446 mhz yagi

4N1SM 5 elements yagi for 15 Meters - EF155A1 21 MHz monobander antenna by YU7EF

Building High Power, High Q, Loading Coils - This page describes the loading coil (inductor) that W8WWV built for my center-loaded 160 meter (1.83 MHz) vertical antenna.

3 Element yagi for 17 meters band - 17 Meter 3 element TA33 junior mono band yagi antenna conversion project by K6TC

2 meter 1/4 wave Ground Plane - 146 Mhz quarter wave antenna plan

144 Mhz Magnetic Loop - A magnetic loop antenna for 144 mhz, two meter band

2 Meter Turnstile Antenna - Here are construction plans of a Turnstile antenna that can be used for space communication on the 2 meter amateur radio band. Specifically for 145.80 mHz

VHF J Pole for 146 Mhz - KF4SCI project for a VHF UHF jpole, working on 220 and 440 Mhz

HB9MTN DDRR Antenna for 50 Mhz - Pictures and dimensions of and HB9MTN DDRR antenna for 6 meters band

J Pole antenna for 6 meters - Homebrewed jpole antenna for 50 mhz by IW0BZD, include pictures and schematics, in italian.

4 el yagi for 50 Mhz - The EF0604S a 4 elements yagi antenna plan for six meters band by YU7EF

Quadrafilar Helix antenna for 436 Mhz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.

440 Mhz J-Pole Antenna plans - Here is a 70cm (440 Mhz) J-Pole antenna that is inexpensive, and easy to build. Author use 1/2 inch copper pipe, and the associated fittings necessary. The dimensions aren’t typical however, this is what it took to get its SWR low.

The Beverage Antennas - Beverage antenna description for long wave reception, article published on Megahertz magazine in November 1900, in french

"Halfer" End-Fed Halfwave Antenna  ^pop - End-Fed Half-Wave Antenna for the 7 or 10 MHZ amateur bands intended to provide a very simple to erect yet effective portable QRP antenna.

144-430 portable j-pole antenna  ^pop - A portable dual band j-pole antenna

Super J-Pole for 435MHz - The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs (Tuning stub) feed with a folded matching stub by vk6ysf

Dual Band J Pole - Dual band J pole operational over the entire 6Mtr band (50 – 54MHz) and the entire 2Mtr band (144 – 148MHz), slightly favouring the upper half of both bands by VK6YSF

An Unusual Magnetic Antenna - This article by OK1FOU describes how to build a relatively small loop antenna which can be placed for instance at the balcony. It is especially suitable for a two band antenna covering two adjacent amateur radio bands (10/14 MHz, 14/18, etc.)

The G3BGR Magnetic Loop - This ia a home built Magnetic loop antenna which was used by G3BGR, indoors on 7,10 and 14Mhz. The basic idea was in Radcom 1986

HB9AGD Magnetic Loop - Pictures and antenna plan of a magneti loop antenna working in the range 6.650 7.250 Mhz in french

144/430 dualband J-Pole antenna - A simple and cheap dualband j-pole antenna for 144 and 430 MHz

23cms antenna - The DL6WU 23cm YAGI, The Bassoon 3 band J-Pole antennas, pictures and building plan

Rete QRSS/QRPp a 28.322 MHz - A QRSS Blog

Portland Amateur Radio Club - One of the Portland ,Oregon metro area's oldest club, all are welcome, if you are in the area, our club repeater is on 146.840 mhz

AM-6154 FAA Amplifier circuit conversion - AM-6154 222MHz grid Conversion Information by N0UK