RADIO & INTERCOME INTERFERENCE
in General Tech Discussion
13 years ago
RADIO INTERFERENCE:
TO THE POINT THAT MY PANEL MOUNT ICOM A-20 AND INTERCOME SYSTEM ARE USELESS WHEN MY 618 REAR MOUNTED ROTAX IS RUNNING.
PLEASE NOTE: FERITE FILTERS HAVE BEEN USED WITH 0 IMPROVEMENTS
POSSIBLE SOLUTIONS???????
1) Relocate the grounding block somewhere in the back of the aircraft which most of the grounding of the instruments and panel switches now are connected to and is located with in inches on the back of the instrument panel including the radio,
2) ELIMINATE THE GROUNDING BLOCK & Extent all above mentioned grounds into a shielded conduit and ground them all at the battery’s negative?? Battery is located at the rear of the aircraft.
3) Things to consider : I had heard that some instruments need to have their own separate grounds I may have some of these as the EIS for ex., Now if they are grounded into the battery’s negative will that create any problems??
4) Instruments on board or devices that are grounded: 2 strobes, navigation lights, landing lights, collision avoidance system, gps, panel mounted transponder with mode c, elt,
3 cigarette lighter sockets, EIS which is going bananas any time I use the push to talk switch on the radio, electric fuel pump, electric compass that is never correct due to the electrical interference. I don’t think that I left anything out, but having a general aviation panel mount radio and not being able to communicate even with the back seated passenger is a big disappointment, times came that I try to use a portable radio just to announce my intentions (knowing my above issues) and the receiving radio couldn’t even hear a word out of what I was saying due to the noise interference.
Gentleman? Can anyone assist?
Any consideration or input (before I start doing things) will be greatly appreciated,
Reghards
Yanis
TO THE POINT THAT MY PANEL MOUNT ICOM A-20 AND INTERCOME SYSTEM ARE USELESS WHEN MY 618 REAR MOUNTED ROTAX IS RUNNING.
PLEASE NOTE: FERITE FILTERS HAVE BEEN USED WITH 0 IMPROVEMENTS
POSSIBLE SOLUTIONS???????
1) Relocate the grounding block somewhere in the back of the aircraft which most of the grounding of the instruments and panel switches now are connected to and is located with in inches on the back of the instrument panel including the radio,
2) ELIMINATE THE GROUNDING BLOCK & Extent all above mentioned grounds into a shielded conduit and ground them all at the battery’s negative?? Battery is located at the rear of the aircraft.
3) Things to consider : I had heard that some instruments need to have their own separate grounds I may have some of these as the EIS for ex., Now if they are grounded into the battery’s negative will that create any problems??
4) Instruments on board or devices that are grounded: 2 strobes, navigation lights, landing lights, collision avoidance system, gps, panel mounted transponder with mode c, elt,
3 cigarette lighter sockets, EIS which is going bananas any time I use the push to talk switch on the radio, electric fuel pump, electric compass that is never correct due to the electrical interference. I don’t think that I left anything out, but having a general aviation panel mount radio and not being able to communicate even with the back seated passenger is a big disappointment, times came that I try to use a portable radio just to announce my intentions (knowing my above issues) and the receiving radio couldn’t even hear a word out of what I was saying due to the noise interference.
Gentleman? Can anyone assist?
Any consideration or input (before I start doing things) will be greatly appreciated,
Reghards
Yanis
