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ZMV Spiral antennas - An experimental antenna similar to the TAK spiral antenna was evaluated for SWR response over the frequency range of 7.0 to 7.3 MHz, or the 40-meter band.

Multi-loop Rectangles and Compact Arrays - VHF antenna array that packs a lot of gain into a small volume article by N2DT

160m Mobile Aerial by M0VEY - Homebrew 160m mobile antenna

Homemade Arrow Antenna - EA4CYQ portable VHF UHF Yagi antenna designed for satellite operations.

The IOio Antenna - The IOio antenna and the satellites, a custom portable antenna done with squares both UHF and VHF by EA4CYQ

Five eighths wavelength vertical antenna - The basics of a five eigths wavelength vertical antenna, a form of RF antenna widely used for mobile radio communications applications

Quarter wave vertical antenna - About the basics of the quarter wave vertical and ground plane antennas that ares widely used for medium wave broadcasting, mobile radio communications applications and many more.

Longwire Horizontal Antenna - An SWL longwire horizontal antenna

Golf Alpha India Grupo Aguilas Internaciolnales - Radio Club From Nueva Rosita Coahuila Mexico

Ramblings by K6RJ Priority listing - Ramblings by K6RJ, thoughts from my warped mind about software-defined radio (SDR) and amateur radio in general.

Digital mode journal - Digital mode opeartion dialy blog

Amateur Radio Free and Clear - Amateur radio group of fair and balanced operators based in Kentucky having so much fun that it has to be illegal.

ASC Signal - Global manufacturer of Satellite Earth Station, Air Traffic Control Radar Antenna and High Frequency Antenna products for broadcast, government and enterprise satellite communication applications.

Naval - Marine antennas and systems for navy, merchant shipping, work boats and fine yachts

Ham Radio Grid Square Locator Map - Amateur Radio Ham Radio Maidenhead Grid Square Locator Map, by Address, Call sign or Grid Square, using google maps

Digital Modes Information Page - An overview of digital HF radio operating modes includes a sample audio recording of each digital mode by WB8NUT

Other Digital Modes - Whats new on ham radio with digital modes? DRMDV

Meteor Shower Calendar - This lists the major shower activity and is compiled from information available on the net

MorsePal - Making Morse Code friends on and off the air. - This website helps you connect with others interested in using morse code for fun.

TS-870S 4Khz Filter Modification - The TS-870 has a 3KC stock filter, swaping out this filter for the Inrad 4KC filter result better sensitivity on receive

Ham Radio T-Shirts - Quality ham / amateur radio t-shirts and decals by letsmakeadecal.com

National Semiconductor - National Semiconductor Corporation, component database

Software Defined Radio Tutorial - Tutorial and information about the basics of the software defined radio, SDR, and links of software defined radios to JTRS, and general SDR receiver technology.

KK7UQ Interface - Complete design and construction manual of the mode II, printable labels, templates and info to interface digipan

Radio Interface - Interface that perform several different radio interface functions by KD5EIS