websdr app

Vertical Radial Ground Systems - Tom, K1JJ on radial ground system applied to 160 m vertical array

Rotatable 40M Dipole - The Linear-Loaded "Crappie" 40M Rotatable Dipole A Short 40 Antenna You Can Build for $50 or Less by VA7ST VE7ASK

Coaxial antennas - G3TXQ study on coaxial cable demonstrate that it can reduce an element's length by something approaching the Velocity Factor of the cable

2 meter 1/2-wave J-Pole - Great first time J-pole project. Covers most of the basics. This small and thin design also makes it good for several stealth applications.

Sloper antennas  ^updated - HB9TQF sloper antenna notes, setting up a multiband trapped half sloper antenna for 80 and 40 meters in italian PDF File

Video of a W3DZZ Trapped Antenna - Video construction of a multiband HF trapped dipole antenna based on a variation of the classic W3DZZ design

W3DZZ A low cost trap dipole - HM0ONX edplore the W3DZZ and says that is a trapped multiband antenna that shouldn't be discontinued

Great Lakes Lighthouse Award - Contact Award certificate is for any Licensed Amateur or Short Wave Listener. We award this certificate to applicants who can verify contacts with a minimum of 7 Great Lakes Lighthouses/Lightships. The Activators Award is for any Licensed Amateur who activates 5 Great Lakes lighthouses/lightships.

RVARC Rappahannock Valley Amateur Radio Club - The RVARC is a Fredericksburg, VA area 56 year affiliated club with the American Radio Relay League, ARRL.

San Joaquin County Sheriff and Stockton Police - Recorded scanner radio traffic from police and fire department communications. Stockton Police scanner recordings of pursuits, fights, shootings, officer involved shootings, in progress high intensity calls.

AOFU Fiberglass Products - Manufacture Fibreglass Rods poles Tapered Fibreglass Rods apply flag poles, Tent poles, Golf flag poles, Sail Battens, Skifield barriers, Kite struts, Sports field markers, Fishing rods.

Tecom - Tecom industries product line encompasses a wide range of highly sensitive active and passive antennas for use in airborne and ground applications, providing complete coverage of the 20 MHz to 40 GHz frequency range.

Nearson Antennas - Founded in 1990, Nearson, Inc. has been providing our customers with exceptional value with the products and services we offer. VHF, UHF mobile radios, Cellular, PCS equipments as well as ISM band wireless data and WLAN applications.

I0GEI Yaesu FT-2000 review - FT-2000 /D The Transceiver Yaesu HF 50 Mhz, 100 or 200W output

The N6QAB TH D7A GPS compatibility page - This page only applies to TH D7A's that have a S/N below 010xxxxx and have not had their firmware upgraded by a Kenwood Service Center.

Mid America Tower Service - Specialized in antenna tower erection, inspections, maintenance, excavating, planning, repair and site mapping.

House of Batteries - House of Batteries is a master distributor and custom battery pack assembler for every major battery manufacturer in every battery chemistry for every electronic application

Universal Score Uploader - A free Windows application which allows you to post ham radio contest scores to getscores.org portal

Signals Analyzer - Signals Analyzer – it is the program, which is designed for the very qualitative analysis of different signals. The main area of SA application is the analysis of unknown or unclear, strange signals.

Super Check Partial - Super check partial is a feature that K1EA first introduced in his CT logging software. It enables the use of a database to extend the list of calls that appear in the check partial call window. Used correctly, it can help you more quickly pull a call out of the QRM

Ham Fax - HamFax is an application for sending and receiving facsimiles in amateur radio and for receiving public facsimile broadcasts like weather maps. Supported interfaces are sound cards and the SCS-PTCII from Special Communication Systems.

ADIF Master - ADIF Master is a highly user configurable Windows application for working with HAM radio logbooks. ADIF Master allows to convert any existing Cabrillo, TR, CT logs or a part of it into an ADIF file. Also you can use ADIF Master to open and modify existing ADIF logs using customizable filters, add, remove and modify ADIF tags and entries

Signals Analyzer - Signals Analyzer – it is the program, which is designed for the very qualitative analysis of different signals. The one of main fields of SA application is the analysis of unknown or unclear, strange signals. This programm will be very usefull to everyone from professional analysts to amateurs.

Resonant Frequency Calculator - This web based application will compute circuit values required for an L-C circuit to resonate at given frequency. Also it will compute the resonant frequency if given values for L and C.

Selecting Capacitors - Selecting capacitors in RF power applications at HF by I0JX