S9 OCF Windom Dipole for 6-40 or 6-80 meters


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OCF Dipole 7-Band: 75/80, 40, 20, 17, 12, 10, & 6 meters. 135 feet (45+90) Windom antenna.
OCF Dipole 4-Band: 40, 20, 17, 12, 10, & 6 meters. 68 feet (23'+45') Windom antenna.

Both options support being a SWL (Shortwave Listening) Antenna: 500 kHz to 60 MHz.

Do not be fooled by high power ratings on Baluns from "builders" that use third party manufactured Baluns, which are almost always a Voltage type design. Instead always purchase and trust an OCF Dipole that is made in-house using a Current Balun transformer design, but never a Voltage Balun "transformer design", and do not purchase an OCF dipole that 'excludes' whether the Balun is either a Current or Voltage Balun.

This antenna uses the only Balun that you should consider, which is a 4:1 Guanella (dual-core) Current Balun.

The S9 OCF dipole, with a Current Balun, eliminates losses found on other systems that are hidden by an antenna tuner*. Quick deployment enables you to enjoy zero-wait band switching for spread-spectrum (frequency hopping), digital, CW, SSB, or AM modes.

The S9 OCF diple is also more convenient to feed than a regular center fed dipole, due to the fact that one wire leg of the antenna is shorter than the other. This enables you to place your feed-point closer to your equipment and lower losses and costs because less coax is required.

Construction begins with two properly mixed ferrite cores, which are each housed inside our proprietary U.S. manufactured insulating jackets. These are then wound with helically spun, solid core, and insulated wires. The finished Current Balun is then placed inside a IP68 enclosure with a SO-239 (UHF Female) connector. The antenna wires used for this aerial are low noise 13 gauge, high strength, low-gloss UV Resistant Polyethylene with a break strength of 400 pounds. The end connections at two black low-gloss UV Resistant Nylon insulators and center support are then secured with crimped aluminum ferrules. Also included with the S9 OCF Dipole are two 25 foot lengths of 1/8" Black Dacron UV Resistant Rope with a break-away strength of 316 pounds to help ensure your wiring does not break.

Height above ground may impact length required, so additional wiring, which hangs as a tail off the end of each insulator is included, can be trimmed if necessary.

Can be hung in a Flat or Inverted V configuration away from power lines.

Weight: 4.00 LBS
Width: 12.00 (in)
Height: 11.00 (in)
Depth: 4.00 (in)

* Tuner free operation is dependent on the antenna being installed as instructed. Please note that you should always check your SWR before installing your equipment. This includes any antenna tuner that you might optionally implement to use the S9 OCF Dipole on additional bands.
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