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Re: My TinySA appears to be bricked. #bug_report


 

On Sat, Dec 26, 2020 at 09:12 AM, stefan baartman wrote:
Hi Erik,
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>The max continuous input level is +10dB?
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That most likely explains how I broke it.
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Thanks for the Specifications, they should be required reading for people like myself.
Stefan,
? Because the tinySA is so inexpensive its easy to overlook the maximum power and dc input specifications.? When a spectrum analyzer is >$500 then the maximum input specification is usually the first the first "sticker" a buyer puts on the front off the analyzer to remind themselves not to damage the input stage.? An external attenuator is a wise purchase if you work with unknown signal levels.

? I would say purchase a 2nd tinySA and use the damaged tinySA exclusively as a signal generator, but with the damaged attenuator your low output level control is shot.? If you know someone with decent soldering skills then you could have them follow the guide in the YouTube link provided by hugen and replace the attenuator chip.? You might first jumper the attenuator chip as shown in the YouTube video to verify that only the attenuator is damaged.

? - Herb

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