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Re: Topband: noise floor

To: Pete Parisetti <hb9dsu@gmail.com>
Subject: Re: Topband: noise floor
From: Art <k6xt@arrl.net>
Date: Sun, 18 Oct 2009 15:03:54 -0600
List-post: <topband@contesting.com">mailto:topband@contesting.com>
What receiver bandwidth? Its important to know for comparisons, the NF 
difference between a 3KHz SSB filter and a 300Hz CW filter should be 
10dB. Or you could normalize it to 1Hz.

73 Art

Pete Parisetti wrote:
> Hello everybody from a newcomer to the list.
>
> I have a question. I would like to understand if my suburban location is
> significantly more noisy than others or not. To do so, it is handy to have
> the noise floor measured in dBm - something I can do with my SDR 5000a. The
> value is around -82 dBm in conditions which I would call "bad" and around
> -90 when "good", measured with the TX antenna (inverted L, 17m vertical/23
> horizontal).
>
> Would anybody else with the same rig (or similar) share their numbers?
>
> Thank you very much in advance and 73.
>
> Pete
>
> ___________________________
> Pete Parisetti MM0TWX - HB9DSU
> for music, ham radio and more
> visit http://www.hb9dsu.com
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