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Marine Radio Question

Old 05-30-2016, 05:43 AM
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Not able to receive transmission . they hear me I can't hear response. Am I doing something wrong with settings or is there a problem with radio connection.
All help appreciated......
Old 05-30-2016, 05:50 AM
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Probably good to know what kind/model of radio & antenna (and how mounted), and how far you are apart from buddy.

First blush, tho, is volume & squelch set right?
Old 05-30-2016, 05:59 AM
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Icom with Shakespeare antenna Other boat was just 100 ft in front of me. He could hear me ,but I couldnt hear his response
Old 05-30-2016, 06:04 AM
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Is he garbled, or is there just nothing at all?

When you turn up volume and down on squelch, do you get the static/noise?
Old 05-30-2016, 06:08 AM
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No response at all

When I turn up volume and down on squelch I get noise
Old 05-30-2016, 06:11 AM
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I had 2 icom 504s on a CC, antennas were only 4-5' apart and I had same issue. I could transmit but not rec. Tech at Icom told me I fried the radios from antennas being too close on freq's that were too similar. Icom fixed all for just shipping cost, but learned dual radios are good w one as backup or different freq. Unless on a big sport fish w antennas 10' plus feet apart checked freq in back of manual.
Old 05-30-2016, 06:13 AM
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Ummmm, are you sure HIS radio is working (ie, transmitting)?
Old 05-30-2016, 06:18 AM
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Is it possible that I need to adjust the squelch and volume
Old 05-30-2016, 06:26 AM
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I have a similar issue with mine! I have one of the short shakespear whip antennas connected to a radio. I cannot even get the coast guard back which is maybe 500M away. I have turned the squelch all the way down and cannot hear them through the noise either. I know that the radio isn't completely fried since I can still receive weather info. Could this be a power issue?
Old 05-30-2016, 06:52 AM
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Originally Posted by MyPolar View Post
Icom with Shakespeare antenna Other boat was just 100 ft in front of me. He could hear me ,but I couldnt hear his response
Checking radio operation with another station only 100-feet away is useless.

That the other station hears your transmission proves nothing. He could hear your transmission even if there was a major failure in your transmitter or antenna. At that distance reception of your transmitted signal proves nothing.

That you cannot hear the other station proves nothing. If the other station is transmitting at 25-watts at a range of 100-feet, there is a good chance your receiver is completely overloaded by his signal. That you cannot hear his signal proves nothing except perhaps your receiver is poorly made and can't handle strong signals.

To properly test your receiver, check how well you can received distant NOAA weather radio broadcast transmissions. You should be able to receive a NOAA weather radio broadcast from a station at a distance of 50 to 100-miles if your antenna and radio are working properly.

To properly check your transmitter, attempt communication with another station at a distance of 15-miles. Communication between two boats with properly working radios is easily done at this range over a clear path.

When checking with another station, be certain the other station has a radio and antenna that is known to be working properly. Checking with a random second station really proves nothing, unless you are certain that other station has a good antenna and working radio.
Old 05-30-2016, 06:58 AM
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Originally Posted by cbutters View Post
II cannot even get the coast guard back which is maybe 500M away.
A range of 500-miles is far beyond normal VHF communication.

The Coast Guard may not return calls that are requests for radio checks.
Old 05-30-2016, 07:04 AM
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Originally Posted by jhebert View Post
A range of 500-miles is far beyond normal VHF communication.

The Coast Guard may not return calls that are requests for radio checks.
500 Meters* sorry for the confusion. I have tried with them at various distances out to several miles offshore. If they don't do radio checks... seems a little unsafe in some ways. I would like to know that my broadcasts are being received by the coasties before it is too late! In either case if that is their SOP (standard operating procedure) then that is their SOP. Good info though and thanks for the quick response!
Old 05-30-2016, 11:19 AM
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Flip over to the WX channel to check if you're receiving. If you hear the WX, problem may be your mic.
Old 05-30-2016, 01:51 PM
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Sea Tow provides an automated Radio Check service. Check your local for VHS channel.
Old 05-30-2016, 04:15 PM
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Originally Posted by cbutters View Post
I have tried [asking for a radio check] with [the Coast Guard] at various distances out to several miles offshore.
The USCG has a new radio system called RESCUE 21. The goal of the radio system is to provide coverage of all coastal areas, the Great Lakes, major inland rivers, including Alaska and Hawaii.

RESCUE 21 is designed to be able to communicate with a 1-Watt radio that is 20-miles offshore with an antenna height of 6-feet. The standard mode of operation of RESCUE 21 is to listen on the emergency calling frequency of 156.800-MHz (Channel 16).

If you make a call to the USCG on Channel 16 with a 1-Watt transmitter feeding an antenna that is 6-feet above ground and you are no more than 20-miles offshore, they will hear you. In many instances the working range of RESCUE 21 exceed 20-miles.

Since the Coast Guard generally does not participate in radio checks, I would not interpret a lack of response from them for a request for a radio check as evidence that they did not receive your transmission. It is likely the received it, evaluated it, and declined to reply because you were not broadcasting a distress alert or otherwise calling them with traffic.

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