[Elecraft] FW: Seems That 6 Meters is Some What Open

[Charlie T]

"> So what is the the magic set of circumstances that opens a 6 m path
between AK and AZ?"

Answer:  Sunspots........

I have worked many Alaskan station when the sunspots accommodate,  from here
in Virginia.
We're talking F-2 NOT E layer.

One of my first was with a guy running ten watts to a Halo on his 2nd story
garden apartment.

It seems as the MUF goes higher, it takes less & less power to make the
contact.

73, Charlie k3ICH


WAC, DXCC @ 156 countries, and 1st Virginia to make WAS on 50 MHz However, I
do NOT chase grid squares.


-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Jim Brown
Sent: Thursday, June 21, 2018 4:23 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Seems That 6 Meters is Some What Open

On 6/21/2018 1:03 PM, ANDY DURBIN wrote:
> So what is the the magic set of circumstances that opens a 6 m path
between AK and AZ?

It's important to understand how E-skip works. It's called "sporadic E" 
because it depends on sporadic activation of the layer for reasons that are
not understood by me. Propagation from E-skip is often "spotlight" 
in nature, especially when more than one hop is involved. We can work
"single hop" when the ionized cloud is roughly midway between us and the
other station; for two or more hops, at least two ionized clouds must line
up -- that is, ground to cloud one to ground to cloud two to ground. With
double-hop Es, it's common to be able to work stations within a radius as
small as 50 miles. And then one or both of clouds moves and a different
radius is illuminated.

Yesterday, for example, from here near San Francisco, stations 50-100 miles
E of me were working China, and stations in TX and OK were working JA. I
heard none of it. But at various times, a single skip cloud provided a path
down to San Diego and into XE, another into AZ, S NM, and S TX. That was all
before noon. Eventually I started seeing the SE US -- AL, FL, SC, GA, NC.
Toward evening, we started seeing (and working New England and the upper
Midwest (8-land). And so on. VT was there for perhaps an hour, then gone.
Same for RI. VE3 was there for about an hour.

After dinner, I returned to the shack to see a screen full of JA. It was
roaring for at least an hour -- but around 10:20 PM local, it quickly faded.

A great place to see (and study) this is this map. It stays in my browser
during Es season (roughly May to July in NA). Once in a while, click on the
<MUF ES> all the way to the right above the map.

https://www.dxmaps.com/spots/mapg.php?Lan=&Frec=50&ML=&Map=NA&HF=&DXC=ING2&G
L=

73, Jim K9YC

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