[Lowfer] WG2XRS 72.401...

[Douglas D. Williams]

Bob,

Looks like your signal is doing FB here in TN. Dex is also booming in. Not
sure who that is below Dex. A spur?

Doug KB4OER


On Sun, Sep 8, 2013 at 1:00 PM, Bob Raide <rjraide at hotmail.com> wrote:

> Jay;
> From the tremendous voltage at the base I would say maybe under 10 ohms.
>  I can draw a 2 inch arc off a screw driver!  I have a hotwire amp meter
> and will stick it in line later and get an idea.  I just rolled out one
> 150' chicken wire radial to the NE to maybe help things abit.  I am going
> to add a few more long radials this fall to try and get the best ground
> system I can.
> I would say the safest level is about a KW for me to use.  I would guess
> that would be maybe .5 W ERP[?] with ground system out.
>
> > From: jrusgrove at comcast.net
> > To: lowfer at mailman.qth.net
> > Date: Sun, 8 Sep 2013 12:33:01 -0400
> > Subject: Re: [Lowfer] WG2XRS 72.401...
> >
> > Bob
> >
> > Was wondering what your antenna R is without the ground system. Do you
> have an rf ammeter in the
> > antenna lead? The better ground system is only going to make the arcing
> situation worse.
> >
> > Some quick calculations assuming antennas like you and I have ... at
> 72.4 kHz:
> >
> > 1200 watts / total antenna R=40 ohms (poor ground system) ... 16.4 kV at
> top of loading coil
> >
> > 1200 watts / total antenna R=10 ohms (excellent ground system) ... 32.8
> kV at top of loading coil -
> > yikes!
> >
> > Much over 20 kV requires good insulation, corona rings etc - damp wx can
> be a show stopper. Good
> > idea to have a fire extinguisher handy for 73 kHz 'high power'
> operations!
> >
> > Jay
> >
> >
> >
> > ----- Original Message -----
> > From: "Bob Raide" <rjraide at hotmail.com>
> > To: "Bob Raide" <lowfer at mailman.qth.net>
> > Sent: Sunday, September 08, 2013 12:04 PM
> > Subject: Re: [Lowfer] WG2XRS 72.401...
> >
> >
> > > Tnx Jay for great report.  Have couple minor issues-high voltage at
> vert input flashing
> > > occasionally  but otherwise no problem at 1200 W. Backed off to 1 KW
> and fine so far!
> > > Got some good reports over night out to 800 miles or so and JD
> listening this morning.  Got to get
> > > ground system out before all tunes up properly.
> > >
> > >> From: jrusgrove at comcast.net
> > >> To: lowfer at mailman.qth.net
> > >> Date: Sun, 8 Sep 2013 11:11:23 -0400
> > >> Subject: Re: [Lowfer] WG2XRS 72.401...
> > >>
> > >> Bob
> > >>
> > >> Signal off back of antenna http://www.w1vd.com/grabber.html . Quite
> audible off the front of the
> > >> antenna. Distance 288 miles. No interference and low static levels at
> the moment - could hear a
> > >> pin
> > >> drop on the frequency.
> > >>
> > >> Jay W1VD
> > >> WD2XNS
> > >> WE2XGR/2
> > >> WG2XSR/2
> > >>
> > >> ----- Original Message -----
> > >> From: "Bob Raide" <rjraide at hotmail.com>
> > >> To: "Bob Raide" <lowfer at mailman.qth.net>
> > >> Sent: Sunday, September 08, 2013 11:02 AM
> > >> Subject: [Lowfer] WG2XRS 72.401...
> > >>
> > >>
> > >> > Will be changing over to QRSS60 from 45 and on for few hours
> daytime-Bob
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