hfapt3.art

一个很小和天线计算程序

SUBJECT: HF Bird Feeder Antenna, Part three

Installing the antenna:

The base piece for the bird feeder mast should be one size larger than
the bottom section of the mast. The mast should be able to side in a
snug fashion, but not too tight. Since you are installing a 'bird feeder',
you shouldn't have any problem explaining what you are doing. Simply
lay the bird feeder and mast right out in the open. Your nosey neighbors
will know exactly what you're doing (almost). The coax is the tough part.

Trenches are out of the question. Use a sidewalk edger (manual) and make a 
thin cut in the grass. If you have other obsticles, you will have to deal
with that when you come to it. The object is to do it when the neighbors are 
not going to notice. The thin cut in the lawn will not be seen and will
'heal' quickly. A tricky technique is to use a wheelblade on a handle. It
will look like you are using a measuring device. The cable can be laid into
the cut at dawn, when you are filling the bird feeder. Stepping on the cut 
lawn on the way back seals the cut. Now you're in business.


If you have any questions, drop me a line here.


Next: Mobile resonators for HF. Their small, they work and they hide well
in places you would overlook. And they can be placed right out in the open.

My busy schedule is catching up with me right now. I'll finish this later
this week.

73, Wayne