Pete,
I had a TH6 and then replaced it with a TH7 circa 1990, at 54' up the TH6
was a far better antenna then the TH7. I was sorry that I sold the
TH6. Last Summer I replaced the TH7 with a C3E from Force 12, the C3 is
every bit as gud and in some cases better then the TH7. I gained the use
of 12&17meters from the force 12 C3, which of course was not possible
with the TH7. I also have used the C3E on 30 meters with good results.
The C3 is devoid of traps, a plus in my book, the C3 is half the weight
(33 lbs.) of the TH7 another plus. I nearly always work CW, , last year
all the DXpeditions that were around E3, E4, 3C0, etc. I've managed to
work using the C3E without the use of my Alphfa 86. I'm only short 6
more on my mixed for DXCC and only Maarrttii's P5 on CW. The only draw
back I find in the C3E is that the front to back rejections is poor
compared to the TH6/7. However, the C3E is a boon to those who ferment on
weekends engaged in a contest. The turning of the antenna becomes minimal
since signal can be adequately worked from behind as well as in front.
In addition, on windy days the swr fluctuated somewhat 1:1-1:1.4 on 15
meters only. I had considered the skyhawk antenna but, at the time of
purchase interest, I could not get adequate pricing or literature spec.
info. When I finally got something from Bencher, the price for me $$$ was
very prohibitive and caused a severe nose-bleed due to the high cost
quote. I did acquire the antenna comparison tome as penned by Steve &
Ward and perused it prior to my 1-800-antenna dealer search. Lots of
comments are also found regarding the C31XR, some of the hams that
frequent the same cw spots as I with the C31XR seem to do very well. At
any rate, hope your quest for info regarding C31, C19, etc. result in an
antenna that you will enjoy. I am happy with the change from the TH7 and
would not consider taking a step back.
'73,
Al
Peter Larsen wrote:
> Hi All:
> As every one is having fun with the C-3 vs T-6 debate,
> here is a question to add to the pot.
>
> I have a TH-6 at 72 feet. I am thinking of replacing it
> with a C-19XR.
> How would these two antennas match up?
>
> >From Force 12's web page:
>
> C3 C19 C31
> 20 4.6 (-.6) 5.2 (+.8) 6
> 15 4.8 (-.2) 5.0 (+1.3) 6.3
> 10 4.4 (-1.5) 5.9 (+1.5) 7.4
>
> >From Steve and Ward's measurements (plus some "funny math")
> The math is mine so flame me not the other gents.
>
> C3 C19 C31 TH-7
> 20 3.3 (3.9 to 4.1) 4.9 3.0
> 15 4.3 (4.5 to 3.7) 5.0 3.5
> 10 2.7 (4.3 to 4.5) 6.0 2.9
>
> It seems to me that the C-19 would be a good substitute
> for the TH-6
> The C-19 wasn't tested but I made the assumption that F-12
> tested all their antennas the same, and that the gain figures
> would hold up under the tri-band report's protocol.
> The other assumption I made was that the TH-6 would be quite
> close to the TH-7.
>
> So am I all wet?
>
> --
> 73 es have fun
> Peter
> VE6YC DO21wc
> "Where Are We Going And Why Am I In This Hand Basket?"
>
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