[Antennas] inverted L

Igor Sokolov ua9cdc at r66.ru
Wed Apr 18 00:35:31 EDT 2007


Practically no directivity (1.5 db) but more high angle radiation which is
useful for local communication on 160. I am building similar antenna at my
summer QTH. If you attach one more capacitive hat before the trap, by moving
it away from the base of the vertical or putting oit close to the base you
will be able to switch between CW and SSB parts of 75-80m band.
Quarter wave 160m matching section made of 25 ohm coax (2 x 50 ohm in
parallel) allow you automatic switching between 80 and 160m,

73, Igor


> Hello,
>
> I am installing an inverted L with a 80 meter trap.  The vertical portion
> takes up almost the entire vertical leg before the trap.
>
> My question is: Since the horizontal portion still radiates on 160M, does
> the
> orientation (compass direction) of the wire matter?
>
> ie. should I orient it broadside to europe?
>
> 73's
>
> Glen K4KV
>
>
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