Ham Radio Homebrew Informations: Re: [HamBrewers] Re: What could be the source of this QRM? [1 Attachment]

Saturday, January 7, 2012

Re: [HamBrewers] Re: What could be the source of this QRM? [1 Attachment]

[Attachment(s) from Prasad Agrahar included below]

Rajesh

Here is one article that may help.

-Prasad VU2AEA

From: Prasad Agrahar <ad_prasad@yahoo.com>
To: "HamBrewers@yahoogroups.com" <HamBrewers@yahoogroups.com>
Sent: Saturday, January 7, 2012 9:47 PM
Subject: Re: [HamBrewers] Re: What could be the source of this QRM?

Rajesh

The noise can be from a source near you. There have been many articles in QST on how to locate different types of noise sources. If you are a member of ARRL you will be able to download them.

-Prasad VU2AEA

From: Rajesh K <kc2kby@airtelmail.in>
To: HamBrewers@yahoogroups.com
Sent: Saturday, January 7, 2012 8:51 PM
Subject: RE: [HamBrewers] Re: What could be the source of this QRM?

Thanks Anil. Good work. Sounds like a digital signal. I'll continue the research. It is sporadic and not occurring on daily basis.

Rajesh.

From: HamBrewers@yahoogroups.com [mailto:HamBrewers@yahoogroups.com] On Behalf Of Anil Kumar
Sent: Saturday, January 07, 2012 10:51 AM
To: HamBrewers@yahoogroups.com
Subject: [HamBrewers] Re: What could be the source of this QRM? [2 Attachments]

[Attachment(s) from Anil Kumar included below]

Hi Rajesh,

I often noticed this qrm. I live in Bangalore. Occurance feels quite sporadic do us SWLs. Not sure about them belonging to any specific SW spectrum.

I have isolated(DSP) the qrm from your sample and attached here for possible research.

Regards,

Anil

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Attachment(s) from Prasad Agrahar

1 of 1 File(s)