40 antenn

40 antenn

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• W1ZY 40 meter moxon antenna - W1ZY's 40 Meter MOXON is the product of 9 months of experimentation. The final array is reversible and constructed from No. 12 insulated wire fed through two RF current baluns
  [ Hits: 3344 | Votes: 2 | Rating: 6 ]
• JA7KPI Windom antenna for 40-80 - The total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm. JA7KPI modified this antenna originally used as Inverted-V type of 80m band Dipole. Works on 40 - 80 meters band with acceptable swr.
  [ Hits: 7715 | Votes: 8 | Rating: 6.25 ]
• 40 meter double bazooka antenna - A double bazooka antenna plan for the cw portion of the 40 meter band
  [ Hits: 9277 | Votes: 20 | Rating: 5.5 ]

• Rotary Dipole for 30 and 40 meters band - Drawings pictures and notes on a rotary dipole antenna for 30 and 40 meters band
  [ Hits: 10406 | Votes: 1 | Rating: 2 ]

• 40-meter Rectangular Loop Antenna - A 40-meter antenna that provides good local and regional coverage during the day and good DX capability at night
  [ Hits: 2251 | Votes: 2 | Rating: 3.5 ]

• The Hudson antenna - A vertical antenna for 80 and 40 meters project with lots of assembling pictures and plan by LU9DPD in spanish
  [ Hits: 2815 | Votes: 1 | Rating: 10 ]
• 40m broadband vertical antenna - A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI
  [ Hits: 6569 | Votes: 15 | Rating: 7.52 ]
• Backyard 7 Mhz Vertical - A vertical antenna for 40 meters band by PA5MW
  [ Hits: 1328 | Votes: 0 | Rating: 0 ]
• A portable 10/20/40 mt vertical antenna  ^pop - A portable vertical antenna for 10 to 40 meters, designed for mobile operations can be used in a car as seen in pictures. A modified version for 20 and 40 meters is described too.
  [ Hits: 81651 | Votes: 55 | Rating: 5.01 ]
• A 30/40 meters band vertical anetnna - A shortened 30/40 meters band vertical antenna in italian
  [ Hits: 7608 | Votes: 1 | Rating: 1 ]

• QRP Fan Dipole - Attic Fan dipole antenna that allow to operate QRP from 40 metres to 10 metres, specifically 40, 20, 17, 15 & 10 meter band
  [ Hits: 8498 | Votes: 8 | Rating: 5.63 ]

• Four square phased verticals - This page is a short description of the four phased verticals system i've build and used. It is primarily intendend to be used on the lower bands 160m, 80m, 40m.
  [ Hits: 3258 | Votes: 16 | Rating: 6.76 ]

• Shortened antennas - Drawings of shortened antenna for indoor usage, using short pvc tubes for 2 , 20 and 40 MHz by f1rfm
  [ Hits: 6848 | Votes: 3 | Rating: 4 ]

• HF Magnetic Loop Antenna - Local and DX contacts from tight spaces, it works from 40 to 17 meters
  [ Hits: 2428 | Votes: 2 | Rating: 7 ]

• 6-Band Windom antenna  ^pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio bands
  [ Hits: 50581 | Votes: 45 | Rating: 6.82 ]

• A Q&D Multiband Antenna - A brick, some PVC tubing and a few other common hardware store items can be transformed into an effective Quick and Dirty RF-launcher for less than $25! By Michael Atlas, N7FC
  [ Hits: 1837 | Votes: 0 | Rating: 0 ]

• BiQuad Antenna for 144/440 - This is a vertically polarized Broadside and Collinear Array each Loop is a vertically polarized Broadside Array both the right and the left side of the Loop is a bent 1/2 wave dipole working 180 degrees out of phase with the other one and that gives you 4.15dbi of gain by KE4UYP
  [ Hits: 7600 | Votes: 14 | Rating: 4.86 ]

• Types of Coax in Satellite operations - Coax is a very important part of a satellite station. It is almost as important as the antennas you choose. This article discusses choosing coaxial cables for satellite communication, emphasizing factors like line loss. It compares types such as RG-8, RG-58, Belden 9913/9913F, LMR-400, and hardline, highlighting their impact on signal preservation.
  [ Hits: 2397 | Votes: 1 | Rating: 9 ]
• 2400 MHz Helix Antenna - This antenna is easy to build and suitable for broadband work, satellite work and terrestrial work.
  [ Hits: 8807 | Votes: 8 | Rating: 7.5 ]

• Shortened vertical antenna for 7 Mhz - A simple drawing of a shortened antenna for 40 meters by using a PVC tube
  [ Hits: 3222 | Votes: 2 | Rating: 4.5 ]

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