![]() Naturally, the transmission takes place further than in the yellow drawn area. The signal goes into the water or the sky. This is only to clarify the function so chosen! © Werner Ober GmbH & Co KG Stock The transmission at a long antenna is elyptical, therefore the heeling has a negative effect here. Of course, the emission occurs further than the area drawn in yellow. The emission for a short antenna is circular, so heeling does not matter here. Therefore, even with long antennas it is important that they are mounted vertically and not tilted backwards, if maximum range is desired. ![]() Shorter antennas are often used on sailing yachts, because this allows the radiation to be targeted parallel to the horizon even when the antenna is tilted. The longer the antenna, the better the transmission performance when the antenna is vertical. The antennas are available in different lengths. Therefore, it is necessary to check the cable length of the antenna cable before installation in order to choose a suitable cable. Often a RG58U cable is used, which works well up to a cable length of 6m but brings a strong loss of transmission power at greater lengths. © RaymarineĪ VHF radio needs a good antenna and an equally suitable antenna cable. Ray73 from Raymarine with integrated VHF, AIS receiver and megaphone functions. In order for the VHF radio on the ship to work well and provide the maximum range, some points are very important and must be taken into account. ![]() ![]() Especially in maritime emergencies or when registering in marinas, the radio is clearly superior because automatically all ships in the vicinity can listen in and possibly give quick assistance. VHF radio (marine radio) has been one of the most important means of communication on yachts for many years and will not be replaced by cell phones in the foreseeable future. ![]()
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