Spektrum DX7 Buzz question - Page 2 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 03-31-2010, 09:48 AM   #11
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Re: Spektrum DX7 Buzz question

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Well, I had a chance to have an ear near my radio last night while I was flying with my brother and guess what? I CAN hear the buzzing, but only when I got my ear real close to the Piezio speaker. Then I had a listen to my brother's DX7 and it too made a buzzing sound. While I have never heard mine before, he said that he has heard his before.

What I found interesting was mine was making a very low pitched buzz, which was hard to hear unless I was real close, whereas my brothers was making a louder higher pitched buzz that could be heard from a little further away.

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Old 03-31-2010, 10:00 AM   #12
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Re: Spektrum DX7 Buzz question

Its the voltage regulator that is making the noise.
If you were to do the regulator upgrade to the aftermarket switching regulator, the noise goes away. You also get extended run time from your transmitter battery as well.

The buzz is normal, even the DX3 car radios use to have it.
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Old 03-31-2010, 03:16 PM   #13
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Re: Spektrum DX7 Buzz question

that makes sense, The DX6I runs on four cells, so no buzzing regulator.
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