oil city

Easy wire antenna for 40-20-10 meters - PE3HMP project of a triband wire antenna for 40 20 10 meters band, made using home made coils

Coil loaded dipole for 80 meters - Coil loading of an 80m Dipole for restricted space. Here's a method that may allow you to fit that 80m dipole into your suburban backyard by VK3JEG

PY1UNU dipole for 80 meters - A dipole with coils for 80 meters band in portuguese.

Inverted V - Described is a simple inverted-V antenna which, when used with a balanced ATU, can be used on all the main Radio Amateur HF bands (80, 40, 20, 15 and 10m). The cental support is made in such a way that the wire can be coiled up for storage when the antenna is taken down.

Easy tuning an building of traps  ^updated - A new and simple method for tuning traps. You need 2-3Watt of your TRX and two homemade coupling coils by DK7ZB

QRP Antenna 80-40-20-15 End Fed Antenna - A long wire antenna that will load up on 80, 40, 20 & 15 meters without an antenna tuner and without balun coils

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.

Base Loaded 160M Half-Sloper Antenna - K0EMT 160 meters sloper antenna

Single Coil Z Match - The simple Z match tuner simplified, article by Lloyd Butler VK5BR

W7GDY TriCity Amatuer Radio Association - Emergency communication is the cornerstone of this organization with the development of operating teams to provide volunteer backup emergency communications support to the cities of Goodyear, Avondale, Litchfield Park and surrounding areas

K7LHC London Bridge Amateur Radio Club - Lake Havasu City Arizona USA

Saratoga Amateur Radio Association - The Saratoga Amateur Radio Association provides emergency communications for the City of Saratoga, and promotes amateur radio in the community.

Twin City Amateur Radio Club - Champaign-Urbana Illinois

W8MRM The Motor City Amateur Radio Club - Motor city radio club, mcrc, w8mrm

WCARS - Wright County Amateur Radio Society - The Wright County Amateur Radio Society meets monthly in the city of Buffalo and has several operating events each year including Field Day and the Heart Of The Lakes Triathlon.

K7NBB - We are a simplex radio club operating on 146.415 out of Reno, Carson City and surrounding areas.

Rodeo City Radio Club - Ellensburg, Kittitas County, Washington, USA

LU3DKV Radio Club City Bell - Ham Radio Club from City Bell, in Buenos Aires province Argentina

Lance Johnson Engineering - Manufacturer of ham radio accessories, D-LAY-5 Rotor Brake Delay, ECP-1 Remote 40-80-160 Preamplifier, GP-1 Radial Buss , Kansas City Keyer Elizabeth CO

Windsor Exports - Supplier and exporter of generator, diesel generator, petrol generator, industrial generator, silent generator, power generator, electricity generator, gas generator, air cooled generator, gensets 1kva, 2kva, 5kva, 10kva, 50kva, 100kva, 250kva

Kansas City D-STAR Information Priority listing - Kansas City DStar Users Group

K7BON - Callsigns in Oak - Your call sign, name or specialty item professionally crafted in oak (two thicknesses available), from a computer designed pattern and finished in up to 4 coats of Formby's Glossy Tung Oil.

Batteries and QRP - Thanks to the popularity of cell phones, laptops and other personal electronic devices, the battery industry has been market-driven to produce higher capacity batteries in lighter weights than previously possible with yesterday's chemistries.As a result, a wide variety of battery types are available to the outdoor QRP operator.

Coaxial Cable's specifications - A table with Loss in DB/100m , Max power in Watts, Diameter in mm , Velocity factor (VF)

Corrosion protection for tower structures. - Galvanic action. Corrosive effects of soil conductivity.