BUT-TLK Rev 0a - Page 1 of 1
Butternut® - 1200 Southeast Ave. - Tallmadge, OH 44278 USA - Phone: 330-572-3200
Instructions
Model BUT-TLK
For the HF2V
Please review the section of the HF2V manual called “Optional Accessories for the HFV2
and Notes on Top Loading”, as well as the related drawing before proceeding.
The TLK consists of four stranded wires, each 25 feet long. One end is terminated in a lug,
the other end of each wire will be attached to one of the insulators provided, once the exact
amount of top loading desired has been determined. The wires should be at 45 degrees
sloping downward from the antenna. A 1 inch #8 bolt with hardware has been provided for
attachment of the four wires to the antenna.
1. Remove the bolt joining antenna sections (K) and (L); the 5/8 inch and 1/2 inch tubes.
Pass the 1 inch bolt through the lug ends of two of the top loading wires, then pass the
bolt through the holes in (K) and (L). Place the lug ends of the remaining top loading
wires over the threaded end of the 1 inch bolt, and fasten the two tubes firmly together.
Before final tightening, position the lugs on each side of the joint so they will point in
the proper direction once the antenna is in place.
2. Since the junction of tubes (K) and (L) will be about 25 feet above the ground, the point
at which the lower end of each top loading wire and its support line will terminate can
be estimated closely enough to tie each off loosely before the antenna is raised. This
will minimize the chances of tangled wires as the antenna goes from horizontal to
vertical.
In general, it will be more convenient to work with the lower section (B) of the antenna
already installed. Sections (G) thru (M) may be walked into an upright position while
supported by the top loading wires, and the lower end of (G) may be lowered into the
upper end of (B). The top loading wires are not intended to serve as guy wires, so they
should be left with a fair amount of slack at all times.
3. Top loading will lower the resonant frequency on each band for which the antenna is
designed. The amount of loading that can be used with the HF2V while maintaining
low SWR on 40 meters is limited. If less than the full length of each wire is used, it may
be more convenient to wrap the unused wire back on itself instead of cutting it. Any
kind of light twine or other non-conductive line can used to run from the insulators to
the tie down points.
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