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Prince Edward Island. The PEI DX Lodge offers a turnkey operation from a custom designed shack featuring state of the art transceivers/amplifiers, etc. and the ultimate in antennas on every band.

KJ4WLH homemade dipole for 50 Mhz

Amateur radio cartoons by Woody Epp W7EPP

An online J-Pole antenna calculator that need just to input the frequency and calculates in inch size of each element

HamRadioBug.com the new home for Electronic Equipment Service. Yaesu high-end series SSB/CW transceiver repair

The Sharpie Probe, homemade with simple tools and few resistors

Yaesu FT-2000 roofing filters

C & Ku band satellite equipment - LNBs & LNBFs - MPEG-2 dvb receivers - dishes & More.

Distributor of Sovtek, other current production vacuum tubes, and NOS tubes. Distributor of electronic parts for audio and musical instrument amplifiers. Manufacturer/ Distributor of Electro-harmonix effects.

DELTA Technology is specialized in the lightning protection field, surge arresters, lightning counter.

There are 2 possible TX extensions on the E version, either full TX (1.705 - 30 MHz) or just open up 5 MHz (cut the R968 jumper and make it into a K version). This mod has been tested on TS 590S and not on TS 590SG

SP7PKI video review of the Yaesu FT-450

Wide bandwidth Trapped Verticals and rotary dipoles, baluns, 40m/80m wire dipoles and accessories from Australia.

Maps and propagation indices

Memorandum on the Beverage Wave Antenna for Reception of Frequencies in the 550 - 1500 Kilocycle Band", FCC Report 9.2.1, by Benjamin Wolf and Adolph Andersen

NERDAlert 2000 is an ID timer, with extras

Presents _HamQTH_, a free online callbook and callsign server, which provides rapid XML access for various logging programs, enabling seamless integration for amateur radio operators. The service includes features such as recent activity logs, propagation predictions, and support for multiple languages, making it a versatile tool for DXers and contesters. It also offers detailed information on callsigns, including US states, counties, IOTA, WAZ, and ITU zones. Users can leverage _HamQTH_ for efficient log searching and to monitor current band conditions, aiding in planning DX operations and contest strategies. The platform's XML interface facilitates automated lookups, streamlining the process of identifying stations and gathering essential QTH data. Petr Hlozek, OK2CQR, developed this resource, reflecting practical experience in amateur radio data management.

The Online Callbook for Internet Explorer makes it easy to find QSL information from the most popular HAM-radio web sites, such as QRZ.COM, ARRL.ORG, RAC.CA, QRZ.RU, BUCK.COM and OCTAVIA.COM,

The page provides a project for an helical dipole for the 40 meters band, resonating on 7 MHz, created by PY1ZFK based on a design by DL8VO. It includes detailed instructions on building the antenna.

N4PY Software is your source for high quality, effective rig control software for your transceiver. N4PY offers rig control software for a wide variety of receivers from the Elecraft K3 to the Ten Tec RX 320 receiver and it is major equipment integrator supporting panadapters, winkeyer, Tmate2 or FlexControl

SecondHandRadio.com provides a platform for the amateur radio community to buy, sell, and swap used, surplus, and obsolete electronics and electrical equipment. The site facilitates transactions for a wide range of items, including ham radio transceivers, test equipment, shortwave receivers, antennas, and vintage radio components like tubes. Users can place classified advertisements with photos at no cost, catering to individuals, radio clubs, and commercial dealers seeking to liquidate or acquire gear. The platform emphasizes ease of use with a straightforward sign-up process and no associated fees or commissions for listing or selling items. It positions itself as a primary resource for used electronics within the USA, fostering a direct connection between sellers and buyers without intermediary charges. The service supports various categories beyond amateur radio, extending to military radios and antique equipment, thus serving a broad spectrum of radio enthusiasts and collectors.

Codec2 is an open source low bit rate speech codec designed for communications quality speech at around 2400 bit/s. Applications include low bandwidth HF/VHF digital radio.

Na3P Panadapter Software

SWR (standing wave ratio), is a measurement of how efficiently your antenna system will radiate the power available from your radio. In simple terms, your radio would like to radiate all of its power, but can only do so if the other components cooperate

From TenTec Inc a video that illustrate a PL-259 installation on a RG8X coax cable

The 1721 HF Roundtable Group meets nightly on 7.261 + - QRM. Just a big ham radio family. Informal QSO'S in a rountable fashion.

GPS information and thorough product reviews

Live streaming audio from Redding police, Redding fire, hospitals, ambulances, Fish and Game, Anderson police, search & rescue, CHP, and fire districts. Redding Californa.

Blackford and surrounding counties Police, Fire, EMS, and EMA.

5W portable solar charger project that uses both your ham and carpentry homebrewing skills.

A multi-band portable vertical antenna can be built with relatively ordinary components obtained from the local hardware store, including replaceable loading coils

Configurations of the vertical antenna arrays used at 6Y2A

Constructing the QE19 Antenna Launcher

Triple-band (2-2.5 GHz, 6.5-7 GHz, 12-13 GHz) central receive systems with automatic airborne tracking.

Examines Kiwa, a global entity specializing in **Testing, Inspection, and Certification (TIC)** services across diverse sectors. The resource details Kiwa's operational scope, which encompasses quality assurance, safety compliance, and sustainability solutions for industries such as Food, Feed and Agriculture, Digital and Cyber Solutions, Energy Transition, Industrial Services, and Medical Devices. It highlights the company's role in ensuring product, service, process, and system integrity through rigorous accreditation and notification processes, operating in over 35 countries worldwide. The content presents specific examples of Kiwa's engagement, such as food safety certification for HortaPronta in Portugal, explanations of the Digital Battery Passport requirements, and contributions to floating offshore wind energy development. It also outlines the company's approach to biological evaluation of medical devices according to **ISO 10993** and its commitment to ESG principles, as detailed in its online ESG magazine, Trace. The resource provides access to a certificate finder and a testing directory with over 3000 capabilities across 80 laboratories.

RadioComm can be used to program your Icom radio's memory, or to create nice radio-frequency spectra or to interface your radio to a huge database of frequencies.

Experiments with spiral dipole antennas. Includes two spiral antenna designs for 20 and 40 meters band by KN9B

The ZS6BKW multiband antenna, an optimized variant of the classic G5RV, features a 102-foot (31.1 m) horizontal span and a 39.1-foot ladder line matching section. This design, derived by G0GSF (formerly ZS6BKW) in the early 1980s using computer programs and _Smith charts_, aims for improved SWR across multiple HF bands compared to its predecessor. Construction details specify Wireman 554 ladder line and #14 AWG THHN copper wire for the radiators, with precise instructions for determining the velocity factor (VF) of the ladder line using an antenna analyzer or dip meter, ensuring accurate physical length for the matching section. The radiator length is electrically 1.35 wavelengths for the 20-meter band, requiring careful trimming during tuning. Field measurements with an _AIM-4170C_ analyzer by KI4PMI and NC4FB demonstrated good SWR curves and bandwidth on 6, 10, 12, 17, 20, and 40 meters. The antenna was deemed unusable on 15 and 30 meters due to very high SWR, but an LDG AT-100PRO autotuner successfully brought 6 and 80 meters into tune. Contacts were made on 80, 40, 20, and 17 meters, including a **17-meter** contact to Spain. EZNEC models for 80-6 meters are provided, along with an AutoEZ model by AC6LA, which predicted good SWR for 80-10 meters. W5DXP's modifications for an all-band HF ZS6BKW are also referenced.

This is a plan for a 10 elements yagi antenna for 50 mhz

Makers of universal digital rotor controllers including wireless controllers

"Dash! The Dog-Faced Ham" cartoons by k1nss

This modification will allow the use of separate receive and transmit antennas on the Kenwood TS-850S/AT.

A Variable Base-Loading-Coil for use under a HF Mobile Whip

This Arduino library allow you to control various functions of Yaesu FT-857 through the use of CAT functions. This may work even with FT-817 and FT-897.

Home made WiFi 11dBi, wide band antenna by T. Marshall

Detailed online and searchable maps, driving directions and city guides

How to build a slingshot antenna launcher. Slingshot antenna launchers are used to launch a line over a tree branch, so antennas can be suspended from high up trees

A workign example of a simple half-sized, end fed halfwave for 160 meter band by N0LX

Examines PSKGNR, a software front-end specifically engineered to augment the functionality of existing PSK31 applications such as PSK31SBW and PSK31EVM. The resource details how PSKGNR integrates capabilities like typeahead for faster text entry, macro support for automating common phrases or commands, and other operational enhancements that streamline the PSK31 digital mode experience. It outlines the program's role in improving user interaction and efficiency during PSK31 QSOs by providing a more robust interface over the base software. The content highlights the practical benefits for digital mode operators seeking to optimize their workflow and reduce repetitive tasks. It positions PSKGNR as a utility for refining the user interface and adding advanced features to established PSK31 software platforms.

About the clemens match for beam antenna, as an alternative to common gamma matching techniques