ANTENTOP- 03- 2003, # 004

Figure 2

Antenna has weight of 900 gram. SWR is: at 430-MHz =1.2:1, at 435-MHz =1:1, at 440-MHz=1.3:1 SWR was metered by device SWR-121. If you will use boom

When an antenna is intended for mountains it must follow such additional requirements as:

1. Light weight.

2. To have folding design and to take a little place in a backpack.

3. Antenna should be conveniently to hold in a hand, to fasten to a tree or stick. .

4. Tolerance to a dirty, water and snow.

5.Possibility to repair in field conditions.

6.  So, the boom of the trip antenna is made of a wooden

strip drying by oil. Perimeter of all ovals is increased on 20-mm compare to previous design. All struts are made from un- foiled PC-board. Antenna elements are made of 2-mm diameter soft copper wire (# 12 AWG). Soldered parts must be protected from the weather.

Igor, UA6HJG, on Elbrus

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