How can I get information on battery voltage and transmitter signal strength? Station info is https://tempestwx.com/station/34399.
to show the battery card, go in
settings → station → advanced and toggle it ‘on’
to see rssi values : on top right click on the Tempest symbol, the card will flip over, then under, right side click the green bullet, there you have all details 
Thanks for the information eric. What are good values for battery voltage and rssi?
Regarding battery and voltage you have a nice explanation on this page related also to power saving modes.
Rssi is between 0 and -80 db (yes minus,), over -80 signal is getting to weak and you start to have dropouts or worse, broken link. The closer you are to zero the better but on average if you can do -70 or better, you’ll have no issues.
From what I see you are perfect.
Great information eric. I am so happy this unit is up and running now.
Or, to say in terms mathematicians, engineers and physicists use : below -80 dB 
the signal is to weak
So, a signal strength better (towards 0) than -80 dB is necessary and better than -70 dB would provide stable connections.
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