Hello,

I am wondering if it is possible to make a home brew gps
differential transmitter?

I know on my gps board, a small ashcroft, the corrections are
input on a single pin, but I do not know how or in what format?

So, what's the format, how is it done?

And, I was thinking of using the inexpensive TX RX modules for
transmitting the correction from a stationary second gps(from a
known position), after receiving and calculating the error correction?

Is this a reasonable approach?


thanks

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