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This entry is made for friend not subscribed to Tower Talk
My friend has 8 over 8 Telrex monoband stack on hill top.-
this Telrex system is from 20 years ago using hardwired
phasing system per Telrex ( we think is it 1/2 wave lengths
of 72 ohm coax from center location where 52 ohm Hardline
comes up the Mast) . Each phasing line goes to balun mounted on each 8 =
el 15m yagi.
The tower is rotating , so nothing is moving on the tower !
Except elements in the Wind !
SWR was 1.1 to 1.0 , Now after many years it is 4.5 to 1.0
for reasons as yet unknown. pretty sure there is failure in phasing
harness. Need to know BEST way to replace phasing harness??
Suspect problem is UV damage to COAX jacket - as system is installed at
8,000 feet in Colorado Rockies.
Hardwire phasing is perfered over selectable. Any suggestions on =
realiable
phasing arrangements are welcome. WX0B stackmatch ???
I am very impressed with the collective "know how" available on this
reflector - it's like having access to some kind of awesome "brain =
trust"
Josh N7XM Colorado Mtns
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<DIV><FONT color=3D#000000 size=3D2>This entry is made for friend not =
subscribed to=20
Tower Talk</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>My friend has 8 over 8 Telrex =
monoband=20
stack on hill top.-</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT><FONT size=3D2>this Telrex =
system is from=20
20 years ago using hardwired</FONT></DIV>
<DIV><FONT size=3D2>phasing system per Telrex ( we think is it 1/2 wave=20
lengths</FONT></DIV>
<DIV><FONT size=3D2>of 72 ohm coax from center location where 52 ohm=20
Hardline</FONT></DIV>
<DIV><FONT size=3D2>comes up the Mast) . Each phasing line goes to =
balun=20
mounted on each 8 el 15m yagi.</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>The tower is rotating , so nothing is moving on the =
tower=20
!</FONT></DIV>
<DIV><FONT size=3D2>Except elements in the Wind !</FONT></DIV>
<DIV><FONT size=3D2>SWR was 1.1 to 1.0 , Now after many =
years it is=20
4.5 to 1.0</FONT></DIV>
<DIV><FONT size=3D2>for reasons as yet unknown. pretty sure there =
is failure=20
in phasing</FONT></DIV>
<DIV><FONT size=3D2>harness. Need to know BEST way to =
replace phasing=20
harness??</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>Suspect problem is UV damage to COAX jacket - as =
system is=20
installed at</FONT></DIV>
<DIV><FONT size=3D2>8,000 feet in Colorado Rockies.</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>Hardwire phasing is perfered over selectable. =
Any=20
suggestions on realiable</FONT></DIV>
<DIV><FONT size=3D2>phasing arrangements are welcome. WX0B =
stackmatch=20
???</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>I am very impressed with the collective "know =
how"=20
available on this</FONT></DIV>
<DIV><FONT size=3D2>reflector - it's like having access to some =
kind=20
of awesome "brain trust"</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>Josh N7XM Colorado Mtns</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV></BODY></HTML>
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