Can high voltage line interfere a Wireless network?

Hi all,

I'm doing a wireless network between a house and a repeater installed in a building the approximately 2Km. Close the house about 100m of distance, between the house and the repeater has a high voltage line, I have a good signal about 70%, but the download speed is very slower. Can the High voltage line are interfering?

T+

Yes it can but it will affect the %, so if you have 70% thats pretty cool, your download speed might be due to problems with the provider