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Welcome and feel free to ask about the tinySA

George Dukish
 

HAPPY 'NEW YEAR' to all, as I received my two ordered ULTRA(s) yesterday before the price goes up at RandL. One question that I have for the group is what I can do to calibrate the ULTRA's freq display to read closer to reality. My TinySAs all read my hand held CB radio channel 9 to be 27.06MHz, which is close enough for government purposes. However, my 2 ULTRAs display 26.7MHz (365KHz low), when antenna is placed near the RF- IN port, after going thru the self test (passed) and level cal? I'M not complaining for the fact that it can do so much more than I believe for such a low price. I am just wondering if I can get things a little closer to the truth. I have done no firm/ware up-dates. AGAIN, THANKS ERIK AND THE DEVELOPING TEAM FOR BRINGING THIS LITTLE (POWERFUL) BEAUTY OUT TO THE MARKET PLACE! signed GEO.
On Saturday, December 31, 2022, 11:23:51 AM CST, Erik Kaashoek <erik@...> wrote:


On Sat, Dec 31, 2022 at 08:34 AM, Klaus W?rner wrote:
The only condition is, all frequencies in the scan range have to be under 800MHz
This is not true
The part of the scan range that can use the normal mode will use the normal correction curve
The switching between the two modes using their own curve is automatic

?
--
For more info on the tinySA go to https://tinysa.org/wiki/

--
George Dukish
 

On Sun, Jan 1, 2023 at 02:29 AM, George Dukish wrote:
I am just wondering if I can get things a little closer to the truth.
You can correct the frequency using CONFIG/MORE/EXPERT CONFIG/FREQ CORR
Enter the PPB correction factor.
The frequency correction will NOT change the frequency of the CAL output
?
--
For more info on the tinySA go to https://tinysa.org/wiki/
 

I generated a signal on 799,9(9)5MHz. Then I totally misalligned the normal correction curve. I had a perfect signal level until the upper frequency was lower than 800MHz.
--
Klaus, DL5KV
 

This is consistent with my previous post
As long as the end frequency is above 800MHz the 700-800MHz range uses the Ultra correction.
As soon as the end frequency is below 800MHz the normal correction curve is used
Below 700 MHz always used the normal correction curve
--
For more info on the tinySA go to https://tinysa.org/wiki/
George Dukish
 

Thank you again Erik. I do now remember a thread on the issue with the original TinySA, which I never had any issues with. I am just afraid to interfere with the 'ULTRA', which is such a beautiful work of art created by a 'Genius. signed, Geo.
H.N.Y.
On Sunday, January 1, 2023, 04:41:05 AM CST, Erik Kaashoek <erik@...> wrote:


On Sun, Jan 1, 2023 at 02:29 AM, George Dukish wrote:
I am just wondering if I can get things a little closer to the truth.
You can correct the frequency using CONFIG/MORE/EXPERT CONFIG/FREQ CORR
Enter the PPB correction factor.
The frequency correction will NOT change the frequency of the CAL output
?
--
For more info on the tinySA go to https://tinysa.org/wiki/

--
George Dukish
 

Hello Erik! and thank you for these wonderful devices! I have Linux experience so this is device intrigues me in many way ways. I one Tinysa, Tinysa ultra, and nanovna.
I have a suggestion since it might be only software but is it possible to add to in the generator side of the menu that you could include another option in the sweep for rise, fall and rise-fall?
Thank you.
 

I used an open source project available on github to control my tinysa but it seems the hardware can't transfer data to the pc, is anyone experiencing the same problem？
project links:
Or is there something wrong with my hardware?
The run log on my pc machine using the above project is as follows:


I added? logging.debug(f"dataBlock length: {len(dataBlock)}")? to the code so that it can show dataBlock.length.
I hope someone can help me , thanks.

 

Try a terminal emulator (putty or tera) and connect to the COM port of the tinySA
The command?
help
should show the lists of available commands
If this does not work, check USB port/cable and see if device managers shows an additional COM port when the tinySA is connected
--
Designer of the tinySA
For more info go to https://tinysa.org/wiki/

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