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Главная » 2018 » Июнь » 6 » VisAir HF transceiver DDC/DUC 100W ATU
VisAir HF transceiver DDC/DUC 100W ATU

VisAir HF transceiver DDC/DUC 100W ATU

Visair is a SDR DDC/DUC transceiver with direct signal digitization and operates in the frequency range of the amateur HF bands, with two independent receivers with an overview up to 192 kHz. A 7″ large color display with a resolution of 800×400 pixels allows you to comfortably control the transceiver and monitor the air.

The transceiver has a 100 watt power amplifier, as well as an automatic antenna tuner.

The built-in power supply allows the transceiver to be powered from AC ~ 220V, and in the field, from a 13.8V battery.

VisAir HF SDR Transceiver
VisAir HF SDR Transceiver

The VisAir HF transceiver DDC/DUC 100W ATU is the result of a cooperation of RX9CIM George and R6DAN Vladimir who developer repectively the DSP module and the controller.

The VisAir HF SDR can be purchased in a Kit format directly from the rus-sdr.ru web site

A Modern HF transceiver

Microprocessor-based data processing.

The distinctive feature of the transceiver is the modern data processing in DSP and the output of the information to a large 7″ Touch Color TFT LCD display with a resolution of 800 x 480 with Capacitive touch screen.

  • Minimum signal delay for reception and transmission.
  • High-quality SSB signal formation.
  • The user has the ability to adjust a large number of transceiver parameters.
visair panel
visair panel

High-quality and Informative spectrum analyzer and waterfall

To date, Visair among products of its class, is the only transceiver having a such high-quality spectrum analyzer with waterfall.

The output of its Spectrum analyzer is performed in real time. That allows you to get full visual information about the corespondents in the analyzer’s bandwidth.

The Spectrum Analyzer has a configurable depth of the visible area and is in the range of -150 db to 10 db, which allows the operator to adjust the Spectrum analyzer to the current reception conditions.

visair inside

visair rear
VusAir Rear

Second Survey receiver

An additional receiver operating in the band from 0.01 to 60 MHz, allows you to quickly monitor other bands and stations in the band of the first receiver. Independent settings for the viewband, the type of modulation and the width of the filter for the second receiver.

visair compact sdr
visair compact sdr

Audio Player

Built-in audio player, allows you to record the received stations and, if necessary, make a signal demodulation to the correspondent.
Signal Predication

The signal pre-emphasis function in the power amplifier reduces the intermodulation distortion during transmission in SSB and digital communication modes.

Built-in automatic antenna tuner and power supply

Built-in antenna tuner and power supply. will allow to use the transceiver both in stationary conditions and in the field.


  • The range of received MHz is 0.01 – 60 and transmitted frequencies, MHz 1 – 60
  • Sensitivity, μV 0.1 MDS (500 Hz) -126 dBm
  • The maximum output power of the transmitter, W 100 (at 50 MHz ~ 50 W)
  • IMD3 up to 40 dBm with signal pre-emphasis included
  • Built-in automatic antenna tuner
  • Dynamic range for blocking in the HF range, dB ~ 120
  • Dynamic range by IMD3, dB ~ 90
  • The range of supply voltages, ~ 198 … 240 V 50 Hz (from the AC mains)
  • The range of supply voltages, DC 12 … 14 V (battery)
  • The maximum current consumption, A 1.5 (from the AC mains)
  • Maximum current consumption, A 20 (from the battery)
  • Clock frequency RF A / D converter, MHz 122
  • The resolution of the RF A / D converter, bit 14
  • Types of radiation SSB, CW, AM and FM, digital views via computer
  • USB audio input / output. 24 kHz 16 bit
  • Panorama bandwidth, 12, 24, 48, 96, 192 kHz
  • Second survey receiver, MHz 0.01 – 60
  • Number of antenna inputs 2 pcs.
  • Dimensions of the device, mm 300 (controls) х260х130 ГхШхВ
  • Weight, kg 7



DUC stands for Digital Up Conversion and DDC stands for Digital Down Conversion. Both of these modules are used in Software Defined Radio based systems. Info via RFWireless

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