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  • 1 Post By DaFoxGrey
  1. MPG Vancouver's Avatar
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    Default FM Radio Bleeds into Audio

    Has anyone else noticed? During quiet passages either in Audible (Android App) or bPod (Native App), I can hear a radio station. I'm playing the audio through the Z30 headphone jack and into an AZUR amplifier. When I first noticed this, I thought it was due to noise from outside my window. I've since confirmed the sound does come from the speakers connected to the amplifier. I haven't been able to identify the radio station's FM frequency, but it is definitely a radio station (and not the one I've last tuned to - 88.1, CBC Radio 1 Vancouver).

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    I had not noticed that.
  3. timboalogo's Avatar
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    Does it also get radio station interference if you're playing music from the Z30, rather than streaming through an app?

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  4. saint613's Avatar
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    Do you live near a transmission tower for a local FM station? I had someone complain their PC that they PC was broken and when I disconnected their speaks the speakers still picked up the radio station. All I said was that **** is going through your head...move.

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  5. MPG Vancouver's Avatar
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    Quote Originally Posted by timboalogo View Post
    Does it also get radio station interference if you're playing music from the Z30, rather than streaming through an app?

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    I don't usually play music. However, Audible and bPod don't stream. They play from a locally stored file. So that would be the same as playing music.

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  6. MPG Vancouver's Avatar
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    Quote Originally Posted by saint613 View Post
    Do you live near a transmission tower for a local FM station?

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    No, transmitters are many miles away.

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  7. timboalogo's Avatar
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    Quote Originally Posted by MPG Vancouver View Post
    I don't usually play music. However, Audible and bPod don't stream. They play from a locally stored file. So that would be the same as playing music.

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    Understood. Well, my Z30 doesn't seems to have this issue with the native music app or Neutron. I wonder, do you have a bluetooth device you could try that connects to your stereo to see if that also bleeds a radio station?

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  8. MPG Vancouver's Avatar
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    Quote Originally Posted by timboalogo View Post
    Understood. Well, my Z30 doesn't seems to have this issue with the native music app or Neutron. I wonder, do you have a bluetooth device you could try that connects to your stereo to see if that also bleeds a radio station?

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    I don't have a BT device that could receive from the Z30 and then output via a headset jack to the receiver. However, I do have Neutron on my Z30 and will try playing an audio file to see if I can still hear the radio during quiet passages.

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  9. sgt_snacks-64's Avatar
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    I had this issue many, many, many years ago (like, windows 98 era). When I used headphones I could hear the faint chatter of people. As I was on Dialup I thought it was people's phone calls, but I believe it might be to do with the actual cable. The Z30 uses the headphones as an FM Antenna, so it's somewhat plausable?

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  10. DaFoxGrey's Avatar
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    Other possibilities:
    • You or someone near you has a "rebroadcaster" on some device, such as a satellite radio receiver or home wireless audio system, and it is causing the interference.
    • While the main radio transmitter tower may been many miles away, a local repeater may be much closer.
    • Your amp and speaker are not shielded enough and are acting as a simple AM/FM receiver, bleeding the radio station audio, try and get some ferrite chokes for the cables. Try putting the amp in a different area of your home to see if the interference increases or decreases.
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  11. MPG Vancouver's Avatar
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    Quote Originally Posted by DaFoxGrey View Post
    Other possibilities:
    • ...try and get some ferrite chokes for the cables.
    Good idea. I will give this a try and let you know. (I'm out of town, so it will be a week before I can report back.) Thanks.

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  12. timboalogo's Avatar
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    Quote Originally Posted by sgt_snacks-64 View Post
    I had this issue many, many, many years ago (like, windows 98 era). When I used headphones I could hear the faint chatter of people. As I was on Dialup I thought it was people's phone calls, but I believe it might be to do with the actual cable. The Z30 uses the headphones as an FM Antenna, so it's somewhat plausable?

    Posted via CB10
    Yeah, that's what I wad thinking. Possible bleed through of the Z30 FM receiver due to the audio out also being used as an antenna. Is it possible....?

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