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A 2 meter (146 Mhz) J-Pole antenna that is inexpensive, and easy to build.

Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe. The document provides a brief guide on building a compact dipole antenna appropriate for the 40, 80, and 160-meter amateur radio bands. It explains the materials, building processes, and tuning methods required to provide best performance while preserving space. The paper also discusses theoretical elements of dipole antennas, such as impedance matching and feedline selection.

Free Windows Amateur Radio logging program written by Bob Furzer, K4CY the author of Zakanaka. Logger32 runs under all Windows versions. Logger32 has been developed to be a highly user configurable general purpose Amateur Radio logbook with computer control support for many radios and antenna rotators.

Here is how to build a high gain antenna for 2.4 gHz wireless networks. Several hams are experimenting with these devices in an effort to build a network. It is sometimes referred to as Hinternet or HSMM.

A reduced-size 80-meter antenna designed for small lots, portable use, and a fine companion for QRP

2 Meter Antenna for Bicycle Mobile Operation

calculates the dimensions and spacings of the elements needed to build a log periodic antenna, given tao, sigma and the lower and upper cutoff frequencies.

A comparison of different multi-band dipole techniques

Cannot find the inductors you need for an antenna, a tuner or amplifier ? Build your own it is easy!

Logging software designed solely for Windows 95/98/ME/NT4/2000/XP/Vista/W7/W8/W10. The Author G0CUZ provides this software free to use by all Radio Amateurs and SWL's in true Ham Spirit. While Winlog32 serves as versatile logging software, it particularly emphasizes DX'ing on HF and VHF. It extensively tracks awards programs like DXCC, IOTA, WAZ, offering features expected from quality logging and DXing software. The software is freely downloadable, retaining full functionality without any restrictions. Users can distribute it individually, ensuring the original files remain unaltered, without any charges. Bulk distribution requires specific permission from the Author.

Suggestions on finding RF ground when you live in an apartment and you want to setup an antenna

Which balun to use? The hybrid balun promises advantages over both voltage and current baluns by ZS1AN

A short but efficient dipole for 40 meters band

Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format

Setting up the Arduino DUE to run as an SDR software defined radio

Here is a 70cm (440 Mhz) J-Pole antenna that is inexpensive, and easy to build. Author use 1/2 inch copper pipe, and the associated fittings necessary. The dimensions aren't typical however, this is what it took to get its SWR low.

SWISSLOG is a Freeware powerfull Logprogram for the sophisticated Ham. Due to its flexibility it covers all requirements. Run under Windows and support external devices, dx cluster, reporting and many features.

The new LogConv currently supports ADIF, Cabrillo, CT9, CT10, EQF and TR Log files as input and can output both ADIF and Cabrillo formatted files by ka5wss

Usage and benefits of transmatch. A pdf document from a QST article made available for novices and beginners by ARRL

AC Log by N3FJP is an easy to use Windows based general logging program by N3FJP. The program tracks your Worked All States, Worked All Counties, and Worked All Countries progress. Included is a database of counties and countries. Trial version available.

How to build a beverage antenna. How to deploy a BOG antenna for your next SWL DX-ing activity. Give it a try and follow the orientation tips for this bi-directional antenna.

CQLog is a powerful logging program for Windows. It provides a comprehensive control centre for everyday on-the-air activities, including: full-featured logging of QSOs; statistics for many awards (for LoTW and eQSL capability); support for QRZ, RAC, GOLIST databases. You can save up to 3 pictures for each SSTV-QSO. Two-way data exchange with MixW2, and DigiPan. Integrates with DX Atlas. Real-time upload of QSOs to eQSL.cc. The program also offers a "contest-mode"; supports CAT systems for YAESU, ICOM, KENWOOD, Ten-Tec. Prints QSL cards, and QSL labels, addresses envelopes.

jLog is a modern Freeware Ham Log program that can run on all major platforms, e.g. Mac OS X, Mac OS, Linux/Unix, Windows, etc. It offers a nice, clean interface and allows efficient entry of QSOs. Import or Export of data using the standardized ADIF 2 format is possible to easily exchange data with any other decent Log program. Built-in CW Keyer, CAT control for many popular, rigs, DX Cluster tracking, call lookups

How antenna works by ARRL

N1MM Logger+ is one of the most popular contest logging programs for Windows and it is the evolution of the N1MM classic. N1MM Logger plus is fully free to download and to use software featuring automatic CW generation, rotator and radio control, suport for So2R, cluster support, winkeyer interface, import export cabrillo and adif formats and many more features. Download N1MM from the official web site with latest callsign files and updated.

An inexpensive external GPS antenna, for 1.5 GHz band for GPS receiver, If you operate APRS or just need an external antenna for your GPS receiver, here's one that is easy to build yet offers surprisingly good performance in a compact size. Best of all, it uses commonly available components and materials.

XMLog is an amateur radio logbook system for Windows and Windows NT.

HF Antenna analyzer with Arduino Nano, open software has also become a commercial product

What is a dipole antenna and why are they so popular ? Arrl PDF file

Offer PC based virtual instrument for electronics enthusiasts, students and professionals, including full-fledged sound card real time Oscilloscope, Spectrum Analyzer and Signal Generator.

Shareware logging tool for Windows. Very efficient, fast and easy to use. Support and development is discontinued.

HF amplifiers manufacturer maker of HF-2000 RF power amplifier

A detailed drawing of a VHF UHF Log periodic antenna by VA2PHI

More than 80.000 datas of antique radios, pictures and plans. European and US-Radios.

Plans, photos, electrical and mechanical design for this HF Log periodic antenna.

A few hours of fun with PVC and wire and you have got yourself a respectable road radiator. The antenna consists of little more than some PVC pipe topped by a RadioShack replacement whip antenna and a couple of coils made from a small roll of #14 house wire.

AALog is a comprehensive logger program designed for amateur radio station operators. QRZ,Buckmaster,Flying Horse lookup, CW/RTTY/PSK31 support, Digital voice processor. DXCC,WAZ,P75P,WAS,JCC,WAJA,WAIP,IOTA,Russia tracking. Many other useful features. eQSL.cc compatible. It look like your paper log and use all power your PC

Modified version of the Telerana antenna which was orginially featured in the July 1979 issue of QST. The array is suspended within a framework made of fiberglass poles emanating from a central hub with the ends tied together with light weight rope around the perimeter. 10-15-20-30-40 meter band coverage

Log4OM is a Free Windows complete station management that includes general logbook program, dx cluster, CAT radio interface and interface to several ham radio services like LoTW QRZ HRDlog and more.

This free software is useful for visualizing terrain and performing Longley-Rice path loss and coverage prediction using the Irregular Terrain Model. A Windows port of the Linux-based SPLAT by John Magliacane.

Free german Open Source HAM Logging Program unter the terms of the GNU General Public License. CLLOG runs under MS-DOS (Windows DOS-Window under 3.x,9x,NT,ME,2000) and LINUX. All Functions for Logbook.

Easylog by microware software

ST0R Log Online Souther Sudan 2011

SWR / Wattmeter with Arduino Uno Shield. It can measure from 2 to 200 watt and SWR for HF Ham radio.

This PDF document provided by AT technologies explains how to build the K9AY loop receiving antenna.

Ham Log book is written in MS Access. A good logging program that is very easy to use by Kevin Rea K6REA

BBLogger, is a Free windows Logging software to fully manage you Amateur or Short Wave Listener Radio Station. Offer several fatures including Rig control, Cluster interface, mapping features, Awards and DXCC management, LoTW, Label printing, QRZ lookup and more by IK2VIW and IK2UVR

CB radio's catalog with photos and features, in czech.

Online calculator for Logarithmic Periodic Dipole Antenna LPDA

Build your own cobweb antenna followning M0MRR instructions and notes