impedance

127 links - and 2 categories

Enhancing Performance with a Cage Dipole for Six Meter Band - KB9RLW
Explore the design and testing of a cage dipole antenna for 6 meters Through innovative ...

[ Hits: 76 | Votes: 0 | Rating: 0 ]

Extended Double Zepp NVIS Antenna Calculator - WestMountainRadio
Extended Double Zepp measurements for all ham bands and online calculator The antenna is constructed ...

[ Hits: 125 | Votes: 3 | Rating: 7 ]

9:1 Unun Impedance Transformer - VK1AD
A 9 1 unbalanced to unbalanced unun impedance transformer based on a published design by ...

[ Hits: 197 | Votes: 1 | Rating: 4 ]
QRP Balun: A DIY Project - AA5TB
DIY project of a QRP Balun Using a high permeability ferrite rod and an old ...

[ Hits: 59 | Votes: 0 | Rating: 0 ]
Baluns and Ferrites Basics - VE2AZX
Unlock the secrets of RF signal optimization in a presentation covering Balun essentials diverse types ...

[ Hits: 198 | Votes: 3 | Rating: 9.67 ]

Delta Loop vs End Fed Half Wave on 20m - PH0NO
Intrigued by a German OM positive experience with a 20m delta loop the author replicated ...

[ Hits: 123 | Votes: 0 | Rating: 0 ]

End-Fed Half-Wave Antenna for 20m 40m 80m - VA3KOT
How to Design and Build a Field Expedient End Fed Half Wave Antenna for 20m ...

[ Hits: 142 | Votes: 1 | Rating: 4 ]
40m QRO End Fed Half Wave Antenna Coupler - AA5TB
A medium power End Fed Half Wave Antenna coupler specifically tuned to the QRP frequency ...

[ Hits: 105 | Votes: 0 | Rating: 0 ]

Patented RF choke test - PA3FWM
A reproduction test of a a binocular ferrite core and winds a total of 7 ...

[ Hits: 105 | Votes: 0 | Rating: 0 ]
Chokes and Temperature changes - PA0NHC
The influence of temperature changes in Common Mode Chokes To get an indication of the ...

[ Hits: 46 | Votes: 0 | Rating: 0 ]

The Quarter-wave stub - LA8OKA
The Quarter wave stub can be used for many purposes If it is left with ...

[ Hits: 136 | Votes: 1 | Rating: 8 ]

Enhancing Performance with W8JK/MOXON Antenna Variant - F5NPV
F5NPV introduces a variant of the W8JK antenna design employing the MOXON principle With extended ...

[ Hits: 183 | Votes: 0 | Rating: 0 ]

Angle of OCF L-Dipole Antennas - kk4obi
This page is a discussion about impedance matching by Off Center Fed dipoles in the ...

[ Hits: 76 | Votes: 0 | Rating: 0 ]

Antenna Measurements - Bevelacqua
Testing of real antennas is fundamental to antenna theory The most common and desired measurements ...

[ Hits: 61 | Votes: 1 | Rating: 10 ]

The Smith Chart - Bevelacqua
This tutorial introduces and explains Smith Charts and then gives an introduction to impedance matching ...

[ Hits: 116 | Votes: 2 | Rating: 9.5 ]

The Squid Pole Wire Antenna Re-visited - VK4ADC
The author explores enhancing the performance of a 7 meter fiberglass squid pole wire antenna ...

[ Hits: 92 | Votes: 0 | Rating: 0 ]

Transmission Line Details - AC6LA
This utility program shows the impedance and reflection coefficient parameters SWR reflection coefficient magnitude Rho ...

[ Hits: 128 | Votes: 0 | Rating: 0 ]

WIFI Remote FUCHS ATU for EndFed Antenna - F5NPV
The Fuchs Antenna tuner with a resonant circuit as a coupler The Fuch Antenna Tuner ...

[ Hits: 117 | Votes: 0 | Rating: 0 ]

JRC NVA-88 Modification - JRC
Adding 2 RCA inputs 1 high impedance filtered audio output RCA 3 3 HIGH PASS ...

[ Hits: 55 | Votes: 0 | Rating: 0 ]

A compact 5 bands remote switchable BPF - ON7EQ
These band filters are based on 3 or 5 sections Butterworth band pass filters maintaining ...

[ Hits: 224 | Votes: 0 | Rating: 0 ]