Hailer Squeal

D

Doc

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I bought a new hailer speaker that is rated at 4 ohms like the Raymarine 230 VHF manual calls for. The one I took off was 8 ohms but I don't know if it ever worked since I just bought this boat.

When I press the push to talk button (to hail) I get a loud squeal like in Jurassic Park when the guy stepped on the dinosaur's cajoles. The fog signals and siren work just fine as does the listen mode.

The neighbors are complaining when I test.
 
Ouch! Sounds like feedback. Your hailer probably has a "listen" function on the horn. Turn down the listen volume on your radio and you should be fine.
Jim
 
You need a hailer on a 35 footer???

It does sound like feedback, try adjusting the volume. How far is the mike from the hailer?
 
I agree it sounds like feed back. The speaker is about 10' in front of the mike and has been since 2002 when the boat was new. It is mounted on the front of the bridge combing next to the horn and the mike is next to the helm in a sportfish bridge configuration (seating in front of the helm).

I have turned the volume up and down to no avail. Same with squelch.

As far as the need for a hailer goes, it was already there and I am in the process of throwing money at things that don't work...big or small...makes no diff...toss a buck
 
Do you have the manual? It sounds like you need to turn down the paging volume which may not be done from the dials that you are trying. You may have to key the mic and then addjust the channels what I'm saying is it may not be obvious.
 
The Hailer operation enables the unit to use a Hailer Horn as a loudspeaker. To start the Hailer operation, press the FUNC key followed by the */HAIL key. During Hailer mode, LdH appears on the 7-segment display.
Press and hold PTT to place the unit in Hailer mode. The message HAILING appears in the dot matrix display. Anything spoken into the handset is amplified and broadcast from the Hailer Horn (but not transmitted over the radio). To adjust the Hailer Horn broadcast volume, use the VOL UP/ DOWN keys while pressing and holding PTT. Each handset retains its own volume setting for the next time the unit is powered on.
Release PTT to switch to Listen mode. LISTEN appears in the dot matrix display and the Hailer Horn then acts as a directional microphone. Sounds picked up by the Hailer Horn can be heard on the handset speaker when off the cradle. Press the VOL UP/DOWN keys to adjust the handset speaker volume. Each handset has its own volume setting. When the handset is on the cradle, sounds picked up by the Hailer Horn can be heard on the External Speaker. Adjust the External Speaker volume by rotating the knob on the speaker itself.
 
Pascal what's wrong with a hailer in a 35' footer? I had one on my 22' MACO's hardtop.
Most modern VHF marine radios have the feature if you connect or install the loudspeaker/ horn.
This problem is an audio feedback loop resulting from too much audio gain and too little distance between the microphone and the hailer speaker aka a "horn".
The above posted procedure should correct the paging "talk" problem.
To test a hailer and not drive your slip neighbors crazy put a towel over the speaker. However this might stop the feedback.
Then again the towel test might also prove there is to much audio gain because I wouldn't be surprised if the feedback was reduced or eliminated.
The boat could be taken away from the dock and tested out in a less dense environment.
Bill
 
Bill, nothing wrong with a hailer on a boat that size i just don't see the need. Open boat, just use your personal hailer aka vocal cords instead of reaching for the mike, set the VHF in hailing mode, and then reset it

I find opening my mouth to be a lot faster, if not high tech enough for you :)
 
A person's vocal cords could get pretty worn out, it depends on the situation and the vessel. I'd think people piloting a small boat from the lower helm could really use a hailer to their advantage.
I'm not sure there's anything high tech about a hailer.....?
Bill
 
JRPAR,

You are the man. I owe you a beer. Worked.

Doc
 
quote:
Originally posted by PascalG

Bill, nothing wrong with a hailer on a boat that size i just don't see the need. Open boat, just use your personal hailer aka vocal cords instead of reaching for the mike, set the VHF in hailing mode, and then reset it

I find opening my mouth to be a lot faster, if not high tech enough for you :)

Click to expand...


Don't forget many/most hailers also act as automatic fog signals.

Which I guess your mouth could too. But it would be a bit of a strain on the vocal cord in the long haul. :-)
 
Oh i agree about using the hail for fog signals, but i find yailing actually easier than hailing
 
I wouldn't purchase a VHF without an auto foghorn function. Here in the NE it is invaluable. Your voice is clearer and travels farther Using a hailer than shouting to call to someone on shore or to another boat and I believe better etiquette.
 
A lot easier to scream at the fishing douche bag in the channel with a hailer. It puts em on the spot

Rob
 
As long as we are on a roll here, both upper and lower handsets need new curly cords. Raymarine wants an outrageous amount to replace them.

Any out of the box ideas?

BTW, after 3 days Raymarine has not responded to my voice message or my post on their tech forum about the squeal problem.
 
The hailer on my previous boat also had a listen function which picked up replies from those near the Bow.
That is also a useful function when approaching a dock or voice a near by boat.
 
The Raymarine unit has a listen function. My Garmin VHF200's also have a listen function it works well. The Garmin VHF200 has front and rear, 2 speakers are needed.
Bill
 
The fog horn function is great but only if you use it as a timer and then sound your horn when it goes off. Other wise it won't be heard from far
 
My boat horn is a basic Ongaro. The pulse from my Raymarine 430 VHF/Loud Hailer with a 25 watt hailing speaker can be heard at a much greater distance than the horn. Of course air horns would be better.
 
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