Membuat Antena Sendiri HF ANTENNA
Is the marine stereo system up to the challenges of a marine environment and capable of holding as much as the humid circumstances. For our example let’s assume that the UHF wavelength the radio uses is about a foot and a half long and the same VHF radio is round 5 toes long. Observe that range is additive and is dependent upon the antenna height of the other station. The Coast Guard proclaims urgent marine info broadcasts and storm warnings on channel 9 in the First Coast Guard District only (waters off the coast of northern New Jersey, New York, and New England).
In the beginning, a 6 db achieve low-cost antenna will generally perform in addition to a 6 db gain expensive antenna. If you wish to put an antenna on high of your own home or enterprise, you can do it with MURS. It is a low energy, brief vary service within the VHF a hundred and fifty MHz Citizens Band radio spectrum. In 1991 returned to radio and worked at 1390AM KGER, 107.1 KMAX and likewise produced some nationally syndicated radio programs on various satellite tv for pc networks.
While you need to call somebody, you punch in their MMSI number into your radio together with the channel quantity you want to speak on. The radio then broadcasts the quantity digitally on Channel 70. Solely the radio of the person you are calling responds – it recognises its number, sounds an alarm and when the particular person you are calling presses a button accepting the call, both radios swap to the chosen speaking channel and you discuss as regular.
While within the waters of the United Kingdom, the use of any marine VHF radio must be below the management of an operator holding an acceptable license issued by the country through which the vessel is registered. The license is not transferable if a ship is sold or if the put in radio gear is moved from one boat to a different. If you’re a boater you possibly can move the VHF Marine frequencies to the corresponding channel numbers the place you would normally discover them on a Marine VHF radio.
One of the best ways to give your VHF radio increased range is to get the antenna higher. As of July 1, 2000, the Ninth Coast Guard District (Nice Lakes Area) mandated that US leisure boaters use channel 9 only as a hailing frequency and they are not to hail on channel sixteen. That is due to the increase in radio site visitors on channel 16. Emergencies, however, are nonetheless reported on channel sixteen.