Interface Unit for HAM Radio Equipment and Computer

Firstly i heart fully thank Rahul Srivastava, VU3WJM, who built this circuit, i just completed this project and i want to give some help to the HAMS who want to build this.


This is a circuit which can be built very easily with the easily available components in VU land and nothing is critical in this design. 
 

This unit supports so many modes like PSK31, MFSK16, MT16, Hellschriber, SSTV, RTTY,AMTOR, PACTOR, PACKET, CW and over the net Echolink and Echostation.

Schematic:

Printing the PCB:

 

Component List:

4N33 Optocoupler-1

Isolation Transformer(1500/1500 TURNS)-1

1N4148 DIODES-2

3K3-1

10KPF-3

1K5-2

33E-2

100E-1

500E TRIMMER-1

1Micro Farad/63volts cap-1

all the connectors are according to your choice and availability, but the computer needs RS-232 D-socket connector.

Note: This is just to help the budding hobbyists to make their projects easier and clear with component lists. Contact for more help.