Dog Repeller - That Works! - Page 1
Forum section: electronics / projects

author: mengfei
author_rank: Regular Contributor
timestamp: August 30, 2023, 07:07:47 am
content: has anyone built a dog repeller that actually works? At what freq that those work?bought a few online & I could have sworn the dogs where laughing at me when i pointed the thing

author: Marco
author_rank: Super Contributor
timestamp: August 30, 2023, 07:39:41 am
content: A Google scholar search doesn't look very promising.https://scholar.google.nl/scholar?start=0&q=Dog+ultrasonic+aversionEven at 120dB pure ultrasonic was not effective, by the time it works it will get damaging.

author: Terry Bites
author_rank: Super Contributor
timestamp: August 30, 2023, 07:42:49 am
content: I've used Tigers. Very effective.

author: RoGeorge
author_rank: Super Contributor
timestamp: August 30, 2023, 08:05:40 am
content: Try dog-repellent spray, that is supposed to work. I've heard dogs can be deterred by the sparks of high voltage teaser (stun baton), though in some countries stun devices would be illegal to carry with you.

author: mengfei
author_rank: Regular Contributor
timestamp: August 30, 2023, 08:33:13 am
content: Quote from: Terry Bites on August 30, 2023, 07:42:49 amlol, yeah i've seen those vids where they place a toy/ stuff tiger behind the dog & once see the dog goes berserk

author: mengfei
author_rank: Regular Contributor
timestamp: August 30, 2023, 08:36:19 am
content: Quote from: RoGeorge on August 30, 2023, 08:05:40 amI thought about that, but like what you said - it illegal.I just saw one advertised here, it's an ultrasonic type thing with a strobe light & it does shoo dogs away, well in the video that is. It could be the strobe lights

author: Gyro
author_rank: Super Contributor
timestamp: August 30, 2023, 11:20:31 am
content: Try used teabags soaked in Jeyes Fluid and scattered around the area that you want to deter them from. It works for cats, I can't see dogs (or, unfortunately, humans) being keen on the smell either.

author: Veteran68
author_rank: Frequent Contributor
timestamp: August 30, 2023, 01:36:20 pm
content: I don't know about "repellent" but we've used thisultrasonic anti bark deviceon our dogs when something causes them to go nuts. With six (6) dogs barking at the top of their lungs indoors, no amount of shouting will get them to stop. This little thing does the trick, when we push the button all but one of them (the oldest and likely most deaf) scatter and stop barking immediately.

author: Faranight
author_rank: Unknown
timestamp: August 30, 2023, 03:04:51 pm
content: Veteran68: Can you by any chance measure what waveform and frequency that device' ultrasonic tansducer is operating at?

author: Veteran68
author_rank: Frequent Contributor
timestamp: August 30, 2023, 03:41:09 pm
content: Quote from: Faranight on August 30, 2023, 03:04:51 pmNot sure if I'm equipped to. I wouldn't think it would in the operating range of my sound meter, so assume I'd have to open it up and scope it. I don't have a VNA or SA, only a 200Mhz scope, and not really an RF guy, but if someone pointed me in the right direction I could give it a shot.EDIT: Not sure if this helps? Much lower frequency than I assumed. From the Amazon listing:

author: jmelson
author_rank: Super Contributor
timestamp: August 30, 2023, 09:16:44 pm
content: How about a deer repeller? Our garden has been savaged this year by deer! I've been thinking of a vary sensitive PIR motion sensor connected to a motor that clangs a bell for a few seconds. I don't want to drive the neighbors crazy, but I want the deer to stay out of the garden. We have a 3 foot high fence but they just laugh at that!All suggestions welcome.Jon

author: eutectique
author_rank: Frequent Contributor
timestamp: August 30, 2023, 10:45:20 pm
content: Quote from: jmelson on August 30, 2023, 09:16:44 pmKuchisabishiiShishi-odoshi

author: themadhippy
author_rank: Super Contributor
timestamp: August 30, 2023, 10:49:22 pm
content: QuoteThe suggestion above for tigers should also work for deer

author: DavidAlfa
author_rank: Super Contributor
timestamp: August 31, 2023, 12:11:43 am
content: A decent sized Maine Coon will do the the job!

author: mengfei
author_rank: Regular Contributor
timestamp: August 31, 2023, 01:30:25 am
content: Quote from: Veteran68 on August 30, 2023, 01:36:20 pmNiCE!this is what i need when i walk my dog around the area, lot's of dogs barking & some are even loose so i carry a Big Stick& for our neighbors dog that never stops barking till the early morning dawn

author: amyk
author_rank: Super Contributor
timestamp: August 31, 2023, 04:17:42 am
content: That bottom left picture in the image above and "Control Range" mentioned in the text makes it look like a remote control. Chinese marketing at its best

author: n5al
author_rank: Contributor
timestamp: August 31, 2023, 08:43:33 am
content: Quote from: Terry Bites on August 30, 2023, 07:42:49 amAfter repelling the dog, what do you do about the remaining tiger?BTW, the tiger below was found roaming through my neighborhood, here in Mexico. Fortunately, it was tame and the neighborhood security guards were able to detain it. It turned out to be a neighbor's pet that had escaped. A different neighbor has a pet lion inside their house. I don't know why people keep these wild animals as pets.

author: voltsandjolts
author_rank: Unknown
timestamp: August 31, 2023, 09:21:02 am
content: Quote from: jmelson on August 30, 2023, 09:16:44 pmSame here. A bullet can definetly fix the problem but other than that I'm not sure. Sudden loud noises make them run 40 yards, then stop and look at you. No doubt returning to munch on the garden when I go back to sleep. I would assume high frequency noise would have similar effect. The suggestion above about an electric arc sounds interesting. Disco tec laser light mirror thingy maybe.

author: Marco
author_rank: Super Contributor
timestamp: August 31, 2023, 09:36:03 am
content: Motion detectors and sprinklers.

author: Konkedout
author_rank: Frequent Contributor
timestamp: September 02, 2023, 04:03:26 am
content: How about a dog propeller instead of a dog repeller? It sounds sorta close and might be easier to design, but it would have a disadvantage a bit like fly killing blocks.1) Hold one block in your left hand.2) Place fly on top of this block.3) Grab the other block in your right hand.4) Forcefully bring the block in your right hand down on top of the fly on the block in your left hand, crushing it.So the big difficulty would be strapping the engine and propeller onto the dog, and getting the engine started, aiming the (dog+propeller) in the desired direction.

author: Zero999
author_rank: Super Contributor
timestamp: September 02, 2023, 01:02:46 pm
content: Yes. I filled a small spray bottle with a 750ml of water, a teaspoon full of chilli powder (about 5ml) and a tablespoon (around 20ml) of vinegar. It's very effective and doesn't harm the dog.

author: JustMeHere
author_rank: Frequent Contributor
timestamp: September 03, 2023, 03:56:59 am
content: Quote from: jmelson on August 30, 2023, 09:16:44 pmCheck out poly tape electric fence. That's what all of the farmers around here have switched to.

author: jmelson
author_rank: Super Contributor
timestamp: September 03, 2023, 06:03:06 pm
content: Well, yes, electric fence is another option. I'd be a little worried about liability if a kid gets zapped, though.Jon

author: Njk
author_rank: Frequent Contributor
timestamp: September 03, 2023, 07:10:06 pm
content: Border collie can fix the problem, I think. After all, dogs are our friends

author: JustMeHere
author_rank: Frequent Contributor
timestamp: September 03, 2023, 10:53:48 pm
content: Quote from: jmelson on September 03, 2023, 06:03:06 pmThere's no real damage. But the thing about the tape is that it is very visible. It's not like the old wire thatmightbe energized. If trespassing is involved then there is the "dirty hands" clause.

author: Kasper
author_rank: Frequent Contributor
timestamp: September 04, 2023, 06:12:24 am
content: Quote from: jmelson on August 30, 2023, 09:16:44 pmI've had a couple neighbors with 'ultra sonic' deer repellers in the past. Fortunately they weren't close enough to hear from home but I always hated them when I went for a walk. One stopped working after a while, I figured the battery died and they didn't realize.

author: Haenk
author_rank: Super Contributor
timestamp: September 04, 2023, 02:36:43 pm
content: Quote from: Kasper on September 04, 2023, 06:12:24 amOur neighbour hates cats, and we happen to have one - as do most of the other neighbours. So he installed an ultra sonic device, PIR activated.Luckily, my hearing degraded, but my 16yo is quite annoyed by it.However, the cats do not care. Like at all. They learn fast that there is no danger involved, so they ignore it.So I highly doubt this will work for dogs either.

author: n4te
author_rank: Regular Contributor
timestamp: September 04, 2023, 06:21:48 pm
content: For places that have aggressive wild dogs (eg Romania) an air horn might help. It's something in a can under pressure and a horn that makes a terrible, loud honking sound.For a yard, the motion/sprinklers and electric fence ideas seem good.