[Lowfer] 12-7-20 WM, SJ, and 7P

Wed Dec 9 16:41:48 EST 2020

i'll switch the rx to 184,000 and the west end-fire double flags around 
0030z (Ward's SS).  argo at qrss30 centered at 1303hz.

- Eric NO3M

On 12/9/20 4:25 PM, wa3tts at verizon.net wrote:
> Ward:  If your antenna ground system is isolated from your home AC 
> service ground, I think you might find the resistance between them 
> fairly low, which
>
> I believe can lend power line coupling on the neutral wires on the 
> poles to ground along with inductive near field coupling from the LF 
> radiator. Likely it happens
>
> on the  receive end of the link as well.   Since SIW and WM both had 
> substantial signals over the course of the evening, the rule of thumb 
> for Free space path loss 34.5 + 20Log(f) +20Log(km) in dBs
>
> would reduce a given signal at given frequency by 6dB for each 
> distance doubling, so 12~18 dB down compared to their 430 mile paths 
> versus the 1690 mile path for EN90xn < > DM33nl seems plausible,
>
> especially with some propagation enhancement and lower atmospheric 
> noise. I have been working on common mode chokes and choke shielding, 
> trying a preamp at the antenna, and other system
>
> improvements. It was encouraging to see K3SIW had similar results to 
> my rx at 1/3 closer distance. I would think NO3M's  1,000ft phased 
> beverages would handle the QSB on the path and have better SNR
>
> for their narrowing pattern versus the much broader pattern and more 
> QSB-phase-prone EWE antenna. Maybe ask Eric for a listen at 185.303 
> QRSS30 slow....
>
> Thanks much for the beaconing....
>
> 73, Mike, tts
>
> PS: Eric.. Ward running "7P" lowfer on 185.303 QRSS30 for next week...
>
>
> -----Original Message-----
> From: Ward K7PO <wmwheaton at aim.com>
> To: wa3tts at verizon.net <wa3tts at verizon.net>; lowfer at mailman.qth.net 
> <lowfer at mailman.qth.net>
> Sent: Wed, Dec 9, 2020 10:30 am
> Subject: Re: [Lowfer] 12-7-20 WM, SJ, and 7P
>
> HiMike,
>
> QRSS30. All these reports seem too good to be true, but I went out 
> this morning and verified the input, 1W.
> So, unless I've lost the ability to measure V and I, or do math, it 
> should be right.
>
> This is my first experience with QRSS longer than 3 seconds, so I 
> don't know what to expect.
>
> Thoughts?
>
> Ward K7PO
>
>
>
>
> -----Original Message-----
> From: MICHAEL SAPP <wa3tts at verizon.net>
> To: Ward K7PO <wmwheaton at aim.com>; Discussion of the Lowfer (US, 
> European, & UK) and MedFer bands <lowfer at mailman.qth.net>
> Sent: Tue, Dec 8, 2020 10:51 pm
> Subject: Re: [Lowfer] 12-7-20 WM, SJ, and 7P
>
> Ward: What QRSS speed? I will give a listen.
> Mike Wa3tts
>
> Sent from my iPhone
>
> > On Dec 9, 2020, at 12:17 AM, Ward K7PO via Lowfer 
> <lowfer at mailman.qth.net <mailto:lowfer at mailman.qth.net>> wrote:
> >
> >  Hi Andy,
> > Not bad for a couple of BS170s! Thanks for the report. I'll probably 
> only run theLowfer 7P for the next week or so while I am working on 
> the main MF/LF antenna.
> > 7P is using a U3S with 2 BS170 final transistors. Antenna is my 
> original 630m part 5antenna, 50'of Al tubing with an extensive ground 
> system of chicken wire sections out
> > 100'. After the 100' LF/MF antenna went up, I lowered the shorter 
> one since theyare only about 40' apart. I'm not too worried having the 
> Lowfer on with the mainantenna up, but I don't think I want to TX on 
> the big antenna (630/2200m) with the
> > 50' antenna up. Plus the grounds are currently mingled together as 
> well. I really didn'tthink anyone would be able to hear it so it was 
> just an experiment to see how far awayI could hear it. About 4 to 5 
> miles, as it turns out.
> >
> > If I want to continue on 1750m I'll need to move the 50' antenna to 
> the other side of
> > the property. And I just got done telling the YL that the work on 
> the 100' antenna wasthe last project for a while . . . .
> > 73,
> > Ward K7PO
> >
> >
> >
> >
> > -----Original Message-----
> > From: Andy - KU4XR via Lowfer <lowfer at mailman.qth.net 
> <mailto:lowfer at mailman.qth.net>>
> > To: Discussion of the Lowfer US European & UK and MedFer bands 
> <lowfer at mailman.qth.net <mailto:lowfer at mailman.qth.net>>
> > Sent: Tue, Dec 8, 2020 8:53 pm
> > Subject: [Lowfer] 12-7-20 WM, SJ, and 7P
> >
> > Hi all;
> >
> > put a couple of spliced SpecLab captures in dropbox of the lowFER 
> Watering Hole.
> > At lowFER specs, seeing " 7P ' from Tonopah, Arizona at a distance 
> of 1,641 miles,
> > is remarkable.
> >
> > 
> https://www.dropbox.com/s/gpbmtuljc7u9gsf/Watering_Hole_12-7-20_Overnight.bmp?dl=0 
> <https://www.dropbox.com/s/gpbmtuljc7u9gsf/Watering_Hole_12-7-20_Overnight.bmp?dl=0>
> >
> > 73
> > Andy, KU4XR
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