ameritron als 600

A 5 elements Vee log-yagi for 10m - 5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals

RF in shack with vertical and longwire antennas - Why a vertical antenna or longwire antenna might require a balun

Dipole Height  ^pop - How High should my Dipole be? Dipole Antennas and the effect of height above ground

Choke balun  ^pop - Essentially, a choke balun is designed to 'divorce' your antenna from the feed line. if your feed line is coaxial cable then you don't want it to be part of your antenna. you want to be able to deliver all your power to the radiator itself, i.e. 'the antenna'. a choke balun does this admirably

The K6STI Receiving Loop - This relatively unknown antenna does an amazing job pulling weak low band signals out of man-made noise backgrounds

Vertical plane antennas' beaming comparision - Animated quad and yagi comparison. You can see antennas' characteristics behavior in a vertical plane with changing of the height.

Optimizing Inductors - While intended mainly for antenna loading coils, this article also applies to other resonant systems, such as amplifier tank circuits.

802.11b Homebrew WiFi Antenna Shootout  ^pop - Guide to homebrew your wifi antenna, using a tin can, in this cases using a pringles can. This antennas are also known as cantenna and let you spread your wifi signal.

RTTY contesting.com - Rtty contesting using writelog for windows. RTTY records and rules, tutorials

F8BDX Jose - Le radioamateurisme,le qrp,l elecraft k2, antennas,qrp,schemas,manuals,nostalgia, meteo,dx clusters hf, and contests links in french

IK1IJJ Swap Page - Italian ham radio swap site for transceivers, test equipment and manuals

Tarheel Antennas - Our motorized antennas and stainless steel mounts are designed with the most avid HAM radio operator in mind, as well as commercial applications. They are made with the best materials and top of the line workmanship. Antenna mounts

NETCERTUS ampsequencer - Advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY.

International Crystal Manufacturing Company - International crystal manufacturing provides quartz crystals, oscillators, precision crystals, filters, tcxos / vctcxos, qcm crystals, and other frequency control products. read details about our crystals and frequency control products and services.

Expanded Spectrum Systems - Flash crystals, Feakin' beacon keyer, beacon attenuator

ABC Dx Fundamentals of the Art of DXing - Fundamentals of the Art of DXing, an interactive tutorial, contains animated graphics & audio by Don Boudreau, W5FKX

PA2P Map WW-locator - Google Maps utility map by PA2P, with WW-locator and lat/lon. A Google Maps mash-up, also using the code of F6FVY, but with extra options.

International Meteor Organization Links - Meteor societies, clubs, and projects, Observing Methods, Newsletters, mailing lists, and astrophysical periodicals

Let's talk Meteors - Improve your Grid Totals by W4VHF

Yaesu FT-2000 Mods and Manuals - Mods and manuals for the FT-2000

Memphis Amateur Electronics, Inc. - New and used ham radio equipment supplier. we carry hundreds of ham radio products including amateur radios from alinco, icom, kenwood, and yaesu, plus ham radio products from mfj, ldg, diamond antennas, hustler, ameritron, astron power supplies, and books .

Circuit Specialists - We specialize in pc-based data acquisition systems, test equipment, electronic components, disk on modules, choke and coils, diodes, capacitors and connectors, potentiometers, crystals, resistors, relays

Army Radio Sales  ^pop - Devoted to all sorts of military radios and their hardware, as well as other interesting military items, and military vehicles. Army Radio Sales website contains a wealth of free information on military radios and military vehicles, as well as on-line manuals, your very interesting articles, thousands of pictures, as well as a fully automated free classifieds advertising section to advertise your needs.

FreqTweak - FreqTweak is a tool for FFT-based realtime audio spectral manipulation and display for Linux. It provides several algorithms for processing audio data in the frequency domain and a highly interactive GUI to manipulate the associated filters for each. It also provides high-resolution spectral displays in the form of scrolling-raster spectrograms and energy vs frequency plots displaying both pre- and post-processed spectra.

FFT Explorer - A free (GPL) Linux (Xwindows GUI-based) utility that performs spectral analysis on real-time data from a sound card or other source, and can analyze the spectra of various sound file types. It can also accept data from many kinds of applications in plain-text form by way of the "named pipe" feature of Linux