Jump to content
Sign in to follow this  
FlyingMonkey

Electrical Noise Abatement

Recommended Posts

Hey all...

Since I recently installed the iFly 740b in my panel, I'm having some increased electrical noise through the headsets.  Nothing horrible, but the problem has two components:

1) Increased crackling and popping through the headsets, like little bursts of static.

2) A faint, regular chirping, almost like an electrical pulse.  Engine noise drowns it out above 4000rpm, otherwise this might drive me crazy.  This is definitely noise from the iFly unit itself.  The sound was evident on the ground with the master avionics on and the engine off, and when I powered down the iFly unit the sound stopped.

I will of course re-seat everything and check all of the connections.  But I'm no electrical expert, so I'm asking for anything in particular I should check, or strategies that will help reduce electrical sounds.  Is this the time to install the larger capacitor?  Roger, do you still stock those?

Thanks for any assistance.

Share this post


Link to post
Share on other sites

Andy, I would try a ground loop isolator in the audio out on the GPS. They are fairly in expensive, and it wont hurt anything. Search the old post for alternator whine, and you will find one that I found a few years ago that fixed a problem on a CTSW with a Garmin GPS.

Share this post


Link to post
Share on other sites
1 hour ago, Tom Baker said:

Andy, I would try a ground loop isolator in the audio out on the GPS. They are fairly in expensive, and it wont hurt anything. Search the old post for alternator whine, and you will find one that I found a few years ago that fixed a problem on a CTSW with a Garmin GPS.

Thanks Tom, I ordered one.  Hopefully it's that simple!

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...