propagation website

NVIS Antennas and Propagation - Understanding Amateur Radio NVIS Antennas and Propagation

Alfa Tango Netherlands - Website of the Dutch AT group

Check DX Propagation with Beacons - W0RW article that guide you to using beacons to determine dead bands or upcoming propagation openings.

W0ERE Beacon - To provide a continuous signal on the ten meter amateur radio band for propagation-related monitoring

WE4S 10 Meter Beacon 28.221 Mhz - Beacon website of WE4S, Grady Donaldson, located in McDonough, GA. EM73TM.

10 Meter Synchronized Propagation Beacon Project - Project started by several 10 meter beacon operators in an ad-hoc fashion to experiment with operating 10 meter beacons similar in concept to the IARU beacon project

SKØCT/B - Propagation Beacon, Sweden,Stockholm,Sollentuna

K7UAZ University of Arizona Amateur Radio Club - Welcome to the website for the University of Arizona Amateur Radio Club, K7UAZ!! We are a group of ham radio operators enjoying a great hobby! Click the meeting info tab above to find out about our meetings!

WØMR The Mining Amateur Radio Club - Welcome to the w0mr website, 3m club of st. paul, mn, amateur radio club

K7SKW Mt.Baker ARC - Mt. Baker Amateur Radio Club Website

Operating NVIS - Near Vertical Incidence Sky Wave (NVIS) Propagation, PPT presentation by Marc C. Tarplee, Ph.D. N4UFP

Balloon Fox Hunting - website of the Balloon Fox Hunting on 80 and 2 meters. Before well known as the Dutch Balloon Fox Hunting or the Hobbyscoop-hunt

EchoIRLP.it - Italian website dedicated to the EchoLink and IRLP by IK2XYP

Radio Frequency Beacon Finder - This project is a radio frequency receiver that will help the user the trace the direction and distance of transmitter beacon(s) operating at 433MHz frequency by Cornell Univerity

Understanding Amateur Radio NVIS - Understanding Amateur Radio NVIS Antennas and Propagation, derived from The ARRL Antenna Book and QST Articles

What is NVIS - differences from groundwave propagation

NVIS Propagation maps - Maps and propagation indices

NVIS Propagation - Kingston Amateur Radio Club Articles Dave Lawrence, VA3ORP

Using the QST propagation charts - Notes on using the QST propagation charts to determine propagation conditions

Understanding propagation numbers - Quick reference table on understanding A K SFI indexes and how can be translated in usable frequency opportunities

Mid-Latitude Sporadic-E (Es) - This article was originally written in response to a brief review of the basics of sporadic-E

Spotless days around solar cycle transition - An interesting perspective of the transition from one solar cycle to another is given by exploring the days with no reported sunspots.

BeamFinder - BeamFinder is a software tool designed to conduct analyses for radio amateurs interested in radio propagation studies. It provides a large 2500 x 1800 pixel screen map of the world which displays calculated results from sophisticated models, dx data and other sources of information

Tools and Links for RF Power Amplifier Builders - This document lists a few tools, documents and websites which are valuable in the design and construction of amateur RF power amplifiers. The list is small but it represents a good starting point for the amateur amplifier builder.

Tools4SDR : SDR Collaborative website - Home page of Tools4SDR. Tools4SDR is a collaborative website about software defined radio (SDR), the universal software radio peripheral (USRP), opportunist radio, cognitive radio, software toolboxes for research and teaching in digital communications.