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April 22nd 15, 10:24 AM
I receive complaints about the Cat Deterrent.

The elderly in particular use a cat-deterrent in their garden. It is a small apparatus with a speaker attached to it. It produces a high-pitched bleep of more than a 100 decibel. The sound is mostly only audible for children, youngsters and people with ears that are still good. Many cat-deterrents use the same noise as the Mosquito. The sound causes pain in the ears, headache, and ringing in the ears. If you have any complaints consult your GP and make mention of it on social media! Working Mosquito: 17KHz-20KHz 90dB Working Cat Deterrent/Animal Chaser: 16KHz-23KHz 130dB



For the very high frequencies, 10-20 kHz, the limits were given as one-third-octave band Sound Pressure Levels in the range 75-85 dB, to avoid unpleasant subjective effects in exposed persons; higher noise levels were found to cause annoyance, tinnitus, headaches, fatigue and even nausea.

For ultrasonic components above 20 kHz, the limits were set to avoid hearing damage in the audible (lower) frequencies. One-third-octave band levels of 105-115 dB were observed to produce no temporary hearing loss, and were therefore judged non-hazardous in respect of permanent hearing damage.



http://www.hse.gov.uk/research/crr_pdf/2001/crr01343.pdf



For the degree of the sound source awareness, 43% of the subjects answered that they "know (the device)." However, when asked about the kind of sound, many of them mistook it for a "mosquito sound." In addition, some responded that "my head may split" and "I will never come here again because of the pain in the ear.



http://www.icben.org/2014/papers/Team4/4_16%20MariUeda_1.pdf

http://www.mosquito.pieptonen.nl

cat owner
April 29th 15, 02:56 AM
On Wednesday, April 22, 2015 at 5:24:18 AM UTC-4, wrote:
> I receive complaints about the Cat Deterrent.
>
> The elderly in particular use a cat-deterrent in their garden. It is a small apparatus with a speaker attached to it. It produces a high-pitched bleep of more than a 100 decibel. The sound is mostly only audible for children, youngsters and people with ears that are still good. Many cat-deterrents use the same noise as the Mosquito. The sound causes pain in the ears, headache, and ringing in the ears. If you have any complaints consult your GP and make mention of it on social media! Working Mosquito: 17KHz-20KHz 90dB Working Cat Deterrent/Animal Chaser: 16KHz-23KHz 130dB
>
>
>
> For the very high frequencies, 10-20 kHz, the limits were given as one-third-octave band Sound Pressure Levels in the range 75-85 dB, to avoid unpleasant subjective effects in exposed persons; higher noise levels were found to cause annoyance, tinnitus, headaches, fatigue and even nausea.
>
> For ultrasonic components above 20 kHz, the limits were set to avoid hearing damage in the audible (lower) frequencies. One-third-octave band levels of 105-115 dB were observed to produce no temporary hearing loss, and were therefore judged non-hazardous in respect of permanent hearing damage.
>
>
>
> http://www.hse.gov.uk/research/crr_pdf/2001/crr01343.pdf
>
>
>
> For the degree of the sound source awareness, 43% of the subjects answered that they "know (the device)." However, when asked about the kind of sound, many of them mistook it for a "mosquito sound." In addition, some responded that "my head may split" and "I will never come here again because of the pain in the ear.
>
>
>
> http://www.icben.org/2014/papers/Team4/4_16%20MariUeda_1.pdf
>
> http://www.mosquito.pieptonen.nl

this is spam its in the wrong group

Christina Websell
May 3rd 15, 12:26 AM
> wrote in message
...
I receive complaints about the Cat Deterrent.

The elderly in particular use a cat-deterrent in their garden. It is a small
apparatus with a speaker attached to it. It produces a high-pitched bleep of
more than a 100 decibel. The sound is mostly only audible for children,
youngsters and people with ears that are still good. Many cat-deterrents use
the same noise as the Mosquito. The sound causes pain in the ears, headache,
and ringing in the ears. If you have any complaints consult your GP and make
mention of it on social media! Working Mosquito: 17KHz-20KHz 90dB Working
Cat Deterrent/Animal Chaser: 16KHz-23KHz 130dB



For the very high frequencies, 10-20 kHz, the limits were given as
one-third-octave band Sound Pressure Levels in the range 75-85 dB, to avoid
unpleasant subjective effects in exposed persons; higher noise levels were
found to cause annoyance, tinnitus, headaches, fatigue and even nausea.

For ultrasonic components above 20 kHz, the limits were set to avoid hearing
damage in the audible (lower) frequencies. One-third-octave band levels of
105-115 dB were observed to produce no temporary hearing loss, and were
therefore judged non-hazardous in respect of permanent hearing damage.



http://www.hse.gov.uk/research/crr_pdf/2001/crr01343.pdf



For the degree of the sound source awareness, 43% of the subjects answered
that they "know (the device)." However, when asked about the kind of sound,
many of them mistook it for a "mosquito sound." In addition, some responded
that "my head may split" and "I will never come here again because of the
pain in the ear.


Never found the need for a cat deterrant. I have a cat and he is a good
deterrant for any other cat coming anywhere near my house or garden. He
fights them.