开云体育

Hi Erik,

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Back in 2023 I reported that the Interval trigger feature you implemented for me on the TinySA was not working properly on the TinySA Ultra.? Today I upgraded the firmware on my TinySA Ultra to tinySA4_v1.4-196-g1e9c187.bin and I tested the Interval trigger feature again and it's still not working properly.

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My test is to feed in a 60 or 120 Hz square wave (which is rich in harmonics) into the TinySA Ultra, set the TinySA Ultra to Zero Span mode with a frequency of 1.8 MHz, set the display sweep time to 20 msec, select interval trigger with a time of 16.66 msec and I should see spikes that are stationary (very little movement left or right) but I do not get stationary spikes on the TinySA Ultra whereas I do on the TinySA when doing this same test.

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Sure would be nice to get this feature working properly on the TinySA Ultra as the TinySA Ultra has the built in LNA as well as expanded frequency coverage.

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I'm sure your buried with the new TinySA Ultra Plus (congrats) but please put this on your to do list if possible.

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Thanks,

Don (wd8dsb)??

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Hi Don,

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QI. So we meet again in another place ;) Seems I 'triggered' you to update the firmware.

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Erik, I commented on a video of Don with the following:

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We had a little discussion about this but since there is no clear explanation on this feature in the WiKi any help/clarification from you would be helpfull.

(As for me: some help on the extended trigger feature to trigger on a trace would also be nice.)?

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One of the things I noticed is that the sweeptime on the ultra is not constant: e.g. if I set the sweeptime to 50 ms the actual sweeptime in zero-span differs with every sweep +/- some ms. That would also explain Don's problem with the interval not giving a steady picture: every sweep has a slightly different time.

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Regards to both,

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Henk