5m antennas

5m antennas

Categories

Antennas : Collinear

• 7dB VHF Collinear Antenna - This project is about a cheap way of building a colinear antenna for VHF 145MHz, and having about 10dB more gain than that little 1/4-wave magmount
  [ Hits: 4756 | Votes: 15 | Rating: 6.41 ]

• Fan Dipoles 10/15/20m and 12/17/30m - How to build Fan-Dipoles by DK7ZB. Experiences with various band combinations. Not all combinations are working properly. If the frequencies are to close together the impedances will lead to a very bad SWR. This happens with the bands 10-12-15m or 15-17-20m.
  [ Hits: 488 | Votes: 2 | Rating: 9.5 ]

• Phased Arrays - Phased arrays of short vertical antennas. A technical notes from Butternut antennas on phased vertical arrays
  [ Hits: 4732 | Votes: 9 | Rating: 6.25 ]

• 222 Mhz Yagi Antenna - VE3CVG 222 MHz (1.25m) 6 element plumber's delight yagi antenna
  [ Hits: 1161 | Votes: 3 | Rating: 4 ]

• PA5MW Ham Radio Blog - Ham radio Blog, focusing on homebrewing and testing antennas, rig mods and contesting.
  [ Hits: 710 | Votes: 4 | Rating: 9.75 ]

• International Technology Antennas - French manufacturer (F5MSU) of antennas and accessories since 1999 : Yagi, Delta-loop, dipoles, T2FD, verticales, EFHW, baluns, ununs, etc.
  [ Hits: 5159 | Votes: 44 | Rating: 9.59 ]

• A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
  [ Hits: 2043 | Votes: 4 | Rating: 6.5 ]