Subsurface GF variance

[mcpowell]

Please forgive me if this has been answered, I've been away awhile. I did a quick search, but not really even sure how to ask this properly.

Do you see how the GF low and High shows GF 45/95 on the left? This is the setting of my Teric. And then do you see how the GF in the top middle of the dive profile graph shows GF 40/85?

Is it supposed to be this way?

It seems the GF of 40/85 is set in the preferences menu of Subsurface (File/preferences/Tech Setup). But once that is set, it always shows the same GF profile for every dive (above the profile) regardless of my dive computer's setting.

Is this an oversight, or should it be this way?

BTW, this is most certainly not meant to be a negative for Subsurface. I really like the software and am very thankful for its availability.

 

[Belzelbub]

Do you see how the GF low and High shows GF 45/95 on the left? This is the setting of my Teric. And then do you see how the GF in the top middle of the dive profile graph shows GF 40/85?

Is it supposed to be this way?

It seems the GF of 40/85 is set in the preferences menu of Subsurface (File/preferences/Tech Setup). But once that is set, it always shows the same GF profile for every dive (above the profile) regardless of my dive computer's setting.

Is this an oversight, or should it be this way?

Yes, I believe it's supposed to be that way. Subsurface basically calculates the NDLs, ceilings, etc. using Buhlmann (or I believe VPM is also an option) at the GFs set in Subsurface. I noticed this first with an Oceanic computer running DSAT. When I downloaded in Subsurface, I noticed a dive that had a noticeably different NDL between DiverLog+ and Subsurface.

I can't remember where exactly, but there might be a toggle to show both the computer calculated NDL and Subsurface calculated NDL in the info box.

 

[dflaher]

I know this thread is a couple of years old, but I am not able to see "GF" in the information box as displayed above in post #1, only "Surface GF". I have the Deco information button toggled on. Thanks.

 

[MrChen]

You can configure this in the software preferences.

 

[dflaher]

Thanks @MrChen but perhaps I should have been clearer. I was looking to see my GF(99) along the dive by moving my mouse along the graph and watching the info box.

I submitted this question on Subsurface's forum and their response was that, because of my profile and my use of EAN 32 my GF was not a "noticeable value" due to my nitrogen loading.

 

[MrChen]

I hadn't read this thread before. I actually was replying to the zombie question from 2 years ago. I suggest creating a new post in order to gain the appropriate attention.