Having had a Cushcraft ASL20-10 log, and a Tennadyne T8 log,
AND a 3 el SteppIR, AND a kt34A, I can say the following
from personal experience:
1) The steppIR is the best of the bunch, by a significant
margin. Several reasons.
2) While I liked the logs for general use, they admitted
significant 60 over 9+ short wave broadcast signals which
heavily loaded the front end of my rigs. You can't filter
this stuff out. Things got very quiet when I went to the SteppIR.
Scrunchy, funky band noises just weren't there....which I
attribute to TOI. (take a look above 21450 some time!)
3) F/B, F/S, Gain are better on the 3 el steppIR. The logs
are basically 2 el beams on any given band.
4) Assembly is significantly quicker with the SteppIR,
perhaps a half day or more less. (2 hours from box to tower,
as compared to a full day of assembly for either lpda)
5) SteppIR has less wind load, is cleaner looking.
6) weight-wise, it's probably a wash.
7) If you wanted to try an lpda, I'd go with Tennadyne over CC;
far fewer bolted connections to get lossy over time.
8) Tennadyne T8 is probably half the price of the SteppIR, and it
9) Remember that the logs are basically a 2 el beam on any given
band. If you compare them against a 2 el SteppIR, the price delta
is less significant, and performance would be about equal.
10) In contests, with rig, amp and antenna automatically changing bands,
I never needed more than maybe 3 seconds for the antenna to tune.
Just about enough time for a sip of coffee...and a quick look
at the bandmap. Never felt like a constraint.
If your amp isn't auto-tune, you'll find the tuned antenna will make
preset-amp-tuning much more reliable. (or filecards on the knobs)
Even for general hacking around, my choice would be a 3el SteppIR,
followed by a Tennadyne t8 or t10. Wouldn't have another ASL2010, based
on their feed system. kt34a won't give you warc.
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