Question about Radio Communications

1 Answer

Why it has a hum? - Radio Communications

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,169 Answers

If is when the engine is running it would be an AC hum from the alternator. The installation of noise filter design for purpose in the positive side of the power lead will resolve this. These noise normally have a high value inductor and may also a small capacitor

why it has a hum? - 25629862-swpuo4ealn4em1sehhfbmu2p-1-0.png

Posted on Apr 05, 2015

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

MY 1998 FOR EXPLOYER ELT HAS A LOUD HUMMING NOISE THE FAST I GO THE LOUDER IT GETS CAN ANY ONE TELL WHAT A POSSIBLY CAN BE .MY HUSBAND SAYS THE SPINDLE????


Humming Noise Front End- Any Ideas? - Ford Explorer and Ranger ...

www.explorerforum.com > ... > Stock 1995 - 2001 Explorers

Dec 18, 2008 - 19 posts - ‎16 authors
Have a 98- Eddie 4.0 SOHC, 4WD with a 100,000 mi. When driving it has a humming noise, it almost sounds like a bad tire, or a ... I start to hear the humming noise at 20 mph, it is very loud at 40 to 50 mph ... 94 XLT-95 FX4. humming gets louder as speed increases
19 posts
May 27, 2010
How to: IAC valve cleaning thread (w/pics)
19 posts
Oct 29, 2007
humming from air intake
19 posts
Jun 6, 2002
Loud humming noise coming from the air filter
9 posts
Oct 6, 1999
More results from www.explorerforum.com

Jan 12, 2016 | Cars & Trucks

1 Answer

My coleman evcon furnace just hums when i turn it on it doesnt engage the blower or fan thing it a quiet hum... Ready to call for repair but i wondered if there was something i could try..would like h


The hum could just be the control transformer, but that's usually a very light and barely perceptible hum. If its a louder hum, and it stops after a few minutes, the hum could be the blower motor refusing to start for any number of reasons, then cycling on its internal winding thermostat.

I'd call a service tech.

Dec 04, 2014 | Coleman Heating & Cooling

1 Answer

Mixing board hum


AC hum comes from poor grounding of components.

Jun 21, 2017 | Music

1 Answer

Unplugged computer plugged back up loud humming


The humming could be coming from one of the fans or the disk drive. Sometimes if you just tap the case the humming will quit. If there is a CD in the cd drive sometimes it will hum.

Don't worry about the humming, if it starts clicking, that's when you worry.

May 03, 2012 | Acer Computers & Internet

1 Answer

Sunfire MK II Subwoofer hum. I have a Sunfire MK II subwoofer that hums when it is plugged in (it even hums when no signal is connected). I've tried multiple outlets on different circuits, but hum...


you have a ground loop issue you could purchase a ground loop isolator, jensen makes them for about 40 bucks.I have discovered that if you have cable tv, unplug the incoming cable in your cable box and see if hum disappears.

Nov 25, 2010 | Sunfire True Sub MK II Subwoofer

1 Answer

I have Insignia ns-p42q-10a tv, there is a loud hum when the volume is on when you mute the volume it goes away? Any suggestions?


check other inputs AVI, HDMI,,

do you here the hum on all inputs?

The hum maybe from a bad ground loop,, unplug all pluged in inputs, [dvd,games,radio,ect] <--check for hum.

If the hum is gone, plug inputs back in one at a time and test,,

When you find the source of the hum, go get a ground loop isolator to fix.

Mar 25, 2010 | Insignia NS-P42Q10A Plasma TV

1 Answer

NAD S300 Amplifer humming


You have either got a bad earth connection, or possibily there's a capacitor failed.
If you can't find a dodgy conection, I would replace the large Electrolytic Capacitors in the power section, they are used to take out 50hz hum in the mains electric, when they go you get that hum coming into your system.

Nov 15, 2009 | NAD S300 Amplifier

2 Answers

Amplifiers has a hum


The hum therefore is a generated before it reaches the volume control. Check that all the connects are good, a bad earth will cause a hum. If the hum is in both channels it will be something that is common to both. Electrolytic Capacitors are there to take out hum, so suspect them first!

Jun 06, 2009 | JVC Audio Players & Recorders

2 Answers

Hum in the audio - 32'' Proscan 1080i


does the hum occur when playing a dvd or only when watching tv ? if the hum occurs only when watching tv, i would like you to disconnect the cable line from either the wall or the back of the cable box and see if this hum disappears. if the hum disappears call your cable company. you have what is called a " 60 cycle ground loop ". hope this helps.

Jan 20, 2009 | Televison & Video

1 Answer

Background "hum" in R speaker


Yea try plugging it into another wall socket, if it's still humming could be a damaged transformer. or bad capacitor.

Jun 05, 2008 | RCA RS2531 CD Shelf System

Not finding what you are looking for?
Radio Communications Logo

Related Topics:

85 people viewed this question

Ask a Question

Usually answered in minutes!

Top Radio Communications Experts

eradiostore
eradiostore

Level 3 Expert

1654 Answers

Brad Brown

Level 3 Expert

15618 Answers

Mike Charette

Level 3 Expert

1795 Answers

Are you a Radio Communication Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...