Bob,
My experience with a TH6 at 56 foot and a TH7 at 70 foot on two towers at
the same time was as follows. By-the-way, the rigs used were identical Icom
Pro III's. For the most part on 20 meters the signal strengths were almost
always the same, most always I could work the same DX on each antenna while
on 20 meters. On 15 and 10 meters there were times when propagation was
poor the TH7 would net me a few extra points in a contest, perhaps this was
more due to the height difference than antenna, but if the band was good
again not much difference. I really seen no difference in the front to back
ratio with either antenna.
At the time, the TH6 was the choice for the smaller tower due to loading
concerns. We are now at a new QTH and will be using the same antennas again
- as soon as my wife gets the two holes dug. <big grin>
GL Eric - VE3GSI
-----Original Message-----
From: Bob AD5VJ
Sent: March-30-10 11:59 AM
To: towertalk@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
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|