High-Frequency Howling

Title 47 CFR Part 15 - Wikipedia, the free encyclopedia

You'll need to get the Federal Communications Commission involved.

Thank you

sclassroom.com/class/sound/u11l2a.cfm read this

Maybe the place is haunted and the ghosties become active at night....but seriously I think we would be talking in the 20-40khz range, possibly sonic welder, or ultrasonic parts cleaner, taking ultrasound readings, any number of things....but the volume would have to be unusually high....Maybe a bat detector would work...Have you asked your neighbor if he is using any of these thoughout the night?

http://www.enoisecontrol.com/default.asp

We're not on speaking terms, his home is about 100 yards away

Well if you're stuck, and it seems serious, and you can afford it, then these ultrasound frequency devices used for bat detection should, with proper software and computer, detect a signature that does not mimic anything in nature....A video recording of these episodes should provide proof, or compelling evidence that illegal activity is taking place....

http://batmanagement.com/Ordering/acoustic/hardware.html

All in one solution....

http://batmanagement.com/Ordering/acoustic/WildlifeAcoustics/WildlifeAcoustics.html

O My god this is the victim

It would have to be either a highly focused or high powered ultrasonic device to make it 100 yards plus through the walls of your house as well and still be loud enough to cause dogs pain.

High frequency sound does not travel long distances well or go through solid objects well either which to me means that either the sound is coming from something of yours inside your house or your neighbor is pumping some serious watts through a ultra sonic transducer device directed directly at you.

Is it illegal to generate a high frequency noise that is inaudiable to humans?

Devices designed to generate a high frequency audio tone for the pupose of training animals are readiably available.

As others has been mentioned for it to cause a problem to your dogs inside your house the source would have to be very powerfull and every dog and cat in the vacinity would be going of its nut.

Another posibility is that the source of the offending noise is from a piece of electronic equipment in your house - a lot of modern powersupplies opperate in the 20-40Khz range and it is possible that components in the power supply can vibrate and emit an audiable tone (at least for your dogs) rember the ear splitting noise some older Tv's would emit from time to time.

Or perhaps your neighbour has planted a device in your home and can remotely activate it at a time he thinks will cause you the most disruption

To try an track it down an ultrasonic detector will be essential - A quick look on Ebay returns a couple of different units for aound the $100 mark that look like they would be quiet usefull.

Check out amazing1.com

A sensitive ultrasonic receiver mike (as used for distance measuring for example) should pick up to at least 40KHz, attach it to an Oscilloscope via a suitable small amplifier should show you what is happening......nothing expensive.....especially if you can borrow a scope......but there are some cheap ones as attachments for a PC if needed....

Look here, there are two ultrasonic sensors soldered to this PCB shown on ebay:-

Ultrasonic Sensor

If you pick up such signals, then make the sensor more directional with a simple paper tube, then you find the highest level and in which direction it lies from you.

Sweep slowly around 360° a few times to be certain, maybe outside your house. Move up and down once the direction is found to see the height as well....

Have you offended your neighbor in some manner? He may be trying to get you to move.....illegally.

GA

The wave length of a 10 KHz signal is about 1.3 inches so the output of two ultrasonic transducers placed close to each other, and, fed into a scope would make a really good directional detector.

I had made one of the ultrasonic devices "for my neighbors dogs" back in the 80's, because they were a real problem, the noise solved the issue. It went off when the dog or other loud outside noise set the amp off. I should have patented the concept as this is now an item in the market place and in use by the USPS.

If this barking is a regular event , check for devices that can create such noises. I had fixed more than one heat pump due to owner complaints of the dog barking when it started. They were heat pumps with an ALCO brand reversing valve and they failed part way in their transfer from heat to cooling for the defrost cycle, setting up a real whistle --for the dogs ears.

Fans and other moving items can do this also. Have you had the dogs outside to see if the result is the same, to determine if it is inside or outside?? My device would not be able to bother a dog inside a house even next door less than 100 feet. Woody

Years ago, a friend of mine had problems with a working couple next door leaving their dogs out all day barking and barking.

Talking did no good, police were not interested, he was driven crazy as he had his office at home and needed to be able to work, concentrate and receive clients.....

Finally, he bought a load of ExLax chocolate bars and fed the dogs every day. They loved it!!

They shit the house every night. Very loose stuff.......wet and runny......

After 14 days "full of shit", no more dogs.......back to the pound from whence they came.....

I dont think that is fair to the dogs. The dogs owners are the problem. My dog does not bark constantly but even if he did, I would hate to think my neighbors would poison him rather than talk to me.

I am a dog owner and dog lover too, BUT HUMANS ALWAYS COME BEFORE DOGS AT ALL TIMES.

Technically, ExLax is not really a poison, it just adds water to the small & large intestine contents.......

If you do not prevent your dog(s) annoying others, believe me, them shitting in the house is the least of your problems.....

Here and also in the UK I know of personally such incidents (and I give you a personal guarantee that it also happens where you live too!!!), where such dog offended (awful) people feed them meat with rat poison or even bits of razor blades in it.........now that is a horrible death.......

Now you decide what is best for your neighbors and your dogs......

I trained my dog never to bark just because another brainless/untrained dog does. Even when out walking or with my bike, other dogs barking are simply ignored completely, they are below her as far as she is concerned.

She only barks when the door bell goes off or the front door is opened....she never roams the garden alone, not even for 2 minutes, I (or one of the family) are always with her outside the house.

We have never had any complaints since she came here as a puppy in November 2008....

It is the responsibility of the owner.....

I am well aware of the bad things people do, but your statement that humans come before dogs at all times, try telling me that when i find out you did something to my dog. might save you in court, but not out in the real world.

My final statement on the subject; It does not matter if your tall or short, white or black, rich or poor, religeous or atheist, strait or homosexual, cop or crook, THAT DOG STILL LOVES YOU! Of course if your a republican he will probobly run away and join the coyotes.

Another dog owner who seemingly puts his dog before humans.

I have a nephew that still is missing a big chunk of his right thigh, taken out when he was 10 years old, playing in a public children's park, 20 years ago.....by a dog that had never bitten or attacked anyone before. There is always a first time....

If that had been one of your children, I am already convinced you would take a different/better/correct slant on dogs.....its human nature.

But its a big company you are in, I've met a few of them here! Plenty in the UK too.....my Mother was one!!!! Her Dalmatian bit my step son, caught him on the forehead and jaw with all four big canine teeth, luckily only 4 holes to clean, he retained his nose, lips and eyes.....it could have been a hell of a lot different. Also a Dog that had never bit anyone.....he was about 8 years old when he finally bit....

I punched the dog into the next room, probably 8 or 9 feet. He never snarled, let alone bit, anyone else after tha.

My Mother ranted that I had punched the dog at all!!!!!!!Could not give a hoot about my stepson's face.......flawed mentality.....

The law in most civilized countries feels the same way I do...which sort of lets me know I am on the right side....

Also, all dogs, big and small (and I like 'em big!) can be particularly dangerous to children and old people.....In the UK about 40 years ago, 5 little Jack Russells killed a child, 6 years old if I remember correctly.......

If your dog even tried to bite me, its dead, right there and then, no matter how mistaken it is in its attack.....no ifs, buts or maybes.......dead, dead, dead.....

And if it had attacked my children or grand children, it would be even quicker dead if that's possible.....I can kill even a large dog with my bare hands, I know exactly a dog's weak points and I am still strong enough for even the biggest ones......I might get bitten once, but only once.....

Which is why I train my dog for all occasions, I take responsibility, I have insurance (just in case), but I always watch my dog really carefully and I know that she loves kids and women, just doesn't like men she has not been introduced to.....strangers.

A question, has a dog ever attacked/bitten someone you loved, in your family maybe? Yes or no?

Any dog that bites a human needs to be put down. No second chance. I will not deny that. And I have been attacked myself, and have the scars to prove it. My concern was with persons who would deliberately cause harm to any dog that is not attacking or even chasing someone, that would take out their hatred on an animal solely because of problems with the dogs owner. Always a first time? I disagree. I have known dogs who had never bitten anyone from the time they were born until they passed. I have also witnessed children tormenting dogs that sat there and took it, ( a pit-bull!) or ran out of reach. Here is where I will agree, always a first time, a child or even adult that torments animals will be bitten sooner or later. And it is always the dog that pays the ultimate price. I wont comment on your nephew, I was not there, hopefully he has since overcome his injuries.

The point I was originally trying to get across is that it is WRONG to take out your frustrations with somebody by doing something to the dog. Not only wrong but very dangerous and stupid.

My nephew still has a shallow "hole" in the muscle in his right thigh. It will never go away......when the accident happened, he had a muscle 95% cut through. It took several operations and years of training to allow him to walk properly with no limp.

By the way, the cranks that poison dogs are seldom ever found......they do it at night or when they know nobody is home, you have a snowball's chance in hell of finding them. They are just sick....though letting your dog bark and annoy people is a good way to get it attacked I believe......

Video surveillance is almost a must nowadays, which is why my dog lives in the house, not in the yard, though she also has not annoyed anyone....as far as I am aware.....

We have had several dogs die mysteriously or be ill for weeks in the village in the last 10 years......

This discussion is about barking dogs, not attacking dogs.

Barking dogs get attacked in some places.......

My dog has been trained to NOT attack anyone or anything, she even has two cats at home that sleep in her bed.......there are not many dogs percentage wise that are so trained/are......few and far between.

"Technically ex-lax is not a poison" maybe that applies to humans but chocolate in any form is poison for dogs, as is garlic, onions, grapes, alcohol, coffee, and macadamia nuts, (National Geographic)

Maybe your nephew was attacked because of your propensity for punching the dog. Could it be that you were the cause of the attack?

The discussion is about barking dogs, not biting dogs, and not your fearless attack on your mothers dog.

My original response was to inform others that your suggestion was wrong, and in this part of the world doing something like poisoning your neighbors dog will get you arrested and likely some jail time.

"Technically ex-lax is not a poison" maybe that applies to humans but chocolate in any form is poison for dogs, as is garlic, onions, grapes, alcohol, coffee, and macadamia nuts, (National Geographic)

Few dogs will drop dead of such things in small occasional doses, a bit like me and beer!!! Though I am not recommending them in anyway shape or form for dogs. My dog does not get any of them, ever.

Have you ever understood how Rat poison (Warfarin for example) kills? It is not a 5 minute thing, it may take days or even weeks, very, very nasty. See here:-

http://www.petmd.com/dog/emergency/digestive/e_multi_anticoagulant_poisoning#.UPqmifLNkYI

By the way, it was a good American friend at the end of his tether who used the ExLax...I still find it better than rat poison or razor blades, don't you agree? (Please start answering my questions, just as I am attempting to answer you!!)

Like all things, small amounts won't kill as many old ladies will tell you as they feed their dogs daily sweets....including chocolate....the same ones who accidentally kill their cats with aspirin....or dry (once) their small wet dogs in the Microwave.....it worked before in an electric oven on very low!!!!

Maybe your nephew was attacked because of your propensity for punching the dog. Could it be that you were the cause of the attack?

The use of the word "propensity" tries (wrongly) to insinuate that I punch dogs on a weekly basis. Wrong again.....

But to answer where/when:-Unlikely, the attack happened around 1976 in the UK, at my parents house. My nephew was born in Germany in 1982.......... The Dalmation died of old age in 1980.....OK? The attack was in '91 or 2.

I have only ever punched two dogs in my whole life, the first instance you know about, the second was my first Weimaraner when my 2 year old (English) nephew picked up her bone in the garden and she growled very fiercely 1979/80......I don't wait for the attack before doing something....but you do?OH!

The discussion is about barking dogs, not biting dogs, and not your fearless attack on your mothers dog.

I mentioned that barking dogs sometimes get poisoned and should be trained/housed to stop them annoying (nasty) people.... Barking dogs annoy people, some (nasty) people might try to poison dogs........(sh)it happens!

Under the same set of circumstances, small child/large biting dog, I will still do the same again, as I did some years later with my own dog.....

Also, I have received several CR4 emails from colleagues here, saying basically the same as I do and obviously not of your persuasion.....but not willing to set themselves up for an attack by a (dog) fanatic.....I don't even know if they have dogs of their own or not.....it is unimportant anyway....

I was being very informative, you may have problems understanding everything, sorry!!!

No, you explain very badly in English and I cannot read Spanish which may be your first language, but I can read Portuguese, French and German if that helps you to make a better explanation!!!

I also live in Germany, which means that my first language has suffered a bit over the years!!! That is why, when I post, I keep the English as simple as possible for the non English as a first language speakers here...

My original response was to inform others that your suggestion was wrong, and in this part of the world doing something like poisoning your neighbors dog will get you arrested and likely some jail time.

The poisoner will usually not be found, proof would be very difficult, you would need to cut the dog open (if its dead not a problem) to look for maybe chocolate or nuts, seems harsh on the dog (the nuts are not always in the dog, but maybe on or near!)

Have a great day anyway.

You simply do not understand English.....

It was two DIFFERENT nephews, two different dogs (only one that I owned), two different countries, two different years, one REAL attack and one warning of attack.......NOW do you understand?

Do you believe me now when I say you write English badly and by the way, you also understand it badly, which is far too often than it should be, par for the course for Hispanics (I did not necessarily mean anyone from Mexico) living in the USA......which far outnumber the "genuine" German born, living in the USA. Millions to one I should guess.....though one should not forget that around 60 % of Americans are fourth or fifth (or more) generation German.....

The USA speaks English as a national language because of a German voting for it, many years ago (I have been told!)!!!

I went for the best percentages on original language, I thought I caught a touch of Spanish in the way you wrote, obviously wrongly....BUT.....I could tell quickly that English is not your first language......

Understanding of a foreign language is the MUST, before you can write it properly.....

But for you I will changed my signature on CR4! Just for fun! But it will only be visible in my next post....not in this one. Wait up!!!

CR4 was quicker than I thought, it got put in that post as well!!!!

Did you like it?

HF RF is inaudible...not likely impossible

You do realize that HF is 3-30 MEGA Hertz, right?

Aww, c'mon...AP?

The high end of dog hearing is 100kHz.

How, in the name of bloody hell, would you describe HF in any sane sense of the word if one was not referring to radio frequency communications? HF in and of itself is in the RF portion of the Electromagnetic Spectrum!

When the OP said HF, and then you state "The OP simply knows that the neighbor works with RF"...that's gibberish. Did you mean he stated HF?

You don't turn an RF signal in audio unless you have a way to downconvert it to the audio spectrum...it is then no longer HF! ITS AF! There is a little something in there called the Intermediate Frequency you need to effect these changes. (You can use a "radio" to do that, by the way. It's an invention which generally demodulates RF signals into AF signals and converts the electrical pulses to sound waves using a "speaker".)

You may as well throw your wireless AP, Bluetooth, and cell phones in there, to boot!

I am not providing links for any of this, use Google and Wikipedia to dispell any aluminum hat conspiracy theories for yourself.

_{But I digress...}

Cheers!

Once again I have to say, check out amazing1.com

PSP60 Free PSP60 Instructions

If only there was a distributor in Australia

I noticed that the neigbor is into Satellite comm. Satellite dishes make very directional audio "spotlights" They can concentrate a low power dog frequency over long distances. You may notice a dish with a powerful ultrasonic transducer pointed toward you during the doggy "duck and cover" excercises. It would keep neighbor dogs from using his property and save you some trouble from animal control. Also if your dogs are equiped with electronic fence collars you may want to turn them off at night.

Satellite dish to focus a beam of doggie ultrasonics. I don't know how well it would work but that is both an interesting idea and on topic.

http://www.amazing1.com/accoustics.htm You can listen for the irritating sounds from the neighbor. He has probably installed an ultrasonic amp and a transducer on one of his parabolas to emit dog frequencies. These work like a spotlight for sound and radio frequencies. If you made a mirror finish on one you can use it for a spotlight reflector.