Frog Sounds HAM Radio QRP Kit Telegraph CW Transceiver Receiver Radio Station
This is a very small volume of simple 40 meter band micro-power amplitude telegraph transceiver, the DC power supply using a 9V battery or an external 9-12V side of. In relatively good spread, they can and amateur radio within hundreds of kilometers near the provinces communicate. This machine was first introduced by domestic radio enthusiasts, and gave it played a nice name "frogs"
Power: 9V-12V (12V linear regulated power supply is recommended)
Antenna: 50 ohm, unbalanced
Transmit power: 1.9W (using 9V power supply), 2.6W (using 12V power supply)
Frequency: The oscillator frequency emission: 7023KHz; receiving local oscillator frequency: about 7023-7026KHz
MOSFET 2N7000 kit to be used as a final element of soldering, in order to prevent electrostatic breakdown, 2N7000 soldering iron should disconnect the power supply heat soldering
Factors affecting communication distance are: antenna and erect, spread bad weather, the surrounding environment is electromagnetic interference, individual operational level.
The kit is CW manner (similar to the previous telegram), not speaking
1 x Frog Sounds HAM Radio QRP Kit Telegraph CW Transceiver Receiver Radio Station
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