http://www.circuitstoday.com/field-strength-meter An Authentic Resource on Electronics Wed, 08 Feb 2012 02:09:28 +0000 hourly 1 http://wordpress.org/?v= http://www.circuitstoday.com/field-strength-meter#comment-7124 tony Wed, 12 May 2010 16:19:45 +0000 http://www.circuitstoday.com/?p=285#comment-7124 whats the highest frequency it can detect please whats the highest frequency it can detect please

]]> http://www.circuitstoday.com/field-strength-meter#comment-311 Shawn Fri, 09 May 2008 01:27:36 +0000 http://www.circuitstoday.com/?p=285#comment-311 Keeping the switch off will prevent current from leaking through the top power rail of the circuit. That way current is kept from leaking through the R2 network and the battery power is conserved. The capacitor is always in parrallel with the battery and will always remain charged (thus Vbattery=Vcap) and so no charge should flow there. Also there are always some AM signals floating around that the meter will pick up so a switch is necessary when not in use. Keeping the switch off will prevent current from leaking through the top power rail of the circuit. That way current is kept from leaking through the R2 network and the battery power is conserved. The capacitor is always in parrallel with the battery and will always remain charged (thus Vbattery=Vcap) and so no charge should flow there. Also there are always some AM signals floating around that the meter will pick up so a switch is necessary when not in use.

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