Remote SDR V1- Purchase

“Remote SDR” is a web application for remotely controlling an Ham radio transceiver between 1 MHz and 6 GHZ. Below is the list of the main supplies of equipment to be made, excluding antennas and PCs, as part of an application to the QO-100 satellite. Purchases are made directly in China from Aliexpress, it works very well. It takes 2-3 weeks to deliver.

The receiver channel:

The transmitter channel:

For transmission security, the amplifiers are supplied with 12v and 5v only when audio frames are received by the Orange PI from the web browser. The diagram proposed here:
requires 2 relays and a switching transistor.

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