Image and video hosting by TinyPic (Funkbasis) Image and video hosting by TinyPic Forum (DX27) Image and video hosting by TinyPic 11m Cluster Image and video hosting by TinyPic QRZ11 Map Image and video hosting by TinyPic QRZ11 Forum Image and video hosting by TinyPic CLUB Image and video hosting by TinyPic CDX

4 Elements Yagi

4 Elements Yagi

Postby qrz11 » 13 Feb 2011, 14:20

* TNX to 19 SD 348 *



Serious results can be expect when you have a 4 elements Yagi, in most
cases all what the Big-guns are working you will be able to hear and work
the Dx as well.
With the 4 elements yagi we come on a point when we must pay serious
effort to ouwer mast and rotating system. Light 4 element can still be
used with light rotators like channelmaster although their life is reduced
with extra bearings this again is lenght. But better is to put a system on
your mast like a G600 or an equivelent and a heavy duty 4 elements with
this you will have a long lasting solution and one wich is able to make
some great DX-results.

Short version BOOMLENGTH 5,69M Type : HPSD 4 S

Design frequentie = 27,55 Mhz-----A = 4,57 m-----G = - 1,59 m
Gain = 7 dBD---------------------------B = 5,02 m
F/B = 22 dB-----------------------------C = 5,19 m
Beamwith = 85,2 deg----------------D = 5,46 m
Bandwith = 800 Khz------------------E = 2,60 m
Element thickness = 22 mm---------F = 1,50 m


Above mentioned you can see the schematic diagram (not drawn to
scale) and the antenna his radiation pattern in the azimuth plane.

Long version BOOMLENGTH 6,82 m Type HPSD 4 L

Design frequentie 27,55 mhz-----A = 4,935 m-----G = 2,22 m
Gain = 8 dBD-------------------------B = 5,08 m
F/B = 30,2 dB------------------------C = 5,18 m
Bandwith = 700 Khz----------------D = 5,48 m
Beamwith = 67,7 degrees---------E = 2,49 m
Element thickness = 22 mm-------F = 2,01 m

The pattern diffrence from the one mentioned above:

User avatar
Site Admin
Posts: 158
Joined: 02.2011
Gender: Male

Return to "Antenna Information"


Who is online

Users browsing this forum: No registered users and 0 guests

web tracker