SDR Transceiver - Part 1 Overview and Transmit/Receive Switching

Опубликовано: 11 Март 2026
на канале: NA5Y
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In this series I will combine the Receiver and Transmitter into a single transceiver with transmit/receive switching

Here's the schematic (incomplete as of posting - will continue to build on it)
https://github.com/thaaraak/SDR-Trans...

Here's the datasheet for the FST3257
https://www.onsemi.com/download/data-...

Here's the relays
https://www.ebay.com/itm/291762418219

0:00 Walkthrough of transceiver block diagram
1:53 RF Switch and Audio Switch highlights
2:41 Receive Path
4:45 Transmit Path
6:28 Audio Switch Details
7:41 FST3257 Datasheet walkthrough
8:58 Audio Switch implementation
10:18 Audio Switch testing
11:07 Audio Switch on the breadboard
15:43 RF Switch schematic
17:51 Relays that will be used
18:34 Wrapup and next steps