Looks like you were posting at the same time and beat me. Glad you at least got a siren. Thats an improvement.
I assume you've adjusted R10? If so, what kind of coax are you using? I found that twisted pair doesn't work for me and I get almost no sensitivity.
Do you have an inductance meter?
I assume you've adjusted R10? If so, what kind of coax are you using? I found that twisted pair doesn't work for me and I get almost no sensitivity.
Do you have an inductance meter?
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