transmission cable veloc

[TowerTalk] Coax Vs Open Wire Line - Discussion at towertalk about coax cable feed lines vs Open Wire Lines

From Transmitter to Antenna - A collection of articles on the subject of impedance, impedance matching and high-frequency power transmission by G3YNH

Coaxial antennas - G3TXQ study on coaxial cable demonstrate that it can reduce an element's length by something approaching the Velocity Factor of the cable

Portable Aerial based on the Slim Jim - A modified Slim Jim end fed aerial made out of 300-ohm ribbon feeder cable.

Matching Waves, VSWR at work - When the radiation resistance (voltage to current ratio) of an antenna is the same value as the characteristic impedance of the transmission line (voltage to current ratio in the line), all of the electrical energy transmitted down the line is taken by the antenna and radiated into space in the form of a radio wave.

Single-stub matching - Single-stub matching of transmission lines to loads A worked example

Numbers Stations - About numbers stations, and their criptic transmissions, where to listen to them and some audio recording samples by fascinating shortwaves

PL-259 Installation Made Easy for RG8X - From TenTec Inc a video that illustrate a PL-259 installation on a RG8X coax cable

Wintenna - Products for mobile communication. Boomerang family of TV antennas, many models of CB antennas, mobile and base station scanner antennas, cordless telephone antennas, cellular antennas, mounts, cables assemblies, and accessories.

RFS - Radio Frequency Systems (Formerly Celwave, Cellwave, Cablewave),Wifi antennas, duplexers.

TIM-CO - authorized distributor of electronic components; connectors - commercial and military, passive and electro mechanical components, RF-coax cable assemblies

RF Industries - RF Coaxial connectors, adapters, installation and test kits, Coaxial cable assemblies

Wire Harness Assemblies - Printed Circuit Board, Custom Overmold Cable Assembly, Box Build, System Integration, Sheet Metal

Meteo Fax and RTTY frequencies - List of freqencies where is possible to listen to teletype RTTY meteo fax transmissions

Digital Amateur Television - First Amateur DVB transmissions in Finland !

TH-D7E modifications - Extending reception and transmission of a Kenwood TH-D7, upgrading firmware, enabling the SKY-COMMAND

Palm III to Kenwood TH-D7A/E - Palm III cable schematic to connect a TH-D7 handheld transceiver

Ham Radio Deals - Dealer for Alpha Delta hf antennas, switeches, Outbacker and super antennas, morse code keys, coax cable and military products, managed by W8GEG from Medina Ohio

RF Stuff - Online shop for two way radio communications and amateur radio products, antennas, coax and cables, adapters and mounts, accessories and audio parts

Shack Supplies - Shack Supplies are a leading UK supplier of Amateur Radio equipment, we also specialise in the supply of Marine Radio & Maritime related electronics equipment. Yaesu Kenwood Icom Alinco transceivers, Morse keys, antennas, analyzers, cables connectors, Receivers, power supplies and more.

Miltimonitor - Linux Radio Transmission Decoder support AX.25 POCSAG DTMF ZVEI by Thomas Sailer, HB9JNX/AE4WA

linsmith - A Linux Smith charting program. You can enter either discrete components or transmission lines, see the results on screen and/or generate Postscript output. Component values can be changed numerically or using scrollbar

Coaxial Cable The neglected link - The purpose of this document is to show the transfer impedance and shielding effectiveness of different types of coaxial cables

A 25 Watt Dummy Load - Dummy load described here can be used for up to 35 watts for short transmissions, and up to 25 watts for longer periods.

N2PK Vector Network Analyzer - Homebrew VNA capable of both transmission and reflection measurements from 0.05 to 60 MHz