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"Don White" wrote in message ... Harry Krause wrote: With my VHF tranmitting at 25 watts, I can easily reach out from one side of Chesapeake Bay to the other in most places. At the 1 watt setting, who knows? For the sake of discussions, let's say on a clear day from my VHF antenna, which is approximately 14' above the waterline, a 25 watt transmission reaches someone 12 miles away with a similar antenna height. Is there a way to figure how far a 1 watt setting will reach with the same equipment? Don't know how to calculate that...but in our VHF course we were advised to use the 1 watt when in a small harbour or at an anchorage. The idea was that 25 watt was overkill in this situation and would add to the clutter for people a fair distance away. That is actually the law. |
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