Re: A step at 3GHz?
Since the noise source generates a very wide bandwidth signal, this causes the mirror suppression algorithm of the tinySA ULTRA mode to fail. When the scanning frequency is greater than 3GHz the IF
By
Hugen
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#18971
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Re: A step at 3GHz?
I hope you read the page on limitations of enabling the Ultra mode and measuring wideband or scanning signals.? The step at 3GHz is normal for the noise source you are using.
With a noise source,
By
hwalker
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#18970
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Re: A step at 3GHz?
Hi Leif, THX for the plots. As a comparison on my ULTRA, I used a
ViewTEQ 5-1000MHz noise generator with an in-line 10dB pad and
obtained the following plots at 10MHz - 3GHz. NOTE: This is
By
Ted Chesley
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#18969
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Re: A Tracking generator with two TinySas?
I think you will find this interesting.
https://youtu.be/X4dGaC0QiEw?si=mNBxCAPxbtktOPJq
By
MaxPi
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#18968
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Re: A Tracking generator with two TinySas?
There is an article in the Jan/Feb 2025 issue ?of the QEX (which is available to ARRL members) on how to build a low-cost tracking generator for the tinySA.? Perhaps an ARRL member in this group
By
Roger Need
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#18967
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A Tracking generator with two TinySas?
I was browsing TinySa examples from https://tinysa.org/wiki/pmwiki.php?n=Main.Mixer TinySas? where directly coupled to each other.? May I ask, does it really work and can I make one TSA to output
By
Leif M
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#18966
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Re: A step at 3GHz?
The noise source is supposed to work at 12V,? but it runs very hot even at 10V. This is at 12V. I don't know how, but the problem may be at the source/Nose.
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Leif M
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#18965
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Re: A step at 3GHz?
Sure, here it comes, all? two of them. Could a Wlan leak here, I didn't see the 2.4GHz peak? at first when my PC was off. (Clock on my SA is off.)
The step shows on? PC too.
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Leif M
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#18964
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Re: A step at 3GHz?
Hi Leif, Think we could get a screen shot of the "step" ?
-----------------------------------------From: "Leif M via groups.io"
To: [email protected]
Cc:
Sent: Wednesday January 1 2025
By
Ted Chesley
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#18962
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Re: A step at 3GHz?
I? used? a 20dB attenuator between the noise source? and TinySa.
By
Leif M
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#18961
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A step at 3GHz?
When I was (playing) testing with my Nose source noise source and TinySA, everything was fine at lower frequencies, but when the max frequency was 5GHz, there was a 10-20dB step at 3GHz. I don't think
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Leif M
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#18960
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Re: Using Tiny SA- App v1.1.20.1. I – Can't change to match 2.4 GHz for the Ultra. PS: bonus question: is this the best software to use to upgrade the firmware?
Robert, glad you got it fixed.
Hope you have a Happy and Productive 2025!!!
Best Regards.....Ted (KD7AQO)
-----------------------------------------From: "Robert K3RRR"
To: [email protected]
Cc:
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Ted Chesley
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#18959
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Re: Using Tiny SA- App v1.1.20.1. I – Can't change to match 2.4 GHz for the Ultra. PS: bonus question: is this the best software to use to upgrade the firmware?
*"We don't need any stinkin' driver!"*
Bravo, Ted et al!
I did indeed have BOOTLOADER as a device under "Other Devices." Like a dumbass,
I had believed that since Windows 11 recognized the comport
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Robert K3RRR
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#18958
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Re: Using Tiny SA- App v1.1.20.1. I – Can't change to match 2.4 GHz for the Ultra. PS: bonus question: is this the best software to use to upgrade the firmware?
If you are using a windows computer (especially WIN 11), this might be
the issue.
1) If you can connect the device to the USB port (hear the "ding"), Go
into Control Panel: Hardware: Device Manager -
By
Ted Chesley
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#18957
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Re: Using Tiny SA- App v1.1.20.1. I – Can't change to match 2.4 GHz for the Ultra. PS: bonus question: is this the best software to use to upgrade the firmware?
After putting the tinySA in DFU mode, you need to use the small icon with two up-arrows to open the firmware update window.
Then see if the DFU device shows up in the drop-down list in that window.
If
By
Stan Dye
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#18956
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Re: Using Tiny SA- App v1.1.20.1. I – Can't change to match 2.4 GHz for the Ultra. PS: bonus question: is this the best software to use to upgrade the firmware?
Hi David,
Thanks for the recommendation I am trying to use your suggestion of using the app but having a problem with "No valid DFU device found."
PROBLEMS UPDATING FIRMWARE ON TINY SA ULTRA
Powered
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Robert K3RRR
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#18955
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Re: What to do when a selftest fails
Hi everyone,
I disassembled the device and successfully replaced U22 with AS179-92LF.
My device now passes all self-tests and calibration.
While disassembling, I broke the 4-pin battery connector (2
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Maximilien Beaugrand Hawley
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#18954
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Re: Using Tiny SA- App v1.1.20.1. I – Can't change to match 2.4 GHz for the Ultra. PS: bonus question: is this the best software to use to upgrade the firmware?
Robert,
Under Windows-10 I've been using the TinySA-app v.1.1.20.1 without any problems.
Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email:
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David J Taylor
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#18953
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Re: How to test and measure THD with Ultra?
THD calculates the THD of the fundamental using the harmonics as visible in the scan.
There seem to be no harmonics visible in your scan
--
Designer of the tinySA
For more info go to
By
Erik Kaashoek
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#18952
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How to test and measure THD with Ultra?
When I study the ultra with version 187, and use measure->more->THD, whatever I move the marker, the THD always 0, can someone give me some suggestions?
By
JasonMattey
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#18951
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