[VHFcontesting] [222Activity] 222 Activity Night TODAY! Be there or be square!

[David Olean]

That is a problem.  Being able to get chest x-rays is best done in a 
hospital or doctor's office, not in your ham shack!

Dave K1WHS

On 6/22/2021 11:01 AM, Dave N9HF wrote:
> I will try to be on tonight. The biggest obsticle I have to deal with 
> here are the nearly everyday afternoon/evening thunderstorms.
> Dave
> N9HF
> el99
>
> /
> /*
> /RYRYRYRYRYRYRYRY
> /
> *
>
>
> On Tue, Jun 22, 2021 at 10:45 AM David Olean <k1whs at metrocast.net 
> <mailto:k1whs at metrocast.net>> wrote:
>
>     It is Tuesday and that means that there will be all sorts of
>     activity on
>     222 MHz. If you want to check out the latest update to your 222
>     setup,
>     tonight is THE night to check it out. KA2LIM in western New York
>     will be
>     checking out some mods that he made, and I will be trying out
>     version 3
>     of my high voltage power supply. Version 1.0 was just ugly and crude.
>     Version 2.0 was very pretty and used 12 X 2200 MFD 550 volt
>     electrolytic
>     capacitors in a big capacitor bank.  After having a very robust arc
>     event that took out my HV fuse, I calculated the energy stored up in
>     those capacitors, and decided that I had gone overboard a little
>     bit. I
>     mean 183 MFD at 5500 volts does seem a bit big!  1600 joules of
>     energy
>     is not trivial.  I also had a failure of one of the 12 equalizing /
>     bleeder resistors, and that got me to thinking that using a bunch
>     of low
>     voltage capacitors in a high voltage power supply was not a good
>     idea.
>     Yeah, I know, everybody does it, but I felt more comfortable having a
>     single high voltage rated capacitor and a honkin' 200 watt wire wound
>     bleeder resistor.  Hence Version 3.0!  I now have a 30 MFD at 5 KV
>     non
>     PCB capacitor installed along with an 80 Kohm 400 watt bleeder
>     arrangement all set for this evening on 222 MHz.
>
>     Yes, I know that there are many areas of the country where
>     activity is
>     rather sparse. All it takes is two stations to get on and make a
>     contact.  With the availability of chat pages now, it is a simple
>     matter
>     to find someone at a suitable distance and try a difficult sked
>     over an
>     un believable distance. You might surprise yourself.  I know that
>     Marshall, K5QE (Bless his soul) gets on for Tuesday night, and has no
>     local activity, so he tries to drum up a meteor scatter, EME, or
>     tropo
>     scatter sked every Tuesday.  We need many more stations to be
>     active in
>     out of the way places to try to extend our collective range. This
>     is how
>     we can maximize our stations. Try something difficult! 900 miles is a
>     good meteor scatter distance. Tropo scatter can work out to 400-600
>     miles depending on your station and whether you can catch a tropo
>     peak.
>     Last week, I managed to work KO4YC at 525 miles while running 80
>     watts
>     here. I don't know how Cornell managed to copy my flea power, but
>     he did!
>
>     I will be QRV at about 7 PM (2300 UT) on 222.1 or thereabouts. Try to
>     make an appearance and make a contact or two. It should be showery
>     along
>     the East coast, so it is a good time to be inside and on the radio.
>
>     Dave K1WHS
>
>
>
>
>
>
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