Ham Radio Sheet Metal Ground

Antenna wire build your own antenna components.

Ham radio sheet metal ground.

President oro valley amateur radio club. A very large pizza sheet might be around a meter in diameter or iow 50cm in radius. The device is intended for long grounding wires. Zip wire primary wire.

That s only 05 wavelengths at 30 mhz which is a tiny ground plane. Many hams actually have to bridge each joint with short jumper wires and sheet metal screws to stop the rf noise particularly if near a commercial broadcast transmitter. The grounding device utilizes a coaxial line where the ground wire is enclosed by a shield such as rg 8 transmission line to prevent the buildup of high voltage standing wave near the station equipment. Exothermic ground rod welding materials.

Second running the wire that close to metal is probably gonna make it act more like transmission line than antenna. With any radio most vertical antennas need a large metal ground plane called the counterpoise. Copper strap is sold at hardware and roofing stores as flashing. Bonded to house ground if distant from house it should not be bonded to house ground coax shield will provide inductive connection so most lightning current will go to tower grounds distant 200 ft cable run from base to house.

This is called a ground loop. Safety stand tower platform. Then connect the bonding strap or pipe to your ac safety ground rod with a heavy wire. Tower and antenna books.

This grounding system addresses both the electrical ground and rf grounding requirements in ham radio. Ham gear usually has a ground terminal just for this purpose. If an external device is connected to the mic jack and that external device grounds the mic shield back to the station ground or power mains safety ground it will introduce hum into the audio. For a mobile installation the best location for any vertical antenna is going to be in the middle of the most automotive sheet metal and as high as possible.

A cookie or pizza sheet works fine as a ground plane for a 70cm or even 2m vertical but it s a very small ground plane on 10m or lower bands. Tinned copper ground braid 1 2 wide and 3 4 wide. Sales supplies and service. World s largest supplier of amateur radio ham radio and communication equipment.

Slots on bottom for copper strap to enter and ground copper sheet.