Home |
Search |
Today's Posts |
#15
|
|||
|
|||
On Sat, 4 Sep 2004 09:39:56 -0300, "Just a suggestion..."
wrote: Is sea water a good reflector because it has good conductivity ? If you think it has good conductivity, do you wire your house with it? Do you have a radial field using #38 wire in a one meter grid? Both laughable propositions here, but those tears of mirth turn to the dewey eyed mist of religious belief when Salt Water "conductivity" is mentioned. Sand is the least lossy ground beneath your feet, but how well does it contribute to DX? Add some water and the loss skyrockets - and this is called the boon of conductivity! No, it is called the boon of reflectivity. The Z changed and power CANNOT penetrate the interface. If you cannot get power into it, there is nothing to conduct (and it is the molecular polarization and relaxation moment that causes this, not conductivity). The legends of mature spinsters are many with respect to the qualities of ground - they even inspire useless software as crutches. I have seen NO ONE here who can recommend it (much less admit they don't even have a clue on what values would be appropriate for their own locale). Hence most discussion is either faith-driven, speculation, or simple hucksterism. 73's Richard Clark, KB7QHC |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Inverted ground plane antenna: compared with normal GP and low dipole. | Antenna | |||
Poor quality low + High TV channels? How much dB in Preamp? | Antenna | |||
QST Article: An Easy to Build, Dual-Band Collinear Antenna | Antenna |