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I found this, on Wikipedia: One of the advantages of the potential divider compared to a variable resistor in series with the source is that, while variable resistors have a maximum resistance where some current will always flow, dividers are able to vary the output voltage from maximum (VS) to...

Where pin 2 is the one commonly called the slider? Right now, as I have it wired, I think I have pin 1 on the pot going to pin 25 on the Skyview HDX, and 12 volts going into the slider. I will need to reverse those to do the wiring as you recommend. But I confess, I still don't understand...

Okay, but, the way you have it depicted, the impedance to ground on the right side is a constant 2.4 ohms, the way I was envisioning it, the impedance on the path to ground would be the total impefance acriss the entire element, ( 2.4 ohms), less whatever impedance is drawn by the other, (left...

I hooked up an ohmmeter to my potentiometer, and measured the impedance across the terminals as I rotated the knob. The impedance across terminals 1 & 3 was a constant 10k. The impedance across 1&2 varied from zero to 10 k as I rotated the knob clockwise, and across 2&3 it varied from zero to...

Excellent diagrams! Thanks! But your circuit "G" is different than what I thought. I am under impression that the slider terminal is the one that brings the full 12 volts into it, and the two other terminals on the pot are attached to the ends of the resistence element. That way, the pot acts...

I apologize, but I still don't get it. If all you have is a resistance, (like a rheostat), in series with a 12v battery, and a load (like a bulb), the total voltage drop around the entire circuit must be zero, so the voltage drops across the resistance and the load must add up to 12 volts...

Two questions: In Dynon Install manual, pg 12-5, it says to set INPUT 1 to the type of device, (any of GPS 1, GPS 2, ... , NAV1, NAV2, ...). Which should I use for the GPS 175, a GPS, or a NAV? Does it matter? Secondly, I wonder about the "Allow Auto Switch: Yes (Label 100P) setting - what...

So I can attach the third wire of my potentiometer to aircraft ground and it should be consistent with the scheme you describe. But I don't understand what you mean by "Using only two wires, you take the strip completely out of the equation. " How so? It is then effectively the same as a...

Okay it's done, and it works. But I am left with some questions. First of all, I learned what a potentiometer is, and why they have three leads, instead of just two like a rheostat. A potentiometer has three leads because it's just really two rheostats in one. Where a rheostat has an input...

Marc, Yes, it was definitely not something i want to repeat. And I was in VMC when it occurred. I can imagine a very different outcome if it had happened when IMC on an approach...

Marc, I found your concern about the A/P intriguing. Might I ask, in your opinion, do you not trust that you can override the servos in that situation? I did have an incident about two years ago, right after I first installed the autopilot, that might be relevant. I had installed an A/P...

Thanks! Yes, all I am doing is dimming the Skyview HDX display. I have very limited panel space, and the SV-KNOB-DIMMER is too large to fit anywhere. And, at just $10, the potentiometer from Amazon sure beats the price of the SV-KNOB-DIMMER from Dynon ($90).

Yes, I will try the 10K one first, it's only $10 from Amazon. Dynon Tech support is shut down for the holidays until early January. Thanks for your help! - and Happy New Year!

Rhino, I'm getting a pot to use for this, but they come in a variety of maximum resistances, from 100 ohms up to 100k ohms. What size should I use? Assuming that when the pot is all the way counter-clockwise, it is at 0 ohms and will output 12 volts, I would imagine that as you turn it...

Marc, Your last post, (as well as Swatson999s), as you both suggested, does indeed clarify things. My mistake was assuming that SA approach plates are the same as Garmin Approach plates. If you actually made that point in an earlier post, and I missed it or did not get the message, again, my...

Marc,⁶ Yes, you did answer several of my questions, and I thank you that. I guess I had three questions in my original post. First - how does it work? Specifically, if the same approach plate was loaded in SA and in the GPS175 Which would it use? Second if it works as it does (as you...

I'll only say it once, and then, if anyone else posts irrelevant comments here, you can continue among yourselves. The GPS175 IS a certified IFR navigator. So any and all comments pointing out the obvious fact that Skyview, with only the SV-GPS-2020, is not a certified IFR navigator either did...

Marc, Thanks, I was afraid of that. Next question, you may not know, but will drive my next steps. Is the reason that SkyView is coded this way simply because when originally released, it did not have a certified IFR navigator, and therefore had no way to utilize the capability to parse the...

I have Dynon HDX, SV-GPS-2020, Dynon autopilot, and a Garmin GPS175 certified IFR navigator hooked up to the Skyview with SV-ARINC-429. I subscribe to Seattle Avionics with for all IFR data, including all IFR approach plates. Since all published approaches are published with expiration dates...

Ken, As I think I understand it, I think what you were trying is not possible. The Vega/N16 system, in Scan mode, can still only send one signal, (from the primary nav source), over the SL30 interface to Skyview. The scan mode just causes the N16 to rapidly switch back and forth from the...