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Radio Propagation


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

The May/June digital edition of ARRL’s On the Air magazine is now available. Read it and other ARRL digital publications by browsing to the ARRL Magazines page. In this issue:

  • Tips for better repeater operating
  • Understanding modulation
  • Go-kit basics
  • Building a portable antenna mount
  • Shopping for a mobile radio

…and much more!

You can also read the issue on your Apple, Android, or Kindle device by ...

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