QRP DIY Pixie CW Transceiver
Descriptions
1. Introduction “PIXIE” is a very small volume of simple 40-meter band micro-power amplitude telegraph transceiver.
Despite its small size and DC receiver limitations, it is capable of working several hundred miles when connected to a good 40-meter antenna.
Improvements are as follows:
The vertical resistance is changed to horizontal resistance, Solving the problem of resistance to short circuits.
Pixie transceivers do not distinguish between positive and negative electrodes of the power supply. The power input range is 9VDC-12VDC. But the higher voltage is advisable due to the onboard LM386 chip needs extra power to amp up audio output. price/$8
Specifications:
Power supply: 9~12V Volts DC, >500mA (Recommend the use of batteries).
Antenna: 50ohm,7MHz, SWR<2.0 Receive: static current 20mA Transmission power: 1.2W Frequency: launch the vibration frequency,7023 KHZ Receives the local oscillator frequency: about 7023-7023 KHZ.
Work mode: CW KEY