[Elecraft] Counterpoise vs ground wire ?

[Don Wilhelm]

I agree that the PAR EndFedz antennas are good and easy to put up.
The reason the PAR EndFedz can use no counterpoise wire has to do with 
the return connection for the tuning network - it is connected to the 
coax shield.  That means the coax shield is doing double duty - the 
outside is acting as the counterpoise while the inside is carrying the 
RF current.
For End Fed Halfwave Antennas that do not have a connection like that, 
the use of a short (0.05 wavelength) counterpoise is required to make it 
work.  For more informationm check out the information by AA5TB at 
http://www.aa5tb.com/efha.html.

73,
Don W3FPR

On 7/1/2012 4:36 PM, Ariel Jacala wrote:
> We have had great success with end fed half wave dipoles made by LNR Precision without the need for counter poise wires nor even tuners.  Specifically we have used the 40-20-10 multi and version which we used for field day this year.  When properly tuned at first use, the SWR have been below 1.5 for the bands it was designed for.  I use it all the time with KX1 without the need for an ATU.  I have made plenty of contacts into eastern Europe which is better than a 1000 miles per watt on a KX1 when used as a vertical or near vertical sloper.
>
> Google Par end fed 40-20-10 and look at the reviews on eHam.
>
> Ariel NY4G
>
>