Flag Counter 

Open QRP

This excellent kit is sold by Kanga Products of Atherton, Greater Manchester. Although complex to build a lot of thought has gone into the assembly instructions with the build being divided up into sections and the components for each section individually bagged and identified.                     


OpenQRP 40 Meter Transceiver Specifications:-

  • Single Band : 40 meters (other bands with component changes)
  • Tuning range: 60KHz minimum via varactor diode
  • Tuning Control 10K 10 turn potentiometer
  • Receiver Incremental Tuning, Fine Tune Option
  • Mode: CW only
  • Receiver MSD: TBD uV
  • Four crystal IF filter with 690 Hz center frequency
  • IF Selectivity: 400 Hz
  • 4 pole audio active bandpass filter
  • Receive current: Active: 50 ma No signal: 30 ma
  • Transmitter: Final Amplifier IRF510 MOSFET, 6-8 watts output at 13.5 volts
  • Spurs: TBD dBc maximum
  • CPU: ATmega168 @ 16.384 MHz based on
  • Arduino microcontroller platform
  • Open source software, written entirely in C
  • In-circuit programming (ICSP)
  • 5 to 55 wpm internal iambic keyer,
  • Iambic A and B, keyer emulation modes
  • Six Pushbutton inputs
  • 16 character by 2 line LCD display
  • Frequency readout 100Hz resolution
  • Relative signal strength indicator
  • Built in CW decoder
  • Power supply voltage readout
  • Front panel controls: Tune, RIT, and RF gain
  • On board trimmers: AF gain trim, LCD,Contrast trim, Tx Drive adjust
  • Coax 50 ohm output, modular BNC jack
  • 1/8” Jack inputs for Iambic Paddle and Audio output (stereo headphones)
  • 2.5mm Power Supply jack
  • PC Board Size: 4.5” wide X 5.0” deep
  • Painted Aluminum Enclosure with silkscreened legends
  • Power supply voltage: 9 volts minimum, 16 volts maximum.