demonstrate what we are explaining here, let us look at a very simple formula. If you talk only on a certain channel then set it up for the frequency that you use most. 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. Many truckers use two co-phased Antennas mounted on their mirrors. Buying Format, delivery Options, free International Shipping, show only. Our antenna also transmits a strong signal if the antenna we are transmitting through is resonant on the frequency on which we are transmitting. So, we cut our piece of aluminum rod.593 and we have made an antenna that resonates.405 (or close to that). When we think of the term resistance we usually think of some type of force that acts (or impedes). Mount the Antennas on either side of your vehicle. Basic laws of electronics dictate that if these impedance's (antenna jack, coax and antenna impedance) do not match then maximum power is not transferred.
Many Freightliner, Peterbuilt, and Kenworth trucks have. (testing a 7el V-yagi @ 19SD348). 26SW037 has found another applicationfor when there is no propagation! Dedicated for 27 Mhz (11 meter / cb ) antenna systems.
You may purchase these stainless steel or fiberglass whips at any CB Radio store. Base CB Antennas may be vertical for omnidirectional coverage, or directional "beam" Antennas may be used to direct communications to a particular region. Another mobile antenna is the continuously-loaded half-wave antenna. There are all kinds of situations that could cause a mismatch beside what I gave as an example. One common mobile antenna is a quarter-wave vertical whip. These do not necessarily require a ground plane to present a near 50 Ohm load to the radio, and are often used on fiberglass vehicles such as snowmobiles or boats. The combination of the original wave traveling down the coax (towards the antenna or opposite during receive) and the reflecting wave is called a standing wave. A citizens band (CB) radio antenna is a device designed to do two things: It captures radio-frequency signals that are then converted to electrical signals by the receiver, and it takes electrical signals from the transmitter and converts them into radio-frequency signals. Manufactures, Builders, and Examples of High Performance CB Antennas include but are not limited to: Big Hair CB Antennas, iMAX 2000, antron. This has a special name, it as known as antenna resonance.
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Molded Antenna Beehive Roof and Flat Surface Mount, PL to PL Hookup V10-06045.
Some antenna devices (parabolic antenna, Horn Antenna) just adapt the free space to another type.
Base CB Antennas may be vertical for omnidirectional coverage, or directional "beam" Antennas.
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