What is that sound you sometimes hear when paragliding?

The gossips at the take off have a lot of imagination about this sound. No, it’s not a glider detector that beeps when you fly too close to each other. Nor is it an alarm that warns the pilot to take a break after flying too long! Nor will it beep to warn of lack of oxygen if you climb too high!

This is the sound of a variometer, the on-board instrument of many pilots.

Similar to aviation, the pilot equips himself in order to be more efficient and to have reference points in flight. The variometer can be equipped with a screen that will show the rate of climb and descent of the glider. The rate of an instrument generally varies from -5 m/s to +10 m/s.

With or without a screen, the variometer makes noise to indicate this information without the pilot having to look at it.

Its main use is to help us optimise the search for thermals and validate our sensations, it “beeps” at us if it goes up and we can thus “centre” the thermal (read the article “How does a paraglider stay in the air?“).

In addition to indicating the rate of climb, most instruments also show the altitude at which we are flying (alti-variometer). There is also a gps (alti-vario-gps), G-meter, and many other options (airspace display, world topography, etc…) for the more experienced and competition-oriented pilot.

syride sys evolution

Stodeus Vario Solaire

Now you know what that noise is that you can hear during your prestige flight or at a take-off.

However, if this bothers you during the flight and you wish to be as quiet as possible, don’t hesitate to ask the pilot to turn the sound down or off!

” See you soon in the air!

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[FIX] iRobot Roomba Makes Beeping Sound On Charger

Robot vacuum cleaners have taken off in recent years, but many of them are not good at telling us when something is wrong.

If you have a Roomba robot vacuum that beeps when on the charger or flashing its lights, then we have answers for you that will fix your Roomba!

Roomba Plays Beeps

Roomba’s will play songs, speak the problem, beep and flash it’s LED lights at you to communicate and tell you what is wrong.

Your Roomba playing 4 notes, or it may sound like 4 beeps, is a sign the battery is low, and it needs to be charged.

Most modern Roomba’s will navigate to the charging station and charge themselves, but if they got lost or confused they may never find the home base and thus beep at you.

Roomba Beeps While On The Charger

If your Roomba is beeping or playing a tune constantly while on the charger, then the battery or the charging base station could be bad.

If the Roomba can’t make a good connection with the charging base, it may fall in and out of the charging state and play the charging sound constantly. The contacts of the Roomba are under them, so they get dirty over time. Even if they look clean, a slight film can form and make charging hard.

Roomba Battery Is Bad

If you’ve cleaned the robot vacuum’s base and connections, and they all seem fine, then it could be a bad battery.

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Ideally, you should be replacing your robot vacuum’s battery every 2 years, and the beeping you’re hearing is the robot saying the battery is bad.

If you’ve recently replaced the battery and get beeps, it could be that you installed the wrong battery. Cheap knock off batteries don’t always supply the correct voltage the robot vacuum is looking for, and they will make a fuss.

If you go with non-OEM batteries, it’s best to get the ones that are highly reviewed. If in doubt, always go with the batteries made by the manufacturer, especially if you want to maintain the warranty.

Charging Base Is Bad

If the connections on the Roomba and base station are good, and the battery is new, but the Roomba still beeps, then it could be the charging base.

The charging base of your Roomba can wear out, though it much more rare.

If the charging base LED light does not come on, that can be a sign it’s bad. Another way to tell is the charging base emits an IR light that the camera on your phone can pick up, so take the Roomba off the base and see if you can see the flashing invisible light shows up on your phone.

It’s also possible the outlet you plug in your Roomba is bad, or the breaker is bad. This will require a professional to fix. Move your Roomba to another outlet to see if it starts working again.

Charging Base Makes A Whining Noise?

If your Roomba charging base is making a high pitch whining noise, then the inner transformer coils have gone bad and the charging base needs to be replaced.

The charging base uses transformers to take the high voltage of your home and step it down to something the Roomba can use. These coils can go bad over time due to the stress of stepping down that much power, and will make a whining noise when they have gone bad.

Moving the charging base to other outlets and slapping the base will not always fix it, it may quieten it for a few minutes, but overall, you need to get a new charging base.

Roomba Charging Error 1

If your Roomba speaks “Charging Error 1”, then it is telling you it can’t detect the battery.

If the battery is not a genuine iRobot battery or the battery is bad it can cause the Roomba to speak this error.

It is also possible the battery contacts are corroded or need to be cleaned.

Robot vacuums can develop a slight film on contacts because of the dirty environment they work in, and this film can make contact sporadic or keep the robot vacuum from working.

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Reset Your Roomba

If nothing else worked, the last thing you can do is reset your Roomba.

There could be a software issue and a reset is needed to fix it, then checking for updates is the best option ahead.

How to reset Roomba:

  1. Press any button (clean button) to wake the Roomba if it’s not already on, it’s on when the LEDs are on.
  2. Press and hold the spot and dock button for 10 seconds, or until the LED light turns off or flashes.
  3. If your Roomba has an app, go into the settings and check for any updates.

Video how to:

Some Roombas require you to hold the clean button for 10 seconds instead.

How To Mute Prepaid Meter Beeping Sound

How To Mute Prepaid Meter Beeping Sound

The beep sound from prepaid meters when your credit unit is low can frustrate and be annoying. Do you know you can turn this off? Yes, you read that right. This guide will teach you how to mute the prepaid meter beeping sounds.

How to turn off the beeping sound on a prepaid meter

The procedure for turning off the beep sound of prepaid meters varies. This is because the manufacturers program their devices differently. We will explain how you can turn off this beep sound in the meters below:


All you have to do is ensure that you pair the User Interface box with the meter. If not, this will not work. To turn off the beeping sound on Mojec prepaid meter, enter 045 on the UIU box, followed by the enter key. That’s it. This will turn off the alarm sound immediately.

To turn off the beeping alarm on the conlog prepaid meter, press the # key on the UIU (User interface Unit) Box. This will immediately stop the beeping alarm noise.

To stop the beeping alarm from Longi Meter, press the Enter button until the alarm stops.

Why does my Electric meter keep beeping?

Your Electric meter may beeping for several reasons, such as a low battery or when you are low on credit tokens. A beeping RED LED light usually accompanies the beep sound.

How do I turn off the Mojec Prepaid Meter Alarm?

You can turn off Mojec prepaid alarm by pressing 045 and the enter button. Then wait till you see SUCCESS.

Conclusion: How To Mute Prepaid Meter Beeping Sound

We believe you have learned how to mute the prepaid meter beeping sounds. You can employ these tips any time your prepaid meter credit is low, and there is a beeping sound. We hope you find this article useful.

Source https://flyeo.com/en/what-is-that-sound-you-sometimes-hear-when-paragliding/

Source https://themvacuums.com/fix-irobot-roomba-makes-beeping-sound-on-charger/

Source https://blog.easypower.ng/2022/09/06/how-to-mute-prepaid-meter-beeping-sound/

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