Towertalk
[Top] [All Lists]

RE: [TowerTalk] New Tower up With Some Issues 2L40 TH7

To: <TowerTalk@contesting.com>
Subject: RE: [TowerTalk] New Tower up With Some Issues 2L40 TH7
From: "Jim W7RY" <w7ry@centurytel.net>
Date: Sat, 14 Feb 2004 18:29:48 -0800
List-post: <mailto:towertalk@contesting.com>

 Thanks.
 I'm 25+ miles from any broadcast. But, I will be sure to check it on a
radio
 when I get the feed lines into the shack!

 Thanks and 73
 Jim W7RY

> ----- Original Message ----- 
> From: "Mike Wetzel" <mjwetzel@comcast.net>
> To: "Jim W7RY" <w7ry@centurytel.net>
> Sent: Saturday, February 14, 2004 5:37 PM
> Subject: RE: [TowerTalk] New Tower up With Some Issues 2L40 TH7
>
>
> > Jim,
> >
> > Make sure and try the antennas on a radio, I've been fooled several
times
> by
> > the 259B and broadcast interference.
> >
> > Mike W9RE
> >
> > > -----Original Message-----
> > > From: towertalk-bounces@contesting.com
> > > [mailto:towertalk-bounces@contesting.com]On Behalf Of Jim W7RY
> > > Sent: Saturday, February 14, 2004 8:27 PM
> > > To: TowerTalk@contesting.com
> > > Subject: [TowerTalk] New Tower up With Some Issues 2L40 TH7
> > >
> > >
> > > Well my 70' Rohn 45 in the air. As is the Orion OR-2800 rotator,
> > > (the mounting of this rotor is the coolest thing since sliced
> > > bread!!!) 21 foot galvanized HD steel mast, (not water pipe), a 2
> > > element Cushcraft
> > > 40 meter beam (Older one) and a TH7 that I just went through and
> > > replaced hardware and the matching section is all new.
> > >
> > > Just after the 40 was put up, I checked the match with my
> > > MFJ-259B. It was resonant at 7.080.
> > >
> > > Now the TH7 just went up 9' below the 40. Re-checked the match on
> > > the 40 and it was not resonant at 7.090. Looks as if the 2
> > > element is effected little by the tribander.
> > >
> > > Now checked the match on the TH7, I was not so good.
> > > The TH7 is using the "DX" element lengths.
> > >
> > > 20 Meters: flat at 14.090. Climbs to 1.3:1 at 14.000 and up to
> > > 2:1 at 14.250.
> > > 15 Meters: 1.2:1 at   21.390  Never lower than that.
> > > 10 Meters: 1.2:1 at 28.600.  above 2.5:1 at 21.100.
> > >
> > >
> > > This is measuring at the end of the jumper hooked onto the balun.
> > >
> > > The booms of the 2 antennas are parallel.
> > >
> > > Any input would be helpful!
> > >
> > > Thanks and 73
> > > Jim W7RY
> > >
> > > _______________________________________________
> > >
> > > See: http://www.mscomputer.com  for "Self Supporting Towers",
> > > "Wireless Weather Stations", and lot's more.  Call Toll Free,
> > > 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
> > >
> > > _______________________________________________
> > > TowerTalk mailing list
> > > TowerTalk@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/towertalk
> > >
> >
> >
>

_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>