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Re: VHF Radio - static on transmit not recieve
bird guano, etc. could be corrosive up there but I'd try to get a real person to listen to your transmission, to make sure the "static" is in your signal and not an artifact of the way SeaTow's recording is being made. Before you go nuts trying to chase down the gremlin, make sure it IS your gremlin, not theirs.
It can also be worth making, or picking up, an "emergency antenna" that plugs directly into the back of your VHF. As a troubleshooting tool, that will also tell you right away if a problem is in the cable and antenna, or in the radio.
Standard Horizon has outstanding customer support, it might be worth calling them and asking if they have any ideas on this. And if the radio is UNDER two years old? Maybe it had a 1-year warranty (some of them are 3) with a second year free warranty from your credit card company? It pays to check and if you've got some warranty, just send it in to SH for a tuneup and checkout if all else fails.