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Hissing X9303 2.4

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Old 08-14-2009, 02:31 PM
  #1  
Zafer
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Default Hissing X9303 2.4

Hi.

I have decided to move to 2.4 Ghz. and found (and bought) a second hand JR X9303 2.4H.

It seems o.k. It binds to the original JR 921 receiver. But it (transmitter) makes a hissing sound which is clearly audible when I turn it on (The sound is there during the operation).

Is this sound normal, or something is wrong with the transmitter? My old radio (Graupner MC-19) is silent...

Do you have any comments\ ideas?

Thanks and regards.

Zafer
Old 08-16-2009, 09:32 AM
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Zafer
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Default RE: Hissing X9303 2.4

Hi again,

Today I have flown with the new radio.

No casualties. So far so good.

Regards.

Zafer

Old 08-16-2009, 12:21 PM
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codimasta
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Default RE: Hissing X9303 2.4

[8D]I just converted a 9303 to 2.4 GHZ (Spektrum)..no problems..check inside your transmitter...you might have a snake enclosed...just joking!!!
Old 08-16-2009, 01:18 PM
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BarracudaHockey
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Default RE: Hissing X9303 2.4

The voltage regulator on that radio (and the DX7's) make an audible buzz if you have good hearing. No worries.
Old 08-16-2009, 03:53 PM
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airbusdrvr
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Default RE: Hissing X9303 2.4

I've had the X9303 for two years now and it has never made a single sound/noise[>:][:-]
Old 08-16-2009, 04:37 PM
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onewasp
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Default RE: Hissing X9303 2.4


ORIGINAL: airbusdrvr

I've had the X9303 for two years now and it has never made a single sound/noise[>:][:-]

Same here! But the gassers seem to be quieter too.
Age related hearing losses you know.

Actually the noise heard is an artifact of the packet rate.
At least that is what Paul told me.

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