[mythtv-users] Antennas

Raymond Wagner raymond at wagnerrp.com
Sat Nov 16 04:33:04 UTC 2013


On 11/15/2013 9:41 PM, Joseph Fry wrote:
> Whenever you measure a voltage, it must be measured across some
> resistance.... if its shorted, then the resistance is 0 (or near
> enough) and therefore there is no voltage.  For example.. grab a
> battery meter and measure the voltage across a battery... then connect
> a wire from the + to the - on the battery... the voltage on the meter
> drops to 0 because there is no resistance on that wire, and therefore
> the meter sees no current since all the current is running on the path
> of least resistance.

I actually ran into the opposite of this issue a few months back with a 
leaky SSR. A 38K pulldown resistor was too much to handle the amount of 
current passing through the open relay, so the line was reading hot.


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