[Hammarlund] Hammarlund Restoration & Noise Level
Frank Barnes
fbw4npn at gmail.com
Wed Jun 5 19:49:17 EDT 2019
I'm aware of the lousy propagation & sunspot cycle. We're not in a Maunder
Minimum but I surely long for the days when the bands were hotter. I've
been hamming since 1956 and have been thru several cycles. I've worked into
Europe with a two watt 6V6 xmtr during the best cycle and couldn't raise
Eurome with a 4-1000A KW during the worst.
Oh, well, I'll just have to live until the next good sunspot cycle (I'm 78
now, it should hurry along).
On Wed, Jun 5, 2019 at 7:42 PM D C _Mac_ Macdonald <k2gkk at hotmail.com>
wrote:
> Are you folks unaware of where we are in the sunspot cycle? There is so
> little aid to propagation that at times the FOT (Frequency of Optimum
> Transmission) is BELOW the 80 meter band. The MUF is not much higher,
> either. 10 MHz transmissions simply don't go that far these days! Try the
> 5 or even 2.5 MHz frequencies or the 3 MHz frequency for CHU depending upon
> time of day. The propagation "pipe" is simply choked off much of the time.
>
> 73 de Mac, K2GKK/5
> Since 30 Nov 1953
> Oklahoma City, OK
> USAF, Retired ('61-'81)
> FAA, Retired ('94-'10)
>
> ------------------------------
> *From:* hammarlund-bounces at mailman.qth.net <
> hammarlund-bounces at mailman.qth.net> on behalf of Frank Barnes <
> fbw4npn at gmail.com>
> *Sent:* Wednesday, June 5, 2019 18:27
> *To:* Jon Teske
> *Cc:* Hammarlund at mailman.qth.net
> *Subject:* Re: [Hammarlund] Hammarlund Restoration & Noise Level
>
> CHU in Ottawa uses a 10kw xmtr, and WWV in Fort Collins also uses a 10kw
> xmtr. Don't know about their antennas. When I had an "atomic" clock here
> at the house, I could never get it to synch up with WWV so as to stay on
> time. Dunno why WWV is so weak here. It's very weak or often not heard
> on the 500+ foot loop antenna and the same on the inverted vee. CHU is
> rarely heard on the inverted vee, but strong most of the day, and readable
> all day, on the loop.
>
> I'm not sure that our elected officials know what decade it is, much less
> what time it is. Think of the money we could save if they met only every
> other year, like some state legislatures do. But then the TV "commentator"
> industry would collapse. Boo hoo.
>
> On Wed, Jun 5, 2019 at 11:58 AM Jon Teske <jdteske at verizon.net> wrote:
>
> > Here in Metro Washington DC it is also hard to hear WWV on any frequency.
> > Now
> > when I last tried I was just using 50-60 feet of random wire out the
> > window. I have no
> > antenna to compare with your set up. I suppose one might be tempted to
> > blame
> > WWV that our elected politicians don't know what time it is. I suspect
> > that is
> > not the root cause. They should never have moved it out of Greenbelt, MD
> > (I was once located next to the Goddard Space Flight Center. (Actually it
> > is
> > the other way around. Goddard (which just celebrated its 60th
> Anniverary)
> > was
> > built next to WWV. Does anyone know why the east coast of the US is such
> > a dead
> > zone for WWV?
> >
> > Jon W3JT
> >
> >
> > -----Original Message-----
> > From: Frank Barnes <fbw4npn at gmail.com>
> > To: hammarlund <hammarlund at mailman.qth.net>
> > Sent: Wed, Jun 5, 2019 9:50 am
> > Subject: [Hammarlund] Hammarlund Restoration & Noise Level
> >
> > I had posted earlier about restoring a HQ-129-X and how much I liked it.
> > But the QRN noise level was intolerable at my location, wiping out almost
> > every station.
> >
> > Antenna in use was a ~400 foot low elevation random wire snaked in a
> rough
> > "J" shape through the woods behind my house.
> >
> > I just added another 100 feet of wire to it and converted it to a
> > roughly-shaped LOOP antenna, fed with 450 ohm twinlead. Bingo! The
> > noise disappeared almost completely and I now have dozens of stations to
> > choose from.
> >
> > Horizontal loops are known to be less responsive to radiated interference
> > from various devices, and noise in general, but I did not realize how
> much
> > difference one would make.
> >
> > I can tune in CHU on 7.85mhz in the morning and the receiver will sit on
> it
> > all day without drifting, after warm-up. CHU is in Ottawa. Oddly, I can
> > almost not hear WWV from Fort Collins, CO, on 10mhz...very weak and
> > sometimes not at all. I can't imagine that the "loop" is directional.
> >
> > I think that even a 100 foot loop would perform well. Receiving - only,
> > of course, not for transmitting. I'm happy with the HQ now.
> > Frank
> > W4NPN
> >
> > --
> > Frank Barnes
> > W4NPN
> > Chapel Hill, NC
> > Grid Square FM05
> > Cell 919.260.7955
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>
> --
> Frank Barnes
> W4NPN
> Chapel Hill, NC
> Grid Square FM05
> Cell 919.260.7955
> ______________________________________________________________
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--
Frank Barnes
W4NPN
Chapel Hill, NC
Grid Square FM05
Cell 919.260.7955
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