field

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The Moxon Rectangle on 2 Meters - We often think of the Moxon rectangle as strictly an HF antenna. However, its small size and special far field pattern lend themselves to some VHF applications. So let's see how to adapt the design to 2 meters (as a popular band choice) and also see a few of the uses to which we may effectively put the design.
[ Hits: 11959 | Votes: 13 | Rating: 2.85 ]

CF and EH antennas - Crossed-Field Antennas and E/H Antennas
[ Hits: 3049 | Votes: 1 | Rating: 1 ]

J-Pole theory ^pop - The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.
[ Hits: 30319 | Votes: 26 | Rating: 6.87 ]

Travel loop antennas - PA11019 Travel loop antennas, these antennas cover 6.300 to 29.200 mHz , handle 35 Watts and have a packing size of 43 cm, ideal for fieldwork, or mobile operations.
[ Hits: 3564 | Votes: 2 | Rating: 9.5 ]

Crossed Field Antenna - The Crossed Field Antenna (CFA) is one of the applications of Correction of Maxwell's Equations which was used over 150 years ago which was proved these days that the Magnetic Field Source is only the Displacement Current not the Conduction Current . These Corrections was made by an Egyptian Doctor Engineer Fathi Kabbary , who reached the New Correct Theory which shows that the height and efficiency of the antenna doesn't depend on the wavelength
[ Hits: 2308 | Votes: 5 | Rating: 2.8 ]

VHF/UHF Yagi Antenna Design ^pop - Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna for 2m and 70cm bands. This page offers a streamlined experience for Yagi antenna design enthusiasts. It assumes prior knowledge of Yagi design principles, minimizing distractions with a user-friendly interface. Equipped with essential equations, it provides instant design feedback. Red font warnings indicate design limitations, ensuring practical results. Constraints include Gain (11.8-21.6 dBd) and Boom Length (2.2-39 wavelengths), with additional frequency-dependent restrictions noted in input fields.
[ Hits: 147433 | Votes: 1105 | Rating: 6.95 ]

HF Wire antennas - About HF Wire Antennas for field day or any day a basic wire antenna article
[ Hits: 1957 | Votes: 5 | Rating: 7.16 ]

Sheffield-live ham radio net - A friendly dx net who welcomes new comers to amateur radio and the serious dxer alike; Daily from 2000gmt on 14.208mhz. Listen the net live.
[ Hits: 5520 | Votes: 10 | Rating: 6.5 ]

ARES vs RACES - ARES vs RACES FAQ: Two Flavors of Amateur Radio Emergency Operation
[ Hits: 966 | Votes: 1 | Rating: 1 ]

Michigan Amateur Radio Alliance - We publish a quarterly newsletter, hold Field Day,Public service events and still provide Morse Code classes on our repeater W8USA 145.230
[ Hits: 1177 | Votes: 4 | Rating: 3.75 ]

Twin City FM Club - Largest general-purpose ham radio club in Twin Cities. Three repeaters, fully equipped two position HF club station, contesting, field day, and more.
[ Hits: 2478 | Votes: 6 | Rating: 7.17 ]

Fieldcomm association - The FieldComm Association is a small group of individuals in the central Virginia area interested in communications
[ Hits: 839 | Votes: 7 | Rating: 10 ]

MassLive.com: Police Scanners - Listen to the Holyoke and Springfield police and firefighters, live and uncensored. This is the real thing, so anything could
[ Hits: 3636 | Votes: 5 | Rating: 3.2 ]

EZMaster by HamRadioSolutions - EZMASTER the all mode all in one interface. USB/Parallel/Serial Device. Include 75 sec Digital Voice Keyer, K1EL Winkey CW Keyer, SO2R switching, two radio interface, two RTTY audio insulated ports, two flexible Antenna Switch control. Ideal for Contesting, SO1R, SO2R, field day and daily activity. Compatibile with all software on the market : CT, CTWIN, TR, NA, WriteLog, N1MM, WinTest, MMTTY, MIXW and more .
[ Hits: 2085 | Votes: 4 | Rating: 4.25 ]

Delta Technology - DELTA Technology is specialized in the lightning protection field, surge arresters, lightning counter.
[ Hits: 1262 | Votes: 12 | Rating: 9.25 ]

4NEC2 antenna modeler ^pop - 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. Can be interfaced to HFwin32 propagation prediction software.
[ Hits: 30104 | Votes: 131 | Rating: 7.32 ]

PortaLog - "Optimized for mobile, portable, and field operations; synchronizes with popular desktop logging programs. Anywhere, anytime - always have your logbook handy. For Palm OS"
[ Hits: 1950 | Votes: 2 | Rating: 9 ]

59+ CW - Freeware Win32 application can be used for sending CW signal to the transceiver over a COM port or simply listening to Morse code on the speaker. The application is very easy to configure and will allow you to you to add new Morse characters set speed, tone, dash, dot, PTT line delay and other parameters. It is also possible to set shortcuts for call, QTH, name, RST and ANY other QSO field.
[ Hits: 25118 | Votes: 35 | Rating: 5.79 ]

FT1000MP-SuperControl - FT1000MP-SuperControl is a complete CAT control and "better than nothing" logging program, based on the legendary FT847-SuperControl program. The program has been developed especially for the FT-1000MP transceiver series including Mark-V and Field.
[ Hits: 3832 | Votes: 29 | Rating: 6.8 ]

Ballistic simulator Orbit - Ballistic simulator "Orbit" allows the physical principles of the motion in the gravitational field of the Earth to be demonstrated and learned. You can calculate with this program the ballistic trajectories of the thrown bodies and orbits of spacecrafts and visualize the astroballistic situation on the flat map of the world and on the rotating globe in the real time
[ Hits: 1879 | Votes: 3 | Rating: 7.33 ]