开云体育

Yes, but very much cheaper than one visit to a Compliance Test Lab...:-)
Cheers...Bob VK2ZRE

Unfortunately it looks like your RF switch and LNA are damaged, if it is ESD damage it usually only damages the RF switch. Maybe you accidentally fed an RF signal that exceeded the power limit, you can refer to the wiki to replace the RF switch and LNA!

Most probably the input switch?
Soo the FAQ in the wiki for replacement type number
--

Close Rick. I've been using it regularly since January 2023 but have no idea when I last ran a SelfTest or LevelCal until after I updated the F/W yesterday.

Ooohhh, Jan '23? Sounds as though you're pretty much stuck with this puppy.?

You bought the TinySA, it waited for you to put it to work, you decided to install the latest and greatest f/w before getting to work, and the wheels fell off. Does that sound close to? what happened??

If you haven't cracked the case, didn't bounce the thing off a wall, and was reasonably careful with the SNA connectors and USB connector, all should be well. Based on comments seen here, it seems the TinySA's front-end doesn't cope well with ESD surprises. Hugen's comment points at the front-end taking a hit. Hopefully Erik catches up with this thread and gives some input. Overall, though, I think this is part of the movie where the doctor walks away, shaking her head as she leaves the patient's hospital room.?

73
Rick
KC3DOO

Regarding Hugen's question:

The only source I have that could overload the TinySA is my HP8643A which is capable of 19.9 dBm, so it is possible that I accidentally overloaded it with a 20dBm signal. Obviously not on purpose, but I can't rule it out.

Test screen shots attached.

Hi all and thanks for the suggestions.
I did a Clear Config and restest - no change.
I did buy it from R&L January 2023, so doubtful a clone.
I did NOT do a SelfTest right before updating firmware, so can't say that the update was a factor. Seems doubtful.
I may have damaged it at some point in the past year. Not sure how I can tell.
I've attached a pic of the Version page as suggested.

Can you provide pictures of other test failed items??SelfTest?3, 4, 14？?It is possible that the RF switch and LNA on the port have been damaged, have you input a signal that exceeds the limits?

Good advice - wish I'd thought of it. ;)

BTW, Mike, did you do a self-test and calibration?before updating the firmware? If you did, and the device passed, then the f/w update becomes suspect. If not... not so good.?

73
Rick
KC3DOO

Make sure battery is fully charged.
Do Clear Config.
Do Level Cal.
Try self test again and report back.

73

-Jim
NU0C

On Sun, 24 Mar 2024 16:47:08 -0700
"Mike Miller" <audiobymiller@...> wrote:

Hoping I'm doing something wrong, but my TinySA Ultra is not passing SelfTest or LevelCal.

I just updated the firmware yesterday without problem to v1.4-156-g4eb315d, and then ran a SelfTest and LevelCal. Neither would pass.
Most of the errors are Signal Level Critical (test 3,4,7,10,11) or Signal Level Fail (test 14).
The Level Cal reports "Signal Level Incorrect, Check cable". I tried three different cables and all had the same result.
I don't believe I have a clone as I have bought all my products (TinySA, TinySA Ultra and nanoVNA) from R&L.

Anyone have any suggestions?

--

73

-Jim
NU0C

At first blush, the symptoms suggest you have a clone. Please post one more photo, of the version page. Between the two case photos and the version page, Erik should be able to sort out clone/not clone for you.?

It's unfortunate to hear the device came from R&L, especially after my encounter with a clone from Amazon, and having a new unit on order from R&L. As my wife so sweetly pointed out, "how does R&L know they're getting valid devices?" I hate when she does that. ;D

Anyway, a) post the version screen, b) wait for Erik to pronounce a verdict, c) expect to have a chat with R&L about a DOA device, and (concurrently to a-c) d) hope I'm wrong about all of this.?

73
Rick
KC3DOO

Mike, there IS a "Definitive means" to identify bogus devices, but it has to remain classified to protect the design(er) of the copyright device. It may be impractical to post the requested photos before you purchase a used SA (not to mention the added demand of Erik's time) but that is how it has to be due to the lack of morality among the copy cats. Seems they don't care if they make money at it or not, must be the cheap thrill of mimicry??

Hoping I'm doing something wrong, but my TinySA Ultra is not passing SelfTest or LevelCal.

I just updated the firmware yesterday without problem to v1.4-156-g4eb315d, and then ran a SelfTest and LevelCal. Neither would pass.
Most of the errors are Signal Level Critical (test 3,4,7,10,11) or Signal Level Fail (test 14).
The Level Cal reports "Signal Level Incorrect, Check cable". I tried three different cables and all had the same result.
I don't believe I have a clone as I have bought all my products (TinySA, TinySA Ultra and nanoVNA) from R&L.

Anyone have any suggestions?

It's a Honor receiving a message from you Erik! I hope the fw solves the compatibily por sound technicians like me... (I have the standard model)

You are doing an awesome work for the community and for the humanity!

Regards from Spain

On Sun, Mar 24, 2024 at 07:37 PM, Andy G0FTD wrote:

TV receivers without a single part of front end filtering, FM b/cast receivers still using
sqush bucket regens, PC equipment in unshielded enclosures, copper phone lines
creating at least -70dbm of wide band noise on HF and every bit of consumer electronics
using shitty SMPSU's.

Sorry Andy, but I don't completely agree.

Most current digital TV's don't use old style tuners any more, and even when they did, they were susceptible to overload from nearby RF sources.

FM broadcast receivers have gone the same way, and I doubt you would find many super regens, except for perhaps cheap remote controls. But regens were a problem right from the start back in the 1920's, so they are not a recent technology and only became less popular when superhet designs appeared in the 19030's

Most current PC's have shielding as an integral part of their design, as they have to co-exist with WiFi, Bluetooth, NFC etc.

The copper phone lines are going, along with VDSL, and being replaced with fibre to the premises, but folks are complaining about that too.

Modern switched mode supplies are actually improving, although there are a lot of substandard Chinese products about, some of the more recent switching phone chargers are actually very quiet.

Throughout the history of wireless communication, there has always been something producing unwanted noise and interference.

I can remember when car ignition interference was a problem, along with trams and electric trolley buses (yes really, I am just about old enough to remember that). Sparking electric motors from vacuum cleaners, food mixers and washing machines.

70's HiFi systems that didn't like a sniff of AM or SSB. Then came the first generation home computers, and the scourge of Plasma TV's. Well, you get the idea.

The ITU noise curves still seem to be as valid as they always have been, which suggests to me that things are not getting any worse, we are just swapping old problems for new ones, but that's life.

Nostalgia ain't what it used to be...

Regards,

Martin

The latest Fw may no longer need this converter as I changed output format
--

Hi Maik,
If you've got a windows PC :

On Sun, Mar 24, 2024 at 07:52 PM, W0LEV wrote:

QUOTE:? and every bit of consumer electronics using shitty SMPSU's.

?

And we have China to thank for that despicable situation.

FCC and the EU actually mandated the use of SMPSU's (exemptions provided if the PSU
is external), not that anyone bothers, you still buy laptops etc with external in line smpsu's.

China didn't enforce or impose any? of this upon us.

As to why was it mandated, well we can only guess.

Low weight of an SMPSU vs a big lump of iron keeps the shipping cost per unt down.

High efficiency in conversion and voltage input uniformity? = one device for all
markets, 110v - 240v world market.

But all at the expense of EMC. That's capitalism for ya ;-)

- Andy -

That's correct.? Plus, the Ultra version has a selectable pre-amp which you will most likely need to make measurements to the CISPR radiated limits.

That is, a new expense awaits me...

On Sun, Mar 24, 2024 at 12:25 PM, Krzysztof wrote:

Yes, I know that, but the RBW 200Hz is probably only available in the ULTRA version?

? That's correct.? Plus, the Ultra version has a selectable pre-amp which you will most likely need to make measurements to the CISPR radiated limits.

Herb