Diver Dennis
Contributor
I have about 200 dives on my D9 with no problems. I solo a lot so I do have a back up Cobra, not wireless.
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My first purchase when I started diving was the Suunto Cobra (this was before the Vytec came out and long before the D9 became available). Having everything in one (SPG, Depth Guage, Timer, + computer) bothered me, so I added an analog SPG at the end of a hose. It dawned on me that the SPG by itself is only part of the equation, so I added to that a depth guage. Then I realized that the SPG and depth guage didn't fully help unless you also had a bottom timer. It was about then, as a new diver, that I started realizing how cluttered I was having yet another hose dangling off of me. Everytime I looked for my Cobra I was grabbing either my SPG or my Octo, and it was just stressing me out. So I removed the extra hose and along with it a stressor that I didn't need.Eskasi:I just got a D9 with wireless transmitter. Should I have a backup computer on me too? I have read that some divers are doing so.
I understand that perhaps one as a spare may be good....
geraldp:If your Air Integrated computer fails you always simply call the dive, get your buddies attention and then let him/her help you to the surface. This should work no matter where you are in your dive cycle, even if you're low on air or close to to your NDL. To me it doesn't make sense to spend an additional $700-$1000 for a proper backup just so you can spend a few more minutes on the bottom if your primary computer fails in the middle of a dive.
fppf:"It IS crazy to spend $700-1000 on a BACKUP computer"
Why? I just spent $5000 on a dive trip. Add a D100, Ikelite housing, Strobe, and all the other gear, whats another $700?
Karibelle:When it connects the next time, say when the air is turned on, isn't it the same code? I need you (someone!) to explain more about the transmitter problem... I have a D9, and on a recent trip, there were two other D9s on the boat. From the first day, each computer used a different code, and until one day when I changed mine on purpose, they stayed the same. For example, I was on 22, next guy was on 26 and third guy on 05.
What is the big deal? that's what I don't get. Every time I turned my tank off and turned it back on, I got the same code...
Note that I do carry an SPG. And you have to admit, the D9 is very sexy!
kari