This new thread relates to the thread regarding the relocation of the Dynon data plug due to transfer of noise to the headsets and also noise due the electric fuel pump.
The noises that I hear in the headsets are mainly:
1. The engine generator/alternator hum. Very noticeable when taxiing, especially when using a noise cancelling headset. Not really noticeable when in the air when covered up by general cockpit noise. I have tried 4 different headsets, Lightspeed Zulu, Clark passive, Clark ANC, AvCom passive. They all pick up the generator to some extent when taxiing. It should be possible to put a noise filter on the voltage regulator to kill this noise, but I don't have to knowledge on how to do this.
2. The electric fuel pump causes a ticking sound in the headset when you have a music source plugged into the music jack. Again, this is most noticeable when the cockpit is relatively quiet like when taxiing. Van's said that they are working on a noise filter for this similar to the noise filter on the autopilot pitch servo. I have not seen that this is available yet. When flying solo I can plug the Ipod directly into the Zulu when I want music, and not hear any fuel pump noise. If you have a passenger and you want to share music you pretty much have to plug into the music jack. If you have headsets with Bluetooth, that may work but I have found the Bluetooth to be kind of flackey and not worth fiddling with, especially when flying an airplane.
I have not noticed any noise in the headset that I can attribute to the Dynon data plug (I have the old style). But it would have to be bloody loud to hear it in flight.
I would be interested to hear what noises others may be hearing in the headsets.
Tony
The noises that I hear in the headsets are mainly:
1. The engine generator/alternator hum. Very noticeable when taxiing, especially when using a noise cancelling headset. Not really noticeable when in the air when covered up by general cockpit noise. I have tried 4 different headsets, Lightspeed Zulu, Clark passive, Clark ANC, AvCom passive. They all pick up the generator to some extent when taxiing. It should be possible to put a noise filter on the voltage regulator to kill this noise, but I don't have to knowledge on how to do this.
2. The electric fuel pump causes a ticking sound in the headset when you have a music source plugged into the music jack. Again, this is most noticeable when the cockpit is relatively quiet like when taxiing. Van's said that they are working on a noise filter for this similar to the noise filter on the autopilot pitch servo. I have not seen that this is available yet. When flying solo I can plug the Ipod directly into the Zulu when I want music, and not hear any fuel pump noise. If you have a passenger and you want to share music you pretty much have to plug into the music jack. If you have headsets with Bluetooth, that may work but I have found the Bluetooth to be kind of flackey and not worth fiddling with, especially when flying an airplane.
I have not noticed any noise in the headset that I can attribute to the Dynon data plug (I have the old style). But it would have to be bloody loud to hear it in flight.
I would be interested to hear what noises others may be hearing in the headsets.
Tony
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