[Lowfer] SIW (WM) in CT
jrusgrove at comcast.net
jrusgrove at comcast.net
Fri Jan 13 15:15:06 EST 2017
Mike
Ground conductivity of 8 ... wish we had that here!
We're a terrible 1 - 2 in CT.
A few years back KU4XR ran a beacon from eastern TN ... also about 750 miles from here. His setup was rather modest and XR's
signal was on par with SIW. Ground conductivity at his location is in the 2 - 4
range according to the maps.
I'm still convinced WM isn't working up to potential ... even for a modest
setup. Just
sayin'.
Jay W1VD WD2XNS WE2XGR/w
----- Original Message -----
From: N8OOU <n8oou at meekfarm.us>
Reply-To: Discussion of the Lowfer \(US, European, & UK\) and MedFer bands <lowfer at mailman.qth.net>
To: Discussion of the Lowfer \(US, European, & UK\) and MedFer bands <lowfer at mailman.qth.net>
Sent: 1/13/2017 10:50:54 AM
Subject: Re: [Lowfer] SIW (WM) in CT
Jay,
Thanks for the capture showing the WM beacon. I am personally happy to
see that you were able to acquire enough to bits to make an ID.
I am not taking your comments as throwing stones. For that past couple
years I have seen that WM can not compete with the signal strength of
others in the band. I know there are several contributing factors in
that equation. My current configuration is running about 75 mA of
antenna current, and I can light only three bulbs of an NE-2 tree.
I will be the first to admit my lack of LF technical expertise, and test
equipment to put a first rate station on the air. Also contributing is
the amount of funding for this hobby.
A third factor is the physical location of the beacon. A look at the FCC
ground conductivity map shows the beacon is located in a grade 8 portion
of the state, compared to other areas of IL which are 15. Two thirds of
my farm is river bottom ground where the Wabash river run long ago, the
rest is a 30+ foot higher sandbar created by the river which is where
the transmitter/antenna are located.
I have been trying different configurations of antennas over the past 2
years to improve the signal including using an Ashlock Loop with his
hardware. I am currently working to construct the next antenna revision.
There is a possibility that no matter what I construct, or how much
money I spend, I will never have a strong signal compared to my peers
because of my location.
Thanks for listening.
73 de N8OOU - Mike Meek
On 01/13/2017 06:35 AM, jrusgrove at comcast.net wrote:
> Nice quiet morning with SIW peaking 20 dB out of the noise. Full capture at
> http://www.w1vd.com/grabber.html .
>
> Note the difference in signal level between SIW and WM ... WM not visible for
> the most part. SIW is 787 miles at a heading of 276 degrees ... WM is 798 miles
> at a heading of 260 degrees ... an inconsequential difference. This leads me to
> believe
> there's
a problem at WM. Perhaps the transmitter is not developing full power, the
antenna isn't
> really at resonance,
> there's a problem with the antenna
coupling system or the ground system resistance is extraordinarily high.
I've
> received all of the midwest beacons that have been on the air over the past 16
> years ... most with similar signal levels to that of SIW.
>
> Not throwing stones here ... just trying to point out a potential problem at
> WM. I'm
looking forward to seeing a more robust WM one of these days!
>
> Jay W1VD WD2XNS WE2XGR/2
>
>
>
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