Antenna Skypper 3 Elementi
Why choose the Skypper-Antenna.
The Skypper-Antenna is a 3 Element wire-Yagi, supported by fibreglass rods.
The total weight of this antenna does not exceed 2kg and it’s portable length does not exceed 1 meter, therefore it is easily portable by one person.
Although the antenna is small and weighs almost the same as a 1 Element Loop, it has the same front-to-back-ratio as a full-size 3 element monoband Yagi.
Skypper: an invisible beam on your roof!
You can put the Skypper below your vertical antenna…
It can be disguised with the radials of your vertical antenna or groundplane…
It is also possible to use just another vertical rod of 2,75 meters height, it looks like a groundplane-clone on your roof!!!!
You shouldn´t have anymore legal problem… from the street your antenna looks like a normal groundplane, but….. in fact, it is a full size 3 element yagi!!!!
For this system a 8 meter vertical reed is not necessary, only a normal slim iron tube, connected to the antenna with optional clamps. A little TV rotator is more than sufficent to turn the Skypper Antenna, this saves much money for other useful things, like a good tower or big rotator.
Antenna requirements summary:
This antenna is perfect for Dx’peditions as it is:
1. Light (only 2,7 kg including a 8 meter fibreglass pole)
2. Easy to errect (no bolts or screws/5mins max)
3. No impedance adaptor or balun required.
4. Max power capability of 2kw.
5. Tough and durable (professional fisherman type fibreglass rods used)
6. Easily transportable (folds down to 1 meter)
When installing beam antennas it is better to get them errected as high as possible, because an antenna with less gain errected as high as possible will produce a better signal than one of a higher gain errected at a lower height.
It´s low weight makes it much easier to put the skypper-beam higher up and choose better locations.
Use it while travelling, activate a nearby mountain, island, castle or lighthouse, put it on the roof for a contest weekend, this antenna goes everywere you need high gain and very good performance!
Antenna Performance:
forward gain is about 5dBd (7,2dBi) in free space (= 12dBi in 8m height above ground) and stays nearly constant over the whole band.
- F/B ratio is about 25dB or better
- SWR stays below 1:1
- BANDWITH: 26,5 to 28,5 down swr 2:1
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