Search

Radio Propagation


Solar X-rays:
Status
Geomagnetic field:
Status
D-Region Absorption
Prediction:
Status
Created by PA4RM

A recent article in The New York Times reported that many garage door openers and keyless vehicle entry fobs in an Ohio town near Cleveland mysteriously stopped working. While the article invoked The X-Files and hinted initially that a NASA research center somehow could be involved, the cause was not so much mystifying as arcane.

“Garage door repair people, local ham radio enthusiasts, and othe...

Read more