Re: Banggood, is tinysa.org updated?
This is how looks tinysa ultra + from banggood. I dont have any calibrated signal generator to test how to measures. Seller says its genuine, i dont think so, there was no pen stylus inside.
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Re: Banggood, is tinysa.org updated?
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Re: Banggood, is tinysa.org updated?
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Re: Banggood, is tinysa.org updated?
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On Mon, May 5, 2025 at 08:28 AM, Kevin Kettinger wrote:
i go to buy an Raspberry, for test you're tool, i'm beginner in those domains, i think "tsactl" have a great potentiel !
i come back to tell you.
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Thank you and all the team for you're help
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Re: Level Cal -> signal level incorrect (only sometimes)
Hi Erik, understood, many thanks for your fast answer and have a nice Sunday.
Seb.
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Re: Level Cal -> signal level incorrect (only sometimes)
Judging from the picture the signal level is just on the edge of a rather arbitrary boundary condition I've defined.
You can safely ignore this.
Will adjust the value in a future FW release.
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Designer of the tinySA
For more info go to
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Level Cal -> signal level incorrect (only sometimes)
Hi there!
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I recently bought an ZS-407 (HW 0.5.4, FW -197) from Eleshop and just wanted to ask if it is a non-issue when the Self-Test is fine, but the "Level Cal"
says "Signal Level Incorrect" (-> but only sometimes).
It does that like 1 in 7 Cals. It does not seem to matter which cable(s) I use.
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Example see picture please
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And many thanks in advance for some insight :)
Regards, Seb.
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If it's any help, QtTinySA can save trace data continuously to a PC (including Pi) and does it as fast as the tinySA can scan.
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The Wiki describes how it works:
https://github.com/g4ixt/QtTinySA/wiki/Saving-sweep-data-continuously
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On Sat, May 10, 2025 at 10:18 AM, Erik Kaashoek wrote:
The tinySA never will be able to realtime record the real input signal.
It is not an SDR
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Designer of the tinySA
For more info go to
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The tinySA never will be able to realtime record the real input signal.
It is not an SDR
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Designer of the tinySA
For more info go to
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Michael,
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Strange behavior.
Normally, the switch on the left is on the OFF position and the switch on the right is on the ON position. Regardless of whether the USB is plugged into a computer or 5V DC source or not plugged.
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Thanks you for you're reply,
you confirm me the Tiny SA Ultra+ can't record the integrality of the realtime signal on his sdcard, and need external recorder ?
What sort of model of rasberry pi is correct to record in term of power (cpu, IO...)
if have two or three tiny sa in // the Pi can record them simultanously with your're software ?
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This is new to me
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Designer of the tinySA
For more info go to
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Thanks for the quick reply and I'm glad it's an original. As I plan to buy some more I had to be sure that they are not copies.
With the firmware it was stupidity on my part because I thought the programming time was displayed, but it is the build time and this does not change if the current firmware is already installed. Installing an earlier version works fine and then the build time also changes.
Another thing that drives me crazy is the power switch. When I have connected the TinySA via USB, I cannot switch on the device.
When I unplug the USB and move the switch from the right to the left position and then immediately back to the right position, the device switches on. Is this normal switch-on behaviour? Incidentally, I can also switch the device on in this way if I have connected the USB cable to a power supply unit rather than to the PC.
However, I always have to switch the switch back and forth quickly.
I've tried it umpteen times and always get the same result.
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Eleshop for sure does NOT sell clones.
Did the FW version number change?
If not, you may have loaded the FW in the wrong direction (into your PC) or you have a problem with a USB 3 port
Download the FW again and try again to update
If the updating takes a very long time you are probably connected to a USB 3 port. Find a cheap USB 2 hub to put in between the tinySA and the PC or a computer with USB 2 ports as USB 3 on some computers is not compatible with the FW update protocol.
If the battery level is yellow or red, selftests may fail although some measurements are still possible.
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--
Designer of the tinySA
For more info go to
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Hello,
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I bought a TinySA from the secure seller Eleshop B.V. Nevertheless, I am not so sure that it is an original. The following points:
Switching on only works by toggling the power switch and when USB is connected it usually does not work.
Even after updating the firmware, the firmware release date shows an old date, even if the firmware is actually up to date.
Yesterday I had problems with the self tests. It could also have been due to the battery level which I unfortunately did not check and this morning after it has charged overnight the self test works again.
Yesterday self test 1 did not work at first, later 1+2 and then later 1-4 did not work.
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Re: Signal generator level
I have a whole set of those SMA 2 watt attenuators I use for a lot of things. They are in 1 dB increments between 1 and 10 dB, and 5 dB increments from there to 30 dB. I also have a Kay switchable attenuator that can be switched in 1 dB increments up to 110 dB. It is rated to 1000 MHz and appears to be accurate across that range.
Measuring MDS is very useful with the transverters I have that use 144 and 432 MHz IF's. I can use the TinySA Ultra to generate signals up to 10 GHz. I use an HP 475B power meter to accurately measure the levels of the signal.
Zack W9SZ Even my HP 8648C set to -136 dBm (the minimum internally available output) plus additional external attenuation leaks just a wee tiny bit!? Still good for receiver MDS evaluations.? I've never looked at the leakage from the HP 8640.? Maybe someday.....
Dave - W?LEV
On Wed, May 7, 2025 at 2:43?PM James Harvey via <wyominggeezer= [email protected]> wrote: My approach would be to use one of those small SMA connector attenuators. They're fairly inexpensive and you can get them in levels from 3DB to 30 dB. That's what I use.?
I even use it for low-level QRP work. The ones I use will handle two watts.
Watch 'Yer Top Knot and Keep Your Powder Dry, ? James R. Harvey - The Wyoming Geezer -?Armed and Dangerous PM ¡à Progress Lodge #22 ¡à Order of the Eastern Star
Minimum output level used to be -120 dBm but not all HW was able to reach this level so the limit was set to -115 dBm
The limiting factor is leakage which can not be improved within current cost and space limitations
Adding a cheap external attenuator and setting the external gain to negative the attenuation solves the problem
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Designer of the tinySA
For more info go to
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Re: Signal generator level
Yep my HP 8660 leaks a small amount but as long as proper cables are used it still seems to be accurate into a 50 ohm load. Within about 1dB.?
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Re: Signal generator level
Even my HP 8648C set to -136 dBm (the minimum internally available output) plus additional external attenuation leaks just a wee tiny bit!? Still good for receiver MDS evaluations.? I've never looked at the leakage from the HP 8640.? Maybe someday.....
Dave - W?LEV
On Wed, May 7, 2025 at 2:43?PM James Harvey via <wyominggeezer= [email protected]> wrote: My approach would be to use one of those small SMA connector attenuators. They're fairly inexpensive and you can get them in levels from 3DB to 30 dB. That's what I use.?
I even use it for low-level QRP work. The ones I use will handle two watts.
Watch 'Yer Top Knot and Keep Your Powder Dry, ? James R. Harvey - The Wyoming Geezer -?Armed and Dangerous PM ¡à Progress Lodge #22 ¡à Order of the Eastern Star
Minimum output level used to be -120 dBm but not all HW was able to reach this level so the limit was set to -115 dBm
The limiting factor is leakage which can not be improved within current cost and space limitations
Adding a cheap external attenuator and setting the external gain to negative the attenuation solves the problem
--
Designer of the tinySA
For more info go to
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W5CDT