[RFI] Base Power Company

K5QX k5qx at sjpoodles.com
Wed Jul 9 08:55:03 EDT 2025


Thank you Rick, Dave, and Scott for the comments.

Scott, since my neighbors installed their battery system around 9 months 
ago, I have not observed any increase in interference sources using any 
of my station antennas. I took this as an indication that Base Power 
systems were not going to be especially disruptive (my neighbor's house 
is directly across the street from me).

My thought process for initially using  the SA with its built in antenna 
was similar to what Dave mentioned that I would hopefully get some time 
of rough indication of the difference between background noise level and 
any RFI from the inverter. I definitely did not expect to use it to 
measure exact values.

The fact that I don't have any noise issues with the system around 100 
ft away doesn't mean that I won't have an issue with a system installed 
on my patio within close proximity to my antennas. I also believe that 
observing the rapid fall off of the inverter noise as I moved away is a 
positive indication but as has been mentioned, the inefficient antenna 
on the SA will show a quicker drop off than with an antenna tuned for 
the frequency of interest.

I also do have a Tecsun PL-660 which I want to take over but to be 
completely satisfied that t he system will not be a issue, I will most 
likely have to do what Rick initially mentioned.

Thanks again for all the responses, they have been very helpful

73,

John K5QX


On 7/8/2025 11:51 PM, K9MA wrote:
>
>
> I'm not sure any receiver or SA is likely to hear "band noise" with a 
> very small, untuned antenna. A good test would be to see if it can 
> hear any of the weaker signals you can hear with a larger antenna.
>
> 73,
> Scott K9MA
>
>



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