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

[Chet]

Consider buying or borrowing from your club's copy of  the K7LXS tribander
report from the moderator of this reflector.  This report covers just about
all the tri banders except the stepIRs which were not available at the time
the report was done.  This report  provides on the air comparisons Of these
tribanders all of which were done on the same antenna range.  I have had
both the th-6 and the th-7 and didn't see much difference.  Hygain sells a
beam refurbishing kit for about 40 bux with new trap covers, hardware etc.
If you are buying a used th-6 or 7, this is money well spent as the UV makes
these traps brittle and I'd bet you have already noticed some cracked trap
covers.  I have a TH-3 that we use for field day I have refurbished 3 times
with these kits.  

If you are not locked into the th-6 - 7  this report also recommends some
better performers.  

73

Chet N4FX

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Bob AD5VJ
Sent: Tuesday, March 30, 2010 11:59 AM
To: towertalk at contesting.com
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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