In reply to the thread starter.
There is a lot of radio traffic on 121.5 for all the wrong reasons. People testing beacons not at the top of the hour, people calling there handing agents, people calling what they think is the next en route controller.
Alot of the time we don't know where the transmittions come from, and a quick call "your transmiiting on guard" usually stops them from repeating the error.
we want them to stop there transmittion as it is very, very distracting - it's like having two people speak to you at exactly the same time, your only going to pick up one conversation.
the other day there was someone blabbing on in french on the frequency over france, 90 % of the people monitoring 121.5 would have turned the volume down so as not to be distracted. Someone told the person that they were " on guard " and a french controller came back and said that he was dealing with an emergency.
I do accept your point about being told of by the guard police, but most guys should and do recognise an emergency on the frequency if the correct terminoligy is used, and the english language, there may be situations where it is preferable to use another language to aid the person in distress.
We as pilots do just need to take a split second more to check the box and frequency before transmitting.
And as for the guys and girls who muck about on the frequency transmitting songs, your in the wrong job mate - the other person in the cockpit should have a word with them and get it stopped.