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Reminds me of the old WATFIV IQ0 error. You'd walk over to the error code chart posted on the wall and it would say “IQ0 - Student programmer has insufficient knowledge to use this system”. If you understand this post, you are an old fossil like me. V

Here's the procedure: 1) you will need access to the static system.  I use the alternate static port in the cabin that has a 1/4 NPT fitting that can be removed. Some shops can use your static ports, but it's more difficult. 2) boot and warm up the SV and configure the transponder to turn off...

There is a much easier way to calibrate airspeed.  Simply stabilize your indicated airspeed then engage the autopilot.  Do a complete rate 1, 360 degree or more turn using the autopilot 180 turn function. Also, note the time displayed on the screen. Do this at several different airspeeds. On...

I agree. There must be something else afoot that is required for certification. My guess is that a complete, traceable QA system must be implemented corporately, and that system is all about documentation standards and procedures. That must be established (and adopted) before new software and...

I highly recommend NOT using VDO senders.  I've had to replace a fuel pressure sender after 200 hrs on my 9A and 100 hrs on my Rocket.  I disassembled one and found that the wiper tends to wear the resistance coil in one spot (presumably the steady state pressure).  It then gets stuck. I just...

So you want Dynon to debug an electrical system on an aircraft that you didn't build and has no schematic? Good luck with that. I'd pull the screens and bench test them first by hooking up a power supply. You probably have bad wiring or a bad breaker. Until you can establish that it's a...

I would recommend that you follow this thread http://www.vansairforce.com/community/showthread.php?t=148638&highlight=On-speed It provides a Naval Aviator's implementation of AoA. It's a hardware/software project that may be fun to implement. Superior to my implementation. Vern

OK, let me have at it: In my opinion, the audio system is superior to a glareshield indicator under most circumstances.  For Visual approaches, your eyes should focus outside the aircraft, not glued to an AoA indicator, no matter where it is mounted. The exception to this is if you have a tail...

This is a contradiction... if you are shorting the wires for this test, there are still at least two connections involved... check the dsub pins in the main EMS connector by removing the connector shell for inspection. I had two harnesses where a pin was not fully inserted. If this checks out...

Not so easy with large packages, and shipping clerks always make the mistake of us the USPS International Priority Mail, which is a minimum $25 (US) charge even though you tell them over and over again just to use first class mail for the bag of screws. Also, the Priority Mail actually takes...

I've found a freight forwarder in Washington State so that American companies don't have to deal with figuring this out. I pay the extra fees and clear customs myself and it's much cheaper and faster. Vern

Oxide films (corrosion) on electrical contacts act as diodes and will rectify RF signals. This rectification demodulates the RF and is audible as noise. In the olden days, we used a crystal of Galena (lead ore) and a piece of wire called a cat's whisker to make a crystal radio set that...

My taxi camera now shows a blank blue screen. Before I begin tearing everything apart, i'd like some advice.. is the camera fried or is it the video adapter? My guess is the camera because of heat. Vern

14 Volt 'production' version, fully functional.  This version adds an FTDI serial-to-USB connector, connectors for WiFi or Bluetooth or display modules, 1 amp 5V power supply and a 3 Volt power supply to make it 100% Uno signal compatible. Used a 4-layer board to simplify the addition of more...

Isn't that a copilot is for?

Not a permanent fix. I've replaced all of the fast-ons firewall forward with barrel connectors. Not perfect, but much better. The problem is that we are measuring microvolts here and any corrosion leads to an oxide film that produces a semiconductor junction. This messes with the...

Here's a breakdown of the options: 28 Volt, field configuration (includes case, primary input protection, etc.) $68 14 Volt, field configuration (includes case, primary input protection, etc.) $57 28 Volt, lab configuration (no case, only secondary input protection) $52 14 Volt, lab...

Arduino compatible controller for SkyView-Group Bu I've completed the Beta trials for my Arduino Compatible aviation controller (Falcon-AVR). One application involved 1600 lines of C code to implement an auto-trim and flaps controller, which is now flying, and the second was for an instrument...

Here's a link to a datasheet http://www.mccsemi.com/up_pdf/PN2907A(TO-92).pdf That should give you the info you need for wiring, but you'll be dealing with soldering and mounting.  There should be some guy nearby nicknamed 'Sparky' who can help you. What I would do if it were me would be to...

The SV can drive up to six RockRack switches directly. For more than that, the buffer circuit I drew should work, for up to 20 or so switches. Vern