Saved 'Signal Quality' Location

[Alastair L]

Hi.  My Weewx installation 4.2.0, Vantage Pro2, has been up and running great for about 6 months since I got it. I’ve noticed my signal quality dips for about 10 minutes occasionally.  Strangely the dips happened exactly at midnight each time I spotted it. Not an issue because the signal always comes right back up quickly, but I thought I would try and investigate the dates it happened to see if there is a pattern that I could maybe trace the cause from.

First I looked back through the Week, Month & Year History on the screen report. The dips don’t show up, probably because they were so short - the signal line shown is a continuous straight rippling line near 100%.  So I looked through the data tables in weewx.sdb, in particular archive_day_signal1 (through signal8) which is where I thought the signal quality data would be stored, but none of the fields are populated other than 'rowid' and 'dateTime'. I’m obviously looking in the wrong table because signal quality is stored somewhere.  Any idea where I can find the daily signal quality data?  Many thanks.

[Tom Keffer]

For the Vantage stations, signal strength is stored in rxCheckPercent. Use the name archive table, not the daily summaries.

My brain recalled Luc once having something to say about this. I think it was this thread from 2016. Something about the console emitting wild numbers at midnight when it resets the number of received packets.

On Sun, Mar 7, 2021 at 6:25 AM Alastair L <ajan...@gmail.com> wrote:

Hi.  My Weewx installation 4.2.0, Vantage Pro2, has been up and running great for about 6 months since I got it. I’ve noticed my signal quality dips for about 10 minutes occasionally.  Strangely the dips happened exactly at midnight each time I spotted it. Not an issue because the signal always comes right back up quickly, but I thought I would try and investigate the dates it happened to see if there is a pattern that I could maybe trace the cause from.

First I looked back through the Week, Month & Year History on the screen report. The dips don’t show up, probably because they were so short - the signal line shown is a continuous straight rippling line near 100%.  So I looked through the data tables in weewx.sdb, in particular archive_day_signal1 (through signal8) which is where I thought the signal quality data would be stored, but none of the fields are populated other than 'rowid' and 'dateTime'. I’m obviously looking in the wrong table because signal quality is stored somewhere.  Any idea where I can find the daily signal quality data?  Many thanks.

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[Alastair]

Hi Tom

That's perfect! many thanks for your reply.

Alastair

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