**5. Power, current, and voltage requirements in pulsing excitations**

The plasma antenna requires a relatively high voltage, low current power supply.

Short pulses are applied to the terminals of the plasma tube. Peak current is about 1 A with 5 μs pulse width and a time between pulses of about 1 ms.

This duty cycle of 1/200 results in an average power of about 5 W.

Overall average power drain from the battery driving the plasma antenna will be much less than 5 W. Two standard 9 V batteries and/or one 6 V.75 AH SLA battery can operate a plasma antenna. The smart plasma antenna can operate on a 12 V car battery which is enough voltage to ionize the plasma in 12 tubes and run the computer.

The power losses of the supply voltage connected to the plasma antenna are because the VSWR numbers in many cases indicate a very good match between the feeds and antennas.

Anyone trying to build a plasma antenna according should consult a licensed electrical safety expert before proceeding. After consulting a licensed electrical safety expert, proceed as follows. Use a three-wire grounded power cord and

securely attach the green ground wire to the metal enclosure. Install an appropriately sized fuse or circuit breaker to protect from short circuits or overloads. Always unplug the unit before modifying or working inside.

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