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Comment by joshmn | Hacker News Reader

I'm still baffled that I get better service in the middle of a lake in the Boundary Waters Canoe Area Wilderness than on the shore. I tried T-Mobile for service, I tried Verizon, and I tried AT&T, and for whatever reason, I could run a decent speed test in the middle of many lakes, but not anywhere else.

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Fresnel zones are weird. Radio waves don't always behave like line-of-sight would suggest. So out on the water, you might be farther from the tower as the crow flies, but there may be less interference, obstruction, multipath error, etc.

Also, water specifically has good propagation characteristics. (Salt water is best, iirc.) At least, I think that's true for the longer wavelengths more typically used with HAM radio. I don't know if it holds for microwave-ish frequencies like cell phones would use.

Interestingly the ARRL distance records have several "rain scatter" propagation entries at higher frequencies...

https://www.arrl.org/distance-records

Back in the day when we had a VHF/UHF TV antenna on the side of the house I noticed the quality varied with the tide. Our house were 15 meters or so above sea level and the TV tower were on the other side of the fjord. Some channels we could only watch during high tide.

The network techs at my telco tell me that Cell towers hate trees and that is why I have no service at my home except intermittently on the second floor since I live along a well-treed river at the edge of a coverage area.

It makes some sense to me, just as antenna folks jokingly call humans bags of water trees are ... bags of water with infinity tiny appendages that are constantly in motion in the slightest breeze.

Less network congestion probably? Maybe something in the area is causing interference on the mobile frequencies.

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