Topband: Call for antenna ideas

[Mike Furrey]

Hi Simon,I would like to suggest hanging a 1 wavelength delta loop off of the 50 meter tower. Easy to build, easy to match, about 1.5 db gain and you don't need to do all that work laying down radials, etc and trying to match an odd length tower. The loop will be almost omni directional and it will be bit more broad banded than a vertical, dipole, etc.

GL es 73, Mike WA5POK
 

    On Friday, September 14, 2018 1:34 PM, Simon Ravnič via Topband <topband at contesting.com> wrote:
 

 Hi!

 

With a head full of browsing and researching I decided to ask for help this Topband think tank. 

 

At S53M contest station we are well organized for 40m & up but are lacking lower band TX antennas. 

 

There are three towers in direction north - south:
The southern one is 50m high with 40m and 20m monobanders on top
Middle one is located 25m north of previous one and is 25m high with 15m monobander and 6/4m duobander.
The northern one is 28m north of middle one and is 20m high with Optibeam OB17-4.
 

There is a possibility to hang anything between them so I think we would prefer some wire antennas. Already present on the site is 160m INV-V and 80m vertical dipole from the 50m tower. What we are looking for is 160m and 80m TX antenna with two main directions 310 and 45 with low angle radiation.

 

RX antennas are OK as there are three 280m long terminated beverages, direction 270 (Caribbean), 310 (NA) and 45 (AS). 

 

To understand better see a photo of the location at

https://www.dropbox.com/s/bk44cg2zfyzpw3w/S53M.JPG?dl=0

or

https://ibb.co/gRPGVU

 

Thanks you for your idea & 73

Simon, S53ZO

S53M team

 

 

 

 

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