simple ptt

Making a simple current balun - Baluns using ferrite rod and ferrite ring by M0SCG

The Simple Collinear - Wherever there is a need for a vertically polarized omni-directional antenna with gain, a collinear is used. The vertically polarized collinear takes the form of two or more half waves in-line and in-phase, resulting in an omni-directional pattern with maximum radiation near the horizon.

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

Make your FM Dipole antenna - There is a simple, homemade antenna that can pull-in your favorite station.

Simple FM Dipole Antenna - FM Dipole for 88-108 MHz

K7MEM Center-Fed Half-Wave Dipole ( 3-30 MHz) - A Center-Fed Half-Wave Dipole is probably the simplest of antennas to construct and use. It is usually suspended between two supports, from it's end insulators, and has the feedline hanging from the center.

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

A cheap and easy TV antenna - A simple, cheap, efficient tv antenna that you can make yourself.

The DBJ-1 VHF-UHF Dual Band J-Pole - Searching for an inexpensive, high performance dual band base antenna for VHF and UHF ? Build a simple antenna that uses a single feed line for less than $10.

Bicone antenna - This antenna is a simple double bowtie biconical dipole design. It was designed as a broadband scanner antenna resonant on the 2 meter ham band.

D3 Antenna for Field Day - D3+ High Performance Antennas for Field Day. This article describes versatile broadband wire antennas. These antennas will double your effective radiated power over a dipole, will be easy and inexpensive to build and install, and will be simple to match.

Long Island Amateur Radio Club - 575-Long Island Amateur Radio Simplex Club, Operating locally on 147.575 FM Simplex from Grid Square FN-30

N0NBH Solar Terrestrial Data - Add Solar-Terrestrial data to your website, by adding a simple html code to your pages by Paul L Herrman

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

The SWDXer - SWDXer is the one stop resource for shortwave radio information. Articles include antennas and simple electronics construction.

QSLMGR - This simple tool let you handle QSL manager data by ON6DP database by HB9CIC

Fox Delta Satellite Tracking Interface Priority listing - A simple PIC16F688 satellite Tracking interface for yaesu ratators.

Relay Driver for Power Amps - A simple but complex relay driver for power amplifiers

Active attenuator - This active attenuator works as a simple mixer by WB2HOL

Simple adjustable passive attenuator - This adjustable passive attenuator works as a "waveguide beyond cutoff." It can be constructed in about ten minutes from parts available locally.

ZS1I beacon keyer - This article describes a simple programmable Morse Code Continuous Wave (CW) beacon keyer for HF, VHF, ARDF and tracking beacons

Simple anti-static device - With all the wire you have out, you may run into a problem with static buildup on the antennas. This static may try to make its way into your receiver, causing you major problems and damage that can run into a lot of money.

Small Unregulated Power Supply Project - Here's a simple power supply that can be used in many applications. It is not regulated , so keep that in mind for voltage sensitive devices , and of course you will need to understand how to select the correct amperage and voltage for the AC transformer.

PSK31 Interface - Fairly simple way to interface a computer soundcard to an HF rig to operate PSK31. This interface also works for SSTV & RTTY, and has been tested with a Kenwood TS-140.

The simple man's Spectrum Analyser - An easy to build spectrum analyzer