Original article from: Rob Dennis
Reposted by Moderator HAM_TECH,for use of the FIDO HAM_TECH echo.
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HIDDEN HF DIPOLE UNDER THE DECK:
While looking for a way to have an antenna for packet/FM that was NOT on my
tower,I found a nice place to put it (other than hanging from the ceiling).
There was just enough space under my deck out back to hide a RS discone.
While under the deck,and looking at all those nice wooden beams,I wondered
how hard it would be to hide a folded HF dipole there.
This could be done in as little as 12 inches of clearance between the deck
and the ground or as much as 2 feet like I had to play with.
Parts :
1 50 foot roll of "zip-cord" speaker or lamp wire.
A foot or two of scrap insulated wire.
Garbage bag twist ties.(the ones everyone hoards in the garage)
Some 1 inch finishing nails.
A chassis PL-259 connector.(the square ones with screw holes in)
Length of co-ax long enough to reach to the rig.
Method:
Unroll the zip-cord off the reel,then split it down the middle.
You now have 2, 50 foot lengths to play with.
Strip the scrap wire insulation in half inch bits.
Slip the bits of insulation onto the finishing nails.
Strip one end of each 50 foot piece of wire,and solder one wire to the
enter
of the chassis PL-259 and the other 50 foot wire thru a screw hole.
Under the deck,put the nails in the beams so that the wires will look like
a pair of "S" curves.
=========X X=========
| |
|========= =========|
| |
=========| |=========
The PL-259 should be at the "X".
The "S" can also be `head-to-head' as well,just depends on the space you
ave
to play with under the deck.(like |-X X-| )
The "S" could also have more than one "S" curve per leg.
The nails go in each corner of the "S" to support the wire.
Use the twist-ties to hold the wire onto the nails on top of the insulation
to keep the wire away from the wood.
Run some co-ax to it,tune-up,and away you go.
May not work on 80 meters,but should do for 40 and up.
... "If they say it CAN'T be done ,prove them WRONG and do it"de VE3SJN
___ Blue Wave/QWK v2.11
-!- Maximus 2.02
! Origin: Ready & Determined (1:163/506)
--- GoldED 2.42.G1219
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* Origin: VE3SJN....Moderator....HAM_TECH (1:163/506.4)
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