lightning counter

EH antennas and CFA antenna - Many antennas function because of common mode currents, rather than working in spite of them. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise.

Attic Antennas  ^pop - Attic antennas can work better than you might think, some of mine work as well as their outside counterparts

All about Lightning protection - Thierry LOMBRY, ON4SKY, gives advice to amateurs about lightning protection of an hamshack, including pictures and links.

Aceco - Frequency counters, bug finder, RF testers, distributed by WiMo Antennen

Optoelectronics - DTMF, RF, decoders receivers and accessories icluding computer interface boards, frequency counters, tone decoders, spectrum sweeper and nearfield receivers

Harger Lightning Protection, Inc. - Harger Lightning Protection is a full line supplier of lightning protection and grounding equipment, servicing the lightning protection, communications and electrical industries.

Electronic speciality products - Lightning Protection Products For Ham Radio And Computers

Delta Technology - DELTA Technology is specialized in the lightning protection field, surge arresters, lightning counter.

Rabun Labs - Lightning protection for electronic equipment

Automatic Lightning Protection. - Lightning Rods - Protect your family, home, and property. Top quality copper and aluminum equipment.

IMEN PAYA Eng. Co. - Supplier and manufacturer of earthing & lightning protection equipment. Also provider of all electrical instrument, based in Iran.

Malaysia Surge Protection - Global Lightning Technology - Malaysia lightning Malaysia surge protection system

OAK Hill - CW transceiver kits, qrp, frequency counters, qrp wattmeters

Frequency Counter for VHF/UHF - DFD4A for bench top test equipment, has a built-in prescaler good to more than 3 GHz.

International Components - International Components Corporation has an extensive range of electronic components consisting of audible signal devices, speakers, microphones, capacitors, electron tubes, connectors, and accessories designed in recognition of the diversity of applications and special characteristics encountered by designers in today's complex world.

NovaLynx Corporation - "Instruments & Systems for Weather & Water Monitoring; weather stations, wind alarms, sensors for wind speed, wind direction, precipitation, temperature, relative humidity, barometric pressure, solar radiation, evaporation, rain & snow gauges, lightning detection."

TACLog - Free format input, User selectable usage of reports, counters for DXCCs, WWL, DOK/UK Counties/CQ/ITU/States/Provinces and more

Audio Spectrum Analyzer - OscilloMeter  ^pop - Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.

Firestik Library - Information regarding CB radio and the problems you may encounter during installation and use of your system.

40MHz Frequency Counter Module - Design for a very low cost 6-digit frequency counter module using of the shelf components

Walford Counter Kit Frequency Counter Kit Construction - homebrew a frequency counter by M1HOG

50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter

Station Lightning Protection - This website outlays the basic knowledge, safe design and installed equipment that are employed in the lightning protection system of a US Coast Guard Auxiliary Radio Facility. This should also be relevant to the Civil Air Patrol, MARS, and Amateur Radio stations who provide emergency communications capability for public safety or the military

Lightning Primer - Lighting protection document by Glen E. Zook, K9STH

QRP equipment - Simple QRP rigs, Transceivers with single side band direct conversion receivers, Receivers, Frequency counters for QRP