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My uAvionix Echo ADSB unit came with a single transmit/receive pole style antenna. It receives on both 978 and 1080 MHz while transmitting on 978 MHz. I would like to replace it with a ...

Got it, thanks Bob.
Reading this forum and the Connection gave me the courage to wire my plane myself, something I’ve never regretted.

Erich

I was able to work on this last weekend and found that there was indeed some voltage loss between main bus and master switch. Got that taken care of, got rid of the jumper between pins 3 and 6 on vol ...

Ok, will revise wiring to eliminate the pin 3 to pin 6 jumper. Did the wiring back in 2007 or so, and don't remember my reasoning for using the jumper, but I didn't make deviations from B&C instr ...

yes, I didnt see such fluctuations in the past, at least not as large. Ive noticed it recently because my EFIS warns me when voltage falls to 13 V.

I dont understand the logic behind the earlier p ...

No, when I measure voltage at the regulator end of the wire, but with it disconnected from the regulator, I see the full 13 V. When I reconnect the wire to the regulator and measure the voltage again ...

I have my RV-7A wired per Z-13/8. I sometimes observe rapidly fluctuating voltage, varying from approximately 13.0 to 14.0 V, as indicated on my EFIS display. I figured it was just a loose connectio ...

Right, and many believe that a battery DOES provide great benefit with respect to buffering electrical noise, so thought it would be important to clarify That Bob does not believe that to be the case. ...

--> AeroElectric-List message posted by: "user9253" <fransew>

In the mean time, as long
as you don't hit the alternator with a really BIG load
(which few system are cap ...

All makes sense to me Justin; I followed the Z-13/8 architecture as well on my RV-7A. Yes, original post was on the VAF forum. Just a bit surprised by the response from EFII.

Hello Bob

Over on another popular forum, there was recently a discussion on whether it was preferable to have an electrical system with two batteries or with two alternators. Having previously rea ...