Hi Dan,
I remember seeing the list of checks to make regarding knockoff clones,
and even remember a few of them: to wit:
1. Comes in molded packaging, not poly foam. Check!
2. Has the internal shielding. Check!
3. Passes all the self tests, including 7 & 8. Check!
I had high hopes of moving the birdie off 10 MHz by changing the IF
frequency
setting, but this did no good. I'd sure like to see a detailed block
diagram, but
do not know where to look.
I also tried turning on the "spur eliminator", which did help by several
dB, but
my birdie still sits a few dB able the displayed noise floor in the
narrowest
available resolution BW of ~ 3 kHz.
So, for the moment, I'm out of ideas.
Thanks,
Dana
On Sun, Jan 17, 2021 at 5:21 PM Dan Kemppainen
wrote:
> Dana,
>
> Just an FYI. Apparently, there are knockoff clone copies of the TinySA
> out there. (Yes, making a knockoff clone of a $50 spectrum analyzer is a
> thing, go figure!)
>
> Apparently, these have substandard performance, and a host of
> issues/concerns. I ran into this on the TinySA web site. They have some
> hints on how to detect if you have a clone or not. Might be worth
> looking into to see if you have a sub-par copy.
>
> Dan
>
>
>
>
> On 1/16/2021 12:00 PM, time-nuts-requ...@lists.febo.com wrote:
> > Date: Sat, 16 Jan 2021 05:45:19 -0600
> > From: Dana Whitlow
> > To: Discussion of precise time and frequency measurement
> >
> > Subject: Re: [time-nuts] Leakage, tinySA
> > Message-ID:
> >qrjlg-bw68wgdahmlhe9qulpupijuqedapz...@mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > Another data point: My newly-received TinySA has a big birdie at 10 MHz,
> > which is a
> > disappointment since I had hoped to use the unit as a sniffer to track
> down
> > leaks in my
> > 10 MHz distribution system. This birdie in the TinySA persists even when
> > nothing is
> > connected to the input and does not vary in amplitude when I move around
> > the house,
> > or with time while I'm sitting still with the unit.
> >
> > I, too, received no manual.
> >
> > Dana
>
> ___
> time-nuts mailing list -- time-nuts@lists.febo.com
> To unsubscribe, go to
> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.
>
___
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to
http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
