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CHANNEL.  WWV TIME AND FREQUENCY STANDARD RADIO STATION OPERATED BY THE US
NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY NIST.  WWV BROADCASTS IN THE
SHORTWAVE SPECTRUM AT 5, 10, 15, 20 OR 25 MHZ.  SEE TF. NIST.
GOV/STATIONS/ WWV. HTML FOR MORE INFORMATION.  OBTAINING GOOD GROUND
COUNTERPOISE SYSTEM STRUCTURE OF WIRES OR RODS, OFTEN BURIED, DESIGNED TO
PROVIDE A LOW IMPEDANCE GROUND.  EXOTHERMIC WELDING A HIGHLY EFFECTIVE AND
EASY TO IMPLEMENT METHOD OF JOINING COPPER OR COPPER AND STEEL GROUNDING
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CONDUCTORS USING A CHEMICAL REACTION TO WELD THE PIECES TOGETHER.  SEE WWW.
ERICO. COM FOR MORE INFORMATION.  GROUND ROD USUALLY STEEL WITH COPPER
PLATING ROD, TYPICALLY 6 TO 8 FEET LONG, DRIVEN INTO THE SOIL TO PROVIDE A
GROUND CONNECTION.  NATIONAL ELECTRICAL CODE A STANDARDS DOCUMENT OWNED BY
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MI/341 I4ACO/344 JA3ART/360 JR3IIR/349 IK8HJC/339 JH2UVL/350 K8CX/350 ON6
HE/348 W4AVY/380 K3KO/344 OK1MP/374 W9NGA/355 DL6NW/346 I4AVG/344 JA3AUQ/
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