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Wednesday, 13 October 2010

DigiModes interfacing

I dug out an old radio interface that I built some years ago, the design was actually part of an article on

Anyhow I've had this bit of kit to pieces today and will be doing more fiddling with it tomorrow.

I have always had difficulty getting the TX and RX LEDs to function correctly so I've added some separate circuitry to do that today. Somehow I misread a relay and I've managed to regulate down the +13.8V supply going into the box to +5v - this is driving a 24V relay! Muppetry!

So tomorrow I'll play some more and swap out the relay for a 5V unit I have here.


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