EF-QUAD EndFedz® Antenna
Polarity: Depends on mounting configuration
Design Z: 50 Ohms
V.S.W.R. Bandwidth 40 meters: 300 kHz 1.5:1
V.S.W.R. Bandwidth 20 meters: 350 kHz 1.5:1
V.S.W.R. Bandwidth 15 meters 450 kHz 1.5:1
V.S.W.R. Bandwidth 10 meters 500 kHz 1.5:1
Power Handling: 200W SSB/ CW 50W AM, keydown digital
Weight: 2 lbs.
Hardware: Stainless Steel
Connector: Silver/Tefon SO-239
Radiator #18 black polyethylene coated copper-clad
The EF-QUAD is shaping up to be the most popular EndFedz yet! A higher wattage multi-band version of our immensely popular 10/20/40 EndFedz antenna, now available for purchase. The EF-QUAD covers 10, 15, 20, and 40 meters and is rated for an amazing 200 watts!
The EF-QUAD may be used as a monobander on any band between 40 meters and 10 meters. This is can be accomplished by removing the factory radiator and installing the appropriate 1/2 wavelength wire. Calculate the approximate length from L= 468/F(MHz). As an example a 25’ 10” wire will allow operation on 17 meters as a monobander. Initially, cut the wire a bit long and trim or wrap back along itself for best V.S.W.R.
WB4DBO on the EF-QUAD: “It is a fine antenna and will certainly fill the need for many of us who live in restrictive communities and want a single wire antenna that is simple, easy and effective! Again, congratulations on a great job.”