BTW, I did purchase my 10MHz-"leaky" TinySA through R & L. Had I not had the clue that R & L was a reliable source, I would never have ordered one ot these things at all.
Tom, I don't walk around- I pedal around on a recumbent trike. Dana On Mon, Jan 18, 2021 at 5:20 AM Bill Notfaded <[email protected]> wrote: > Knock offs is part of the reason I posted the main US distributer earlier. > The software is basically open source so anyone could theoretically make > one. There's only one original manufacturer though. R&L Electronics is > the only sanctioned US distributer I'm aware of. Also they have the best > price in US you can find for obvious reasons. FWIW I don't have spurs at > 10MHz. > > Bill in AZ > > On Sun, Jan 17, 2021, 5:35 PM Dana Whitlow <[email protected]> wrote: > > > 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 <[email protected]> > > 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, [email protected] wrote: > > > > Date: Sat, 16 Jan 2021 05:45:19 -0600 > > > > From: Dana Whitlow<[email protected]> > > > > To: Discussion of precise time and frequency measurement > > > > <[email protected]> > > > > Subject: Re: [time-nuts] Leakage, tinySA > > > > Message-ID: > > > > <CADHrwpd2B=p= > > > [email protected]> > > > > 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 -- [email protected] > > > To unsubscribe, go to > > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > > and follow the instructions there. > > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
