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These web receiver based in Kiew Ukraine show PSK31 activity on 20m band 14.070-14.074 MHz remotely by using a web browser. Requires java by the MixW team

DXSpotter is a commercial Win32 HAM radio application for working with DX Clusters by using TCP/IP protocol for communications. It is adapted to satisfy most DXer's needs. DXSpotter includes 2 programs in one: DXSpotter for connections via telnet protocol to more than 200 DX Clusters, and DXSpotter-Summit for connections to OH2AQ's WEB cluster DXSummit page with automatic page refresh Price USD 25

An attic indoor antenna successfully implemented by N9RET by using two runs of 2-conductor wire

PPCMorse and PPCMorse Pro are Morse code traning/sending utilities for PocketPC PDAs (such as the iPAQ, Jordana and Cassiopea).

CW transceiver kits, QRP, frequency counters, QRP wattmeters, Dummy loads and QRP Parts

A free to download and print, log sheet in A4 paper format for amateur radio stations

Making a 4:1 balun with a nescafe coffee jar lid and a toroid

A 5 elements yagi antenna for 10 meters band project, plane and picture of the EF105A by YU7EF

The Elecraft K3, a popular HF transceiver, is often benchmarked against new market entrants. This article critically compares the Kenwood TS-590S to the K3, focusing on key technical specifications and operational aspects relevant to serious amateur radio operators. The author proposes three distinct evaluation methods: a circuit diagram comparison, an independent review analysis (referencing Peter Hart, G3SJX, in RadCom), and a real-world "ear test" by experienced contest operators on 40 and 80 meters. The analysis delves into specific receiver components, including the first mixer design, RF and IF amplifier performance, and the presence of an image noise filter. It highlights the K3's switched mixer and the potential for the TS-590S to utilize similar or improved designs, such as a classic filter with enhanced selectivity. The article also scrutinizes the second mixer stage, noting the K3's SA612 chip and its associated IP3 limitations, suggesting Kenwood might achieve benefits with a different mixer architecture. Further points of comparison include DSP capabilities, where the K3's high-performing DSP with KK7P's involvement is noted against the TS-590S's potential reliance on newer IC technology but possibly less refined software. The discussion extends to DDS and PLL implementations for phase noise and spurious emissions, and the utility of a second receiver for DX chasing and contesting, acknowledging its importance for some operators while being less critical for others. The article concludes by emphasizing personal preference in equipment selection.

WILLMAR MN KANDIYOHI CO. Police fire EMS highway dept.

A shortened multiband antenna, about 23m long, for 80m - 10m bands with a low SWR (<1.3) on 80m and 40m, and < 3 till 10m. Bandwith on 80m is 300kHz

This very large moxon antenna resonate on 80 40 and 10 meters, has been used for CQWW 2006 by a YU team project

The webs premier Ham Radio discussion forums

A 446 Mhz J-pole antenna

Manufacturer of popular TinyTrak APRS Tracker offer Packet radio tools, wxtrack interfaces, TinyTrack3, a GPS position encoder, PicCon controller for transmitter hunting, GST-1 and GST-2 GPS format converters, and PeekPack, a packet radio monitoring tool.

Create - Reliable antenna and antenna rotators from japan. Manufacturer of amateur radio products, HF VHF UHF antennas, antnena towers, antenna rotors, HF Log Periodic Antennas, VHF UHF wideband amateur radio antennas

A guide for users of Ubuntu amateur radio software General support of Amateur Radio using Ubuntu /Linux.

A freeware dos antenna design program, dedicated to yagi antenna design by K4VX

Tennamast design and manufacture a wide range of fabricated metal goods, Antenna masts, Wind-sock masts, and masts for holding such systems as CCTV, Loudspeakers, Lighting units

K4TR Manufacture and sell simple dipoles, half square 2 wire phased vertical arrays, end fed zepp antennas, G5RV antennas. 1:1 baluns

Comparison chart of most popular VHF UHF amateur radio transceivers

Java script antenna calculators for ground planes, half wave verticals, quad antenna, 5/8th wave vertical antenna, dipole and inverted vee antennas

Frequency Filer is database program designed for people who use a great many different radio frequencies. It is primarily intended for amateur radio operators, short-wave listening enthusiasts and scanner users. The program makes it easy to keep all of your important frequency information in one place, displayed in a logical format to facilitate easy retrieval. Frequency information can be displayed as a list and can be viewed on a world globe. Other features include easy data backup and custom field names. Included is database import utility that can be used as a general file conversion utility. The globe display can also be used as general geographic aid for countries, cities, states, rivers, and lakes. You may even find your home town. Windows Shareware

Freeware by AE4RV. MorseQuiz is a Morse Code Speed Trainer for DOS/WINDOWS that can help you improve your code copying ability.

Packet Modems, tnc, portable tnc manufacturer

Pc sound card interface for PSK31 MFSK Baudot for the yaesu FT-817

Full line of VHF/UHF handheld and and mobile transceivers and accessories

Amateur radio dealer, scanners and accesories Burnaby, BC, Canada

Yaesu Kenwood, drake MFJ JPS JRC AOR Daiwa Hygain Weltz Uniden Lowe Black Jaguar Trident dealer

About collinear array antennas

These are 200 Morse Code QSO`s which might typically be heard on the HF bands.

Pictures of GAP Titan DX vertical antenna assembled by IW5EDI

CB radios, VHF transceivers, scanners antennas and accessories

Notes on bazooka antennas by Katunk: a portable field antenna, sometimes called the double bazooka or a coaxial antenna.

Wound on a 3 foot length of PVC pipe, the long loopstick antenna was an experiment to try to improve AM radio reception without using a long wire or ground.

Lets you automatically record your favorite radio programs from Web Radio broadcasts, and then listen to them later on your PC, MP3 player or Pocket PC.

This is a group for discussing Yaesu's great VX-7R handheld amateur radio.

CWCom is a free morse code chat progam for Windows operating systems you can download free. Has been tested with windows 10. You can use CWCom to transmit and receive morse code and text messages over a LAN or even across the internet. CWCom can translate and decode morse code to text and encode text into morse code or flashing light, so you don't have to know morse code to use it.

An cheap homemade azimuth and elevation rotation system using an Arduino/AVR.

Welcome to the Ham Radio Shack of V31MD at Palmetto Place Guesthouse. The Shack is available for rent on a daily or weekly basis.

Hand held portable, 6 meters and satellite antennas

Douglas County Sheriff dispatch channel

A youtube video of a Short Delta Loop antenna, only 8,5 meters per side. This project use a loading coil of 56,7 uH for electrical matching.

10 to 20 meters band log-periodic antenna project with SWR Plots, boom lenght and element spacing.

WA6CDE write about a major problem, a design flaw on two Icom 706 caps that have corrosive liquid that can seriously damage this icom transceiver.

Lincomatic's Homebrew WiFi Antennae, Cantenna, Toothpick Monopole, Patch Antenna, BiQuad, collinear wifi antenna all in one page

The varieties of twinlead J-Poles and some performance standards, L. B. Cebik, W4RNL

The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe

One of the most important considerations when designing and building a Yagi antenna is the method used to attach the elements to a boom. This is true because the boom influences the electrical length of the elements. In this article JH Reisert explain with drawings techniques on mounting yagi antenna elements to a boom

Converting Computer Power Supplies (PSU) to stabilized 13.8 V DC 20 A