Search found 2 matches

by richv
Mon Aug 15, 2016 8:03 am
Forum: SMALL BOAT ELECTRICAL
Topic: Black Stain Around Battery and Sulfur Smell
Replies: 4
Views: 2741

Re: Black Stain Around Battery and Sulfur Smell

This is usually a result of overcharging. Buy yourself a decent digital voltmeter (DVM) if you don't already own one. Start up the engine and measure the charging voltage. Let the engine run until the battery voltage levels out. If it exceeds 14.0 volts by much, the battery is being overcharged. The...
by richv
Mon Aug 15, 2016 7:40 am
Forum: SMALL BOAT ELECTRICAL
Topic: VHF Marine Band Antennas
Replies: 5
Views: 3791

Re: VHF Marine Band Antennas

For a ship station in the VHF Marine Band in the USA, the radio transmitting frequencies range from 156.025-MHz (Channel 60) to 157.425-MHz (Channel 88)... Your analysis of the effects of VSWR on receiving, while technically incorrect is, practically, pretty accurate. A VSWR of 2:1 is going to resu...