Field Day Antennas

Antennas we have used, or are considering for Field Day use

Some Links

Dipoles

• Extended Double Zepp (EDZ) (1.25 wavelength dipole)∞
  • approx 2.9 dBd gain
• Dipoles, other lengths (100 feet, halfwave)
• Buddipole

Beams

• SpiderBeam (proposed)
  • 3.8 sq ft wind load
  • ? mph rated
  • 16 lbs
  • 33 ft boom
  • 16 ft turn radius
  • 7x11x47 travel
  • 10-12 dbi 4.5-4.9 dbd
• HexBeam (proposed)
  • 5 sq ft wind load
  • ? mph rated
  • 20 lbs
  • 19 ft boom
  • 9.4 ft turn radius
  • 6x6x43 travel
  • 4.5 dbd
• Moxon Rectangle∞
• TH3JR beam (FrankK)
  • specs??
• CalV's beam ant?
  • Thunderbird TH3 MK3. The docs that I had were for the TH3 MK4. The measurements are very close. but the beta match is a bit different between the two. The MK3 uses hollow and longer tubes where the MK4 uses solid and shorter rods.
  • The weight of it comes in at a whopping 36 lbs.
  • Gain is 8dB (compared to what, in what condx. prob about 5 dBd)
  • F to B 25 dB
  • max power in 1kw AM

• GlennT's big beam (Cushcraft A3S? or ??)
• Steppir 2 Element (Glenn's)
  • 4.0 sq ft wind load
  • 100 mph rated
  • 30 lbs
  • 36 ft element
  • 5 ft boom
  • 18 ft turn radius
  • 12 cond cable
  • 4.2-3.8 dbd

Verticals

• Force12 Sigma 5 (AlanB)
• J Pole
• Vertical Dipole (MikeF)

Other Wire

• VeeBeam (GlennT, MikeF)
• Inverted L (AlanB)

Balloon Antennas

• 5/8 wave vertical on 80 meters
• other thoughts?
• ground systems??

To get those antennas way up there see: Pneumatic Antenna Launching∞

Gain Notes

• use dBi or dBd compared to dipole in same location

see also FdAntennaSupports

AlanB