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I = P/E Current = power/voltage
Therefore 25 watts of power divided by 12 volts if that is the battery voltage, equals about 2 amps. You should try a 3 or 4 amp fuse..
Most of the problems associated to "whine" sound on radios can be eliminated by installing a noise filter(capacitor) in the feed line. This product is readily available at electronic supply stores and I not very expensive. It usually comes with installation instructions. Make sure it can handle the amperage. Hope this helps.
? I assume you are asking if you need an ariel antenna for this radio in order to receive and transmit? if that is the case then yes you do, Any radio requires a matched antenna in order to transmit, if you were to transmit without an antenna, most of the RF energy will transfer back into the radio and over heat "burn out" the output transistors. always make sure to have a proper antenna connected before transmitting on any radio.
Hello,
You want to be able to transmit to the Coast Station on this frequency I assume. The Coast Guard monitors channel 16 at all times. This would be the primary channel in the United States. Your radio is VHF Marine Radio and has a built in frequency range of 156.050 MHz to 163.275 MHz. There is no need for a modification. This is a duplex frequency. What that means is you will transmit on one frequency and receive on another, while on channel 20. You will not need to transmit on 161.600. Turn your radio to channel 20. When you transmit, you will transmit on 157.000. And when the Port responds to you your radio will automatically receive their signal on 161.600. So if you are trying to figure out how to communicate with the port authorities then for that frequency turn your radio to channel 20 and you will be able to communicate with them.
Hi, I friend of mine did the same thing.
I can't tell you where to get it repaired but I can tell you what I found.
After taking the cover off and removeing the screening can I found a
diode had popped it's cloggs. Split open.
It's just by where the power cables connect to the pcb.
It's a 1N4004, 16p from Maplins.
I replaced this and the unit now works fine.
Hope this helps.
Dave.
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