[RFI] TinySA as an RFI research tool

[David Eckhardt]

The Tiny SA is typical of even expensive spectrum analyzers of the past,
even HP.  They came without a built-in preamp and the noise figure was
typically 18 to 22 dB.  They needed a preamp, external.  Even the current
Rigol SA with its internal preamp exhibits roughly a 5 dB noise figure.
One problem with a preamp on the TinySA is intermod which the far more
expensive HP gear did generally not have a problem with.  I've read posts
addressing this problem with the Tiny when connected to a "real" antenna:
intermodulation between the received signals most times becomes a problem.
I have not yet tested my Tiny SA specifically addressing the intermod
issue.

Dave - W0LEV

On Thu, Jun 17, 2021 at 2:57 AM Hugo Loranger <ve2_ugo at hotmail.com> wrote:

> Hi,
> What do you think of TinySA as the main tool for RFI research in order to
> intervene effectively instead of a simple portable HF radio?
>
> 73!
>
> Hugo
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-- 
*Dave - WØLEV*
*Just Let Darwin Work*