Date: Thu, 4 Apr 2024 11:13:12 -0700
From: Michael Tope
To: topband@contesting.com
Subject: Re: Topband: B7P
Message-ID:
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I have a 402CD ready to go once I get another tower up. We'll see how
that works :-)
73, Mike W4EF
I have a 402CD ready to go once I get another tower up. We'll see how
that works :-)
73, Mike W4EF.
On 4/4/2024 10:57 AM, jim.thom jim.t...@telus.net wrote:
Date: Wed, 3 Apr 2024 22:07:33 -0700
From: Michael Tope
To:topband@contesting.com
Subject: Re: Topband: B7P
Date: Wed, 3 Apr 2024 22:07:33 -0700
From: Michael Tope
To: topband@contesting.com
Subject: Re: Topband: B7P
http://www.contesting.com/_topband - Topband Reflector
webSDR's are really fun to play with and great for testing purposes. But
you can bet the mortgage they are also being used for other less than
honorable purposes, especially on our beloved Topband.
I'm interested the RM Noise initiative (https://ournetplace.com/rm-noise/).
A search on YouTube
Here BG2AUE has been logged 3 times on 160m.
BD4WN 5 times, BA7IO 2 times and one QSO with B5TT.
Unfortunately when I check QRZ for BG2AUE his QTH is spotted in the large city
of Harbin, and his equipment does not suggest any dedicated 160m rx antennas.
My QSOs with BG2AUE have also suggested
I agree about BG2AUE. He hears very well. I worked him on 80 in December
2017.73,Gary K9GS
Original message From: John Kaufmann via Topband
Date: 4/4/24 9:59 AM (GMT-05:00) To:
topband@contesting.com Subject: Re: Topband: B7P It is also my experience that
stations
It is also my experience that stations in China and Southeast Asia in general
do not hear well at all on the low bands. One exception is BG2AUE. I have
worked him multiple times on 80m CW from my QTH in the Boston area. He hears
extremely well on 80. Every single time I've worked him there,
Having lived in the developing world for over a decade, I can testify to
the likelihood of lots of line noise, resulting from sub-standard,
badly-maintained power infrastructure. The predominance of switching
power supplies in both the developing and developed world just adds
another layer..
>It must be that there aren't very many BY hams that live in rural areas with
>low noise floors. Hopefully portable operations with verticals on the beach
>will catch on there.
They need to get phasing boxes and figure out how to use them -- those
things can't fix everything but they can clear
On 4/3/2024 8:13 AM, w3...@roadrunner.com wrote:
This thread implies that Life in China comes with huge QRM-powerline
noise, which makes a lot of sense.
Since the introduction of switch-mode power supplies, the fact that they
are cheaper than traditional linear supplies, and the mandate for
That sure seems to be the case, Bob. Heck even on 40 meters I have found
myself calling loud Chinese stations in vein. My dipole at 45ft just
doesn't cut it. It must be that there aren't very many BY hams that live
in rural areas with low noise floors. Hopefully portable operations with
Great to hear ur recording of B7P on 160m popping thru the noise, even
if I am 2500 miles further east Hi Hi.
This thread implies that Life in China comes with huge QRM-powerline
noise, which makes a lot of sense. So the Chinese ops flock to 10m.
Most of the ones I worked with my home brew Moxon
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