RF coverage
Web based service designed to provide a fast and simple RF propagation prediction. Powered by Splat and Google Maps.
Archive for the 'Propagation' Category
Small Antennas for High Frequencies
This is about Small Antenna types and their properties which can help choosing proper antenna for high-frequency wireless communications as: two-way radio, microwave short links, repeaters, radio beacons or wireless telemetry
IPS – HF Systems MUF maps and prediction charts
These pages provide general propagation advice for HF communicators. Information available includes inferred global propagation conditions, real time HF fadeout coverage charts, regional ionospheric vertical MUF maps and Hourly Area Prediction charts for Astralia and Asia, Europe and North America
E-layer & Sporadic-E
Two modes of propagation at 50MHz E-layer & Sporadic-E by Ken G4IGO
VHF Propagation Maps
Experimental maps that show real-time VHF propagation derived from analyzing data gathered from the APRS-IS network.
Hourly STD Solar and Geophysical Report
Boulder K-Indices, Planetary K-Indices, 10.7 cm solar radio flux updated every 30 minutes by Canada’s Space Weather center
The DXrobot – Spots e-skip and aurora alerts
Automatic e-skip and aurora alerts via email or SMS, it sends also latest dxspots via email.
The 160-Meter Band: An Enigma Shrouded in Mystery
Lights on why 160 meters is so unpredictable and what’s being done to reveal its secrets
Near-Real-Time F2-Layer Critical Frequency Map
This map can be used to determine the frequencies that will always be returned to the Earth. Transmitted frequencies higher than the indicated contours (which are given in MHz) may penetrate the ionosphere, resulting in lost power to space. The map shows the radio auroral zones as green bands near the northern and southern poles.
Understanding Solar Indices
By Ken Larson KJ6RZ, a complete guide to understanding soloar indices and values.
6 Meter DX Map
6 Meter DX Map with reports from the VE7CC DX Cluster
Solar Cycle 24
Current status, prediction, solar weather for the solar cycle 24 by VE3EN
Solar Cycles and Earths climate
The past and future of the Sun’s solar cycle and possible impact on the Earth’s climate.
Radiowave Propagation Center
High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, sunspot activity reports, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines.
Solar Cycle Progression
The charts on this page depict the progression of the Solar Cycle. The charts and tables are updated by the Space Weather Prediction Center monthly using the latest ISES predictions