[SixClub] "Radio-Active" Solar Flare

[K8RI on six]

On 2/14/2011 12:30 PM, Pete wrote:
> Probably not very effective under Au conditions, but anything is worth a try, I suppose. Detecting with Weak Signal optimized modes is not the same as overcoming tremendous noise generated by an authentic Au event.
An authentic Au event may be weak, or strong, it may only e effective in 
the Northern edges of the Northern most states, or and extreme event may 
extend clear to the tropics (very rare).  Au is most often like a 
modulation superimposed on the signals.  It may be right down to the 
receiver's nose threshold, or it may be S5 or more. CW is far more 
effective than SSB in either case.  SSB can be almost impossible to 
understand in stronger events.

The one thing they all have in common is you point your beam North, or 
in a Northerly direction usually from somewhere between NE and NW even 
to work stations to the South.  The "buzz" varies widely in strength, 
but you *always* have have to point North although the weak signal off 
the back of a beam might be reflected.

>   CW is hands-down, THE most effective mode in that environment.
> Noise levels of S9+60db over can be common during active Aurora.
I don't recall ever having heard it that strong even during the last 
sunspot cycle peak  from Central Michigan.  OTOH I have heard a mass of 
signals that strong due to Au reflection.  I run 7L on a 29'8" boom @ 
115'  or was until I get it back up.
> I personally prefer watching a good show than trying to play radio during one. They're rare at these latitudes, but unforgettable if you're fortunate to catch one.
>
The band will be a busy as a it gets with a major DX opening.

73

Roger (K8RI)