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2Meter Slim Jim Antenna


This 2 Meter 300 Ohm Slim Jim antenna is constructed from regular 300 ohm twinlead
post 18 Dec 2021


Antenna for UHF VHF Links

163



Stacking with Coax Cables as Transformation Lines
The stacking cables are made of odd multiples of 1/4-coax-cables 3/4-, 5/4- or 7/4

The HB9CV 144 Antennas
The HB9CV is a well known two element antenna of a directional beam type with a forward gain of 4 to 5 dBd

The normal-mode helix antenna
A helix will work in the normal mode when the diameter and pitch of the helix is less than 0.1 Lambda When working in this mode the radiation is from the side of the helix, and when the diameter is considerably less than 0.1? the resultant 'spring' has a radiation pattern similar to a short vertical monopole or whip

Three Element Collinear J Pole
Working from the short end of the 5 sections of the J and looping counter clockwise through the top PVC Section, here are the measurements I used

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 80 m| 160 m| 136 khz
Bazooka
Beverage
Cb Antenna
Collinear
Cobweb
Delta Loop
Eh
End_fed antenna
EWE Antenna
Fan Dipole
Folded Dipole
G5RV
Halo
Helix
Hentenna
Hidden Antenna
Hf mobile
HexBeam
Isotron
Jpole
Loop
Log Periodic
Low Band Receiving
Moxon
Multiband
Morgain
Ocf Fed Dipole
Quad
Slot
Spiral antenna
Vertical
Vhf-Uhf-Shf
Wifi & Ghz
Windom
Wire
Yagi
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Contest Logging Software
Components-kit
Duplex Feed Lines
Fiberglass tubing
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Swr Meter System of grounding
Theory Traps Tower
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