diy swr meter

A dual band wire beam for 17 and 12 meters - This wire beam Moxon antenna offers double duty on 17 and 12 meters with one 50 Ω feed line by Allen Baker, KG4JJH

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.

Antennas for the Low Bands - Articles on TX and RX antennas for the low bands, 80 and 106 meters by John Tait

Is this ewe for you - A really simple receiving antenna for 80 and 160 meter dxing by WA2WVL

160-meters antenna problems and solutions - Bill Orr W6SAI ham radio techniques. Improving ground connection, computer analysis of the antenna, modelling sample antennas pdf file

IK4CIE receiving loop for 160 meters - A receiving only loop antenna for 160 meters band by IK4CIE Vittorio, in italian

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

Inexpensive 17-Meter Vertical - A low cost, low profile DX antenna fro 17 Meters

Endfed 20/30 Mtr Antenna - Article with detailed pictures of an endfeed antennna for 20 and 30 meter band

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

HB9RU/MTN Beam antenna - The 2 meters version of the HB9RU antenna in german

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

A 40 meters DDRR Antenna - A direct drive ring radiator antenna for the 40 meters band by W6WYQ QST article.

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.

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.

Hex Array - 80/40 Meter Vertical - This page describes a homebrew 80/40 meter trap vertical antenna. Includes an interesting antenna raising system that allow easy setup and tuning.

KB1DIG's 5/8th Wave Colinear - Pictures of a PVC 2 meter j-pole antenna

Hentenna for 10 meters - Designing an Hentenna antenna for 10 meters band

Hex Beam by K4KIO - This site provides guidelines to build a G3TXQ broad band hex beam RF antenna for the 5 ham radio bands, 20, 17, 15, 12 and 10 meters. The G3TXQ hex beam is a new development and actually easier to build than the classic hexbeam.

Antenna Impedance measurement - When experimenting on an antenna it's often important to determine its feedpoint impedance at various frequencies across the operating band. It's easy enough to measure SWR, but sometimes we need to know more detail than this

160 m receiving loop - KC22TX receiving loop antenna for 160 meter band

160 m Balanced Coaxial Receiving Loop Antenna - KN4LF explanation of the 160 meter balanced coaxial receiving loop antenna, easily adaptable to a 40 and 80 meters band

Base Loaded 160M Half-Sloper Antenna - If you want an antenna resonoant on the 160 meters band this is a possible solution, but of course, need space.

SWR vs. Loss - Table of power loss to SWR relation