[TowerTalk] TH-7DXX vs. TH-6DX

[Mike Murphy]

The real question is do you operate band edge to band edge.  If not, then the TH6 would be fine for you.  

I have owned a TH6 in the past and found that the SWR was fine across most of 15 and 20 and a good portion of 10 

For what it's worth, I have  installed 3 or 4 TH7s, and have not had any problems with the feed system during installation.

Good luck!

 __________________________


Michael Murphy - KD8OK


kd8ok at yahoo.com
__________________________




________________________________
From: Bob AD5VJ <ad5vj at ad5vj.com>
To: David  Thompson <thompson at mindspring.com>; Tower and HF antenna construction topics. <towertalk at contesting.com>
Sent: Tue, March 30, 2010 2:56:34 PM
Subject: Re: [TowerTalk] TH-7DXX vs. TH-6DX

The Hornet was built in 1959 it was one of the originals I am told it is
good for 500-750 watts which was a considerable limitation, but during the
CQWPX the 15 meter portion of it bit the dust. The other bands work fb.

I already own a TH-6DX and bought what I was told was a TH-7DX although the
7 is missing one of the reflector elements, it has the wrong size tubing for
the reflector and it is missing half of one of the director elements.

I have measured and checked the manuals on both beams and can make a 7 out
of the 6 if I get the feed system from Hygain, just not sure if it is worth
the time or trouble. I also read where if you install the 7 it gets real
sticky up on the tower because of how the feed system gets in the way while
you install it. So am not sure if the extra element would be worth the time
hassle and money.

The 6 is complete and I could install it tomorrow if I had the help and a
decent gin pole to do it.

Bob AD5VJ

> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of David Thompson
> Sent: Tuesday, March 30, 2010 1:01 PM
> To: Tower and HF antenna construction topics.
> Subject: Re: [TowerTalk] TH-7DXX vs. TH-6DX
> 
> What type of Hornet?  I had a Swan-Hornet TB-4H (TB-1000-4) and on the
> bands
> it was the equal of the Th6.  The TH7 does give you better bandwidth
> and the
> log sell (2 driven elements) gives you a slight gain boost..  I would
> go
> with the TH7.
> 73 Dave K4JRB
> 
> ----- Original Message -----
> From: "Bob AD5VJ" <ad5vj at ad5vj.com>
> To: <towertalk at contesting.com>
> Sent: Tuesday, March 30, 2010 11:58 AM
> Subject: [TowerTalk] TH-7DXX vs. TH-6DX
> 
> 
> > Has anyone compared these two antennas Hygain TH-7DXX vs. TH-6DX in
> real
> > life? I don't see much difference in the manuals except one is
> supposed to
> > be more broadbanded and is much more complex for feed and heavier.
> >
> > They both have four active elements on 10 and 3 active elements on
> 15&20.
> >
> > I have an option of putting up one or the other to replace my Hornet
> > tribander. According to manuals looks like either one has about the
> same
> > gain and front to back comparing the two of them so putting up the 6
> > element
> > would put less stress on the tower.
> >
> > But either one would increase forward gain 5 db and abt 7 db more
> front to
> > back compared to the Hornet.
> >
> > 73,
> > Bob AD5VJ
> >
> > 73,
> > Bob AD5VJ
> >
> >
> >
> > _______________________________________________
> >
> >
> >
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> >
> 
> 
> _______________________________________________
> 
> 
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