August 26, 2004

What am I doing taking this apart? This is the battery module on my Lightspeed headset. I'm basically tired of having to deal with the ON/OFF switch. I have an R25XL and R20XL, and both have the automatic shutoff feature, which works great. I've been getting anywhere from 50 to 75 hours on a set of alkaline AA batteries. I can't complain about longevity. But I can complain about the fact that every time I go flying, I have to turn these off and then on again -- assuming I left them on the last time I flew and let the auto shutoff kick in. I wish they had an auto ON as well as auto OFF. That would kick butt...and I'd be doing something other than futzing with these right now, that's for sure. But I'm starting to think about eliminating these battery pods from the setup.

I called Lightspeed and talked to a tech there. They said they have kits available that can turn their 3G series headsets into "panel powered," but that's not available for the old XL series headsets. I kept asking him, "So there's NO WAY that I can convert these into a panel powered setup?" Finally I told him I'm a homebuilder and that I can do all my own wiring, and he opened up like a flower in springtime. "Oh, well I can tell you exactly what all the wires are..." You bet..gimme, gimme.

Here's what I was told, and it refers to the wire bundle going from the battery pod up to the headset. I don't intend for this to be a reference, but I may as well share what I was told...I can't vouch for the accuracy of this information.

Color Function
White Right Audio
Yellow Left Audio
Red +12 volts
Green -12 volts
Blue Auto Shutoff
Orange Mic Hot
Black Mic Ground
Shield Common Audio Ground

I figure at some point I'll wire power back and up to the headset jacks, which are at the top of F-706 (baggage bulkhead). We'll see. Since it would require me to remove all sorts of cover panels to get that wiring done, I think I'll wait until my condition inspection when I gotta take all that crap off anyway. It's a pretty major ordeal.

Tonight at sunset I went up and flew for a while. My intention was to log sensor data for the Dynon. I had hoped that the D10 would "misbehave" on this flight, so I could catch it in the act while recording data. Well, it couldn't have cooperated any more than it did -- the thing was all over the place. Right after levelling off at 2500' under the class C veil above, the D10 started leaning to one side (I forget which side, it hasn't been consistent, put it that way). I was just getting to the outskirts of the Ontario class C, so I gave a sharp pitch-up and "marked" the data at that point. Doug at Dynon had asked that I do this, marking the data with an abrupt attitude change, so that he and his engineers could tell where I was seeing the faulty behavior. I climbed up and flew around for a while and tried different things, and nothing I tried specifically triggered the issue, but it sure kept doing bad things here and there -- always leaning to one side or the other erroneously. At some points, the compass reading wagged noticeably. The deviation was never more than a few degrees, but it was always enough to notice. Each time, I sharply pulled the nose up and marked the data.

After the flight I zipped and emailed the huge data log file to Doug. Keep clicking through if you want to read about the trials and tribulations...

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Dan Checkoway ()