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Re: TinySA ULTRA LEVEL CAL -> Signal Level incorrect #ultra

 

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Erik-san

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Thank you for taking a look at the caliblation results.

I will replace the parts for U14 BGA2817 as advised.

It will take some time for the parts to arrive so I will work on it next week.

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Thanks.

Masahiro Kusunoki/JP3SRS

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From: [email protected] <[email protected]> On Behalf Of Erik Kaashoek
Sent: Tuesday, January 10, 2023 7:42 PM
To: [email protected]
Subject: Re: [tinysa] TinySA ULTRA LEVEL CAL -> Signal Level incorrect #ultra

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The calibration did partially complete, the LNA level calibration seems to have failed.
And selftest 13 fails, this is the LNA test.
It seems the LNA is not working correctly
The reason the older FW did not show this error is because the check of the signal level during LNA calibration was only introduced in newer FW version.
You can try yo replace the LNA, this has previously been done by someone so it seems to be possible.
The LNA is U14 and it is a?BGA2817, available from many suppliers for acceptable price.
Or you can contact the supplier for replacement.
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For more info on the tinySA go to

U14-BGA2817.jpg

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