HF WIRE ANTENNAS MADE IN GERMANY
HF WIRE ANTENNASMADE  IN  GERMANY

NEWS FLASH  New QRP RIG:

"SKY-SDR"

 Simply the Best ...   Better than all the Rest  in  its  Price  Class.

Photo:  DJ0IP

A-51  807  Installation  Tips

 

The key to antenna performance for any horizontal antenna is HEIGHT.

 

All Aerial-51 wire antennas are built very light to enable use with lightweight fiberglass telescoping poles.

 

Working with these poles requires a different procedure from that which is described in many popular antenna books.  

 

The picture above shows how simple the solution can be.

 

Instead of spanning the wire legs under tension and using buckets of cement hanging from pulleys attached to the trees to compensate for swaying trees, simply span the antenna loose and let it swing with the tree!

 

Guy Rope:  Use lightweight guy rope.  The Spiderbeam 2mm Kevlar rope is ideal.  You may also use their 1mm kevlar rope for guying, unless your QTH is plagued with heavy snow and icing.

 

SPACE  REQUIREMENTS:

The dimensions shown here (above) are approximate, and slightly longer to be sure you have enough space when planning. 

  • The 807-L version is about 30 cm (1 ft.) shorter.

 

For those of you who still struggle with the metric system, here are the approximate emperial lengths:

  •  41.00 Meters  =  135 ft.
  •  28.75 Meters  =    95 ft.
  •  20.50 Meters  =    67 ft.
  •  12.25 Meters  =    40 ft.
  •    8.25 Meters  =    27 ft.

 

HEIGHT = MIGHT

 

We have not determined a minimum usable height for this antenna.

Always strive to erect it as high as possible, and as free and in the clear of all objects as possible.

 

Also, we have not specified any "best angle" to run the legs.  You may run the antenna as a flat-top (but use a support for the feedpoint);  or you may run as an Inverted-Vee antenna.  

 

The ends of the wires should be at least 8 to 10 ft. above ground, so that humans and animals cannot touch them.

WHEN NOT ENOUGH SPACE . . . 

 

It is permissible to bend the long leg once, but the bend should be well beyond the physical center of the antenna.  Here is a simple drawing  --> 

 

(disregard the word "Choke" in this picture)

 

More specific Info:  BENT OCFD


Druckversion Druckversion | Sitemap
{{custom_footer}}