The goal, One Antenna, 10 Bands, 10 - 12 - 15 - 17 - 20 - 30 - 40 - 60 - 80 - 160 Meter.
Upon initial testing, very good results.
HB9ABX RoomCap Antenna
Yet another new, revolutionary design which allows the construction of small HF antennas which provide the same efficiency as large antennas.
(Maybe but probably not !!! - G6KIZ)
This antenna can be built for all HF bands, from 10 to 80 m.
A Stealthy HF Coat Hanger Antenna
No, this is not about some cute antenna that's about the size of an oatmeal box and runs at 100% efficiency from 160 all the way up to 10 meters (and 6 meters if you leave the oats). In fact, there's nothing new on this page. It's just about a very common HF antenna that I recently built.
First an eyes check. Do you see an antenna in this picture?
9 band vertical HF antenna
Simple vertical radiator with a not so simple matching box. No traps, no tuner required.
10-80m MOBILE HF MULTIBAND ANTENNA PROJECT
This is a combination center and top loaded multiband antenna. It gets a good boost in efficiency from the
capacity hat which, unlike the commercial bugcatcher antennas, is located where it should be: as high as
practical on the whip. The low profile of the capacity hat lets it cut through the wind while still remaining
effective. This is the largest diameter hat which can withstand highway speeds without using a stiffer whip.
Band switching is accomplished by moving the jumper plug to different tap points on the coil. You have
to stop, get out, and manually change the tap.
The GRASSWIRE another approach to hidden HF antennas
Deed restrictions got you down? Neighbors intimidating your tower plans? Need a really easy portable HF antenna? Then the grasswire may be the answer! Virtually invisible, lightweight, and compact (you can carry one in your hip pocket), this antenna works! It has been used by K3MT in various installations for more than 10 years.
Read on - and listen to the "experts" telling you that this is hogwash, that an antenna like this can't work. But it does. And true experts, who have taken a decade or more to come to grips with the intricasies of Maxwell's Math, know why it works.
THE DOUBLE BAZOOKA ANTENNA
The Double Bazooka Dipole is a very efficient single band antenna which is very quiet and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends.
160-10M Sturba Curtain
This design will work all bands from Top Band to 10M using a tuner.
Phil Salas AD5X 40 through 6 meter HF Portable Antenna
Simplified and improved design from that published in the July 2002 QST. Now an aluminium tube design which is lighter and more compact tan the original.
Quickie Vertical KQ6RH
Here I am sitting in front of the rig listening to everyone working CQ World Wide, and I don't really have time for this, but I hear a few interesting stations on 20 meters and try to call them. Trying to bust the pile up with 100 watts and my hustler dipole is going to be difficult on this band, so I tune up on 15 meters and there is action, and I have a good wire beam, so I tune up and down the band and can't find a clear frequency. Then I hear some one say that 10 meters is open. So I tune up there, and there is a world of DX coming in. I choose a few interesting ones to call, but can't be heard. I should have expected that, as my antenna for this band leaves much to be desired.
