bt 703555 battery

The Doble L antenna for 160 and 80 m - The antenna has the form of a C, it is fed in the centre of the vertical section which is abt 20 m high by HB9TPL

7 MHz Dipole at VK1ZKD - This article documents an unobtrusive antenna for operation on 7MHz, primarily for contacts with stations at up to 1000Km range.

6 element UHF Yagi antenna - A standard 6 elements design scaled for UHF application. All material used in this project are easily obtainable tubes and rods which is limited within a total budget of $18.

The Gain of an Endfire Array - This article looks at the maximum theoretically possible directive gain that could be obtained with an endfire array of given length or number of elements, and compares this with practical results in the literature.

The Grid Yagi for 144 Mhz - The Grid Yagi (or Grid Quad) is a high performance yagi antenna that can be built with readily obtainable inexpensive materials. Described here is a 6 element 2 meter version with a boom length of about 1 wavelength, shown

Antenna Measurements - The electrical characteristics of an antenna that are of interest to obtain by direct measurement are the frequency at which the antenna is tuned, the gain and radiation pattern

W3DZZ MkII Antenna - A W3DZZ project by Maidstone Amateur Radio Society

W3DZZ multiband dipole - The multi-band trapped dipole is resonant on approx 3.7, 7, 14, 24 7 28.5 Mhz. The overall top length needs to be approximately 32.9 Meters

K8BTP Salem Area Amateur Radio Association - SAARA is an association of radio amateurs organized for the promotion of Amateur Radio communication and experimentation. We provide communications during disasters, emergencies and community events

W3PGH Greater Pittsburgh VHF Society - A Nonprofit Society Dedicated to Furthering the Interest of VHF/UHF Operation in the Greater Pittsburgh Area.

West Allis Radio Amateur Club, Inc - General interest club with a slant toward contesting. Sponsor of the Wisconsin QSO Party

K3STR Sussex Tech High School - K3STR, the club station of Sussex Technical High School, Georgetown, DE, and the Sussex Amateur Radio Association invite you to attend the Sussex County Hamfest.

BK Precision - Power supplies, electrical testers, battery analyzers, cable tester, rf generators, spectrum analyzers, Digital/Analog Oscilloscopes, Multimeters , attenuators, frequency counter

The Hustler 5-BTV review - G0KYA experience on hustler 5 BTV antenna

House of Batteries - House of Batteries is a master distributor and custom battery pack assembler for every major battery manufacturer in every battery chemistry for every electronic application

Mi3nie - HF wire antennas toroids, connectors and accessories, online shop

Malux - El-Tele-Data - Accessories, Antennas and Battery chargers. Radiators, Repeaters, Yagi, Mag, Car, Tetra, Marine, Multiband, Brackets, Mounting accessories, cables and connectors, radiokits, special cables etc. Based in Finland

Pihernz - Spanish radio dealer offer accessories, antennas and battery chargers, mounting accessories, cables and connectors, radio kits, power supply, pmr, vhf/uhf radios, all products for CB, ham radio and SWL.

Free Sun Power - Free basic and advanced system design tutorials for every component and aspect of solar power. Plus system sizing calculators, battery bank calculators and wire size calculators

DIY: Solar Powered Battery Rechargers - Let the sun juice your battery habit

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.

Battery Equivalents - Cross reference thousands of consumer, watch and Amateur Radio Handheld batteries

Nicad Charger for car - A Nicad charger from the car battery by DL6NEE

Bluetooth Audio and Amateur Radio - Bluetooth headsets are very common with cell phone users. As such, many amateurs may already own a Bluetooth (BT) headset. So why not use it with amateur radio?

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.