the altitude may top 24,000 feet. In spite of this harsh environment the Micom3T performed well. 

     

    But even the best equipment can fail and I did experience an intermittent failure of the receiver/transmitter unit. A single call to Royal Communications had a replacement unit on its way to me on the other side of the world in a day. Clearly the emphasis was to get my communications back up and running reliably as quickly as possible. I am extremely pleased with the level of support I received. The replacement unit operated and continues to operate reliably.

     

    I recommend Royal Communications and Micom products without any reservation. They provide excellent service, great support, and reliable products. Thanks Royal!” - Brian Lloyd

    3135 Coachman Court, Oceanside, CA 92056

    Tel:  760_529_9518

    Fax: 760_529_9568

    Email: sales@micomhf.com