yagi antennas

QM5 Yagi for 2 meters band - The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements

Beverage Antenna Construction - Types of beverage wires, choose best supports and insulators, multiple antennas at one feedpoint, all well documented with photos and exaustive explanation.

Beverages: How Short Can They Be - When we think of Beverage antennas, we automatically think of several acres of land and lots of wire!

Beverage switching box - Sharing beverage antennas with this switch boxes is possible.

Comparison of Beverage antenna - A ranking of receiving antennas based on noise being evenly distributed in all directions. These rankings are most accurate in the frequency range of AM broadcast, 160 or 80 meter bands

Antennas for HF mobile operation  ^{updated  pop} - The following description should give you guidance on how to build a mobile antenna for HF bands yourself, using a very cheap CB-mobile whip antenna base. Antennas for mobile operation 7Mhz ,10Mhz, 14Mhz, 18Mhz, 21Mhz, 24Mhz,28-430Mhz

Active receiving antennas - An active antenna is sometimes used for receiving purposes in instances where a normal antenna would be impossible to accommodate in a physical sense.

The dipole antenna - One of the easiest and cheapest yet still effective antennas to build for shortwave listening

Antennas and Grounds for apartments  ^pop - Suggestions on finding RF ground when you live in an apartment and you want to setup an antenna

Loop-Uda-Yagi for 2.4 Ghz  ^updated - Information on wifi antenna

GMRS J-Pole Antenna - Build a j-pole antenna for the GMRS/FRS radios. These radios are the type you can buy at sporting goods stores such as REI, Cabelas, etc. There are several radio manufactureres who make GMRS/FRS radios with removable antennas. This antenna can increase the range of these radios by miles!

Laselki.net - Arab Amateur Radio Forum - Arab Amateur Radio orum. Transceivers , Antennas, Educational, Software, Digital Communication and more.

TX RX Systems Inc - TX RX Systems Inc. manufactures signal boosters, rf antennas, transmitter combiners, cell enhancers, land mobile radios, duplexers, receiver multicouplers, bidirectional amplifiers, bda, rf amplifiers, rf filters, rf cavity filters, rf combiners, rf components, in building rf coverage, repeaters, repeater amplifiers, rf management equipment, rf systems, and rf solutions. TX RX Delivers Reliable Solutions.

Digital Smart Antennas DiSA - Digital Smart antenna (DiSA) Automatically Adjusts over a wide band of frequencies.

Radiowavz Antennas - Double Bazooka, G5RV, W5GI, NVIS, Fan Dipole antenna systems. Custom antnna Builder.

Mobat Communications - HF-SSB radio products Accessories, Amplifiers and Antennas tuners. Established in 1995 as a joint venture between Motorola's Land Mobile Product Sector and Bartal Electronic Enclosures Ltd.

Dawicom - Manufacture of microwave directional, omni directional, sector and multisector antennas with horizontal polarization for ISM band 2,4 GHz

Taoglas antennas - Antennas for asset tracking, navigation and remote monitoring GPS, GSM, GPS/GSM, Satellite Radio, WLAN

Batteries and gadgets - Your source for weather radios, communication headsets, 14 channel radios, M&M groovy radios, smithsonian crystal radio and weather station kits, line restrictors, antennas,ham radio accessories, and battery products.

The HAM Contact - Mobile antennas, alternative power sources, ham radio accessories

eBay Store - ON Antennas J Pole - Buy ham amateur radio, antenna, j pole items from ON ANTENNAS J POLE eBay Store. We sell ham amateur radio, stealth wire, 2 meter, vertical items on eBay.

Getting Started in SW Listening - Excellent and exaustive guide to shortwave listening offered by monitoringtimes, includes operating guides, technical suggestions, buying guieds, antennas implementations and more, all what is needed by shortwave listening beginners.

Nec2Go - Powerful antenna modeling tool using NEC 2 computing engine. Nec2 specifically provide users, either those experienced with the Nec2 processes, or for those who are neophytes but want to model their own antennas. Nec2Go uses a simplified process for defining the antenna structure and then providing view of the structure, plots (2D and 3D) and other significant data that is pertinent to the design. This simplified process uses an edit file with equations for all definitions.

Mizuho products - Mizuho Tsushin Co. was a small Japanese manufacturer of QRP radios and kits, shortwave receiver accessories, and AM broadcast band receiver kits and antennas

Antenna Noise and Signal Cancelling at LF - By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.