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714 links - and 10 categories

20 meter short loaded vertical antennas - N4SPP
Loading is a way to lower the resonant frequency of an antenna radiator This technique ...

[ Hits: 232 | Votes: 1 | Rating: 9 ]

How to Blow Up Your Balun - N6BV
In this article author examine stresses placed on common mode chokes aka baluns as hams ...

[ Hits: 390 | Votes: 0 | Rating: 0 ]

OK1RD Beverage Antennas - OK1RD
A Beverage antenna system consisting of 4 time reversible Beverage antennas in length of 320m ...

[ Hits: 124 | Votes: 1 | Rating: 5 ]
Beverage switch-box - DB9EX
A home made Beverage system for portable use The goal was to switch between 4 ...

[ Hits: 115 | Votes: 1 | Rating: 8 ]
Reversible RG6 Beverage Antenna - VE3VN
A project about reversible unidirectional Beverage antennas plus a remote switching system conveniently controlled by ...

[ Hits: 186 | Votes: 3 | Rating: 7 ]

High Performance common-mode chokes - G3TXQ
May 2015 Radcom Article on common mode chokes that can be used for control cables ...

[ Hits: 690 | Votes: 1 | Rating: 10 ]

The KC5LDO Vertical Antenna - KC5LDO
Antenna for Field Day or Everyday aA simple yet rugged six band quarter wave vertical ...

[ Hits: 185 | Votes: 1 | Rating: 9 ]

Adjusting HF Yagi Gamma Matches - VE3VN
There are many feed systems used in yagis over the years Gamma matches are not ...

[ Hits: 132 | Votes: 1 | Rating: 10 ]

IAT Interactive Antenna Table - UR5EAZ
IAT is an excel sheet table evaluate parameters of VHF UHF antennas edited by Vladimir ...

[ Hits: 106 | Votes: 4 | Rating: 9.5 ]

Automatic Position Reporting System for HF - sarcnet
A basic introductionto APRS on HF Bands for radioamateurs and how to setup an APRS ...

[ Hits: 151 | Votes: 0 | Rating: 0 ]

Homebrew GPS tracker - F1ATB
It is easy today to build a GPS tracking system for mobile applications that can ...

[ Hits: 241 | Votes: 1 | Rating: 7 ]

APRS and Packet Radio made easy - DL1GKK
The Raspberry PI 3 4 has proven itself as an amateur radio computer Both at ...

[ Hits: 144 | Votes: 0 | Rating: 0 ]

HF communication prediction tools - BOM
Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to ...

[ Hits: 169 | Votes: 0 | Rating: 0 ]

AN-SOF - Professional Antenna Simulation - ANS.SOF
AN SOF is a professional comprehensive software tool for the modeling and simulation of antenna ...

[ Hits: 243 | Votes: 2 | Rating: 10 ]

DMR Contact Manager - N0GSG
DMR Contact Manager is a Free software package designed to make it easy to maintain ...

[ Hits: 358 | Votes: 2 | Rating: 9 ]

Free Virtual Serial Port - freevirtualserialports
Windows user mode application which allows you to create software virtual serial ports and emulate ...

[ Hits: 1078 | Votes: 8 | Rating: 7.62 ]

Ham Radio and Solar Power Systems - K1KP
Can Home Solar Power and Ham Radio Coexist It is possible with minimal interference from ...

[ Hits: 347 | Votes: 1 | Rating: 9 ]

How to Ground an Antenna: aerial earthing - Electronic Notes
The antenna ground or earth system can be key to its operation whilst also being ...

[ Hits: 233 | Votes: 1 | Rating: 4 ]
Practical Amateur Radio Grounding - radio2way
The single point ground in the most important aspect of a good grounding system The ...

[ Hits: 295 | Votes: 0 | Rating: 0 ]

Measuring with a MiniVNA - N4SPP
Measuring technicques using a MiniVNA author describes how to determine and unknown inductance or how ...

[ Hits: 186 | Votes: 1 | Rating: 1 ]