VE6JY - DON MOMAN
40 Meter Antenna system.

• The 40 meter station is usually set-up with the ability to select from one or more of the full size 40 meter beams and/or the Log.
• The switching system allows each antenna to be used at the same time or each separately.

• There is a 5 element full size OWA style yagi
  • It is mounted on the 40 meter (East tower).
  • The antenna was build on 14.9 Meter (59 foot) boom and is mounted at 46 meters (150 feet).
  • The rotator is an AlfaSpid Big RAK
    • Picture of the 5 element full size (no traps or loading) soon.

• A 3 element full size yagi
  • It is built on a 12.1 meter (40 foot) boom
  • It is installed at 36.5 meters (120 feet) on the "test" tower.
  • This antenna is turned by the Alfaspid rotator .
  • Picture of the 3 element full size (no traps or loading)soon
  • The rotator is an AlfaSpid RAK mounted at the bottomof the tower.
    • Picture of tower soon

• Log periodic
  • Model MLP-4 made by Sabre
  • 9 db at 4.0 Mhz, 13 db at 8 mhz
  • 12 db Front to back Ratio ( average )
  • The Log has a frequency range of 4.0 to 30 Mhz
  • The Boom length is 18.9 Meters (62 feet) and supports 19 elements.
  • The Boom face is about 45 Centimeters (18 inches)
  • The tower is 34 Meters (113 feet) high
  • The tower has a face of 60 Centimeters (2 feet)
    • Picture of the LOG antenna.