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Radioddity QR20 SDR Radio | Full Band CW SSB RTTY AM FM DMR | 100kHz to 2GHz | Auto Antenna Tuner | Max 20W [DISCONTINUED]

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SKU: 715-HR-QR20*SEC
  • Normaler Preis €650,53
  • Normaler Preis SAVE €-650,53

Only -5 left in stock

 • Optional modules like GPS, Digital Compass, DMR not included. Will be available in the future.
 • For EU countries, we'll prepare the stock in the future.

WARRANTY NOTE: Radioddity provides a 1-year warranty on the QR20. As usual, if you modify the radio's hardware without the agreement of our support team, the warranty is void.

DISCLAIMER - No License is required to purchase this radio, nor to Monitor (listen) to the many Amateur (Ham) Radio frequencies. However, an FCC License is required to Transmit (Talk) on Amateur Radio Frequencies in the USA. Please visit to learn more.

CLICK HERE to get the user manual & software.
CLICK HERE to get the lastest Firmware Update.

1. Change the firmware upgrade method to U disk upgrade. (BootLoader only need to update once)
2. Solved the crash caused by USBlib library
3. Updated Bluetooth APP control
4. Open the 220M band limit
5. Add Bootloader version display
6. Optimize the effect of antenna tuning
7. Solve the app and CNSDR adaptation problem
8. Add battery status display
9. Fix DMR transceiver switching abnormality

Radioddity QR20 Firmware Upgrade
CLICK HERE to download the firmware. It is a relatively new method for you to update the firmware, please do read through the firmware update instructions before you update the firmware. (If not operated properly it may lead to damage to the radio) Also, please do contact us if you have any confusion with the instructions before you operate. Here is the released note for your reference: 1、Change the firmware upgrade method to U disk upgrade. (BootLoader only need to update once) 2、Solved the crash caused by USBlib library 3、Updated Bluetooth APP control 4、Open 220M band limit 5、Add Bootloader version display 6、Optimize the effect of antenna tuning 7、Solve the app and CNSDR adaptation problem 8、Add battery status display 9、Fix DMR transceiver switching abnormality All the needed file has been attached. (the original firmware file also be included and named as FW-old.bin)
What is HF radio?
  What is HF radio? Known as the decameter band or decameter wave, high frequency (HF) is the ITU designation[1] for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz). The HF band is a major part of the shortwave band of frequencies, so communication at these frequencies is often called shortwave radio. Because radio waves in this band can be reflected back to Earth by the ionosphere layer in the atmosphere – a method known as "skip" or "skywave" propagation – these frequencies are suitable for long-distance communication across intercontinental distances. The band is used by international shortwave broadcasting stations (2.310 - 25.820 MHz), aviation communication, government time stations, weather stations, amateur radio and citizens band services, among other uses. Different from VHF (Very High Frequency - 30MHz-300MHz) and UHF (Ultra High Frequency - 300MHz-3GHz) radios, HF radios cover far greater distances thanks to ionospheric refraction – but the HF radio signals are prone to distortion by atmospheric conditions such as geomagnetic storms or solar flares that radio users cannot control. HF communications are best suited for long distance communication between ground operators and base stations. Some HF radios normally cover HF band only, like the Xiegu G106, Xiegu G90, Xiegu X6100.   What about VHF/UHF radios? VHF radio waves operate in a band between 30-300 megahertz, while UHF radio signals are propagated within 300 megahertz and 3 gigahertz. These radio waves travel over line of sight, making them ideal for local communications over a few kilometres. Indeed, VHF radio waves normally travel within line of sight along the Earth’s surface. Common uses for VHF are FM radio broadcasting, television broadcasting, two way land mobile radio systems (emergency, business, private use and military), long range data communication up to several tens of kilometres with radio modems, amateur radio, and marine communications. Air traffic control communications and air navigation systems (e.g. VOR, DME & ILS) work at distances of 100 kilometres or more to aircraft at cruising altitude. VHF was used for analog television stations in the US, and continues to be used for digital television. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. One of the biggest pros of UHF radios is that they do a much better job of penetrating barriers in urban locations, like concrete, steel, and wood. So this kind of radio is best suited for use indoors, including buildings with multiple floors, in industries such as manufacturing, distribution, education, retail, hospitality, and healthcare. They also work well for businesses that function in both indoor and outdoor settings, where there are a lot of surrounding buildings. Nowadays, some radios are capable of transmitting on both VHF & UHF bands, like Radioddity GS-5B, making it meet more outdoor and indoor activities requirements. There are also some dual-band radios featuring 10W high power like Radioddity GA-510, supporting a longer range of communication.   US Amateur Radio Bands Reference - SOUCE    
Supports SSB, CW, RTTY, AM, DMR
Full-band Full-Mode Operation
Dual-fan Cooling Design
Built-in Auto Antenna Tuner
Built-in Electronic Key Controller
Extra Functions Available
Built-in Battery with Two Way to Recharge
Built-in 3.5Ah Rechargeable Battery
PC Software & Smartphone APP Control
Real-time Spectrum & Waterfall Display
Built-in Sound Card with IQ and Sudio Output
Radioddity QR20 is an ultra-portable full-frequency full-mode SDR radio supporting real-time spectrum & waterfall display.


The QR20 supports SSB, CW, RTTY, AM, DMR (optional) full-mode operation, with a reception from 100kHz to 2GHz as well as transmit from 160m to 70cm.

Built-in Battery with Two Way to Recharge

Comes with a built-in 3.5Ah rechargeable battery, QR20 provides you with 3-4 hours of outdoor operating time. You can charge it via a USB type-C cable.

PC Software & Smartphone APP Control

Want to wirelessly operate your radio? In addition to normal PC software, the QR20 can be easily controlled by custom phone APP through Bluetooth. Android & iOS available.

Built-in Auto Antenna Tuner

The QR20 is equipped with a 160-6 meters high-speed automatic antenna tuner. Tune your antenna directly so that its impedance matches the transceiver and reduces SWR.

Extra Functions Available

You can customize the QR20 with optional modules that add functions like GPS, digital compass and DMR mode. Note that the modules are not included.

Built-in Sound Card with IQ and Audio Output

Dual-fan Cooling Design

Automatically adjust speed from 2000 to 8000 RPM according to different working conditions to achieve the auto temperature control function.

What's More

  • Come with protective carrying case
  • Real-time spectrum & waterfall display
  • Supports FT8 mode
  • DSP digital noise reduction
  • IF width and IF shift hardware
  • Built-in electronic key controller
  • Double conversion circuit structure
  • IF IQ signal output available
  • image


  • Architecture: SDR
  • Operating Mode: DMR (optional), SSB, CW, RTTY, AM
  • Frequency Resolution: 1Hz
  • Transmit Frequency Range:1.800—2.000, 3.500—4.000, 5.351.5—5.366.5, 7.000— 7.300, 10.100—10.150, 14.000—14.350, 18.068— 18.168, 21—21.450, 24.890—24.990, 27, 28—29.7, 50—54, 134—170, 400—450MHZ
  • Reception Frequency Range: 100kHz—2GHz
  • Output Power:HF + 6m: SSB: (1-20W) CW: (0.1-20W)
    AM: (1-5W)
    VHF: SSB / CW / DMR (0.5-10W)
    UHF: SSB / CW / DMR (0.5-5W)
  • Power Current:TX: 13.8V-6A (20W)
    RX: 13.8V-0.25A typical value, 0.5A (highest brightness, audio peak)

    What’s in the box?

    • 1 x QR20 Radio
    • 1 x External Wired Speaker Mic
    • 1 x DC Power Cable
    • 1 x USB Type-C Power & Data Cable
    • 1 x Protective Carrying Case


      Transmitter Parameters
    • Transmitter Architecture SDR
    • Transmission mode Transmission mode DMR(optional), SSB, CW, RTTY, AM
    • Frequency Resolution 1Hz
    • Transmit Frequency Range*1 1.800—2.000, 3.500—4.000, 5.351.5—5.366.5, 7.000— 7.300, 10.100—10.150, 14.000—14.350, 18.068— 18.168, 21—21.450, 24.890—24.990, 27, 28—29.7, 50—54, 134—170, 400—450MHZ
    • Output Power HF + 6m: SSB: (1-20W)
      CW: (0.1-20W)
      AM: (1-5W)
      VHF: SSB / CW / DMR (0.5-10W) 
      UHF: SSB / CW / DMR (0.5-5W)
    • Power Current TX: 13.8V-6A (20W)
      RX: 13.8V-0.25A typical value, 0.5A (highest brightness, audio peak)
    • Carrier Suppression <50db
    • Spurious Suppression 1.8-54MHZ: ≥50db
      144-146MHZ: ≥60db
      430-440MHZ: ≥60db
    • Channels 99 channels
      Receiver Parameters
    • Receiver Architecture SDR
    • Reception Mode DMR (optional), SSB, CW, RTTY, AM
    • Reception Frequency Range 100kHz—2GHz *2
    • Sensitivity*3 SSB / CW: (BW: 2.4kHz @ 10dB S / N)
      0.18uV (1.8-54MHZ) 
      0.25uV (144-146MHZ)
      0.25uV (430-440MHZ)
      AM: (BW: 6kHz @ 10dB S / N) 
      15uV (0.3-1.8MHZ)
      2uV (1.8-54MHZ)
      2uV (144-146MHZ)
      2uV (430-440MHZ) 
    • Intermediate Frequency Suppression ≥70db
    • Image reject Suppression ≥80db
    • Audio Output Power 2W (10% distortion rate, 4Ω Load, 3KHZ)
    • Tuning frequency Range 1.8—54MHz
    • Tuning Impedance Range 16.7Ω–150Ω Unbalanced (standing wave ratio is better than 1: 3)
    • Tuning Accuracy VSWR: 1: 1.5 or less
    • Tuning Time 2-5S (whole section 10 seconds)
    • Tuning Mode Automatic
    • Spectral Bandwidth 48K radio frequency spectrum FFT
      Conventional Parameters
    • Size 170X120X45mm (excluding projections)
    • Weight <<2KG
    • Voltage Range RX:5-32V
      TX: 5- 12V transmit power limit
      12-18V full power output 
      18-32V transmit power limit
    • Antenna Interface M / PL socket

    Note *1 : Frequency range can vary according to different countries or regions, the actual frequency by local legal provisions.

    Note *2 : Data retention.

    Note *3 : To be calibrated. The final interpretation reserved to manufacturers.