SE-OCF4010: 40 to 10 meter OCF Style Antenna (Windom)
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A 66 ft multiband Off-Center-Fed (OCF) style dipole antenna that covers the 40 thru 10 Meters Amateur Radio bands, most
without an antenna tuner. Typically no tuner is required for 40, 20, lower 10, bands. A tuner is required
for full 80 meter operation. The 17, 15 and 12 Meter Amateur Bands can be used with a wideband tuner at 100 Watts PEP.
The transformer is designed with a high power dual core 4:1 balun. This design provides a direct DC ground for effective
static dissipation. The balun housing is made with American products (except for the UHF connector) consisting of a NEMA-6
marine grade weatherproof PVC housing, plus all stainless steel mounting hardware for years of trouble free service.
OCF antennas that require 20 feet of an isolation line with a 1:1 isolation transformer, the SE-OCF4010 uses a Current Balun
that provides RF choking by design. This means you can mount the Balun box (transformer) and also the transmission line directly
to, or adjacent to metal objects, like a tower leg or metal siding with no ill effects to antenna performance.
SE-OCF4010 OCF Antenna Assembly.
Weatherproof NEMA-6 PVC Housing
with stainless steel hardware.
Handwound High Power Dual Core 4:1 Current Balun
SE-OCF4010 Off-Center-Fed (OCF) Antenna Features
66 feet overall
7 to 29.7 Mc. (40 to 10 Meters)
Dual Core 4:1 Current Balun, Direct DC Ground
Legal Limit (Designed
for 3 KW PEP)
4" x 4" x 2" NEMA-6 Weatherproof PVC
100% Stainless Steel
Silver Plated UHF (SO-239) w/Teflon Insulation
SE-OCF4010 Off-Center-Fed, 66 ft Dipole antenna
SE-OCF806 4:1 Current Balun
40 Meters to 10 Meters
3.0 KW PEP, 500 Watts Continuous (AM, FM, CW, RTTY)
Direct DC Ground
66 feet overall (20.1 Meters)
Core 4:1 Current Balun
SO-239, Silver Plated w/Teflon Insulation (Type-N on request)
4" x 4" x 2" PVC, NEMA-6 weatherproof,
with Stainless steel hardware
Flat-Top, Sloper, Inverted-V
SE-OCF806 Inverted-V installation.
Illustration showing the SE-OCF4010 used in an Inverted-V installation.
Typical VSWR plot for the SE-OCF4010 from 1.8 to 62 Mc.
Measured at 10 feet AGL with 50 feet RG-8X cable
© 2010 - 2018 - SAL Electronics, LLC, Algonquin, IL 60102
$143.00 SE-OCF4010, 3 KW, 40 to 10 Meter OCFD
(Price includes shipping to CONUS)