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Table of Contents

Accessories and Options

Specifications

Panel and Interface

     Front panel

     Key function

     Indicator Light

     Main Interface

     Rear panel interface

     Interface definition

Radio Setting and Operation

  

     Turn on/off QR20

     Frequency band selection

     Frequency selection 

     Mode selection 

     Transmit power selection

     Receive volume, MIC gain

     Hand microphone selection 

     Channel saving

     Band selection operation

     Different frequency operation

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Visit Radioddity.com For Downloads And Help

Summary of Contents for QR20

Page 1: ...Full Mode SDR Transceiver V1 0 May 2021 User Manual ...

Page 2: ... any reason Do not use any transceivers with a damaged antenna If a damaged antenna comes into contact with your skin a minor burn can result Turn off your transceiver prior when entering any area with explosive and flammable materials Do not charge your transceiver in the area with explosive and flammable materials To avoid electromagnetic interference and or compatibility conflicts please turn o...

Page 3: ...Broadcast reception built in telegraph automatic key automatic key point ratio adjustment built in CTCSS analog tone automatic shutdown function APO transmission timeout function TOT connection with computer and computer aided control function copy function etc In addition the QR20 has several modules to customize more functions Features 1 Real time spectrum 2 Waterfall chart 3 Supports FT8 mode 4...

Page 4: ... definition Radio Setting and Operation Turn on off QR20 Frequency band selection Frequency selection Mode selection Transmit power selection Receive volume MIC gain Hand microphone selection Channel saving Band selection operation Different frequency operation 01 01 03 03 03 04 05 06 07 08 08 08 08 09 09 09 09 09 10 10 Visit Radioddity com For Downloads And Help ...

Page 5: ...all display setting Spectrum parameter display setting Digital filter operation Application Menu Operation CAT Control Receiving Operation Transmitting Operation Locked by Default SSB communication CW communication FM communication Repeater operation AM communication Data communication RTTY QR20 Firmware Upgrade 11 11 11 12 12 12 13 13 13 14 14 14 16 16 18 18 18 18 19 20 20 21 Visit Radioddity com...

Page 6: ...450MHZ HF 6m SSB 1 20W CW 0 1 20W FM 0 1 20W AM 1 5W VHF SSB CW FM 0 5 10W UHF SSB CW FM 0 5 5W TX 13 8V 6A 20W RX 13 8V 0 25A typical value 0 5A highest brightness audio peak 50db 1 8 54MHZ 50db 144 146MHZ 60db 430 440MHZ 60db 99 channels Transmitter Architecture Transmission Mode Frequency Resolution Transmit Frequency Range 1 Output Power Power Current Carrier Suppression Spurious Suppression C...

Page 7: ...8V full power output 18 32V transmit power limit M Sensitivity 3 Intermediate Frequency Suppression Image Suppression Audio Output Power 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 FM BW 15kHz 12dB S N 0 5uV 28 0 29 7MHZ 0 25uV 50 54MHZ 0 3uV 144 500MHZ 0 5uV 430 440MHZ 70db 80db 2W 10 distortion rate 4Ω Load 3KHZ Spectral Ban...

Page 8: ...nd selection Different frequency on different frequency off Volume MIC gain MIC audio compression ground bass treble Radio frequency gain Intermediate frequency gain AGC SQL ATT RIT receiving frequency offset IT transmitting frequency offset Mode setting Antenna tuner on and off A B Band NB or NR options Long Key Function Power on power off CW setting Tone setting Channel VFO mode selection USB da...

Page 9: ...Key Function NR NB PEAK threshold setting Transmitting power setting Digital filter selection Left selection or decrement operation Right selection or increment value Up operation Down operation Confirm Long Key Function Turn off NR or NB High low power switching Spectrum bandwidth setting spectrum reference level setting spectrum refresh rate setting Fast frequency adding Fast frequency reduction...

Page 10: ...ansmitting power meter when transmitting 8 Transmitting frequency 9 Receiving frequency 10 Voltage display 11 Tune enable display 12 Power display 13 Digital compass 14 LoRa display 15 GPS display 16 Bluetooth display 17 Time display 18 Digital filter bandwidth 19 Spectrum bandwidth 20 21 NR NB display 22 RIT XIT frequency offset 6 5 4 3 2 7 8 9 10 11 12 13 14 15 16 17 18 19 1 20 21 22 ...

Page 11: ...onnect the USB cable to the computer and can output audio digital and IQ signals 4 RS232 serial interface 5 Electric key interface This interface is a 3 5mm three core interface used to connect electronic automatic key control or ordinary hand keys 6 Network interface Used for remote control and remote firmware update 7 GPS antenna port Connected to an active GPS antenna 8 PTT control output Used ...

Page 12: ...Visit Radioddity com For Downloads And Help 07 Interface Definition Key Power Audio output headphone interface Hand microphone ...

Page 13: ... data status 7 050Mhz LSB before This function is great for remote operation Turn on off QR20 1 The frequency range of QR20 is very wide Short press BAND to pop up the frequency band menu 2 Short press the direction keys to select short press MENU to confirm the frequency band Frequency band selection 1 Short press the left and right direction keys to select the cursor position in image short pres...

Page 14: ...bands support LSB USB CW FM Short press MODE button to select them Note that switch between LSB USB CW CWR and WFM NFM need to long press MODE button Mode selection 1 Short press PA to enter the transmit power adjustment use the up and down direction keys to adjust the value 2 Long press PA to quickly select the 5W 20W power each selection can be fine tuned by the up and down direction keys Transm...

Page 15: ...e there is a RENAME icon Long press the right direction key to turn the RENAME to red short press MENU to pop up the input box 3 1 Input method currently only supports the input of letters and numbers 3 2 Long press the number 1 key to switch the input of uppercase letters lowercase letters numbers and punctuations and short press the MODE button to delete 3 3 When in punctuation short press the i...

Page 16: ... USB when using digital modes like FT8 HRD N1MM LOG32 RTTY SDR Select SDR when using software like SDR HDSDR AF audio setting Short press the AF button to enter the AF interface use the left and right direction keys to select the setting item and use the up and down buttons to set the value RFG RF gain IFG IF gain AGC Automatic gain adjustment speed SQL Squelch level FM AMP Pre amplification RF se...

Page 17: ...rectly observe the SWR value of the antenna standing wave and adjust your antenna feed system Short press again to exit Transceiver frequency offset setting Long press R X to open the interface for sending and receiving frequency offset setting long press again to exit Short press to select the receiving frequency offset RIT short press again to set the transmitting frequency offset XIT Use the le...

Page 18: ...short press again to switch NR NB normally select NR Short press BW to turn on the digital filter green display in image short press the left and right direction keys to decrease the bandwidth to 4 8K When the NR is working long press DSP to turn off NR NB Spectrum and waterfall display setting Long press the NR key to select and switch the display way amount Waterfall Only Spectrum Only Both Wate...

Page 19: ...m parameter display setting Long press BW button to set spectrum bandwidth reference level refresh rate up and down direction buttons to select setting items left and right direction keys to set value Digital filter operation Short press BW key to select digital filter green display in image left or right direction key to select filter bandwidth short press BW key to ensure filter bandwidth green ...

Page 20: ... Select BAND to select different bands Select Maker then use the left and right keys to learn the band frequency s standing wave value Select START to scan the antenna standing wave value 1 Radio operation Use the left and right buttons to search for the channel up and down buttons to increase or decrease the volume Long press to exit the radio function 2 GPS operation DIR optional module Directly...

Page 21: ...dditional operator is needed The CAT protocol is compatible with FT 817 just choose the FT 817 radio model during CAT control For CAT control a TYPE C USB cable connected to a PC would be enough Note the serial port driver is only suitable for WINDOWS 10 system The USB cable also integrates the sound card function One USB cable realizes CAT control and data transmission Due to the wide variety of ...

Page 22: ... 8K the noise will be greatly suppressed At this time you can also adjust the combination of the previous RFG and IFG to achieve the best reception effect Through the above settings you have mastered the advanced reception settings of QR20 congratulations 3 1 RFG Radio frequency gain 3 2 IFG Intermediate frequency gain Through the combination of RFG and IFG the receiver will achieve the highest se...

Page 23: ... LSB side Long press BAND key to enter CW setting Up and down arrow keys on keyboard Select an option and use the left and right arrow keys to adjust the settings within the option 3 1 KEY MODE left and right direction key selection content manual electric key automatic electric key 3 2 KEY SPEED automatic key code rate the greater is the value the faster is the speed 3 3 TX RX CW transmission and...

Page 24: ...frequency The upper row of frequencies is the receiving frequency press the left and right direction keys to select the frequency press the up and down direction keys to increase or decrease the frequency or directly enter the numeric keyboard 14567000 The lower row of frequencies is displayed as the transmission frequency directly enter 14413000 on the keyboard Press the A B key to switch between...

Page 25: ...ia s USB cable 2 Long press the RF key to enter the USB sound card data output format selection interface use the up and down keys to select the output mode Press and hold again to exit Select USB digital mode 3 At this time you can search on the frequency If there is RTTY signal the relevant computer software can decode Data communication RTTY 1 Press the MODE key to select the AM mode and set th...

Page 26: ...wise please check whether the computer is properly connected to the QR20 4 Select the firmware file dfu 5 Hold down the BAND and power keys click Upgrade button At this point the upgrade begins wait for the progress bar to finish release the button and restart the computer 6 If you let go of the button or power off halfway you only need to restart the operation Copyright Statement All Rights Reser...

Page 27: ...Thank You for Shopping at Radioddity FIND TUTORIALS SUPPORT AND MORE https www radioddity com https www facebook com radioddity https www youtube com c Radioddityradio ...

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