I'm a bit troubled by this. I looked up "hamstick" and if google told me the truth then this is a reduced-length antenna where the wire is wound around it.
You are using QRP and that adds a challenge. Then you add a "compromise antenna" and you get even more of a challenge. Don't be surprised if your results are not very good...
PE1HZG does have good point, that the antenna efficiency
is an important consideration for expected performance,
particularly with QRP. But sometimes the physical
circumstances (space and supports available, portability,
etc.) dictate a compromise solution.
Your results will be greatly dependent on the band you
are using. Expect around 10% efficiency with a good ground
system on 40m, and just a few percent on 80m. But on
20m and higher bands, where the antenna is approaching
1/8 wavelength, the efficiency may be 50% or more,
depending on your ground system.
(One problem with using a chain link fence is that you
don't necessarily know how well the sections are connected
together electrically. So try it and see.)
A bit of background. The original "HAMSTICK" was sold by the
Lakeview Company, now out of business as far as I can tell.
It uses wire wrapped around a fiberglass tube or rod for the
bottom half of the antenna, and an adjustable steel whip for
the top half. The antennas are designed for mobile use and
the length is about 8' (2.4 m).
Several other companies now make similar antennas, and,
whether or not the word "HAMSTICK" was a registered
trademark, that is the generic term used to describe them.
One of the major differences is that with some of the newer
versions you can unscrew the top whip without disturbing
the tuning, rather than having to loosen the set screw to
remove the whip.
The primary efficiency problem (besides the short length on
the lower bands) is the close-spaced, small diameter coil.
This increases self-capacitance, and, as the coil length
increases on the lower bands, the antenna looks more like
a base-loaded antenna rather than center-loaded. A
larger diameter loading coil in the center of the antenna
would improve efficiency, but the antennas wouldn't
store as easily, and manufacturing wouldn't be as simple.
Something like this.That's not to say that you can't make contacts with them
at QRP power levels, even on 80m. But it certainly will
be more difficult than with a more efficient antenna, or
higher power levels. They work best at 20m and higher
frequencies.