Join Date: Apr 2006
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Absolutely not. If your antenna is faulty, or the antenna connection is faulty, or there's a bad connection to the antenna--you'll just have the same problems with a new radio, and perhaps fry it as well.
See if you can test out your radio, in a radio shop or chandlery or with someone else's boat where you know the antenna is good. Or try the $44 emergency antenna, it's something you can always keep on the boat since antennas up the mast often fail anyhow.
Some radio shops might even check the radio out for you (to see if it is transmitting at all) for nothing if you come in when things are slow, it only takes a couple of minutes.