Expert Electronics
2018
SunSDR2 QRP
Hardware Manual
V1.0
Page 1: ...Expert Electronics 2018 SunSDR2 QRP Hardware Manual V1 0 ...
Page 2: ...nical characteristics 5 3 Front and rear panel description 6 4 Connectors pin out 8 4 1 EXT CTRL 8 4 2 MIC1 9 4 3 MIC2 9 4 4 PTT footswitch 10 4 5 CW key 10 5 Local operation 10 6 Remote operation 12 7 Default Settings 12 8 Regulatory requirements 13 ...
Page 3: ...XT CTRL read the Manual learn tables and diagrams of connecting the external devices DO NOT connect a VGA monitor to COM or CTRL port you will damage the transceiver Remember The transistor switches have limitations of supply voltage and current going through them The power swap is forbidden DO NOT use the SunSDR2 QRP in temperatures lower than 0ºC 32ºF and higher than 75ºC 167ºF It is forbidden t...
Page 4: ...4 Expert Electronics 2018 To avoid damage to the Transceiver or causing harmful interference on air it should only be operated by competent HAMs Keep the Transceiver out of the reach of children ...
Page 5: ...ange in HF mode BDR dB 120 RF ADC clock frequency MHz 122 88 RF ADC resolution bit 16 ADC type LTC2165 RF DAC clock frequency MHz 122 88 RF DAC resolution bit 14 Local oscillator s stability ppm 16 MHz 2 5 ppm Recommended power supply V 12 Supply voltage range V 10 15 Maximum consumption current А 3 Built in audio codec resolution bit 24 Dimensions mm inches 185х106х45 6 5 x 6 94 x 1 38 Operating ...
Page 6: ...iver thorough description of the LED operation in Paragraph 8 4 Reset button RST Press this button to reset IP address and UDP ports of the transceiver to the default IP values 192 168 16 225 ports 50001 50002 5 Headphones jack 3 5 Here you may connect headphones with 16 30 Ohm impedance or speakers power output not higher than 150 mW 6 LAN connector LAN connector for connection of the transceiver...
Page 7: ...xternal devices Warning Improper use of this connector can damage transceiver s keys 11 KEY jack 3 5 CW key connector 12 BT Not used DO NOT PRESS 13 PTT jack 3 5 PTT footswitch connector 14 External reference oscillator Input 10 MHz 10 MHz CMOS level input Appropriate Voltage for this input 10 13 dB mW amplitude and 10MHz frequency Warning Improper use or higher voltage may damage the transceiver ...
Page 8: ... filters Pins description of the EXT CTRL connector No Pin Name Description 1 X1 X7 Switches with open collector programmable I O with software 2 X8 Switch with open collector to control an external PA max current 100 mA max voltage 33 V 3 CP Protective diode pin 4 12V Pin for power supply 12V MAX current 0 8 A 2A fused 5 G Ground 6 I1 I2 Button sensors works on the input 7 RA RB RS485 Interface ...
Page 9: ...t microphone which is intended to work with PC JACK 3 5 mm connector pinout 4 3 MIC2 Dynamic microphones are less sensitive to the foreign noises due to the greater focus Dynamic microphones have a higher speech quality and signal noise ratio during operation Pin description and numbering of MIC2 input MD 15 dynamic microphone pin out ...
Page 10: ...o PC CW key connector pinout 5 Local operation Local operation is a standard way to use the SunSDR2 QRP transceiver Make the following connections as described below 1 Connect headphones and microphone to the transceiver 2 Connect an HF antenna to the ANT connector 3 Connect the transceiver and a PC with a CAT5 Ethernet cable 4 Start the ExpertSDR2 software with the red Start button 5 Open the Opt...
Page 11: ...rophone you are going to use 7 Open Options Sound Card menu and make sure that the Enable checkbox in the Sound card half is unchecked See picture below 8 Click OK If everything is done correctly you will see the air noise on the panorama and hear the sound in the headphones ...
Page 12: ... not switch off the transceiver with the PWR button while LED is blinking 8 Operation of the LED on the front panel LED blinks it means the transceiver is initializing and not ready for operation If it constantly blinks it means there is no network connection LED is stable NOT blinking transceiver is ready for operation and can be connected to the ExpertSDR2 In the SunSDR2 QRP we used an advanced ...
Page 13: ...e you about 20 seconds after switching on 9 Regulatory requirements We Expert Electronics LLC declare that SunSDR2 QRP transceiver has been tested in accordance to essential protection requirements of the R TTE Directive 1999 5 EC on the approximation of the laws of the Member States relating to Radio Spectrum Matters and found the test results meet the limitation of the relevant test standard s l...
Page 14: ... and will therefore not be disposed of with household waste Dispose of the device to your local collection points for electronic equipment Copyright 2018 Expert Electronics LLC All Rights Reserved DUC DDC SDR Series SunSDR2 QRP Transceiver Specifications are subject to change without notice or obligation and specifications are only guaranteed within the amateur radio bands V1 0 01 29 2018 ...
