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[DX] Lisää "stratwarm"ista
Lainaus NRC-listalta:
"The practical effect of stratospheric warming is to elevate the lowest
useable frequency (LUF) on HF circuits with control points within areas
affected by the warming.
None of the references I searched cited specific frequencies affected by
stratospheric warming, but inasmuch as the LUF is affected, I would
assume the affect is limited to the lower end of the HF band."
Ymmärtäisin tämän niin, että LUF nousee niillä alueilla, joilla stratwarm
vaikuttaa. Eli käytännössä keskiaallot ovat aika tukossa NA:han päin, jos
Ft. Collins ilmoittaa stratwarmia?
73, MR
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