Home |
Search |
Today's Posts |
#10
![]() |
|||
|
|||
![]() Cecil Moore wrote: When I lived in the Arizona, clear-sky wind-driven charged dust particles transferred lots of energy to my bare-wire G5RV. It caused arcing whether the outside braid was grounded or not. It only happened when the wind was blowing and the humidity was very low. But that effect is common no matter where we live. As I've said several times, a high dipole here for 160m charges enough to knock you on your rear on a calm sunny day if the coacial line is well insulated from ground. It is not wise tol have a large high antenna that was well-insulated from ground, since the accumulated charge can suddenly discharge through a series capacitor and damage equipment. Utility companies must ground unused wires that run for miles to prevent build up of charge, so that is not something that just occurs in arid climates. Do you agree that a charged particle will transfer energy to the bare wire in a dipole when it touches it? If not, why not? Of course it will IF it is at a different potential than the wire. If the antenna were link coupled, do you agree that the above transferred energy will try to equalize between the two dipole elements? If not, why not? Of course it will. Do you agree that the equalizing of the charges between elements would cause a current to flow through the link? If not, why not? Of course it will. I disagree wth your contention that the link, if the noise comes from each particle hitting the antenna, will reduce noise. That's the part that makes no sense. Maybe you can explain why the link (or folded element) would reduce that noise. 73 Tom |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Transfer Impedance(LONG) | Shortwave | |||
ECM Noise on CB | Equipment | |||
'Crackling' Noise on HF Band | Shortwave | |||
RACAL RA-17C12 with DSP / digital readout | Shortwave | |||
Automatic RF noise cancellation and audio noise measurement | Antenna |