q match

105 links

J-Pole Antenna for 50 MHz - DK7ZB
This J Pole is mounted on a fishing rod The radiator L1 is an isolated ...

[ Hits: 223 | Votes: 0 | Rating: 0 ]
Half-Size 6 meter J-antenna - Dick Reid, KK4OBI
How to use a little known J antenna characteristic to reduce a conventional 14 foot ...

[ Hits: 63 | Votes: 0 | Rating: 0 ]

Cross-Yagi 10el Antenna for 70cm - UR3QQJ
10 Elements Cross Yagi Antenna for 433 MHz The base of the 10el antenna is ...

[ Hits: 177 | Votes: 6 | Rating: 8.83 ]

The Story of the Broadband Dipole - W6NL
A dipole can be broadbanded by a number of techniques including by matching with resonant ...

[ Hits: 415 | Votes: 0 | Rating: 0 ]

QRP End-Fed for 40m 20m 10m - VK3YY
This antenna build was strongly inspired by the well known PAR end fed antenna The ...

[ Hits: 170 | Votes: 3 | Rating: 9.67 ]
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 ]

To transform ot not to transform - Feed Lines - KG4ZNC
Transmission lines have many uses other than simply transferring RF power from one point to ...

[ Hits: 137 | Votes: 0 | Rating: 0 ]

Multi-Band 4 Foot Magnetic Loop with Gamma Match - AA1IK
This antenna works on 17 20 and 30 meters with the best bandwidth on 20 ...

[ Hits: 141 | Votes: 2 | Rating: 10 ]

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 ]

Satellite Yagi crossed 2m, 70cm - VE2EK
Construction of an antenna for experimental satellite communication 8el 435 Mhz x 4el 145 Mhz ...

[ Hits: 148 | Votes: 0 | Rating: 0 ]

Stacking, Phasing and Matching Yagi Antennas - VK2ZAB
This is a synopsis of a talk presented to the Sydney VHF DX GROUP by ...

[ Hits: 241 | Votes: 2 | 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 ]

A QRP Transmatch ATU - DL1GSJ
A home made Antenna Tuner made with a simple inductor and a few spare parts ...

[ Hits: 205 | Votes: 0 | Rating: 0 ]
L-Match Tuner Build for QRP Operation - Ryan Flowers
An L Match tuner is a device that can add either inductance L or capacitance ...

[ Hits: 186 | Votes: 0 | Rating: 0 ]
Z Match with Toroid - G3VGR
A single coil Z Match This QRP version by G3WQW using a T130 2 toroidal ...

[ Hits: 100 | Votes: 0 | Rating: 0 ]
QRP Z Match Antenna Tuner Project - ON5IA
A Home made antenna tuner for QRP transceivers This small tuner is the ideal for ...

[ Hits: 109 | Votes: 1 | Rating: 10 ]

20 W HF Power Amplifier - IN3OTD
A HF power amplifier with a push pull of AFT09MS015N The small signal gain of ...

[ Hits: 175 | Votes: 0 | Rating: 0 ]

RF Impedance Matching Calculator - Analog Devices
Calculates the network to match a line to a specific complex load This online tool ...

[ Hits: 196 | Votes: 1 | Rating: 10 ]
Online Toroid Multi Calculator - toroids.info
This website provide online calculator for several values about a large variety of toroids Freq ...

[ Hits: 213 | Votes: 3 | Rating: 5 ]
Resistor combination finder - IN3OTD
If you need a non standard resistor value you could probably realize a close match ...

[ Hits: 56 | Votes: 1 | Rating: 10 ]