FM DX Antenna Company
- FM antennas for reception and transmitting on the FM broadcast band, Weather Band antennas, Wireless microphone antennas, and products to improve reception for the FM antenna, weather band radio antenna, and wireless microphone antenna.
- STAR-H Corporation specializes in extremely wideband dipoles and compact low-profile antenna systems for military, emergency management, commercial operations and consumer wireless applications.
Cross Country Wireless SDR Receiver
- SDR Receiver a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations.
Version 2 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers.
Introduction to Digital Modes
- Wireless Society of Southern Maine, Digital Modes Page, introduction to amateur radio digital modes, including FLDIGI, PSK31, RTTY, high speed CW, Slow Scan Television, HF Weather Fax, WeFAX, MFSK16, OLIVIA, G-TOR, AMTOR, MT63, Digital SSTV, Frequency Key Shifting, and more
WS1SM CW Page
- Wireless Society of Southern Maine CW Page, information on the topic of wireless telegraphy, cw operating, morse code history, telegraph keys, key collecting, code proficiency, learning the morse code, and cw-related links
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