[SADXA] CADXA SHARE Vertical antenna
RSoifer1 at aol.com
RSoifer1 at aol.com
Tue Dec 29 15:49:17 EST 2015
Tom,
The club has a number of antenna experts, one of whom I (BSEE, 1963) am
not. Nonetheless, it is my understanding that the vertical you describe will
exhibit some directivity to the east, but not gain over an equivalent
vertical with 48 radials in all directions. The directivity results from
losses to the west.
At other frequencies, the patterns will be different but will also favor
the east.
OK guys, have at me.
73 Ray W2RS
In a message dated 12/29/2015 1:18: P.M. US Mountain Standard Time,
CADXA_SHARE1 at yahoogroups.com writes:
As an extra class I suppose I should know this but, I can’t say I
precisely know:
hSuppose I have a 1/4 wave vertical antenna pertup pretty much in the
clear of man-made obstacles and I make a set of 24 radials of about 1/4
wavelength. I arrange these radials so that they all occupy azimuths of 0 degrees
(north) through 180 degrees (south).
t
Will this arrangement give the vertical a certain degree of directivity to
the east?
If the above statement is true, will this be frequency independent?
Tom NQ7R
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