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TinySA ULTRA calibration reset error

MirekD All Messages By This Member #8183 I set the band 1MHz to 3 GHz PRESET...STORE...STORE1 I perform the calibration CONFIG...LEVEL CAL...CALIBRATE 100 kHz TO 5.34 GHz...CALIBRATE I will connect HP8657B generator, out level -60 dBm TinySA: 100 MHz -60.3 dBm ??????? 500 MHz -60.3 dBm ??????? 750 MHz -60.5 dBm ??????? 900 MHz -60.4 dBm ??????? 1600MHz -60.8 dBm Excellent accuracy! Congratulations. Turn off TinySA...Turn on TinySA...PRESET...1000kHz 3GHz I connect the HP8657B generator, out level -60 dBm TinySA: 100 MHz -60.3 dBm ??????? 500 MHz -60.3 dBm ??????? 750 MHz -60.5 dBm ??????? 900 MHz nothing ??????? 1600MHz nothing Above 800 MHz the sensitivity is very poor, calibration is lost. TinySA ULTRA S/N SU-22110028? FW 1.3.510-g7b602fc 73, Mirek AfterSwitchingOnAgain.bmp AfterCalibration.bmp
Erik Kaashoek All Messages By This Member #8184 I can't replicate this.? The loss of sensitivity above 800MHz indicates the device does not switch to ultra mode when asked to scan above 800MHz. Can you disable/enable ultra mode after loading the preset and check if the sensitivity above 800MHz comes back? -- For more info on the tinySA go to https://tinysa.org/wiki/
MirekD All Messages By This Member #8185 开云体育 Hi, Erik! When I turn on TinySA, Ultra Mode is marked as on. When I turn Ultra Mode off and on again, the sensitivity on the upper band is OK! The error is therefore in the UltraMode reset. And indeed, when I turn on TinySA, even when UltraMode is on, it cannot set frequencies above 800 MHz I have to turn Ultra Mode off and back on. Thanks, Mirek Dne 02.12.2022 v 14:06 Erik Kaashoek napsal(a): toggle quoted message Show quoted text I can't replicate this.? The loss of sensitivity above 800MHz indicates the device does not switch to ultra mode when asked to scan above 800MHz. Can you disable/enable ultra mode after loading the preset and check if the sensitivity above 800MHz comes back? -- For more info on the tinySA go to
Erik Kaashoek All Messages By This Member #8186 Can you do a CONFIG/MORE/CLEAR CONFIG and do the tests again so see if anything changed? -- For more info on the tinySA go to https://tinysa.org/wiki/
MirekD All Messages By This Member #8187 开云体育 Thank you for the very quick reply, Eric! I did CLEAR CONFIG according to your advice and the behavior is as it should be, it is ok! But it is OK only until I set the range from 1 to 100 MHz and save it as STORE AS STARTUP. After that, the behaviour is the same as before, i.e. bad. So I must not set the lower band range as STARTUP. Thanks for the help! Mirek Dne 02.12.2022 v 14:41 Erik Kaashoek napsal(a): toggle quoted message Show quoted text Can you do a CONFIG/MORE/CLEAR CONFIG and do the tests again so see if anything changed? -- For more info on the tinySA go to
Erik Kaashoek All Messages By This Member #8188 Will see if I can replicate this and find the cause. -- For more info on the tinySA go to https://tinysa.org/wiki/
MirekD All Messages By This Member #8189 开云体育 Next I tested... When I set the upper band and save it as STARTUP, when I turn it on, the STOP frequency is set to 800 MHz and the upper band behaves as off again. The bad behavior is somehow related to using the STORE AS STARTUP function. As long as I do not use the STORE AS STARTUP function after CLEARCONFIG, the behavior is OK. Mirek Dne 02.12.2022 v 15:11 Erik Kaashoek napsal(a): toggle quoted message Show quoted text Will see if I can replicate this and find the cause. -- For more info on the tinySA go to
MirekD All Messages By This Member #8190 开云体育 The startup function itself doesn't work somehow, when TinySA is turned on it always sets the last state before shutdown and it doesn't matter what was saved STORE AS STARTUP. Mirek Dne 02.12.2022 v 15:11 Erik Kaashoek napsal(a): toggle quoted message Show quoted text Will see if I can replicate this and find the cause. -- For more info on the tinySA go to
Erik Kaashoek All Messages By This Member #8191 Only a limited set of parameters (Attenuation, start/stop freq) is restored back to before shutdown, all others come from STORE AS STARTUP But after startup you can do LOAD STARTUP to restore everything back to the saved startup configuration -- For more info on the tinySA go to https://tinysa.org/wiki/
MirekD All Messages By This Member #8192 Thanks for the clarification! Mirek Dne 02.12.2022 v 15:47 Erik Kaashoek napsal(a): toggle quoted message Show quoted text Only a limited set of parameters (Attenuation, start/stop freq) is restored back to before shutdown, all others come from STORE AS STARTUP But after startup you can do LOAD STARTUP to restore everything back to the saved startup configuration
Ted Chesley All Messages By This Member #8208 Hi Erik, -Reading MirkD's description of his issue with the ULTRA, mine has exhibited the same behavior. Ran into issues requiring resetting of the Ultra Mode, even though it was checked, in order to set to a higher frequency than 800Mhz. I'll keep an eye on what you guys come up with regarding this. Another issue I noted is in the interface of the Ultra with the latest TinySA -App, 1.1.20.1.I have updated the FW with the app with no issues whatever. However, if I use the instrument set up (four arrows on the left), the program loads the Tiny SA set up. If I import a frequency range from 0MHz (to whatever), the program will not display sweep. If I change the sweep range in the program, from .000001Hz (to whatever), the program sweeps normally. On the instrument, if I set a low frequency of .000001Hz (to whatever), the program imports this and sweeps normally.?Appears the program doesn't like the 0Hz (as the original setup on? the Ultra came from Zeenko). I tried reloading the older FW in the instrument, no change, and tried an older version of the App, no change. I tried my older Tiny SAs and found when I set the range to 0Hz (to whatever) the App uploaded the setup, but loaded the low frequency as .000001 Hz. The Ultra loads the low frequency as 0Hz. if set to that on the Ultra. Appears the low freq must be a frequency of at least 1Hz.? Not a critical issue as long as the behavior is known. By the way,as I work primarily in GHz range frequencies, using a 6GHz test generator, I find the instrument within 0.5dB of the generator output level and the frequency is very close as well. To get an accurate instrument at this price range that goes as high as 6GHz and that compares favorably with commercial instruments at 30X the cost, is a monumental achievement. Congrats to you and the team that developed this.? ----------------------------------------- From: "Erik Kaashoek" To: [email protected] Cc: Sent: Friday December 2 2022 6:11:03AM Subject: Re: [tinysa] TinySA ULTRA calibration reset error Will see if I can replicate this and find the cause. -- For more info on the tinySA go to
Erik Kaashoek All Messages By This Member #8214 Can you guy's test the latest FW release? /g/tinysa/message/8213 -- For more info on the tinySA go to https://tinysa.org/wiki/
MirekD All Messages By This Member #8216 开云体育 Hi, Erik, I'm testing version 512 (TinySA reports it as 511). The bug with the ultra band restoration seems to be fixed. Only when switching mode to generator and back, the range is always set to 0 to 800 MHz in SA. Excellent work! Mirek Dne 03.12.2022 v 8:42 Erik Kaashoek napsal(a): toggle quoted message Show quoted text Can you guy's test the latest FW release? /g/tinysa/message/8213 -- For more info on the tinySA go to
Erik Kaashoek All Messages By This Member #8217 On Fri, Dec 2, 2022 at 11:55 PM, MirekD wrote: (TinySA reports it as 511) Should be ok now. The generator and the SA use the same backup locations for frequency and span so when switching between the modes the frequency will always be reset. ? -- For more info on the tinySA go to
MirekD All Messages By This Member #8218 开云体育 Okay, Eric, I understand. I'm gonna describe another little problem. Example: I set the frequency to 50 to 100 MHz. I click on the marker, the marker becomes active. Then I execute: MARKER... MARKER OPS...CENTER The action executes correctly, but after the action, a triangle appears in front of SPAN on the bottom right of the display, indicating that SPAN is active. However, Jog does not change the value of SPAN where the triangle is, but changes the value of CENTER. But I think after the OPS CENTER action the marker should remain active, Jog should still move the marker. Mirek Dne 03.12.2022 v 11:32 Erik Kaashoek napsal(a): toggle quoted message Show quoted text On Fri, Dec 2, 2022 at 11:55 PM, MirekD wrote: (TinySA reports it as 511) Should be ok now. The generator and the SA use the same backup locations for frequency and span so when switching between the modes the frequency will always be reset. ? -- For more info on the tinySA go to
MirekD All Messages By This Member #8222 Hi, Eric, I've also noticed that when I change the brightness of the display, this setting only applies until TinySA is turned off. It would be good if the brightness setting was part of STORE AS STARTUP. Today I was using TinySA (with RF probe) to repair a home made UHF transceiver and it was very pleasant to work with. Beautiful instrument! Mirek

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