WX9DX Quad Antenna - Resource Detail - The DXZone.com
Fiberglass Cubical Quad Spreaders - Max-Gain Systems, Inc.
easy quad calculator enter center frequency to get a quad antenna size. This resource is listed under Antennas/Antenna Calculators | Antenna, Quad, Antennas
2 Meter Quad Antenna
Designing VHF/UHF Quad Antenna - Resource Detail - The DXZone.com