VHF picks up weather on 16 - SailNet Community
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post #1 of 9 Old 06-24-2016 Thread Starter
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VHF picks up weather on 16

My VHF is suddenly picking up weather on channel 16 and other non WX channels. It is scrambled in with the regular transmission on those channels. Any ideas?
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post #2 of 9 Old 06-24-2016
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Re: VHF picks up weather on 16

Your VHF is busted.
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post #3 of 9 Old 06-24-2016
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Re: VHF picks up weather on 16

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Originally Posted by aloof View Post
Your VHF is busted.
Or it has an electronic brain virus, like when humans can taste colors.
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post #4 of 9 Old 06-25-2016
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Re: VHF picks up weather on 16

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Originally Posted by hillenme View Post
My VHF is suddenly picking up weather on channel 16 and other non WX channels. It is scrambled in with the regular transmission on those channels. Any ideas?
There are lots of reasons this could happen. Some are internal in which case fixing is too expensive to be worth while. Some are external--usually mixing of signals--that are localized. Go sailing. If it happens 10 miles away it is your radio. If it doesn't happen when you move a significant distance it is geography.
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post #5 of 9 Old 06-26-2016
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Re: VHF picks up weather on 16

Our B&G V50 started randomly doing that a couple of years ago. A firmware update took care of that bug...

If you have one of those similar VHF models from Navico/Simrad/Lawrence, that may be all that is necessary...

In case this is helpful.

Cheers!

Bill


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post #6 of 9 Old 06-26-2016
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Re: VHF picks up weather on 16

Depending on the vintage, especially if it's an older VHF with push button band selection, you are likely experiencing the buildup of salt air crystals on the PC board that houses all those push button switches.

If this is the problem, the solution is fairly simple, but it does involve the disassembly of the radio and access to the PC board, which then can be lightly rinsed with fresh water, then dried with a hair dryer and reinstalled. The switches themselves are not hermetically sealed, which means they must be thoroughly dried before reinstalling the PC board. This process will take several hours at best, therefore, if I were in your shoes, I would replace the VHF with one of the newer ones with AIS. Yes, it's a bit costly, but I'm not leaving a dime to the kids anyway, so cost is not a problem when it comes to my personal safety while cruising.

Good luck,

Gary
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post #7 of 9 Old 06-27-2016 Thread Starter
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Re: VHF picks up weather on 16

Thanks for the posts! Sounds like replacing is probably my best option. It's not a very old radio, but race safety regulations now require GPS DSC capabilities (currently a NMEA 183 connection to the chart plotter, which means both plotter and radio must be on) and I'm sure it's only a matter time until they add AIS to that requirement, so might as well do it now...
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post #8 of 9 Old 06-27-2016
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Re: VHF picks up weather on 16

Wait!

Do not replace it yet untill you have done the most obvious fault in anything electrical: Connections!

I dont know much about radios specifically, but i would redo the electrical and antenna connections because couldnt a bad one cause the problem?

If not, a new vhf is quite cheap.

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post #9 of 9 Old 06-30-2016
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Re: VHF picks up weather on 16

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Originally Posted by hillenme View Post
My VHF is suddenly picking up weather on channel 16 and other non WX channels. It is scrambled in with the regular transmission on those channels. Any ideas?
Might be helpful or might be completely off base here... Our work radios, and my marine VHF as well, have "scan" modes where it will monitor more than 1 channel at a time. Could it be set to WX scan so it's finding the WX forecast and sounding it off even though your primary transmit selected channel is 16?

Again, it's a total shot in the dark, but I know my work radio I always scan 15 (emergency on our restricted band) and talk on 44, so even while the radio display is showing "on 44" I hear 15 sqawk through if someone is transmitting on it.

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