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Re: Self-test error and does not continue

 

I checked the cables and adapters, they are ok.
I couldn't check the RF signal via oscilloscope, probably because the signal is too low.
But the 30 MHz signal is coming out, I tested it with an amateur radio receiver, on all frequencies, and with the same signal intensity for all.
Tiny SA as a power meter.

 

I've been trying to align some HT's this week.
?
After a lot of messing about I concluded that some of the commonly available
"ham"style meters were somewhat variable in quality.
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So I decided to try using the Tiny SA as? a power meter with suitable attenuation
and calculations.
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I *think* that so far this has ended up being more accurate but I'd still like
to hear of other folks experiences using this method.
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As an aside, the sig gen function has been invaluble for setting up squelch
levels and determining sensitivity too.
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I learnt quite a bit by using the sig gen function to set up my Quansheng
squelches, there's three squelch service menus, get them wrong and
you get a disaster on your hands. (Maybe a topic for another forum!)
?
Whilst doing various tests I was surprised to see that my old Wouxun UVD1
dual bander HT was 6db less sensitive than my Quansheng's.
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Thank heavens for having a Tiny SA to hand - thanks Erik !
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And Murphy's always strikes when using various cheap cables / sma connectors.
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Oh man, those cheapo SMA's can out of tolerance causing odd losses and
not mating properly, grrr !
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73 de Andy
Re: hardware defect

 

Sorry it is -35 dBm for ultra and -26 for smaller version.
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Re: hardware defect

 

Well on mine the 30MHz fundamental is consistently at -35dBm. No problems with tests and all attenuator steps as well as the LNA do function as expected. TinySA Ultra (SeeSii) Version: tinySA4_v1.4-156-g4eb315d, still original.

Q: Does this indicate a problem, or was there a SW update that changed it to -26 dBm, Erik?
?
Thanks
Lutz
Re: hardware defect

 

On Mon, Feb 24, 2025 at 10:08 AM, R. Maris wrote:
Through the dedicated tinySA support page I was forwarded to the tinySA groups.
I don't know what "support page" you were on before but this is the only place where the developer Erik supports the tinySA products.? Read this post about failing self-tests before asking more questions.
?
A couple of points:
  • This group only supports genuine tinySA products.? Post a picture of the front and back of your device in order to determine if you have a counterfeit or genuine product.
  • The selftest requires that one of the supplied cables be connected between the two ports.
  • If you have a scope measure the output level of the 30 MHz. cal output with a 50 ohm load. ? It should be close to -26 dBm
Roger
Custom band markers

 

Hello,
?
I am not sure if I am confused :) but something is telling me that that I did read it somewhere, but I can't find it in the tinySA Ulta menus. Is there a, or was there an option to upload a specific named file defining various bands like NanoVNASaver has and toggle all on/off (versus one by one) and have it draw on the screen? Here is an example

?
If not, could this be considered in the future update?
73,
hardware defect

 

Through the dedicated tinySA support page I was forwarded to the tinySA groups.
I'm not sure whether hardware issues can be reported along this way.

I'm owning a tinyAS ultra, S/N SU-23080463.
Since some time I had doubt regarding the output level of the signal generator (appeared too low, significantly). But since that didn't doubt me, I didn't care about it - till now.

Yet I found that the LNA has got defective. With LNA, signal is negligible.

Self tests: 3, 4, 7, 10 - all Signal level Critical.

What to do?
New FW release: "audio AGC" option and reduced spurs

 

New FW release
Version V1.4197
For all tinySA Ultra and Ultra+ versions
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Changes:
- Added CONFIG/EXPERT CONFIG/MORE/AUDIO AGC option. When disabled the PCB edge point PA4 will in listen mode have a voltage linear with the signal level in dBm Useful for integration of tinySA as selective power meter
- Reduced level of internally generated spurs on multiples of 10 MHz not being multiples of 30 MHz (ZS-407 only)
--
Designer of the tinySA
For more info go to

Re: Self-test error and does not continue

 

Just to rule out the obvious.
Did you test with different coax cable?
Is the call output set to 30 MHz visible on a scope?
?
--
Designer of the tinySA
For more info go to

Self-test error and does not continue

 

After checking the low RF output in the generator function, I ran the self test. But the self test failed, stopping at item 3 and not continuing.
I am attaching a photo of the test attempt.
I have had this for 5 years and have never updated it. But it has always worked perfectly.
The current firmware is version: tinySA4_v1.4-49-g4f5396a.
Model: TinySA ULTRA
I would greatly appreciate any help.

IMG_20250222_143105361.jpg

File //tinysa-ultra-upgrade.sh updated #file-notice

Group Notification
 

The following items have been updated in the Files area of the [email protected] group.

By: Rob, W9LOT <rjgebis@...>

Description:
Debian/Ubuntu Linux and MacOSX (Intel and arm64) shell script to upgrade tinySA Ultra versions firmware # Download to your machine and change permissions cd ~/Downloads/ chmod 750 ./tinysa-ultra-upgrade.sh # Example ./tinysa-ultra-upgrade.sh --program tinySA4_v1.4-196-g1e9c187.bin --erase # Output == Using firmware binary: firmware/tinySA4_v1.4-196-g1e9c187.bin Checking for DFU utilities... ========================================================= Before upgrading, run self test to make sure the device is OK 1. Connect a loop cable between CH0 and CH1 ports 2. Select Config / Self Test ========================================================= Did the self-test succeed? (y/n): y ========================================================= tinySA Ultra 1. Press and hold jog button before switching on the tinySA Ultra 2. Switching on, the screen will stay black ========================================================= Continue with upgrade? (y/n): y Checking for device in DFU mode... == Running lsusb to detect DFU device... Bus 001 Device 013: ID 0483:df11 STMicroelectronics STM32 BOOTLOADER Serial: XXXXXXXXXXXX == Device found in DFU mode. == Programming firmware... It takes around 30 sec == Firmware update completed successfully. ========================================================= Reset & Calibration Connect a loop cable between CH0 and CH1 ports 1. Config / More / Clear Config: 1234 2. Config / Level Cal / Reset Calibration 3. Config / Level Cal / Select Range 4. Config / Self Test # Check tinysa-ultra-upgrade.log for all output
Re: dfu-util warnings and errors (ZS405 and ZS407)

 

Just uploaded a updated version of tinysa-ultra-upgrade.sh for files

Please let me know me know if you encounter any issues and please attach the generated log file.
?
Rob
Re: connecting to macOS to issue commands

 

Thank you!
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So I did
python ./tinySA.py -e 'leveloffset low output -1'
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and also in the same vein
python ./tinySA.py -e saveconfig
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Radek
Re: Pre-sale, tinySA ULTRA plus

 

I know it can be bought from the Zeenko store on AliExpress, but that means wasted time with customs formalities. It was preferable to be able to buy it from the European Union.

Re: connecting to macOS to issue commands

 

Use -e switch and enclose multi word command in quotes
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c:\work\VNA\tinySA\python>python tinysa.py -h
Usage: tinysa.py: [options]
Options:
? -h, --help ? ? ? ? ? ?show this help message and exit
? -p, --plot ? ? ? ? ? ?plot rectanglar
? -c, --scan ? ? ? ? ? ?scan by script
? -S START, --start=START
? ? ? ? ? ? ? ? ? ? ? ? start frequency
? -E STOP, --stop=STOP ?stop frequency
? -N POINTS, --points=POINTS
? ? ? ? ? ? ? ? ? ? ? ? scan points
? -P PORT, --port=PORT ?port
? -d DEV, --dev=DEV ? ? device node
? -v, --verbose ? ? ? ? verbose output
? -C FILE, --capture=FILE
? ? ? ? ? ? ? ? ? ? ? ? capture current display to FILE
? -e COMMAND ? ? ? ? ? ?send raw command
? -o SAVE ? ? ? ? ? ? ? write CSV file
? -l LIST ? ? ? ? ? ? ? list SD card files
? -r READ ? ? ? ? ? ? ? read SD card files
c:\work\VNA\tinySA\python>python tinysa.py -e leveloffset
leveloffset low -0.8
leveloffset low_output 0.0
leveloffset switch 0.0
leveloffset receive_switch 1.1
leveloffset out_switch 0.0
leveloffset lna 0.7
leveloffset harmonic 1.6
leveloffset harmonic_lna 2.9
leveloffset shift 1.4
leveloffset shift1 -0.4
leveloffset shift2 0.2
leveloffset shift3 -0.0
leveloffset shift4 0.1
leveloffset drive1 0.0
leveloffset drive2 -2.0
leveloffset drive3 -2.0
leveloffset direct 1.7
leveloffset direct_lna 4.1
leveloffset ultra -0.8
leveloffset ultra_lna 0.6
leveloffset adf 0.0
leveloffset direct_output 0.0

c:\work\VNA\tinySA\python>python tinysa.py -e "leveloffset low_output -1"

c:\work\VNA\tinySA\python>python tinysa.py -e leveloffset
leveloffset low -0.8
leveloffset low_output -1.0
leveloffset switch 0.0
leveloffset receive_switch 1.1
leveloffset out_switch 0.0
leveloffset lna 0.7
leveloffset harmonic 1.6
leveloffset harmonic_lna 2.9
leveloffset shift 1.4
leveloffset shift1 -0.4
leveloffset shift2 0.2
leveloffset shift3 -0.0
leveloffset shift4 0.1
leveloffset drive1 0.0
leveloffset drive2 -2.0
leveloffset drive3 -2.0
leveloffset direct 1.7
leveloffset direct_lna 4.1
leveloffset ultra -0.8
leveloffset ultra_lna 0.6
leveloffset adf 0.0
leveloffset direct_output 0.0

c:\work\VNA\tinySA\python>
?
--
Designer of the tinySA
For more info go to

Re: connecting to macOS to issue commands

 

Yes, I did, the response is like this:
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% python ./tinySA.py leveloffset low_output -1
Usage: tinySA.py: [options]
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tinySA.py: error: no such option: -1

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Re: connecting to macOS to issue commands

 

Did you forget the underscore between low and output?
--
Designer of the tinySA
For more info go to

Locked Re: Attenuation for Ultra

 

Let me add one reply and then close this topic.
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Fur the ultimate spur free dynamic range you have to strike a very careful balance between the power level that arrives at the mixer and the noise floor.
If you want to measure very low harmonics (say below -70dBc) you can't do a simple calculation of the attenuation required as device variations in noise floor and mixer IIP3 need to be taken into account
--
Designer of the tinySA
For more info go to

Locked Re: Attenuation for Ultra

 

When one KNOWS the source power AND the input level to the test instrument that will yield a faithful
rendition of the input signal, one can EASILY determine how much attenuation is required.
PERIOD. P E R I O D......
..but unfortunately that figure for faithful rendition generally not known and has to be determined, as was the -25dBm for the TinySA, by trial and error, and does vary somewhat from unit to unit and with signal characteristics.

73
Jeff G8HUL
Re: connecting to macOS to issue commands

 

This is the response for calibrating the output level:
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leveloffset low output -1.0
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tinySA.py: error: no such option: -1
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