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144 Mhz portable 4 elements quand antenna by N1LO

Stream your radio audio output with free version on unreal media server. Support live audio and video broadcasting via internet

A multiband 20/40/75/160 trap dipole antenna plan by KG0WX

Ham radio software downloads including sstv, logging and morse code

FT-817 product review at eham.net

NHRC Repeater Controllers is your provider of low-cost, high-value repeater controllers.

A portable VHF home-made Yagi-Uda antenna, that is extremely easy to build and very cheap. Moreover this antenna, while dismounted is just 1 meter long, and the total weight is just 100 grams.

A home made QRSS beacon project for the 10 MHz by VK2ZAY

The Bundesnetzagentur's online tool provides a direct interface for searching **German amateur radio callsigns**, enabling users to retrieve specific details associated with licensed operators. The system utilizes a web-based form where users input a callsign to query the official German amateur radio database. This resource is built on Microsoft Visual Studio .NET 7.1 with Visual Basic .NET 7.1, indicating a mature and stable backend for data retrieval. This callsign lookup service facilitates rapid verification of German stations, which is particularly useful for **DXers** confirming contacts or for contesters needing to cross-reference logs. Unlike broader international callbooks, its focused scope on German licensees ensures high accuracy and direct access to official data. The tool's simplicity and direct functionality make it an efficient utility for any amateur radio operator interacting with German stations.

A mobile antenna for the 75 meters band by K0RWU

QSL extra offers QSL informations for every ardent dxer, with over 30.000 entries.

Radi Australia web site

Collection of world wide radio amateur maps by SP8DA

A multi band version of the EH antenna by Emilio S. Campus IS0IEK

Two 50 Mhz amplifiers and antenna switch

The following are the opinions expressed by various amateurs

K6ZB Bruce presentation of technologies to allow ham radio operate via internet

An amateur observatory using a 4 GHz TVRO antenna.

A rotateable dipole specifically for the 20m based on W3FF Buddipole design by ZR6KMD

1.2-30V 1.5A variable regulated power supply

The simple dipole is perhaps the best antenna for consistent performance. Basic page on dipoles by G3PTO

This article describes the design of an antenna for local contacts on 7MHz, including a simple and efficient matching system that presents a 50 ohm load to the transceiver.

Arkansas DX Association links to logs

Vintage and reproduction electronic parts specialist - Antique radio dials and knobs, 1940-1970 era phonograph cartridges, needles, idler wheels.

How to setup a Remote control ham radio station with Yaesu FT-8x7 radios via LAN or via internet.

70cm-Longyagis in 28Ohm-DK7ZB-Design

The largest hamfest in New Englang US

Open source libraries and utilities to support using digital signatures for Amateur radio QSL system information like eqsl and lotw. Available for windows macos e linux.

How to use packet radio using the WindowsCE operating system

Circuit of the Kenwood IF-10D interface for the TS-50 transceiver.

The following are the opinions expressed by various amateurs

The 2 meters version of the HB9RU antenna in german

JG2KJU collect brochures and catalog of vintage radios, including kenwood yaesu icom standard national nec star ten-tec and many more

K6AER Yaesu FT-2000 review on eham

by Don Graham, VK6HK

Freeware antenna analyzer for linux

A shortened 7 MHz Dipole antenna as described by Ken GM4JMU in Sprat 74.

This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line types built in to the calculator. It also gives an estimate of the mismatched loss if the mismatch is specified.

Presents the detailed construction of the _FLA25HV_ antenna, a specialized array optimized for Earth-Moon-Earth (EME) communications on the 2-meter band. This resource provides schematics and practical insights into building a high-gain antenna system capable of reflecting signals off the lunar surface, a challenging but rewarding aspect of amateur radio. It covers the mechanical and electrical considerations essential for achieving the precise pointing and signal strength required for successful moonbounce contacts, often yielding **20 dB** or more gain. Amateur radio operators pursuing EME operations require robust antenna systems and precise tracking capabilities. The FLA25HV design addresses these needs by focusing on element spacing, impedance matching, and structural integrity to withstand environmental factors while maintaining critical alignment for lunar reflections. Such systems are crucial for making contacts over distances exceeding **768,000 km**. This personal page serves as a practical guide for hams interested in constructing their own EME arrays, offering a glimpse into the technical dedication involved in pushing the boundaries of VHF/UHF propagation.

Feeding a G5RV Overview by VK1OD

VHF/UHF DX site showing latest propagation, software, radio dealers, awards, maps etc.

Listen to HS0ZER/DL1ZAV radio station from Bangkok, Thailand

Information on how to access the IRC #CQDX chat room for DXers. Also contains a live feed of DX spots directly from DX Summit.

General electronic topics on interfacing to PC soundcards by epanorama.net

A small portable antenna tuner for HF and VHF bands by ON6MU

Based on DL6UW Yagi antenna's design-formula The forward gain is 13.6 dBi (about 11.5 dBd) and it's pretty small, about 1,5 m in length

Design that can be mounted on a mast underneath an existing beam.

DF9CY Active Magnetic Antenna project

Local and DX contacts from tight spaces, it works from 40 to 17 meters