ladder

160 meters long wire antenna - The Ladder-line Twin-lead Marconi Antenna system for 160 meters band

300 ohm twinlead 40 meter dipole - The N2CKH travel special 300 Ohm ladder line convertable antenna

W1AB Killer Antenna - An elevated ground plane sized as a 40 meter antenna but fed with ladder line and antenna tuner for hf and 160 meters.

80m Vertical Loop - The configuration of this antenna is a triangle with apex in the top of a very tall tree. The antenna is fed at a bottom corner using 450 ohm ladder line.

Beverage antennas - Two Wire Beverages, using ladderlines, Adding Surge Suppression to a Beverage, Supporting the Beverage Wire

All About Ham Radio Ladderline - Ladder Line Myths, Line Types, Spacing and Impedance, Length by KV5R

All About Ham Radio ladder-line - ladder-line is great - extremely low loss, even at high SWR. However, many hams refuse to use it because they are afflicted by common misconceptions

Homebrew ladder line - Homebewing ladder line discussion at qrz.com

Home-Made Ladder Line - K2HYD illustrate how to home made ladder line

2 Meter J-pole from 450-Ohm Ladder Line  ^pop - Great first time J-pole project. Covers most of the basics. This small and thin design also makes it good for several stealth applications.

J Pole antennas variations on a theme - Twin lead jpole, ladder line jpole, copper cactus j pole, material list to build your own jpole antenna and a brief history of Jpole antennas.

Ladder line J-Pole - Building a VHF or UHF Ladder Line J-Pole Antenna

Portable 2 Meter J-Pole - This is a simple portable 2-meter J-Pole antenna. You start with a piece of 450-Ohm Ladder Line

160 meter full wave loop antenna  ^pop - The antenna is a 10 - 160 meter horizontal loop fed with 450 ohm ladder line all the way into the ham shack to an Palstar AT1500BAL balanced line antenna tuner

W4JOH Cobra Antenna - The original Cobra antenna, is a multiband 160 or 80 to 10 meter, designed by W4JOH is built using standard insulated wire of about 14 gauge and fed with 450 ohm ladder line down to the shack into a tuner.

Ladder Feeder Slim Jim Antenna - A good starter project is this Slim Jim antenna for 2 Metres using 450Ω Ladder Feeder

Ladder Feeder Dual Band Antenna - 450Ω Ladder Feeder Dual Band Antenna

Cebik antennas and limited space dipoles - An analysis of the cebik dipole and other small limited space dipoles fed with open wire ladder line.

W7FG Ladder Line - True Ladder line and Wire antennas

CoaxMan - The Coaxman by Clear Signal Products, Inc. features a complete Wireman line of coaxial cable and antenna wire. Antenna wire, baluns, coax connectors, insulators, ladder line, magnet wire, rope.

Emtech - Quality QRP, Antenna Tuner, and Ladderline Insulator Products

Better Metal LLC - Manufacturing distributor of infrastructure products for the telecommunications industry; antenna mounts, ice bridge, cable ladder, ground bars, weatherproofing, exothermic, safety equipment.

The Ladder Filter - Article by Lloyd Butler VK5BR

Bandpass and I.F. Filters - On this page a popcorn highpass filter, some inductors and their Q , double tuned bandpass filters and simple Cohn Crystal ladder IF filters are presented.

7 MHz SSB Transceiver  ^pop - Circuit diagram and discription of 7 MHz Ham Radio SSB Transceiver. Transceiver using two MC1496, 4.43 MHz Ladder filter, LM386, LM324 and IRF840 in final.