the systems

157 links

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 ]

ARRL - About Feed Lines - ARRL
The feed line also called the transmission line is the RF power conduit between your ...

[ Hits: 88 | Votes: 2 | Rating: 6.5 ]

Mastering Magnetic Loop Antenna Control - TF3LJ
Unveil the secrets of efficient Magnetic Loop Antenna control systems eliminating the hassle of frequent ...

[ Hits: 80 | Votes: 0 | Rating: 0 ]

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 ]

Evolution of Car Radios: From Marconi to Motorola - Success Consulting
his historical account traces the development of car radios from Marconi s mobile wireless telegraph ...

[ Hits: 66 | Votes: 1 | Rating: 1 ]

Taking a look at the 900 MHz band - KB9MWR
Use of the band as Amateur Radio is secondary in this band to federal radiolocation ...

[ Hits: 50 | Votes: 0 | Rating: 0 ]

M17 digital radio protocol for data and voice - M17
M17 is a community of open source developers and radio enthusiasts We are building understandable ...

[ Hits: 56 | Votes: 17 | Rating: 9.47 ]

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 ]

Iambic Master - NA0N
Free Windows program intended to be used as a training aid for sending CW using ...

[ Hits: 150 | Votes: 0 | Rating: 0 ]

AppCAD - AppCAD
Free windows application for RF Microwave and Wireless applications AppCAD is useful for the design ...

[ Hits: 135 | Votes: 1 | Rating: 8 ]

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 ]

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 ]

Understanding Impacts of 75-ohm Devices in 50-ohm Systems - KA7OEI
This article explores the implications of using 75 ohm devices common in TV setups within ...

[ Hits: 151 | Votes: 2 | Rating: 9.5 ]

Stop RFI from Solar PV Systems - WB8ERJ
Stop EMI RFI Interference in Off Grid Solar PV Systems in this article the author ...

[ Hits: 82 | Votes: 0 | Rating: 0 ]
RF-Quiet Solar PV for Ham Radio - KA7OEI
This article discusses the potential for solar power systems to coexist harmoniously with amateur radio ...

[ Hits: 78 | Votes: 1 | Rating: 1 ]
Prevention and Suppression of RF Interference to Audio Systems - Jim Brown
In this study the author builds upon Muncy s research demonstrating that radio frequency current ...

[ Hits: 48 | Votes: 0 | Rating: 0 ]