Search

Radio Propagation


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

The 2020 ARRL Repeater Directory® is now shipping. It includes “crowdsourced” listings contributed by users, repeater owners, and volunteer frequency coordinators. This means more listings that are and updated more often. With 21,000 listings, it’s the most complete printed directory of on-the-air repeaters, covering repeater systems throughout the US and Canada.

Repeater systems are listed by s...

Read more