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Erik,
? When making the most accurate measurement on the HP spectrum analyzers that I have used, the best practice was to change the reference level to bring the measured signal as close to the top grid as possible to minimize ADC conversion errors.
? Is this also a measurement accuracy consideration for the tinySA Ultra?
Herb
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No, accuracy is in no way impacted by the reflevel value. The attenuation level does have an impact in avoiding compression. Other than that the 120dB range of the power detector is linear within its 0.5dB accuracy --
For more info on the tinySA go to https://tinysa.org/wiki/
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I haven't been able to figure out how to save a display to the SD
card. But somehow I must have accidentally done so, because when I
selected LOAD BMP, there was a filename displayed. I clicked it and
got a saved display, but it was shifted to the left, causing the
info normally on the left to (mostly) wrap around to the right side.
On 12/11/2022 1:27 PM, Erik Kaashoek
wrote:
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Show quoted text
No, accuracy is in no way impacted by the reflevel value.
The attenuation level does have an impact in avoiding compression.
Other than that the 120dB range of the power detector is linear
within its 0.5dB accuracy
--
For more info on the tinySA go to
|
I just watched IMSAI Guy's video on using the SD card, and learned
to click on the SD icon to save the screen. Cool! I did so, and it
worked without the wrapping mentioned before.
Someone will surely produce a manual for this pocket miracle
eventually, and it will be a great help to many users.
On 12/11/2022 1:58 PM, Terry Perdue
wrote:
toggle quoted message
Show quoted text
I haven't been able to figure out how to save a display to the SD
card. But somehow I must have accidentally done so, because when I
selected LOAD BMP, there was a filename displayed. I clicked it
and got a saved display, but it was shifted to the left, causing
the info normally on the left to (mostly) wrap around to the right
side.
On 12/11/2022 1:27 PM, Erik Kaashoek
wrote:
No, accuracy is in no way impacted by the reflevel value.
The attenuation level does have an impact in avoiding
compression.
Other than that the 120dB range of the power detector is linear
within its 0.5dB accuracy
--
For more info on the tinySA go to
|
It is called the Wiki. KC7BJE?
On Sun, Dec 11, 2022, 2:07 PM Terry Perdue < K8tp@...> wrote:
I just watched IMSAI Guy's video on using the SD card, and learned
to click on the SD icon to save the screen. Cool! I did so, and it
worked without the wrapping mentioned before.
Someone will surely produce a manual for this pocket miracle
eventually, and it will be a great help to many users.
On 12/11/2022 1:58 PM, Terry Perdue
wrote:
I haven't been able to figure out how to save a display to the SD
card. But somehow I must have accidentally done so, because when I
selected LOAD BMP, there was a filename displayed. I clicked it
and got a saved display, but it was shifted to the left, causing
the info normally on the left to (mostly) wrap around to the right
side.
On 12/11/2022 1:27 PM, Erik Kaashoek
wrote:
No, accuracy is in no way impacted by the reflevel value.
The attenuation level does have an impact in avoiding
compression.
Other than that the 120dB range of the power detector is linear
within its 0.5dB accuracy
--
For more info on the tinySA go to
|
toggle quoted message
Show quoted text
On Sun, Dec 11, 2022, 2:07 PM Terry Perdue < K8tp@...> wrote:
I just watched IMSAI Guy's video on using the SD card, and learned
to click on the SD icon to save the screen. Cool! I did so, and it
worked without the wrapping mentioned before.
Someone will surely produce a manual for this pocket miracle
eventually, and it will be a great help to many users.
On 12/11/2022 1:58 PM, Terry Perdue
wrote:
I haven't been able to figure out how to save a display to the SD
card. But somehow I must have accidentally done so, because when I
selected LOAD BMP, there was a filename displayed. I clicked it
and got a saved display, but it was shifted to the left, causing
the info normally on the left to (mostly) wrap around to the right
side.
On 12/11/2022 1:27 PM, Erik Kaashoek
wrote:
No, accuracy is in no way impacted by the reflevel value.
The attenuation level does have an impact in avoiding
compression.
Other than that the 120dB range of the power detector is linear
within its 0.5dB accuracy
--
For more info on the tinySA go to
|
The wiki is helpful, but I think something like a Dummies book with the function tree and detailed info on each function, as well as spectrum analyzer basics, would be most welcome.
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On Dec 11, 2022, at 4:33 PM, Clyde Lambert <clyde.lambert@...> wrote:
? It is called the Wiki. KC7BJE? _._,_._,_
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Try the attached manual. Also check out or Google for Spectrum analyzer basics books. Clyde KC7BJE?
On Sun, Dec 11, 2022, 9:37 PM Terry Perdue < K8tp@...> wrote: The wiki is helpful, but I think something like a Dummies book with the function tree and detailed info on each function, as well as spectrum analyzer basics, would be most welcome. ? It is called the Wiki. KC7BJE?
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?Thanks.? I forgot I’d downloaded that. It’s quite good, and it shouldn’t take too much effort to revise it to match the Ultra.
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On Dec 11, 2022, at 10:18 PM, Clyde Lambert <clyde.lambert@...> wrote:
? Try the attached manual. Also check out or Google for Spectrum analyzer basics books. Clyde KC7BJE? On Sun, Dec 11, 2022, 9:37 PM Terry Perdue < K8tp@...> wrote: The wiki is helpful, but I think something like a Dummies book with the function tree and detailed info on each function, as well as spectrum analyzer basics, would be most welcome. ? It is called the Wiki. KC7BJE?
<tinySA-user-manual-march2021.pdf>
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I’ve always been of the opinion that the person promoting an idea that involves significant effort to achieve should be the principle activator. Them’s that wants should do the work. ?Have at it! Dave
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On Dec 12, 2022, at 01:37, Terry Perdue <K8tp@...> wrote:
? ?Thanks.? I forgot I’d downloaded that. It’s quite good, and it shouldn’t take too much effort to revise it to match the Ultra. On Dec 11, 2022, at 10:18 PM, Clyde Lambert <clyde.lambert@...> wrote:
? Try the attached manual. Also check out or Google for Spectrum analyzer basics books. Clyde KC7BJE? On Sun, Dec 11, 2022, 9:37 PM Terry Perdue < K8tp@...> wrote: The wiki is helpful, but I think something like a Dummies book with the function tree and detailed info on each function, as well as spectrum analyzer basics, would be most welcome. ? It is called the Wiki. KC7BJE?
<tinySA-user-manual-march2021.pdf>
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Clyde Lambert