[Lowfer] WG2XRS 72.401...

Sun Sep 8 14:46:33 EDT 2013

And, ha ha, I forgot to include the picture in my previous posts.

Anyway, here is Dex (middle) and Bob (top) and the mixing between their
signals (bottom). The short dots are the sidebands from Dex's strong CW ID,
which is still clearly audible.

Drift is on my end, as I had just turned the receiver on.

Doug KB4OER

https://dl.dropboxusercontent.com/u/33457409/72400.jpg

On Sun, Sep 8, 2013 at 1:23 PM, Douglas D. Williams <kb4oer at gmail.com>wrote:

> Yea, it's some sort of mixing between Dex and Bob's signals.
>
>
> On Sun, Sep 8, 2013 at 1:16 PM, Douglas D. Williams <kb4oer at gmail.com>wrote:
>
>> 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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