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Re: Noise

 

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Looks like it is picking up some spurious from a switch mode device.

Check by switching OFF lights and other mains operated devices one by one.

Older CFLs may be suspect.

Raj

On 13/09/2022 9:23 AM, DEBAJYOTI DAS wrote:

It is uBITX V6, l am using 12 volt 7.2 Amp Exide Battery, SMPS not used
Debajyoti (vuelgt)

On Mon, Sep 12, 2022, 2:31 PM Raj vu2zap <rajendrakumargg@...> wrote:
Which model of Bitx is this ?

Sounds like some SMPS spurs drifting.

Raj, vu2zap

On 12/09/2022 1:58 PM, DEBAJYOTI DAS wrote:
> My bitx has fixed noise issue from 21.3180 to 21.3480 Mhz ,how to
> fixed that?noise. Attechment bellow
>
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