Solar Flux Values: Interpreting Of ?
 

Hi,

Have read up a bit on propagation, and the Solar Flux values.

But what i haven't been able to get a good feeling for are the numerical
magnitudes, and the
meaning of:

e.g., what value of solar flux value would be considered "good," ? Higher
better ?
A & K values ? Lower better ?
Why ?

How often during the day, typically, are there "meaningful" changes, or is
it a weekly thing ?

etc. ?

A brief explanation of all of this would be most appreciated.

Thanks,
B.

Solar Flux Values: Interpreting Of ?
 

"Robert11" wrote:

Here is a start. http://www.kc4cop.bizland.com/RADIO__A__K_INDICES.HTM


Hi,

Have read up a bit on propagation, and the Solar Flux values.

But what i haven't been able to get a good feeling for are the numerical
magnitudes, and the
meaning of:

e.g., what value of solar flux value would be considered "good," ? Higher
better ?
A & K values ? Lower better ?
Why ?

How often during the day, typically, are there "meaningful" changes, or is
it a weekly thing ?

etc. ?

A brief explanation of all of this would be most appreciated.

Thanks,
B.

Solar Flux Values: Interpreting Of ?
 

e.g., what value of solar flux value would be considered "good," ? Higher
better ?
A & K values ? Lower better ?
Why ?

For A and K values, the lower the number, the better. The values typically
vary with the strength of geomagnetic activity on the Sun's surface.

Generally, propagation conditions are best when the A index is 15 or lower,
and the K index is 3 or lower.

Besides causing auroral activity, high geomagnetic field conditions can
affect the electrons in the ionosphere, reducing the maximum usable
frequency (MUF).

Hope that helps?

Jackie

From OP: SF Number ? Solar Flux Values: Interpreting Of ?
 

Hi,

Thanks for info and links.

What about the SF numnber ?
What's a good value ? Higher the better ?

Bob

--------------------------------
"Robert11" wrote in message
...
Hi,

Have read up a bit on propagation, and the Solar Flux values.

But what i haven't been able to get a good feeling for are the numerical
magnitudes, and the
meaning of:

e.g., what value of solar flux value would be considered "good," ? Higher
better ?
A & K values ? Lower better ?
Why ?

How often during the day, typically, are there "meaningful" changes, or is
it a weekly thing ?

etc. ?

A brief explanation of all of this would be most appreciated.

Thanks,
B.