heil sound cable

A Cost Effective Current-mode 1:1 Balun - A cost effective current-mode 1:1 balun can be constructed from a length of coax and a rod typically used for a broadcast antenna loop-stick, some electrical tape, cable ties, a length of PVC water-pipe and some connectors.

The Guanella 1:4 balun - A cost effective current-mode 1:4 balun can be constructed from two lengths of coax, two ferrite rods, some electrical tape, cable ties, a length of PVC water-pipe and some connectors. This form of 1:4 current-mode balun is named after G. Guanella.

Coax Dipole Calculator - An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB

Wire antenna with coaxial cable traps - This multiband antenna 10-80 meters is a home made project by I1BAY. Has been used for SOTA activations with great results. Traps are done with coax cable turns, dimensions are in the attached schema.

Build a hanging dipole for 2 metres - Described here is a simple omni-directional, vertically-polarized dipole for two meters. Made from coaxial cable, it can be rolled up and stored in a small container

How to make a Simple Dipole Antenna - It is very easy to create a simple 1/2 wave dipole, all you need is some lengths of wire such as the core of some mains flex or even a straightened out metal coat hanger, some co-ax cable and a connector for your scanners antenna input

Making a half wave coax cable - How to make a half l or quarter l coax cable for a specific frequency

Coax Cable Specifications - Coax cables, pictures and specifications

A quadrifilar helix weather satellite receiving antenna - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable.

Folding J-Pole Antenna - Also known as the Backpacker's Delight Antenna. This Folding J Pole Antenna is the original design of Mike Heiler KAĜZLG and was featured on the Front Cover of the March 2005 QST Magazine.

Coax Monopole antenna - OE1MWW monopole antenna made with common RG 58 or RG 213 coaxial cable

Digi Mode Sound Files - Mp3 and wav files linked from this page are intended to help your understanding of what the different digital modes sound like

RT Systems - Radio Programming - Windows programming software for Icom and Yaesu amateur radios and scanners and receivers by RT Systems. Produce radio programming cables for Yaesu Icom Kenwood radios

PSK31 Interfacing - PSK31 basics and radio to pc soundcard interface circuits, radio to soundcard, soundcard to radio and pc serial port to radio

PC Connection Cable for Yaesu FT100 - A simple cable for the yaesu FT-100 or FT-100D and a PC by interfacing audio and serial ports. In Italian

Coaxial Bulk Cable - This page shows the coaxial cable and connectors needed to wire your home for tv

Asia Radio Sales - Online shop based in hong kong offer batteries mic speakers adaptors programming cables earpieces telescopic antennas handheld antennas desktop chargers handheld speakers. Kenwood Icom Yaesu and Alinco dealer

TWPSK - A linux soundcard based PSK program by DL9RDZ and WA0EIR

TWCW - This linux program will send Morse Code via soundcard or serial port by WA0EIR

BIP Electronics Lab Oscilloscope - Freeware windows oscilloscope uses the sound card's input to measure signals. This means that the quality of the scope depends on the quality of your sound card. The scope automatically uses the highest sample frequency available at the input that you select

SweepGen - SweepGen turns a PC into an Audio Oscillator and Sweep Generator which can be used for testing audio or educational purposes. In conjunction with audio test instruments, you can make frequency response plots. SweepGen uses the sound card in your PC to produce sinewaves

Sine Wave Generator - Freeware windows Wave Generator use the sound card's output as sine wave output. A built in sweep algorithm is used by audio hackers to measure frequency repsonses of their amplifiers

Making Crimp-On connectors for RG-213 coax cable - The construction process of making crimp-on connectors.

Coax cable data - Characteristics of commonly used transmission lines

Common Coax Data - A table summarizing common coax cables features