Re: What accessories do I need for a TinySA Ultra?
If I'm understanding you correctly I should leave a 10db attenuator connected and then the antenna connected to that?
Like this Constant Attenuator (10db)? https://a.co/d/fuqc3Gc (Or do you recommend
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asron87@...
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#19693
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Re: WinSpectrum III spectrum analyzer application designed for Windows users working with Tiny SA Ultra+
I am a reader, not a sender of messages, usually.
However the Windows application sounds (is sound the correct word for a written message?) very useful.
What might make it even more useful is to run
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Stephen Laurence
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#19692
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Re: What accessories do I need for a TinySA Ultra?
Yes
DC block for when measuring with any DC offset and at least 10, 20 and 30 dB 2 Watt attenuators.
Leave the 10 dB always on the input and it will be safe.
When trying to probe (low or high
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Erik Kaashoek
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#19691
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Re: What accessories do I need for a TinySA Ultra?
Oh and can someone link to a 0-1Ghz LNA worth buying. And also a link for a backup 50ohm calibration kit? Or how do I test if i buy one to see if its 50ohms?
Links to attenuator worth buying?
And
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asron87@...
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#19690
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Re: What accessories do I need for a TinySA Ultra?
Hi,
Our of the above mentioned items, I bought a set of EMC SMA probes for a few €.
They are very useful for servicing radio equipments without disturbing their circuitry.
You can measure
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Georges Ringotte
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#19689
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Re: What accessories do I need for a TinySA Ultra?
Erik.... are you really the guy that made these? That's awesome to be a beginner and get an answer from the creator. So thank you for that.
What accessories would you recommend?
Is a VLM-33W-2W-S+
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asron87@...
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#19688
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Re: TinySA Ultra Calibration Fail.
Dear all,
Finally the parts arrived, and I started the IC changes.
First, I removed the U22 0 ohm resistor, working as jumper, and place the RF Switch, and do recall. During recall it fault again,
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jocaca.iot@...
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#19687
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Re: What accessories do I need for a TinySA Ultra?
No need for self righteousness. There are RF environments where strong signals can flood an antenna. I can see why such devices would be useful. But I am nowhere near such a RF environment.
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Matthew Rapaport
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#19686
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Re: tinysa ultra attentual and signal level fail
Trying to replace
Input RF switch U22:? AS179-92LF
LNA U14: BGA2817
might need to be replaced
Attenuator U28: PE4312C-Z
Good luck.
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Hugen
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#19685
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Re: tinysa ultra attentual and signal level fail
Impossible to tell
--
Designer of the tinySA
For more info go to https://tinysa.org/wiki
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Erik Kaashoek
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#19684
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Re: Manual fault finding
Thanks. I inaugurated my cheap hot air station and the RF switch gently came off. Now i could jumper it to check the attenuator, but i prefer waiting for the spare part and soldering paste, and keep
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heinrich
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#19683
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Re: tinysa ultra attentual and signal level fail
Is this one a clone? because if not, I'd be keen to try and replace the attenuator, or go through the trouble shooting more closely and try and fix it.
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a4notebook
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#19682
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Re: tinysa ultra attentual and signal level fail
Maybe, no
--
Designer of the tinySA
For more info go to https://tinysa.org/wiki
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Erik Kaashoek
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#19681
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Re: Manual fault finding
What you are observing is indeed possible as the switch can fail in?different ways
--
Designer of the tinySA
For more info go to https://tinysa.org/wiki
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Erik Kaashoek
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#19680
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tinysa ultra attentual and signal level fail
Hi
I bought tinysa ultra from facebook. It fails attentuator and signal level. Can it be fixed? can it be used as a signal generator?
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a4notebook
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#19679
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Re: Manual fault finding
Hi Erik,
yes i performed the manual routine and think it is useful. I have a low signal level on my Ultra 407, down by 40 dB, i.e. at -75 dBm. Now your manual says that even with a bad RF switch, if
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heinrich
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#19678
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Re: Interval Triggering working great (apology to Erik)
Comment regarding the interval time of 32.6msec that I used. ?An exact multiple of 1/60 would have been 33.3¡..msec but to get a stable display I had to set it to 32.6msec. ?Difference is likely
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Donald Kirk
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#19677
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Re: What accessories do I need for a TinySA Ultra?
?If I remember right, the HP network analyzers have a ¡®skip isolation¡¯ option in their cal routine, making me think it won¡¯t make much difference in most cases - especially in a Nano.
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Terry Perdue
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#19676
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Interval Triggering working great (apology to Erik)
Hi Erik and gang,
I owe Erik an apology as not to long ago I said the interval triggering feature that Erik implemented for me a few years ago on the TinySA was not working properly on my TinySA
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Donald Kirk
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#19675
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Re: WinSpectrum III spectrum analyzer application designed for Windows users working with Tiny SA Ultra+
WinSpectrum III v3.0.1.1 ¨C Update & Fixes
Some users reported that nothing was displayed on the graph when using tinySA (basic). The issue was caused by WinSpectrum's default scan setting of 450
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Xavier Junqu¨¦ i de Fortuny
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#19674
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