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Vibroplex Par
EF-10/20/40 MkII

QRP End-Fed Dipole

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EF-10/20/40 MkII

The Vibroplex Par EF-10/20/40 MkII is a triband antenna totaling 39 feet in length and allows QRP operation on 10, 20, and 40 Meters with no switching, ground or tuner required. As with other EndFedz, it may be deployed as a horizontal, vertical or sloper. Maximum continuous power is 25 watts.

The factory supplied radiator may be removed and replaced with a half wavelength wire for any band from 40 Meters up to 10 Meters. The supplied radiator is made of lightweight #18 stranded copper clad and has a 200 pound breaking strength. The black polyethylene jacket is UV stable, slippery and much more durable than the more commonly found vinyl jacket. A redesigned end insulator securely holds the wire yet allows for easy length adjustments without tools.

Polarity: Depends on mounting configuration
Design Z: 50 Ohms
V.S.W.R. Bandwidth 20M:  500 kHz 1.5:1
V.S.W.R. Bandwidth 40M:  140 kHz 2.0:1
V.S.W.R. Bandwidth 10M:  900 kHz 1.5:1
Power Handling: 25W CW/SSB
Weight: 10 oz.
Length: 41 feet
Hardware: Stainless Steel
Connector: Silver/Teflon SO-239
Radiator #18 black poly-coated copper clad

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