How high is a 10 meter dipole?
The dipole is the world’s most popular antenna. Under optimum conditions the antenna should be raised 1/2 wavelength above ground with the broadsides in line with the direction most desirable for work.
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How high should a vertical dipole be off the ground?
For best results, dipoles should be at least 1/2 wavelength above ground level. For the lower bands, especially 160-40 meters, this can become impractical–place your dipole as high as your situation allows.
Is dipole better than vertical?
Height also matters—the higher the dipole, the better. Ideally, a dipole should be at a half wavelength above ground for best performance and making DX contacts. At 40 meters, that would be 33 feet. But many Hams report they can still get good performance at lower than half wavelength heights.
Can you use a CB antenna for 10 meter radio?
This means that you can still use a standard CB antenna- just be sure to get an antenna that has a power rating that will handle the power output of your 10 meter radio. Out of the box, you will not get Channel 19 with a 10 Meter Radio. CB Radios operate on the 11 Meter Band around 27 MHz with 40 channels.
How long is a 10m dipole antenna?
Dipole Antenna Calculator
| 20 Meters | ||
|---|---|---|
| 10 Meters | ||
| 28.000 | 16.71 | 8.36 |
| 28.500 | 16.42 | 8.21 |
| 29.000 | 16.14 | 8.07 |
How high should a vertical antenna be mounted?
A height of 120 feet or even higher will provide even more advantages for long-distance communications. To a distant receiving station, a transmitting antenna at 120 feet will provide the effect of approximately 8 to 10 times more transmitting power than the same antenna at 35 feet.
What frequency is the 10 Meter Band?
28.000 to 29.700 MHz
The 10-meter band is a portion of the shortwave radio spectrum internationally allocated to amateur radio and amateur satellite use on a primary basis. The band consists of frequencies stretching from 28.000 to 29.700 MHz.
How long is a 15m dipole?
Total length approximately 6.75 meters.
Does a vertical antenna need to be grounded?
Balanced antennas like dipoles do not need an RF ground for their correct operation as long as common-mode currents are kept off the feeder. However many vertical antennas and many end fed wires use their RF earth connection as an integral part of the antenna.
Why do vertical antennas need radials?
The radials are the second half of the antenna, just like there are two elements to the common dipole. Radials contribute to the radiation efficiency of the entire vertical antenna system. The worse your ground conductivity, the more important your radial system becomes.
Are HF verticals any good?
They are the antennas of choice on the low bands for working DX, as most hams can’t get horizontal antennas high enough to be as effective as a vertical on 80M. They can be surprisingly effective with a good radial or ground system, and disappointing over poor ground.
What is the physical length of the dipole?
Due to the tuning traps for each of the bands, the physical length of this dipole, compared to a full length dipole, is 99% when it is used at 10 meters, 94% for 15 meters, 83% for 20 meters and 65% for 40 meters.
What type of cable is used in a vertical dipole?
The vertical dipole is fed at the center by a 1:1 balun and is further isolated with a 14 turn coil of RG-8 coaxial cable wrapped around a 7 inch diameter fiberglass form.
How do you make a half wave vertical dipole antenna?
Two Hustler Model 6-BTV antennas were adapted to make up a half wave vertical dipole by mounting them butt- to-butt on a twelve-foot long 2 by 12 inch wooden mast attached to the deck railing at the rear of the house. The center feed point of this combination is only about 22 feet above the ground.
What is a dipole antenna?
The dipole antenna, developed by Heinrich Rudolph Hertz around 1886, is an antenna with a center-fed driven element for transmitting or receiving radio frequency energy. These antennas are the simplest practical antennas from a theoretical point of view (1) See References below.