VHF Alarm
- Thread starter Jfrano
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BB marine
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Your VHS gets its latitude/ longitude from the GPS. When the radio is not receiving the input it sounds an alarm. You can press ignore and it will turn off for a limited time and then reset and sound again.
knotflying
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Jfrano":r0mw5ptk said:
If you are getting an alarm, something is wrong. Check on the chartplotter and see what items are being recognized on the system. Your radio should show up. If it does not they may not be communicating and that is why you are getting the alarm. I am assuming your chartplotter is getting Lat and Long information so that will rule out a GPS antenna issue.
chronicity
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I replaced the radio with the next higher model, which has its own GPS. Otherwise, the cbartplotter has to be on whenever the radio is on.
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The manual says that it's supposed to go into ignore mode after three minutes, but mine doesn't do that...as my dock neighbor was unhappy to point out to me.
Jfrano
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Ha ha .
I have DC power on while in my slip for fridge. Seems like a waste to have to have to keep my VHF on and the chart plotter to keep the alarm quiet while I’m away from the boat for days. I placed the Garmin in Sleep Mode. See if that works.
I have DC power on while in my slip for fridge. Seems like a waste to have to have to keep my VHF on and the chart plotter to keep the alarm quiet while I’m away from the boat for days. I placed the Garmin in Sleep Mode. See if that works.
BB marine
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Brad you are correct. Radio on, chart plotter off, alarm because no inputs for coordinates. If radio is off no horn. If you turn the radio on to transmit or receive it will not alarm for roughly 5 minutes. It is alarming because the emergency distress needs coordinates to function.Easy solution ,shut the radio off when your not cruising.
Jfrano
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Dah... time for new glasses . PWR push, problem solved
Thanks much for helping out newbie. A year or two from now when this is all stored knowledge I’ll be sure to have patience.
So two problems solved tonight++ auto bilge . Making progress !
Thanks much for helping out newbie. A year or two from now when this is all stored knowledge I’ll be sure to have patience.
So two problems solved tonight++ auto bilge . Making progress !
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If you have the garmin vhf, be prepared for some surprises if you loose gps signal either by blockage or interference.
I used to park under a metal covered roof that blocked gps signals when I found out that the vhf radio was showing erroneous gps coordinates. I went thru several experiments and analyzed the nmea2k bus communications.
Turned out the garmin 7612 in fact sent out bad coordinates like lattitude 922 degree north and 922 degree west, which as interpreted by the vhf and displayed as such, while the map display showed the proper last real coordinates on the map before I entered my slip.
I had lengthy email conversations with garmin about this “incorrect” behavior of both devices. All I tried to relay to them that the devices should be transmitting the last good known position instead of bad coordinates. If I had activated a distress call the bad coordinates would have been transmitted and rescue would not be able to use my last good position. Of course I would not call distress while in my covered slip, but I argued that if I was underway and the gps antenna were to be damaged or interfered with, I would have the same result and would not be able to rely on the accuracy of a distress call with the garmin vhf. However garmin did not see it that way and the “bug, as I call it” was still in the system. I even went to a west marine store and used one of their units to demonstrate and verify that this bug existed not only in my unit and in more than one release.
So be aware that the garmin distress system my not be reliable in certain situations
I used to park under a metal covered roof that blocked gps signals when I found out that the vhf radio was showing erroneous gps coordinates. I went thru several experiments and analyzed the nmea2k bus communications.
Turned out the garmin 7612 in fact sent out bad coordinates like lattitude 922 degree north and 922 degree west, which as interpreted by the vhf and displayed as such, while the map display showed the proper last real coordinates on the map before I entered my slip.
I had lengthy email conversations with garmin about this “incorrect” behavior of both devices. All I tried to relay to them that the devices should be transmitting the last good known position instead of bad coordinates. If I had activated a distress call the bad coordinates would have been transmitted and rescue would not be able to use my last good position. Of course I would not call distress while in my covered slip, but I argued that if I was underway and the gps antenna were to be damaged or interfered with, I would have the same result and would not be able to rely on the accuracy of a distress call with the garmin vhf. However garmin did not see it that way and the “bug, as I call it” was still in the system. I even went to a west marine store and used one of their units to demonstrate and verify that this bug existed not only in my unit and in more than one release.
So be aware that the garmin distress system my not be reliable in certain situations
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Not sure which VHF radio you have, but mine has a setting to choose whether or not you want the radio to turn itself on automatically when it gets a 12 volt power input.
If you say YES, it will turn on every time you turn on the House battery bank, and it may annoy you with alarms if you are just puttering about on your boat in the slip. You can always just turn it off, as previously mentioned.
If you say NO, you could forget to turn it on when you leave the slip to go boating; an important safety concern.
Your choice.
If you say YES, it will turn on every time you turn on the House battery bank, and it may annoy you with alarms if you are just puttering about on your boat in the slip. You can always just turn it off, as previously mentioned.
If you say NO, you could forget to turn it on when you leave the slip to go boating; an important safety concern.
Your choice.