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SE-OCF4010: 40 to 10 meter OCF Style Antenna (Windom)
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SAL Electronics, LLC 

The Antenna Store & More

1-815-669-6567
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.
 
Unlike some 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
Physical Length:
Frequency Range:
Balun Type:
Power Handling:
Transformer Housing:
Mounting Hardware:
RF Connector:
 
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
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Specifications:
Frequency:
Power Limit:
Grounding:
Antenna Length:
Matching:
Weight:
Connector:
Housing:
Configurations: 
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)
Dual Core 4:1 Current Balun
2.5 lbs.
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.
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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
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(Price includes shipping to CONUS)