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The most efficient mobile CB antenna is the 102″ whip. If you desire the best performance, the 102″ (quarter wave) whip is the only way to go. Most of us do not have room to use a 102″ whip on our vehicle.
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2.1. Antenna length based on the following formulars: 1/2 λ dipole (feet)= 468 / frequency in Mhz. 1/2 λ dipole (meters) = 142.65 / frequency in Mhz. Full wave loop (feet) = 1005 / frequency in Mhz. Full wave loop (meters) = 306.32 / frequency in Mhz. Cut wire slightly longer for connecting insulators and pruning. 22-Jun-2007 09:30 AM.
2 sty 2015 · Approximate Range by Type and Length. The figures in this section are provided with the understanding that antenna range is influenced by a number of factors (discussed above). It's impossible to guarantee the effective range of a CB antenna for a specific vehicle or application.
The antenna ensures a transformation between two forms of energy. In transmission, it converts an electrical energy supplied by the transceiver into radiating electromagnetic energy, and reciprocally into reception. The ideal antenna for 27MHz should have a theoretical wavelength of 11 meters.
2 dni temu · If you put 4 watts into a 102-inch whip antenna, it is the same as if you put 54 watts into a 7.5 antenna. If the SWR on channel 40 is greater than that on channel 1, your antenna is considered to be “LONG” and reduction of physical height and/or conductor length will correct this situation.
Choosing the Optimal CB Antenna Length Yes, taller/longer is better for range of distance when it comes to an antenna and the optimal antenna length is 1/4 wavelength. That translates to 102 inches (8.5 feet), too tall to be practical for most mobile applications.
A four-foot single fiberglass antenna's range should be about 4-7 miles. The two types of antennas with the shortest expected range are the shorter antennas and the no ground plane (NGP) antenna (at four-foot lengths, have about a 3-5 mile range - only about 70% of that of the ground plane antenna).
