Hi all, I've been building a version of the hammerhead PI with some changes including a second amp in the frontend and a Atmega8 to run the timing of the TX and both sample channels. This section is working correctly.
What I want to do is add another sample channel for ground balance because the ground where I want to use it is highly mineralized the problem is I can't seem to find much information on ways to implement this type of mod.
My first idea was to set the Atmega8 up to transmit 3 TX pulses at about 100us each with 100us receive with between each and sample two times for each receive time one for target and one for earth field cancel. Then have a receive period after the third TX pulse of say 300us and sample once during this time for ground balance, then amplify and invert and feed back into the main channel output.
Would this idea work and does the ground mineralization take a long time to decay ?
Thanks
Mick_GD
What I want to do is add another sample channel for ground balance because the ground where I want to use it is highly mineralized the problem is I can't seem to find much information on ways to implement this type of mod.
My first idea was to set the Atmega8 up to transmit 3 TX pulses at about 100us each with 100us receive with between each and sample two times for each receive time one for target and one for earth field cancel. Then have a receive period after the third TX pulse of say 300us and sample once during this time for ground balance, then amplify and invert and feed back into the main channel output.
Would this idea work and does the ground mineralization take a long time to decay ?
Thanks
Mick_GD
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