wpri268
Newbie
I question if I have a ground loop problem between the AC ground and a vertical antenna radial system that may be causing some RFI.
My AC safety ground consists of two 8' rods one vertical, one horizontal driven into the earth. The horizontal one is several feet below grade and both are nearby the breaker panel.
The radial system for the transmit antenna is made of thirty, 60ft long #12 buried wires fanned out in a semicircle.
My receive antenna is two ground independent pennant antennas galvanicaly isolated from the coax feedlines via transformers. The coax outer braid however is common with the radial system at its center where it meets the vertical antenna. Coax from both antenna systems runs about 90ft on top of the ground to receiver and transmitter.
There is no direct connection between the radial system and AC ground except through the coax outer braid and grounded chassis of receiver and transmitter. This seems to me to create a large ground loop. Should I connect the radial system to AC ground directly? Otherwise, should I isolate the RF and AC grounds completely even though this is not recommended for lightning protection?
My AC safety ground consists of two 8' rods one vertical, one horizontal driven into the earth. The horizontal one is several feet below grade and both are nearby the breaker panel.
The radial system for the transmit antenna is made of thirty, 60ft long #12 buried wires fanned out in a semicircle.
My receive antenna is two ground independent pennant antennas galvanicaly isolated from the coax feedlines via transformers. The coax outer braid however is common with the radial system at its center where it meets the vertical antenna. Coax from both antenna systems runs about 90ft on top of the ground to receiver and transmitter.
There is no direct connection between the radial system and AC ground except through the coax outer braid and grounded chassis of receiver and transmitter. This seems to me to create a large ground loop. Should I connect the radial system to AC ground directly? Otherwise, should I isolate the RF and AC grounds completely even though this is not recommended for lightning protection?