Greeting to all,
Our normal 40m SDR can be converted into 80m SDR with few modifications in the circuit,
1.Changing the crystal from 28.224 MHz to 14.318 MHz.
The center frequency of 80m SDR is 3.5795 MHz
2. Band pass filter.
The circuit diagram of modified band pass filter is given below.
Our normal 40m SDR can be converted into 80m SDR with few modifications in the circuit,
1.Changing the crystal from 28.224 MHz to 14.318 MHz.
The center frequency of 80m SDR is 3.5795 MHz
2. Band pass filter.
The circuit diagram of modified band pass filter is given below.
Please suggest most efficient and short antenna for 80 Meter SDR.
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