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Re: TinySA Ultra and TinySA App

 

Ed, did you disable the 'power management option' of your USB port?
If there is no traffic on the USB port, Windows will shut it down after certain periode of time.

73's de OE1MWW
Wolfgang

Google: "How to Disable Power Management for USB connected Devices"
TinySA Ultra and TinySA App

 

Colleagues,

I have owned a TinySA for quite a while now and just received a new TinySA Ultra yesterday (the screen was aligned properly). The Ultra seems to be working well stand alone, but I am having some issues when using it with TinySA-App v1.1.20.1.

Since I usually use the TinySA-App when making measurements, I would appreciate any suggestions for resolving an issue which I am experiencing. When I use the TinySA Ultra I seem to get a "Disconnect" after several minutes of apparently normal operation. I was originally running at the default baud rate of 115200 and reduced the baud rate to 19200 but the problem persists. As a test, I exchanged the TinySA Ultra for my original TinySA and have not experienced a disconnect for at least an hour of operation so far. I should mention that I am running Windows 10 and have ensured that the COM port is running at the same baud rate as the TinySA-App. I have also experienced this issue on two different computers, one running 32-bit Windows 10 and the other running 64-bit Windows 10.

Suggestions would be appreciated!
--
Ed, K0KC
?
k0kc@...
http://k0kc.us/
Re: Invitation: How high will your tinySA Ultra go?

 

Attachments

Mirek

SCRN.zip
SCRN.zip

Re: Invitation: How high will your tinySA Ultra go?

 

For me, the biggest benefit of Ultra is that I don't have to worry about spur removal. The sensitivity of the TinySA at 10 GHz is not bad compared to a pro harmonic mixer, and when setting up radio gear, I usually work with relatively strong signals.
I have made measurements of the TinySA sensitivity for frequencies 8 to 18 GHz, always the oscillator gain is 0 dBm It is for 3rd, 4th and 5th harmonics. I've attached screenshots.
The sensitivity is sufficient for working with amplifiers. Level calibration is important.
Thanks for any efforts to extend the bandwidth!

Mirek
Re: #ultra Correction table frequencies #ultra

 

Thanks, so it's just like the old.
--
Klaus, DL5KV
Re: Invitation: How high will your tinySA Ultra go?

 

On Fri, Dec 9, 2022 at 04:37 AM, MirekD wrote:
I will welcome any extension of the TinySA Ultra range
Current max freq for the Ultra is 12GHz. Not sure you will see anything above that as the Ultra will need to use the 5th harmonic and the mixer is used way, way out of spec. And I have nothing to test these high frequencies.
Let me think about this.
?
--
For more info on the tinySA go to https://tinysa.org/wiki/r
Re: Invitation: How high will your tinySA Ultra go?

 

I have home made ham radio transverters up to 47 GHz. I use an Advantest spectrum analyzer together with a harmonic mixer up to 100 GHz to set them up.
When working with the harmonic mixer, I have to change the frequency of the local oscillator appropriately to detect spurs.
The TinySA ULTRA has automatic spur suppression (for steady signals) already implemented and this is a big help! I will welcome any extension of the TinySA Ultra range, it will make my job very easy.
I have already tested the 10368 MHz signal on the Ultra, the sensitivity is quite sufficient for my use. Amazing instrument!
Mirek
Re: Invitation: How high will your tinySA Ultra go?

 

On Fri, Dec 9, 2022 at 12:59 AM, Erik Kaashoek wrote:
The tinySA Ultra is level calibrated up to 6GHz but it will, with reduced dynamic range, go up to possibly above 10GHz.
So I have this challenge for all tinySA Ultra users:?Can you demonstrate a real application (not just a signal generator) where you use the tinySA Ultra above 5 GHz?
As a first step I welcome a measurement of the 5GHz WiFi band in max hold with some channels active
Maybe a ham can try to observe the 5.7 or 10GHz band?
Anything else?
? ?Funny you should ask Erik.? I was gifted an X-Band (10.5GHz) Gunn Oscillator transceiver in unknown condition.? After hooking it up to a 9V battery I was able to verify with my tinySA Ultra that at least the transmit portion is working.







Herb

Re: #ultra Correction table frequencies #ultra

 

On Fri, Dec 9, 2022 at 02:49 AM, Klaus W?rner wrote:
Now I would like to optimize the correction table. In the normal tinysa there has to be a point for 30MHz. Is there any frequency for the ultra which has to be present in the table, too?
In the ultra there are multiple correction tables, if there is a 30 MHz point in the table it can not be removed and correction at 30MHz must be zero.
?
--
For more info on the tinySA go to https://tinysa.org/wiki/
#ultra Correction table frequencies #ultra

 

Congratulations. The ultra is a great work.
I wobbled it until 3.2GHz to see, where are the best positions for setting the leveloffset correction points. The courve is mostly linear and only less points are mandatory for a correction as exact as possible. Only 3 frequencies stood out: 244MHz, 488MHz and 651MHz. At these frequencies are measurement problems. If I activate the spur correction manually they go away but the automatic spor correction doesn't activate it.

Now I would like to optimize the correction table. In the normal tinysa there has to be a point for 30MHz. Is there any frequency for the ultra which has to be present in the table, too?

--
Klaus, DL5KV
Invitation: How high will your tinySA Ultra go?

 

The tinySA Ultra is level calibrated up to 6GHz but it will, with reduced dynamic range, go up to possibly above 10GHz.
So I have this challenge for all tinySA Ultra users:?Can you demonstrate a real application (not just a signal generator) where you use the tinySA Ultra above 5 GHz?
As a first step I welcome a measurement of the 5GHz WiFi band in max hold with some channels active
Maybe a ham can try to observe the 5.7 or 10GHz band?
Anything else?
--
For more info on the tinySA go to https://tinysa.org/wiki/
Re: Ultra Arrived - Crooked Screen Help?

 

Thanks, I don't mind waiting a few more weeks before I order number 2
Re: TinySA persistence

 

Roger, thanks for the video link! ?This is my 1st experience with a spectrum analyzer and you hit the nail on the head in educating me. ?I’m not certain I follow the integration of the 3 screens. ?I’m hoping my habit of using my variable HP 355 attenuator and starting at 40 then reducing to no more than 10 will keep me safe while I learn.
Josh
Re: Ultra Arrived - Crooked Screen Help?

 

His has been investigate and appropriate actions have been take
Due to the shipping time we may see some more.
--
For more info on the tinySA go to https://tinysa.org/wiki/
Re: Ultra Arrived - Crooked Screen Help?

 

Seeing how many arrive crocked, there seems to be a quality assurance problem.
Re: Ultra Arrived - Crooked Screen Help?

 

开云体育

Thanks. Done!?? I hope it holds

Rich

On 12/8/2022 9:48 AM, Erik Kaashoek wrote:

On Thu, Dec 8, 2022 at 06:13 AM, K3RWN wrote:
The screen is crooked but firmly attached.? Any suggestions on how to release the tape and re-apply?
Carefully pull at the short side of the display opposite to the LCD cable connector as seen on the back of the BCP
Don't yank but with some gentle pull the tape will release the display after some seconds.
Be careful no to bend the LCF flat cable beyond its current shape. Lifting the LCD at the non cable side about half an inch should be OK. Leave the side with the cable initially resting on the PCB.
Once the display is free, keep at just above the tape and position within the square printed on the PCB. Slowly press down and give the tape some time to stick by applying gentle pressure.on the 4 sides of the display.
Mount the display/PCB back in the case and do not overtighten the 4 case screws. Once the gap between the two case halves is gone and you feel the "end" stop.
Overtightening will cause the touch panel to stop working. If this happens, release the screws a bit.
--
For more info on the tinySA go to

Re: TinySA ULTRA Calibration

 



Level was in the range, after setting the frequency exact, calibration was completed.
Re: Ultra Arrived - Crooked Screen Help?

 

On Thu, Dec 8, 2022 at 06:13 AM, K3RWN wrote:
The screen is crooked but firmly attached.? Any suggestions on how to release the tape and re-apply?
Carefully pull at the short side of the display opposite to the LCD cable connector as seen on the back of the BCP
Don't yank but with some gentle pull the tape will release the display after some seconds.
Be careful no to bend the LCF flat cable beyond its current shape. Lifting the LCD at the non cable side about half an inch should be OK. Leave the side with the cable initially resting on the PCB.
Once the display is free, keep at just above the tape and position within the square printed on the PCB. Slowly press down and give the tape some time to stick by applying gentle pressure.on the 4 sides of the display.
Mount the display/PCB back in the case and do not overtighten the 4 case screws. Once the gap between the two case halves is gone and you feel the "end" stop.
Overtightening will cause the touch panel to stop working. If this happens, release the screws a bit.
--
For more info on the tinySA go to https://tinysa.org/wiki/
Re: TinySA ULTRA Calibration

 

The Ultra can be used to measure the level of the harmonic :-)
--
For more info on the tinySA go to https://tinysa.org/wiki/
Re: TinySA ULTRA Calibration

 

The 5.34GHz signal must within 100kHz of the 5.34GHz as expected by the Ultra.
Basically the marker must be on the grid line.

With +6dBm input to the Ultra at 444.96MHz you are overloading the mixer possibly causing all kind of non-linear behavior.
I will improve the error message to "signal level too low or not on 5.34GHz"
--
For more info on the tinySA go to https://tinysa.org/wiki/
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