cambridge ny

Low cost 1:1 balun - A balun don't depend on use of ferrite beads, but use steel wool to attenuate any RF on the outer braid

Comparator-based RF switch - This is a concept paper, not a constuction article. There are too many variables to propose a one size fits all design. However, this paper should give you the basic idea how to do it

Hula Hoop Loop antenna - The concept of the "Hula Loop" came after many years of building medium wave loops of varying size, shape and performance. Usually these loops are constructed on a square wooden frame, with wire being wrapped around the periphery

K5OE, Introduction To Amateur Satellite Ground Station Antennas - There are many kinds of satellite antennas that will get you on the birds and allow you to have lots of fun

DCTL Antennas and other compact antennas - The Distributed Capacitance Twisted Loop is an inexpensive, effective, resonant alternative that can fit in a 8' tall by 12' or so wide space, like a wall, or balcony, even on 80 meters. 160 meters from an apartment, a full wave look and a cage dipole

Antennas and transmission lines - A very exaustive article on antennas and transmission lines. Covers many aspects of antennas and feed lines, in spanish

Sensitivity of Multi Turn Receiving Loops - Magnetism is manifested as a 'field of vectors', that is, any point in the magnetic field has not only a magnitude, but a direction in space. The four Maxwell equations describe how electric and magnetic vector fields behave and interact.

www.whiskyoscar.com - Dutch speaking international radio club. Established over 25 years ago. With many emigrated dutch members abroad

TOEC - TOEC was founded in 1991 by a bunch of contesters in Northern Sweden. The purpose of TOEC is to support contest related activities in as many ways as possible.

RRDXA - Rhein Ruhr DX Association - The RRDXA is the Amateur Radio Contest Club in the western part of Germany and the BENELUX-Countries

Mono County CQP Expeditions - In 2004, 2005 & 2006, after many years of very successful multi operator county expeditions, Jim (W6KC) did single operator expeditions to Mono County.

VKV zavody Contest site - These pages containing informations about contesting on 144MHz and higher bands. All informations are only in Czech language.

VKVZavody - Contesting on VHF UHF and SHF in Czech Republic

URCAT Priority listing - Ham radio club of Catalunya Spain Portal de la Radioaficio de Catalunya

The Kamloops Amateur Radio Club - The Kamloops Amateur Radio Club is a non-profit organization that has been incorporated under the Society Act. Our organization has been building and maintaining a network of Amateur Radio mountain top repeaters to enable voice and digital communications between a number of interior communities for many years.

WNYDXA Western New York DX Assocation - The Western New York DX Association is dedicated to the improvement of each member’s DX-ing skills and to helping each other become more proficient DX operators.

The Utica Amateur Radio Club - The source for amateur radio news in NY

Ham Radio Cartoons - Some funny amateur radio cartoons

Super Bertha - Superbertha is an aesthetic, rotating monopole, custom designed and built specifically to fit your needs. a superbertha can be designed to any height you need or desire. there are many benefits of a superbertha, versus a standard guyed tower.

DXTools - A small company that specializes in antennas and accessories for radio hobbyists who enjoy DXing the AM broadcast and LW bands

VHF/UHF Propagation - In the past few years there has been a growing movement from VHF frequencies (50-300 MHz) to UHF (300-900 MHz). Many, however, have found the move fraught with difficulties.

Phase Noise. - This is perhaps the most important parameter in many oscillators and it deserves an in-depth discussion on what it is, how it affects a system and how it can be minimised in an oscillator design.

Natural Radio Listening: Streaming Audio - A page about fascinating Very Low Frequency and natural radio, with lots of streaming audio links from remote receivers. Some experimental stereo pairs around the world.

YL's Touch - YL's Touch is a small QSL Card company, specializing in the creation of QSL Cards in a PDF format.

Small Unregulated Power Supply Project - Here's a simple power supply that can be used in many applications. It is not regulated , so keep that in mind for voltage sensitive devices , and of course you will need to understand how to select the correct amperage and voltage for the AC transformer.