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Re: Continuously logging to CSV file using python

 

On Sun, Sep 22, 2024 at 07:37 PM, <hai.truong.csnott@...> wrote:
... While the screen of my tinySA device shows values from -80 dbm to -65 dbm, but your code output values from -30 to -20 for the above spectrum. May I know the reasons for this difference?
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And what are the differences between your code and the one shown in since you do some conversion from the raw_data to dBm power.
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The script you used is for the tinySA.? The tinySA and tinySA Ultra use different scaling factors to convert from raw_data to dBm power:
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# tinySA: ?SCALE = 128
# tinySA Ultra: SCALE = 174
SCALE = 174
dBm_power = raw_data / 32 - SCALE
?
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Example scripts for using the tinySA Ultra are located at: ?
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One of the group members wrote a simple script for logging the FM band that is attached.
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Herb
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FM_scanraw.py
FM_scanraw.py

Re: Duplicated mobile bands 1.8, 2.1, 2.7 and WiFi 2.4 #bug_report #tinysa #ultra

 

I guess you didn't read the wiki page on the ultra mode before applying the unlock code?
--
Designer of the tinySA
For more info go to

Duplicated mobile bands 1.8, 2.1, 2.7 and WiFi 2.4 #bug_report #tinysa #ultra

 

Hi, I'm new here and may have missed a similar discussion.
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My TinySA duplicates frequencies starting from 1100 MHz and ending with 3500 MHz. Perhaps frequencies lower and higher are affected, I was unable to quickly find a suitable antenna. Copies are created with an offset of approximately 2 GHz. I put together a small animation of how this happens.
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Mobile bands 1.8, 2.1, 2.7 and WiFi 2.4 receive their full copies with an offset of approximately 2 GHz. That is, these are not harmonics, the offset is approximately the same for different frequencies and the signals do not differ externally either.
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Approximate numbers are as follows:
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1.1 -> 3.059

1.2 -> 3.1501

2.0 -> 3.9585

2.5 -> 4.5542

2.7 -> 4.6526

3.0 -> 4.9511

3.3 -> 5.2541

3.4 -> 5.5909

3.5 -> 5.7357

3.7 -> 6.0440

4.0 -> 6.4930

4.5 -> 7.2414


To better measure the frequency offset, I used a generator and I had even more questions. The main frequency and its harmonics were displayed on the screen exactly where they were needed, for example 1 GHz: 2, 3, 4, 5, and so on. At the same time, mobile phone signals are duplicated as before with an offset of about 2 GHz.
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Please advise what could be causing this behavior and in what direction should I move on.
So far I have tried to calibrate the device and update the firmware to the latest version. I have also studied the settings menu.

ezgif-4-935c6e35e8.gif

Re: 5.8GHz wideband video signal measurements

 

On Fri, Sep 20, 2024 at 02:12 PM, Hugen wrote:
It is possible that Aliexpress cannot ship to your country, we will distribute to dealers in different countries after more testing of the LNA.
In my case I never had a problem with the shipment to Italy of the dozens of items that I bought on Aliexpress.
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Also consider that I bought the TinySA Ultra from Zeenko store on Aliexpress in May 2023 without any problem during the order process ...
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The problem I described above appeared a few days after Hugen's post 17933, before that I could see the LNA page ...
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Re: Continuously logging to CSV file using python

 

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Its not my code, I just found it.? I can't answer the questions.

On 9/22/24 10:37 PM, hai.truong.csnott via groups.io wrote:

Hi Rich, thanks for your suggestion. I tried your code to output values from 5GHz to 6GHz. While the screen of my tinySA device shows values from -80 dbm to -65 dbm, but your code output values from -30 to -20 for the above spectrum. May I know the reasons for this difference?
?
And what are the differences between your code and the one shown in since you do some conversion from the raw_data to dBm power.
Re: updating the firmware using a bin file and dfu-util in Win10

 

Hi Chin-Leong,
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You may have already seen my post a few minutes ago that the latest version of the document is soon to be released by Kurt Poulsen and me once Kurt does a review of my updates and makes any additions of his own.? It will bring this document up to Firmware Version 1.4-177 of the TinySA Ultra.??
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73, David Massey, WD4OWA
Re: updating the firmware using a bin file and dfu-util in Win10

 

Kurt Poulsen and I have been jointly updating the menu documentation for the TinySA Ultra but I'm unaware of who is doing a similar Menu Chart document for the TinySA.? BTW, there will be a new release of the TinySA Ultra Menu Chart document hopefully before October 1st.? Kurt is looking over my updates and adding anything that might be needed.
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73, David Massey, WD4OWA
Re: Continuously logging to CSV file using python

 

Hi Rich, thanks for your suggestion. I tried your code to output values from 5GHz to 6GHz. While the screen of my tinySA device shows values from -80 dbm to -65 dbm, but your code output values from -30 to -20 for the above spectrum. May I know the reasons for this difference?
?
And what are the differences between your code and the one shown in since you do some conversion from the raw_data to dBm power.
Re: updating the firmware using a bin file and dfu-util in Win10

 

Hi David,
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At a cursory glance, it looks up-to-date; i.e. PAUSE is the topmost tab in the primary menu. Thanks for updating the document.
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73, Chin-Leong Lim, 9W2LC
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Re: updating the firmware using a bin file and dfu-util in Win10

 

That TinySaUltra ?document ?is excellent!

?Is there an updated ?version for the TinySa at the latest available FW (version 1.4-175)? ?What I currently have is dated March 2021.
?
--
73, Bernie, VE3FWF
(most typos in this message were generated by highly sophisticated auto-correction AI software)
Re: Max input signal at 10GHz.

 

John, simple rule.
Subtract the EXT GAIN value from the max rated input power and keep the tinySA measured power below that value
This works for both attenuators and amplifiers.
With ext gain of -30 dB your max rated power at the input of the external attenuator goes 30 dB up
With 20 dB external gain the max level at the input of the external amp goes 20 dB down
--
Designer of the tinySA
For more info go to

Re: Max input signal at 10GHz.

 

Thank you Eric,
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This answers the question. I just wanted to make sure since it is an easy trap to fall into especially using pre amplifiers.? A reading of 0dbm after an amplifier offset of 20db is dangerous to the TinySA.
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Something to keep in mind buying the amplifiers at Zeenco and using them in front of the ZinySA.
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John
Re: updating the firmware using a bin file and dfu-util in Win10

 

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This is the latest Menu Tree Chart.? Hopefully it has all of the latest changes up to firmware v1.4.104.? Please let me know if it needs any changes.

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From: [email protected] <[email protected]> On Behalf Of biastee via groups.io
Sent: Sunday, September 22, 2024 10:22 AM
To: [email protected]
Subject: Re: [tinysa] updating the firmware using a bin file and dfu-util in Win10

?

Success at last! Piqued by josephlevy's advice to get the correct driver, I started reading the old threads related to FW update and then stumbled upon Herb Walker's post #10798 via Roger Need's post #10837. Per Herb's post, I installed STtube.inf. Subsequently, the TinySA app could find the DFU device and everything was plain sailing.?

No need to resort to the alternate method of installing via dfu-util. And to my great relief - No need to disable Windows Memory Integrity (#10816) despite my using Win10.

For the benefit of current (& future) users stymied by the fw update difficulty, hopefully, Erik can find the time to update the instruction at tinysa.org/wiki/pmwiki.php?n=Main.UpdatingTheFirmware. And also to update the outdated Ultra menu tree that still reflects my old FW, e.g. the DISPLAY tab is the fifth item from the top.

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73, Chin-Leong Lim, 9W2LC

TinySA Ultra Menu-Tree Chart - v1.4-104 - Updated August 2, 2024.pdf
TinySA Ultra Menu-Tree Chart - v1.4-104 - Updated August 2, 2024.pdf

Re: Continuously logging to CSV file using python

 

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There is a simple python program here:



Note sure it that is what you are looking for.?

Its a good way to learn to use the serial port without getting into the additional learning curve of Qt programming.?


On 9/22/24 9:26 AM, hai.truong.csnott via groups.io wrote:

I would like to continuously log the frequency along with the associated signal strength (in dBm) into a CSV file using python, but I am unsure of the appropriate method to achieve this. I have explored the USB interface for Wi-Fi, but there are many different commands (like scan, scanraw), and I am not sure which ones to use. Could you recommend some tutorials or provide guidance on the commands needed to accomplish this task?
Thank you
Re: updating the firmware using a bin file and dfu-util in Win10

 

Success at last! Piqued by josephlevy's advice to get the correct driver, I started reading the old threads related to FW update and then stumbled upon Herb Walker's post #10798 via Roger Need's post #10837. Per Herb's post, I installed STtube.inf. Subsequently, the TinySA app could find the DFU device and everything was plain sailing.?
No need to resort to the alternate method of installing via dfu-util. And to my great relief - No need to disable Windows Memory Integrity (#10816) despite my using Win10.
For the benefit of current (& future) users stymied by the fw update difficulty, hopefully, Erik can find the time to update the instruction at tinysa.org/wiki/pmwiki.php?n=Main.UpdatingTheFirmware. And also to update the outdated Ultra menu tree that still reflects my old FW, e.g. the DISPLAY tab is the fifth item from the top.
?
73, Chin-Leong Lim, 9W2LC
Continuously logging to CSV file using python

 

I would like to continuously log the frequency along with the associated signal strength (in dBm) into a CSV file using python, but I am unsure of the appropriate method to achieve this. I have explored the USB interface for Wi-Fi, but there are many different commands (like scan, scanraw), and I am not sure which ones to use. Could you recommend some tutorials or provide guidance on the commands needed to accomplish this task?
Thank you
Re: Cannot exit Mode menu

 

Problem solved. It was an OSI layer 8 problem (layer in front of the gadget/computer/...) .
Thought I could leave via touching an empty area but had to select "Spectrum Analyzer" instead.
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Did a touch test just to make sure and it behaves similar to my nanoVNA.
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Thanks and sorry for the spam
Robert
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Re: Max input signal at 10GHz.

 

In other words:

"The TinySA Ultra +6dBm max input specification is not merely a suggestion, it's the law." :-))


On Sat, Sep 21, 2024, 3:55 PM Erik Kaashoek via <erik=[email protected]> wrote:
There is some sort of inaccurate factory calibration up to 10 GHz. It was created using a constant power signal over the harmonic range. Most losses in harmonic mode are happening in the mixer.
Please do not exceed maximum input level, even at 10 GHz as you otherwise may kill the mixer, the input attenuator, the switches, or even the LNA due to leakage in the switches at 10 GHz
--
Designer of the tinySA
For more info go to

Re: Max input signal at 10GHz.

 

There is some sort of inaccurate factory calibration up to 10 GHz. It was created using a constant power signal over the harmonic range. Most losses in harmonic mode are happening in the mixer.
Please do not exceed maximum input level, even at 10 GHz as you otherwise may kill the mixer, the input attenuator, the switches, or even the LNA due to leakage in the switches at 10 GHz
--
Designer of the tinySA
For more info go to

Max input signal at 10GHz.

 

Gents,
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?With the input of the TinySA basically being an attenuator at 10GHz. and pre-amplifiers available for that frequency did anyone ever tried to find out what the maximum input signal at that frequency is?
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As an example, lets assume a 30db gain amplifier, the offset to a known good signal? is ...say... -5 db? i.e the TinySA? with the current calibration reads 5db low. Then I can set the gain/loss offset to 25db? instead 30db and have a correct reading.? But, if I use a -10dbm? input signal, and the TinySA would read -10dbm, the actual signal at the input of the TinySA connector would be +20dbm.
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Would that not exceed the input capability? Or do I miss something?
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John
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