The T03DSP High Performance Transceiver with DSP IF processing
Designed by Oleg Skydan UR3IQO
The T-R Switch Board
The T-R switch is used to provide the two
lines +12R and +12T with the following voltages:
| State |
+12R |
+12T |
| Receiving |
+12V |
GND |
| Transmitting |
GND |
+12V |
This
voltages are used for TX/RX switching. The switching process is controlled by DSP.
The schematics of the Switch board is 
here.
All materials provided here are copyright by
Oleg Skydan. In all cases, materials are
provided for the purpose of self education and training in Amateur Radio. No use
may be make for commercial purposes without permission of the author. Please
send any comments and questions to Oleg Skydan UR3IQO.
Made in Ukraine