gain

The extended double zepp - This wire antenna exhibits extraordinarily high gain in a bi directional radiation pattern.

BV6 50 Mhz Yagis - Two Yagis for six meters band, one 1 wavelength long with a gain of 9.5dBd, and the other a 2.1wl model with a gain of 11.8 dBd.

80m 4 element delta loop antenna - A four element delta loop antenna for the 80 meter band providing a forward gain of 6 dBi by F5VKM

The Gain of the Axial-Mode Helix Antenna - by Dr. D.T. Emerson, National Radio Astronomy Observatory (NRAO++). Antenna Compendium Volume 4, pp 64-68, 1995, published by the ARRL.

A Hanging Rectangular Loop Antenna - A rotatable hanging loop antenna that has been specifically designed for hanging in a tree. Horizontally polarized with a broad azimuth pattern and gain of nearly 3dB over a simple horizontal dipole!

Low Noise Antenna Connection - Reducing noise to your antenna can gain your aerial performance, learn how.

The Homebrew Slim Jim Antenna Gain - Slim Jim antenna gain

The gain of aerials: the myths explained - In the long history of beam aerials there has persistently existed the claim that certain types of aerials perform better than yagis.

1WD280 Homepage Priority listing - Web-page of Miki, 1WD280, with infos about WD Group, about WD Dx-Activity and about Miki

County Hunter Dot Com - Site dedicated to Amateur Radio Operators interested in working the 3076 US Counties for the USACA Award sponsored by CQ Magaine

Tonga DXpedition Award - To gain Tonga DXpedition Award it is necessary to have QSL confirmed contacts with two amateur radio expeditions from Tonga (A35), on two bands, with two diffrent modes. Available also to SWLs

Hy Gain  ^pop - HF UHF/VHFAntennas, dipoles, accessories and rotators

SuperPass Company Inc. - Antenna manufactuer, Panel antennas, sector panel antennas, high gain for ISM, MMDS, PCS, GSM, CDMA, TDMA, 400MHz, 900MHz,1.9GHz, 2.4GHz, 2.7GHz, 3.5GHz,5.8GHz. Broadband wireless applications for ISP,ASP.

Max-Gain Systems, Inc. - Fiberglass for the antenna builder, Antenna Mart quads, Bandmaster quads, transmitting components, vacuum capacitors and relays, tower accessories, gin poles, remote RF coax switches, rotating side mounts, quad spreaders, quad parts, bristol wrenches, doorknob capacitors, transmitting electron tubes, and much more!

RT Systems - Online shopping, Programming Software, Icom, Yeasu, Kenwood, Istron, HyGain, MFJ, cat cables interfaces and other radio control cables.

Troposcatter Meteorscatter Ionoscatter - Troposcatter, 50 MHz meteor scatter, ground gain for eme, radiation angle, by OZ1RH

Classic International - Experts in Wireless Communication, distributor of Ameritron, Bencher, Butternut, Hustler, Hy-Gain, MFJ, Microset, Mirage, PKW, Vectronics.

Mainland Radio Communications Priority listing - Yaesu Kenwood, drake MFJ JPS JRC AOR Daiwa Hygain Weltz Uniden Lowe Black Jaguar Trident dealer

Yagi Designer  ^pop - Program that produces antenna radiation patterns and graphs for SWR, forward gain, and F/B ratios

DXView  ^{updated  pop} - A free application that displays location information determined from a callsign, displays translations of common "QSO words and phrases" in the languages used in the callsign's DXCC entity, displays beam headings and SpotCollector DX Spots on a world map, displays country maps, and provides point-and-click control of antenna rotators from AlfaSpid, ARSWIN, Heath, Hygain, M2, Prosistel, SARTek, TIC, Trackbox, and Yaesu

BeaconSee - BeaconSee shows you, in real time, worldwide HF band openings on your PC. Analyses the audio signals from your radio, which is tuned to the NCDXF IARU HF beacon network and shows you the signal strength received from each of the 18 beacon transmitters as a plot of frequency spectrum against time.

Amplifier Simulation Program - ASP 4.0 - Design weak signal GaAs FET or bipolar PreAmps. Automatically designs for optimum gain, NF, VSWR or all.

WL7AML Intermod program - This program will run all possible combinations of every transmitter against every receiver in its list

Frees - Calculates the freespace range of a radio-link. It is useful for radio amateurs, radio engineers and for SETI signal estimations. Calulation of parabolic dish antenna-gain is included.

Gain receiver performance - Tips for those who wish to gain another level of performance from their receiver