make trap cover

Trapped dipole for 80 and 40 m - This article explores a theoretical model for the losses of an 80m / 40m trapped inverted V dipole antenna system using a bootstrap coax trap, but does not examine the pattern of the antenna.

Antenna Trap Calculator - Design your own antenna trap online

Home Brew Loading Coil for AD5X Vertical - How to make a loading coil for the AD5X portable vertical antenna

Multiband HF antenna - A multiband hf antenna for restricted spaces covering 80 40 20 15 meters Based on the VK2ERG shortened 80M dipole

An Improved Multiband Trap Dipole Antenna - This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX

Easy tuning an building of traps  ^updated - A new and simple method for tuning traps. You need 2-3Watt of your TRX and two homemade coupling coils by DK7ZB

PA3HMP Antenna Traps - An original way to build antenna traps

Vertical trapped antenna - An HF multiband trapped antenna in french

CO2KK Wire antenna for 50 Mhz - 6m (50Mhz) Long wire antenna There is another form of long wire antenna which provides uni-directional coverage and is easy to build. Description by Arnie Coro CO2KK

Antique Radio Repair and Restoration - Classic Radio Restorations specialize in professional repair and restoration on all makes and models of antique radios and vintage phonographs. Since 1978.

The CQ iDX Award - The CQ iDX Award encourages the development of a DXing mindset by recognizing the accomplishments of those amateurs who make confirmed contacts with between 25 and 100 different DX countries

Mackenzie Highway Network - The Mackenzie Regional ARC currently Operates the VE6PRR (146.82- ) repeater. It's located approximately 15 Km North of Peace River. It is linked to the SARA system via Grande Prairie. We are currently in the process of expanding the coverage by adding number of repeater sites through out the area.

North California Live Scanner - Listen to a law enforcement live scanner from north california usa. Areas covered include Red Bluff, Mendocino, Shasta-Trinity, Tehama and Butte

MDS-HAM Amateur Radio Products - MDS-HAM Amateur Radio Products help make operating easier with the Introduction of the RC-1-Y, and RC-1-M rotor control box. A digital rotor control box with a serial computer interface at an affordable price which is made in America.

K6XX CW Indicator Kit - The purpose of this circuit is to light a LED in your radio when you tune to within +- 20hz of a cw signal. This makes for easy tuning of a cw signal by eye rather than by ear

TowerWorx - Mobile and portable towers for the use in temporary cell phone coverage, military use and mobile communications for surveillance and emergencies

How to make an APRS IGATE - How to make an APRS IGATE using Linux, soundmodem and aprx by HA2NON

VK3RVZ IRLP Node 6506 - VK3RVZ IRLP Node 6506, covering the Port Phillip bay area and inner suburbs

YAESU FL-2100Z Amplifier Repairs - The FL-2100Z amplifier referenced in the following images is the 6-Band model covering 10m thru 160m (no WARC bands) and not the 9-Band version that included the WARC bands. Modifications, schematics and manual

FT-847 General Coverage Mod - General Coverage TX Mods by G1IVG.

SPLAT! for Windows - This free software is useful for visualizing terrain and performing Longley-Rice path loss and coverage prediction using the Irregular Terrain Model. A Windows port of the Linux-based SPLAT by John Magliacane.

Freakin’ Beacon Setup Program - A small program to simplify changing messages in the Expanded Spectrum Systems Freakin' Beacon controller. The program makes it easy to modify an existing message or to have multiple messages available in different files ready to program into the beacon controller.

100 W Resistive Load - This was a project to make a dummy load or, as the finished thing is more correctly labelled, a fifty ohm resistive load.

1.8-54 Mhz Low pass filter - An easy to make HF low pass filter form high power by k8cu

Vacuum Tubes - This overgrown page covers all kinds of vacuum-tube electron devices, especially receiving tubes.