Power Etiquette?

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AC0ZG
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Joined: 2012/02/26 - 10:07
Power Etiquette?

I may have missed it, but I haven't found anything saying if there is a limit to the power that should be used for WSPR. Given that WSPR stands for "Weak Signal Propagation Reporter", it probably would not be a good idea to run WSPR at 1500 watts.

Anyway, there are various things that can be determined from using WSPR, and the common usage is for people to be constantly running it at a fixed low power so that people can observe changes in propagation. However, an alternate use is just to determine "who can see me?". The answer to that might depend on power and is particularly interesting when installing a new antenna or other change in equipment. In those cases it might make sense to run at various increasing power levels.

Checking the spot database there are actually a few people who have run WSPR at 100, 200 or even 1000 watts. Is that OK? Is there a point where too much power interferes with reception of other WSPR transmitters? Do people start getting upset when someone runs WSPR at a certain power, and if so, what is that level?

John
AC0ZG