current

231 links

A Short Course On Baluns - ve7sar
An interesting article on basics about Baluns intoducing the skin effects on radio frequency currents ...

[ Hits: 347 | Votes: 1 | Rating: 10 ]
Unun vs Balun - Configurations and differences - Palomar-Engineers
If you ever asked if you need an Unun or a Balun this article is ...

[ Hits: 345 | Votes: 3 | Rating: 6.67 ]
VHF Baluns: Fact and Fancy - GM3SEK
Our ideas about HF baluns have changed dramatically in recent years The focus today is ...

[ Hits: 283 | Votes: 0 | Rating: 0 ]
Baluns and common mode chokes - Dorenberg
Voltage baluns versus Current baluns When to use them differences and typical usage in feeding ...

[ Hits: 402 | Votes: 1 | Rating: 10 ]

A Reversible Beverage at ZL3IX - ZL3IX
How do two wire reversible direction Beverages work an excellent document that explains fundamentals of ...

[ Hits: 524 | Votes: 0 | Rating: 0 ]

Lazy H Array Antenna for 40 meter - NA4L
Make them simple then Make them work The LAZY H antenna is a general type ...

[ Hits: 284 | Votes: 3 | Rating: 5.33 ]

S50CLX Live DX Cluster - Dan S50U
Get DX spots from S50CLX Live DX Cluster in real time on your device showing ...

[ Hits: 132 | Votes: 0 | Rating: 0 ]

BOTA Beaches on the Air - BOTA
Beaches On The Air is an award scheme for radio amateurs that encourages portable operation ...

[ Hits: 145 | Votes: 1 | Rating: 10 ]

VFC LP Lightning Protection Products - Dwayne Hogan
VFC has grown to become the national leader in the lightning protection industry Protecting facilities ...

[ Hits: 91 | Votes: 0 | Rating: 0 ]

Sierra Radio Systems - Sierra Radio
Sierra Radio Systems site controllers are used to monitor and control remote radio and equipment ...

[ Hits: 130 | Votes: 0 | Rating: 0 ]

A Visual Farnsworth On-Line CW Trainer - Seth Morabito
This trainer is a small personal project designed to play with learning morse code through ...

[ Hits: 287 | Votes: 2 | Rating: 10 ]

Making Sense of Solar Indices - VK3FS
Undesrtanding three band conditions indicators to undestand current and future propagation conditions solar flux Ap ...

[ Hits: 152 | Votes: 0 | Rating: 0 ]

Real-time ionogram - hamwaves ^updated
This page displays the current ionogram and tries to determine the nearest digisonde report to ...

[ Hits: 266 | Votes: 1 | Rating: 1 ]

Proppy HF Circuit Prediction: Space Weather - James Watson
Current space weather condition gauges with solar indices taken from the latest WWV report ...

[ Hits: 137 | Votes: 2 | Rating: 9.5 ]

Solar Cycle Progression - NOAA
A dynamic graph of current and past solar cycle sunspot number progression and F10 7 ...

[ Hits: 235 | Votes: 0 | Rating: 0 ]

Balun_cmr Calculate common-mode impedance - VK2WB
This EXCEL Program Worksheet calculates the common mode impedance of a 1 1 Guanella current ...

[ Hits: 405 | Votes: 1 | Rating: 10 ]

AirHamLog - Online Amateur Radio Logbook - JJ1SXC
AirHamLog is a modern logging software for amateur ham radio operators The software works inside ...

[ Hits: 549 | Votes: 1 | Rating: 10 ]

MorseTeacher MorseMachine On-Line - Ward Cunningham
Learn morse code with this online version of the popular morse machine This version is ...

[ Hits: 177 | Votes: 3 | Rating: 8.33 ]

HamGPS - EA4EOZ
Display your current Maidenhead locator with 10 digit precision It also computes bearing and distance ...

[ Hits: 383 | Votes: 1 | Rating: 7 ]

Cost-effective ferrite chokes and baluns - GM3SEK
In this article the author describes some new designs of ferrite loaded chokes for suppressing ...

[ Hits: 868 | Votes: 5 | Rating: 6 ]