|Subject:||Re: LF: Top loading - to short or not to short?|
|From:||"Dick Rollema" <[email protected]>|
|Date:||Tue, 27 May 2003 09:38:54 +0200|
To Laurence and All,|
Laurence, KL1X wrote:
In looking at my LF Inverted L, and specifically the 3 wire top loading
The antenna current returns to ground via the capacitance to ground of the vertical and of the top load .
Because we want the current in the vertical part to stay as large as possible over its whole length it is best when as little current as possible flows from the vertical part to ground. So the capacitance of the vertical part should be small as compared to the capacitance of the top load.Therefore a single wire is to be preferred.
2. Ive seen a large amount of schematics both for commercial and ham top
Because the voltage on parallel wires of the top load is the same at neighboring positions a connection between those points will carry no current and therefore has no use.
Im trying to rationalize that the end of the loading wires are at Zero
The corona argument is certainly valid.
73, Dick, PA0SE
|<Prev in Thread]||Current Thread||[Next in Thread>|
|Previous by Date:||LF: Top loaded inv "L"s, Alan Melia|
|Next by Date:||LF: Re: Top loading - to short or not to short?, Dave Brown|
|Previous by Thread:||LF: Top loading - to short or not to short?, Laurence J Howell|
|Next by Thread:||LF: Re: Top loading - to short or not to short?, Dave Brown|
|Indexes:||[Date] [Thread] [Top] [All Lists]|