[RFI] Base Power Company

[John Warren]

Has anyone in Texas installed whole house backup batteries from Base 
Power in Austin, Texas? I am considering installing their batteries and 
am looking for any insight on potentional RFI issues. My neighbors have 
their batteries installed and they were kind enough to allow me to take 
some rough measurements.

I used a TinySA spectrum analyzer with the built-in telescoping antenna 
and did find that at the inverter enclosure for each battery there was 
around a 10 dB increase in noise from around 7 to 10 MHz and another 
similar peak in the area of 14 MHz. The noise level dropped quickly as I 
moved away, disappearing completely around 3 to 4 feet from the inverter 
enclosure. Around the other sides of the battery and conduit that 
connected to the house, there was no excessive noise.

I plan on going back over with a portable AM/FM/SW radio  and the TinySA 
again to make some better measurements and document what I find.

Thanks for any input anyone may have.

73,

John K5QX