cte titan 500

Petlowany Antennas by K6NO - WorldRadio Article on Petlowany antennas base on this principle: if a length of wire is wound into a spiral-shaped coil and excited by a radio frequency current connected to the innermost portion of the coil, it will then, and only then, exhibit RF characteristics that closely approximate those of a resonant linear wire of the same length

Coax Square antenna - N0KHQ Moxon rectangle for 17 meters, constructed from RG-58 coaxial cable

Multiband HF antenna - A multiband hf antenna for restricted spaces covering 80 40 20 15 meters Based on the VK2ERG shortened 80M dipole

Transmission lines - Transmission lines and measurement of their characteristics

A Stealthy HF Coat Hanger Antenna - A multiband stealth antenna. Tuner is required. The antenna is made from a $15, 500 ft roll of black #14 insulated stranded wire, about 120 small black wire ties, and maybe 30 or so large black wire ties.

Horn antenna for AO-40 by AA2TX - These notes provide the directions for constructing a Cardboard-box antenna for receiving the AMSAT OSCAR-40 satellite on 2.4 GHz (S-band.) It is constructed from two cardboard cartons, aluminum foil, and packing tape. No coax, connectors, or soldering is needed.

Antennas for the Space Restricted - This article shows that it is possible to operate successfully from a confined space with antennas for 2 10 and 80 meters band

W4INF Hidden House Loop Antenna - If you live in a restricted subdivision, you need to make the most out of it. This loop antenna is balanced line fed and works 40m-10m, does decent on 80m.

VHF/UHF Folded Diplole - This is a two element colinear design for vertically polarized radiation. It may be constructed for use on either 2m or 70cm

K5DDJ's 10 Meter Beacon - Operating 24/7 on 28.2485 Mhz transmitting 500mw into a 1/4 wave GP vertical antenna. Location is in San Antonio, Texas

K0KP 10 Meter QRPp Beacon - At 28.2125 MHZ here's "the Little Beacon that could!" This little homebrew 500 Milliwatt QRPp beacon has been heard around the world

OK0EF QRP Beacon - 10134 kHz beacon power is 500 mW Male Pritocno village, locator JO70BC.

Worked All States (WAS) by ARRL - The WAS (Worked All States) Award is available to all amateurs worldwide who submit proof with written confirmation of having contacted each of the 50 states of the United States of America.

I2MQP DX News - DX news bullettin collected and edited by mario i2mqp

You Might be Addicted to Ham Radio if - A funny page on hams habits.

Fortis Wind Energy - Fortis is the world leader in design and manufacturing of high performance stand alone and grid connected wind turbines in the range from 800 watt up to 10 kw.

WorkedGrids - WorkedGrids is a Windows application that displays a map showing the amateur radio grid squares contacted and logged in using a third-party logging program. WorkedGrids uses colors to display information on a per-band basis. Up to four bands can be displayed concurrently by VE2ZAZ Bert

Low Frequency operations by W3EEE - A squint at the world of LF This website was initially thrown together to provide ready availability to data being collected from the measurement of a transatlantic LF (Low Frequency) path.

Operating Meteorscatter - Meteorscatter (MS) describes a propagation mode whereby the signal is reflected from rather small ionised patches in the E-region of the ionosphere.

Yaesu FTDX-5000MP QST Review - QST review of the Yaesu FTDX-5000 provided by IV3VNY

MultiDem - USB LSB AM Modem (Modulator/Demodulator) for SdR and DSB (direct conversion) transceivers by F6CTE

PacTerm for Windows - PacTerm for Windows is a commercial host mode terminal software for the Kantronics™ TNCs takes advantage of the true multitasking capabilities of Windows.

Anderson PowerPole Connectors - This standard assures that any radio can be connected correctly to any power supply. Here you can find some assembly notes

Economical keyer - Using the PicoKeyer chip. Features a 60 character memory, setup & message entry using a paddle and no battery is required to retain the memory.

W7ZOI / K7TAU Spectrum Analyzer - W7ZOI/K7TAU Spectrum Analyzer Constructed by N8QOH