austin, mn

G7LRR Low Band Antennas - G7LRR Amateur Radio Site,160m Helical Antenna

Squalo 6M horizontal omni antenna - An almost Omni directional horizontal antenna for six meters by G8UBJ

The zeppelin antenna for 50 Mhz - A end fed antenna used on the big zeppelin airships (thus the name ZEPPELIN antenna) of the 1930's where the wire trailed behind the dirigible.

Build a 2.4GHz Vertical antenna  ^pop - Building a 2.4GHz vertical collinear omnidirectional antenna

Build a hanging dipole for 2 metres - Described here is a simple omni-directional, vertically-polarized dipole for two meters. Made from coaxial cable, it can be rolled up and stored in a small container

The full-wave loop antenna - These omnidirectional antennas offer Horizontal polarization, and about 2.1 dbd of gain. They are much quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna.

Quad antenna calculator  ^updated - To get the dimensions for your quad, all you have to do is type in the center frequency of the range where you talk, or the frequency you use most and then click the Calculate button.

The Lindenblad antenna - The ultimate satellite Omni Antenna by Howard Sodja, W6SHP. The Lindenblad antenna consists of four half wave folded dipoles slanted 30 degrees to the horizon, oriented 90 degrees to each other in azimuth, spaced 0.3 wavelength apart

Parabolic Discone antenna - This is the highest gain omni design the world may ever know having wide bandwidth

Common vhf amateur radio antennas - Plans and drawings of common amateur radio antennas, like jpoles, copper cactus, super jpole, omnidirectionals and quads

FM Transmitting Antenna - The antenna system about to be described here is a superset of the classic "J-Pole" design, a 4-bay J-Pole antenna

JA1YPA Omnibus Contest Club - JA1YPA is located at top of the hill in western edge of Yamizo Mountains in Nasu-gun, Tochigi Prefecture, some 130km north of Tokyo

W6YX - Stanford Amateur Radio Club - The Stanford Amateur Radio Club (W6YX) consists of about 50 students, staff, faculty, alumni, and community members

W1AF - Harvard Wireless Club - Harvard wireless club, harvard's amateur radio or ham radio club. founded in 1909. welcome to harvard affiliates, alumni, prospective students, and their parents, as well recent contacts. information about club getting started radio. confirming contacts qsl. flea market. history.

Brainerd Area Amateur Radio Club - Ham Radio at its best in the Lakes Area of Brainerd, MN, USA

Crow River Amateur Radio Club - Hutchinson, MN

Gopher Amateur Radio Club - The gopher amateur radio club University of Minnesota

Minnesota - Willmar Police & Fire-EMS Scanner Feed - WILLMAR MN KANDIYOHI CO. Police fire EMS highway dept.

3840 Audio Archives Priority listing - 80/75 meter Amateur Radio recordings via various online tuners.

ON0MTV Streaming ATV - Live ATV video streamning 1255 Mhz

6m technical docuemnts - A collection of scanned diagrams and designs, documents and modifications for 50 Mhz ham radio equipment

A new method of radio direction finding Priority listing - A method of finding radio sources with antennas based on omni-directionality (the less directional the better coverage). Uses energy levels and some sophisticated math (encompassed in a free software download on the site) to find x,y,z coordinates of the fox relative to the center of your antenna array. Can be overlayed on a GPS map to help you locate in real-time.

Radio Sport Canada Zone to Zone propagation - ZoneProp produces a 40 zone by 40 zone matrix that is updated hourly at approximately 20 minutes past the hour. The intersection between a row and column gives the band on which a constestant in the zone represented by the row is mostly likely able to contact an contestant in the zone represented by the column.

KI0LE Amplifiers and Preamps - Picture gallery of vhf uhf amplifiers

A simple VOX circuit - Here is a 3 transistors 6 diodes circuit that is a Voice Operated Tx PTT control as well as an ANTI VOX circuit to stop mis-operation from Rx noise by G8MNY