Understanding Pressure: Barometric vs Station

[NWmissouriman]

You'll have to excuse me in advance for making this a drawn out post.

When using Applied Ballistics and a Skymaster SM28:
-What type of pressure is my SM28 giving me?
-What type of altitude is my SM28 giving me?
-Do I need to check or uncheck the "pressure is absolute" box in Applied Ballistics when using it with my SM28?
(I know this would be easier if I had a Kestrel, as that seems to be the preferred choice, but I don't)
-Does anyone have any easy to understand reference to help understand the different types of pressure so I can make sure I make the correct inputs?

The AB and SM28 are primarily a back up to my G7, but I'd like to know I'm using the correct inputs when I use it. I thought it would be nice to be able to utilize both due to being able to input specifics for wind. Any and all help would be appreciated. Thanks!

 

[kcebcj]

Take a look at this. Will help some.

Barometric Pressure and Ballistic Software

 

[NWmissouriman]

^^^^Thanks for the link. There's some very useful information in there. Now I just need to read it about ten more times.

 

[Canadian Bushman]

Kcebcj
Thank you that was a well written, informative link

I use the weather undergroud app on my phone to help keep track of conditions near my location.