How long is a 60 meter dipole?
approximately 26.6 meters
Total length approximately 26.6 meters.
What is OCF antenna?
This type of antenna is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It’s a dipole fed off center with a 4:1 balun at the offset feed point. The antenna shown covers 80, 40, 20 and 10 meters.
How long is a 15 meter dipole?
The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun….Dipole Antenna Calculator.
| 20 Meters | ||
|---|---|---|
| 15 Meters | ||
| 21.000 | 22.29 | 11.14 |
| 21.100 | 22.18 | 11.09 |
| 21.200 | 22.08 | 11.04 |
Does G5RV need a balun?
Recommendation. A balun or choke should NOT be used on a G5RV wire dipole. The classic G5RV 102 ft. wire dipole consists of 51 ft.
What balun do I need for a dipole?
The best balun for the Windom or Off-Center Fed Dipole is a 4:1 ratio current balun.
What is the range of OCF dipole frequency?
Off-Center-Fed Dipole (OCF) Graphs Even Harmonics of (f0) 3.5 MHZ (80 M Band) Second harmonic (2xf0) = 40 M Band (7 MHz) Fourth harmonic (4xf0) = 20 M Band (14 MHz) Sixth harmonic (6xf0) = 15 M Band (21 MHz) Eighth harmonic (8xf0) = 10 M Band (28 MHz)
Will a 80-meter off-center-fed dipole work on 60-m?
In other words, the 80 M dipole is *physically* too short to fully accommodate two complete half-waves at 5.3 MHz. Nonetheless, the 80 M dipole – fed off-centre – will definitely be suitable for use on 60 M. How About a 160-MeterOff-Center-Fed Dipole? Will a 160-meter OCF dipole work as a multiband antenna?
Where to feed An OCF dipole antenna?
The picture on the right above shows an OCF Dipole with the feedpoint positioned at the same feedpint of the classical WINDOM antenna, fed with 50 Ohm coax through a 4:1 or 6:1 balun at a point 1/3 of the distance from one end. Note: It is not imperative to feed the OCF antenna at the point shown.
Why do OCF dipole antenna arrangements outperform obtrusive antenna arrangements?
However, any OCF dipole easily outperforms afore- mentioned obtrusive antenna arrangements. 1,2 Here is why: Placing the feed point away from the center, increases the resistive part of the feed impedance and source load more than the reactive (imaginary) part of the resonant antenna, which is nearly resonant.