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Building antennas has always been of great interest for me and there are many constructions that I have found pleasure in. Here you can see some of them with  modest comments.
               - no tower, no commercial stuff,
                    - just WIRE FIRE!!
28/21 MHz yagi.
This antenna was built to match the peak of suncycle 22. It works as a 3 element yagi on 21 MHz and as a 4 element on 28 MHz. It uses different matching for each band and SWR is 1:1 on both bands. As capacitors in the Gamma matching I use short pieces of RG8 Coax cable.
Bobtail for 10 MHz.
It is hard to work DX from 60 degrees north during suncycle minima. The only chance is on lower bands and spaces outside my house could take a Bobtail for 10 MHz. As it is fed in the upper corner it is perfect for 50 ohms matching which gives me perfect SWR. The cornerfeed method results in  a different radiation pattern compared to Bobtails fed at the bottom of the middle tail. Cornerfeed Bobtail has a pattern that looks like a cloverleaf meaning that it works well in all directions.
GP for 7 MHz.
I used a loop on 7 MHz and it worked fine except in northern and southern direction. So I decided to put up a GP to cover all directions. The radiator is attached to a tree and at the top it has a fishing rod with a hook to fix it to the tree.
GP for 14 and 18 MHz.
Limited space for antennas made me to make a GP for 14 and 18 MHz. Switching bands is done by controlling 2 relays which are housed in a plastic box placed at the bottom of the radiator. There are 4 radials for each band. SWR is perfect for both bands and for 18 MHz condenser C will do the trick.
Reversible deltaloop for 7 MHz.
When being active from Gotland Island (IOTA EU-020) I have a lot of space to put up antennas. Pretty high trees are perfect for support points. When YV0D (Aves Island) should be active in july 2004 I constructed a 2 el loop for 7 MHz and put it up in direction to the Caribbean.  By adjusting a condenser I could get some gain and there were no problem working them with S9 signals.
3 el wire yagi for 21 MHz.
I got a nice pile-up when using 100 W and this antenna pointed to Japan. It is extremly lightweight so erecting it at the top of a 10 m al-mast mast is done by hand.
Bobtail for 7 MHz.
The Bobtail fed at the bottom of the middle tail and the next antenna the Double Extended Zepp behave in a very  same manner. The gain and the radiation pattern is comparable but if I have to choose I pick the Double Extended Zepp.
Double Extended Zepp for 7 MHz.
Normally the whole antenna is horizontal but I bent down the ends of the antenna to fit between the two trees and it worked nicely.
Hexbeam for 21 MHz.
In a contact with a KL7-station I first heard about the Hexbeam antenna. He said it looks like an umbrella turned downwards without cloth and can withstand strong winds. I got curious about the antenna and constructed one for 21 MHz. It worked at the first try and was a very lightweight beam antenna.
Moxon antenna for 14 MHz.
This antenna is a very kind one and often works at the first try. I have tried several types ( vertical and horizontal) on different bands and all have worked nicely.
Reversible Moxon antenna for 7 MHz.
This antenna is also called FBA (Flip Beam Antenna) and direction of the antenna can be changed using relays or a switch. Signals increase/drop 3-4 S-units when changing direction.
10, 14 and 18 MHz dipole antenna.
This antenna is working fine on all 3 bands with only two hanging points, trees or masts.
Diamond antenna for 14 MHz.
If you have limited space for antennas and want to work DX on 20 meters this one can be an option. it is only 6 meters wide compared to a normal dipole which reaches 10 meters. It has a low impedance feeding. There are 2  alternatives for matching the antenna to 50 ohm coax. Use 2 75 ohm coax cables in parallell or use a 50/22 ohm balun. This one helped me to work 5W0GC and 9X0T in spite of bad propagation in October 2018.
Veebeam antenna.
This antenna is working nicely on all bands using an antenna tuner between the 600 ohm ladder and the transceiver. Some gain is also obtained.
Vertical Moxon antenna for 28 MHz.
There are some reasons why you should endfeed your vertical Moxon antenna. You donīt need a hanging coaxcable from your radiator. You get an antenna with less windbreak and an antenna in good balance. You just need to voltage-feed the radiator with a simple LC parallel resonant circuit like you feed a Bob Tail antenna or a Half Square antenna.
Vertical Moxon antenna for 14 MHz.
This vertical Moxon is also endfeded. The parallel resonant circuit in this antenna uses a piece of RG8 coaxcable as a condensor. Remember to keep the open end of the RG8 secured from water (rain) because of high voltage. On 25 june 2011 this one helped me with FO/F6CTL in Marquesas island.
Halfsquare antenna for 10 MHz.
Due to QRM into my neigbours HI-FI speakers using the Bobtail described above I replaced it with a Halfsquare antenna placed 15 meters out of houses. Using a link with capacitor in serie the SWR is perfect zero. It works fine even to the south but best directions are west/east. The horizontal part of the antenna is hanging in south/north direction.
Linear loaded antennas.
When space is limited one has to design and build shortened antenna. One way to do this is to use the linear loaded koncept. By using 450 ohms ladder lines as stubs the construction is a piece of a cake. I have used a griddip meter to adjust the lengths of the stubs to obtain the demanded frequency. Below you can find dimensions for antennas for 7, 14 and 28 MHz. All antennas are 70 % of normal lengths.
Rotatable loop for 14 MHz.
This simple antenna is working extremly well. Compared to a Double Extended Zepp at same hight and same direction it has more gain and less noise. So it is a very attractive antenna for portable use on both receiving and transmitting side.
Ultralight yagi for 28 MHz.
This yagi is small and very light by using plastic tubes as a boom. The insulated wires for the element is inside of the fishing rods who in original are 3 m long each. Keeping the wires inside the rods makes the element a little bit shorter and prevent bad SWR when raining. The performance is good but if you expect high winds you should use an aluminium boom instead of the plastc one. This antenna helped me to work ZS8Z on May 22 2013.
2 el yagi for 28 MHz.
This yagi is quite similar to the one above but only using radiator and director. It uses a 50:22 ohm balun to match the lower resistance at the feeding point. The balun includes a capacitor with value of 100 pF. A bit of RG58 can be used instead of a ceramic one.
Mini Horse (MH)-antenna.
- kicks like a grown-up horse                                           
- takes the space of a pony
- broad as a highway
Ever looked for an antenna which has good gain, nice F/B, 50 ohms matching, excellent bandwidth, small turning radius and great mechanical stability? This antenna is for you! If you need a nec-file to play with just send me a mail.
Compact Moxon antenna for 10 MHz.
This antenna only needs 2 trees or masts to be hanged up in the air. It works nice with about 7 dB gain and 15 dB F/B hanging 12 meters above ground. More gain and better F/B if you can put it higher.
A 40/30/20 meter vertical on a flagpole.
If you are in a hurry getting on the air or donīt want to disturb your neighbours with ugly antennas this antenna can be the solution. It is a vertical tribander fixed to the flagpole with radials on the ground. Traps are made of coax cable using VE6YP coax trap program.
A 17/15/12/10 meter vertical on a fishing rod.
Vertical antennas with only 2 elevated radials are simple but also quite good antennas for DXing. Another advantage is that it can be placed where there is no good ground or at the edge of your lawn so you can cut your grass without thinking of radials on ground. The traps also shortens the antenna a bit.
A 40 meter vertical with 2 elevated radials.
As mentioned above vertical antennas with 2 elevated radials are simple and very cheap antennas for DX-ing. This one works fine from 7.0 to 7.2 with SWR < 1.5. If you use bare wire you should prelong the elements with 4%. On 15 september 2010 I worked ZS8M using this antenna.
Moxon for 28 MHz.
This antenna is very smal but works very fine. The 1 mm insulated wire is inside the fishing rods. Excellent front to back and gain is nice for such a small beam antenna. This one helped me to catch K9W on Wake Island on 12 November 2013.
Slope Loop for 10 meters.
This antenna is in perfect balance focused to a mast by some fishing rods. The antenna is a 2 el Delta Loop with sloping elements. The gain of the antenna is like a 3 element yagi and the front to back ratio is about 8 dB.
2 el phased vertical for 40 meters.
Combining 2 verticals with 2 elevated radials each and 3 pieces of coaxcables gives you a phased vertical. Gain is 2-3 dB over a simple vertical and F/B is about 15 dB.
2 el Diamond Loop for 10 meters.
This antenna might be the smallest 2 element antenna with a turning radius less then 1.6 meters. It gives a gain of 4 dB over a dipole and the F/B is about 15 dB. It needs a balun transformer 2.25:1 to match the 20 ohm impedans at the loading point.
2 el yagi for 21, 24 and 28 MHz.
Solarcycle 24 is here and the higher bands will hopefully be in good shape. This antenna is small and perfect for portable use. Elements are made of 1 mm insulated wires supported by fishing rods. Gain is about 4-5 dB and F/B is about 8-12 dB. Best performance on 28 MHz.
Coax dipole for 28, 24 and 21 MHz.
The feedpoint of this antenna is in the midpoint of the dipole. The shield of the coax is used as one leg of the dipole. The coax leg has to be trapped by a coil and a condenser in parallell. The coil is made by the same coaxcable and the condenser is soldered to the shield of the coax. The condenser is a piece of RG58 coax cable. Try it on your balcony. No radials needed.
Vertical Diamond Antenna for 28 MHz.
This antenna gives a little more gain than a dipole at same height. Using a 10 meter fishing rod as a mast it is very light and is perfect for portable operations.
5/8 vertical for 28.4 MHz.
A simple but effective antenna for DX-ing is the 5/8 wavelength vertical antenna with only two radials. The trick is to match the vertical to 50 ohm coax. By using a tapped coil it is possible to get perfect match. With this one at 1 meters height I worked XT2TT with low power. At higher heigths the performance is greater.
21, 24 and 28 MHz dipole antenna.
This antenna is using fishing rod as the bearing frame for all three bands. The wire for 21 MHz is inside the fishing rod to prevent problems with SWR when raining. The antenna works fine on all higher bands.
3.5 and 7 MHz dipole antenna.
Using coax traps and insulated wire this inverted dipole antenna can be used on 3.5 and 7 MHz fed by one single 50 ohm coaxcable.
ZIGZAG antenna for 28 MHz.
This antenna is very small and should fit into any location. Boom is only 0.7 meters and each element is less than 4 meters. I use a plastic boom so the antenna is also very light. The radiation resistance is about 10 ohm so a couple of quaterwave 50 ohms cables in parallell is used to match 50 ohm to the radiator. It performs as well as an fullsize 2 element yagi.
A 2 element beam antenna for 7 and 10 MHz.
By using coaxial traps you can build this antenna for 7 and 10 MHz. It is shaped as a Moxon antenna and works fine on both bands. To mechanical balance the antenna a support line is connected between the middle of the reflector to the coax cable.
N-antenna for 7 and 14 MHz.
This is an easily built antenna for 2 bands. You need 2 fishing rods mounted vertically, 21.06 m wire and an ugly balun. Best performance is on 14 MHz.
One pole and 5 bands.
This is an 5 band antenna using inv. vee-antennas for 7, 10, 14, 18 and 21 MHz (using 7 MHz wires). The wires are supported by a pole made of fiberglass tube inserted into an aluminium pole.
MH mini yagi for 18 MHz.
This is a 2 element version of the MH antenna. As known the best gain obtains from a 2 element yagi counted per elements. Another element adds gain with 1-2 dB but makes the antenna bigger and heavier. F/B affects in small extent by more elements.

 This antenna is very small but the performance is like a full designed 2 el yagi with a reflector. Matching impedance is low but can be handled with a  couple of quaterwave 50 ohms cables in parallell. Using a ATU you can feed the antenna directly with a 50 ohm coaxcable. As seen in the graph the best gain obtains in the lower part of the band and the best F/B in the higher portion of the band.

Vertical for 40, 30, 20, 17, 12 and 10 meter.
This vertical is doing a great job on several bands and fits into a small garden. You can work on 40 to 10 meters using an ATU.
Delta Loop for 15 and 10 meter.
The delta Loop for 2 bands is used standing on the ground which makes it easy to dismantle if the wind is to strong. Data is almost comparable with dipoles for these bands.