“PIXIE” is a very small volume of simple 40 meter band micro-power amplitude telegraph transceiver, Despite it's small size and DC receiver limitations, it is capable of working several hundred miles when connected to a good 40 meter antenna. “S-Forty-9er”, Designed by “LXQQFY.com”,. Improvements are as follows:
The vertical resistance is changed to horizontal resistance, Solves the problem of resistance to short circuit.
We do not distinguish between positive and negative electrodes of power supply. Power input range increased to 13.8V.
Add the buzzer sounds for send (use jumper shield), Add led signal for send.
Add acrylic shell.
Specifications
Power supply: 9~13.8V 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: the CW
KEY: Manual
Case: Acrylic