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Excuse me, I meant to say - the HDX/with Dynon ADS-B receiver can send traffic & weather data to the GPS 175 , but it already sends it to the HDX, so I don't need it to also be sent to the GPS 175.

I chose not to wire the RS232 port up, since I already have Dynon ADS-B In receiver.

Hah! They're my "work on the plane" pants... and the epoxy resin doesn't wash out...

I have modified the wiring as you outlined in diageam G, and there was a noticeable improvement in both the low, fully counterclockwise end (it's now dimmer than it was), and in the high (full clockwise) end (it's way brighter). Thanks for your time in helping with this. I would never have...

On page 12-5 of Skyview installation manual it says: For each module, Set INPUT1 to the type of device connected to the SV-ARINC-429’s ARINC-429 RX 1 A and B inputs, any of GPS 1, 2, 3, 4 or NAV 1, 2, 3, 4. Optionally, you can specify a “friendly” name for each navigation source using the...

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...