> I can't find it now, but a couple years ago I found some calibrationdata
> comparing the Loos PT-2 on 3/16 EHS compared to the SS wire rope it was
> designed for. I recall that the PT-2 read perhaps 10 percent high on the EHS.
> (The true tension was lower than the PT-2 indicated.) Since EHS is very
> stiff, that makes sense. However, K7LXC, in "Up the Tower", made a similar
> measurement, and found little difference in the readings. These measurements
> were all made with a piece of 19 strand 3/16 SS in series with 7 strand EHS
> and a commercial tension gauge. Yes, there is a difference. My test as
> mentioned above showed the straight-line reading was as expected. What I
> didn't take into account was the relative stiffness of each wire which would
> be differences in the actual deflection and thus measurement. (I'm not an
> engineer obviously.) A real comparison was posted on TT and the result
> was that the Loos reads 10-20% or so lower than actual. I thought I had
> included that verbage on the website but apparently not. IMO it's more
> important for the guy tensions to be equalized than it is to have exactly the
> amount of specified tension, as long as it's within a tolerable range, that
> is. Tension varies with temperature so there'll be some variation in the
> tension anyway. In any case, the Loos is a valuable tool I wouldn't be
> without. Cheers,Steve K7LXCTOWER TECHProfessional tower services for
> amateur and professionalandchampionradio.com
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