propagation prediction

N1KXR/B - Ten-Meter Propagation Beacon - N1KXR/B went on the air at 21:00 Hours EST on Saturday, November 22, 2008 and has been in continual operation. Located in Northampton, Massachusetts [USA] (grid square: FN32), it transmits 24/7/365 and is coordinated with the IARU Region 2 HF Beacon Coordinator.

K6FRC Beacons - 50Mhz 28Mhz 13.5Mhz amateur radio propagation beacons by K6FRC

The VE3TO Radio Propagation Beacon - The VE3TO/B beacon has been on the air since 11 September 2006 active on 10132.0 kHz

Propagation on 137 kHz - Propagation in the LF-Band

Electromagnetic Wave Propagation by Conduction - A sacrilegious re-examination of current wave propagation theory and proposal of a new, more comprehensive and logical alternative.

WaveGuide  ^new - Real-time HF propagation conditions for iOS. WaveGuide ia a ham radio utility for determining HF propagation conditions at the touch of a finger.

DxSpot - DxSpot is your mobile access into the Amateur Radio DX cluster network. With DxSpot you can connect to the DX cluster of your choice. The internal database supplies the connection parameters to over 300 DX clusters. Once connected enjoy formatted table views of DX spots, DXCC information, connected users, cluster announcements, colorized WWV propagation data, and keep current with the latest DX news.