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Amplify handheld meter buzzer sound level.

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Subject: Amplify handheld meter buzzer sound level.
From: dmcousin...@gmail.com (mike daniels)
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by: mike daniels - Tue, 8 Jun 2021 11:53 UTC

We have a meter that measures RF field strength. It has a threshold setting that beeps a buzzer when the peek field strength gets above a certain level.

The issue is the beep it somewhat soft. In a quiet room with normal hearing, it is easily audible. Unfortunately the tech has some hearing loss and the room is not always totally quiet (electronic fans running).

I'm thinking there is a little condenser mike I can tape to the device to amplify the beeping sound. The meter is hung on the wall and is on 24/7 so it will not be touched or bumped during operation. (external noises not amplified) Ideally it would only be sensitive to the beep frequency range but a filter may be in order to make that happen i'm sure.

A alternative is to light/blink a large easily seeable (at least 1") LED

I could design and build something but don't have the spare time now. Something off the shelf from Amazon, ebay, or equivalent would be preferred.

Appreciate any suggestions.

thanks

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Subject: Re: Amplify handheld meter buzzer sound level.
From: deanh6...@gmail.com (Dean Hoffman)
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by: Dean Hoffman - Tue, 8 Jun 2021 13:28 UTC

On Tuesday, June 8, 2021 at 6:53:59 AM UTC-5, dmcous...@gmail.com wrote:
> We have a meter that measures RF field strength. It has a threshold setting that beeps a buzzer when the peek field strength gets above a certain level.
>
> The issue is the beep it somewhat soft. In a quiet room with normal hearing, it is easily audible. Unfortunately the tech has some hearing loss and the room is not always totally quiet (electronic fans running).
>
>
> I'm thinking there is a little condenser mike I can tape to the device to amplify the beeping sound. The meter is hung on the wall and is on 24/7 so it will not be touched or bumped during operation. (external noises not amplified) Ideally it would only be sensitive to the beep frequency range but a filter may be in order to make that happen i'm sure.
>
> A alternative is to light/blink a large easily seeable (at least 1") LED
>
> I could design and build something but don't have the spare time now. Something off the shelf from Amazon, ebay, or equivalent would be preferred.
>
> Appreciate any suggestions.
>
> thanks

Would wireless headsets like motorcyclists use be of any use?

Re: Amplify handheld meter buzzer sound level.

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by: Dave Platt - Tue, 8 Jun 2021 17:50 UTC

In article <dbc6f751-84ad-45ad-a83c-a51f5dba4657n@googlegroups.com>,
mike daniels <dmcousin2000@gmail.com> wrote:

>A alternative is to light/blink a large easily seeable (at least 1") LED

Commercial fire alarm annunciators often include a strobe light, for
this very reason.

https://www.superbrightleds.com/moreinfo/led-hideaway-strobe-lights/led-hideaway-strobe-lights-mini-emergency-vehicle-led-warning-lights/1905/ might do the trick.

Re: Amplify handheld meter buzzer sound level.

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by: none - Tue, 8 Jun 2021 19:20 UTC

In article <dbc6f751-84ad-45ad-a83c-a51f5dba4657n@googlegroups.com>,
mike daniels <dmcousin2000@gmail.com> wrote:
>We have a meter that measures RF field strength. It has a threshold
>setting that beeps a buzzer when the peek field strength gets above a
>certain level.
>
>The issue is the beep it somewhat soft. In a quiet room with normal
>hearing, it is easily audible. Unfortunately the tech has some hearing
>loss and the room is not always totally quiet (electronic fans running).
>
>
>I'm thinking there is a little condenser mike I can tape to the device
>to amplify the beeping sound. The meter is hung on the wall and is
>on 24/7 so it will not be touched or bumped during operation. (external
>noises not amplified) Ideally it would only be sensitive to the beep
>frequency range but a filter may be in order to make that happen i'm
>sure.
>
>A alternative is to light/blink a large easily seeable (at least 1") LED
>
>I could design and build something but don't have the spare time now.
>Something off the shelf from Amazon, ebay, or equivalent would be
>preferred.
>
>Appreciate any suggestions.

Just mount the meter on a sound board like from on old piano.

>
>thanks
--
"in our communism country Viet Nam, people are forced to be
alive and in the western country like US, people are free to
die from Covid 19 lol" duc ha
albert@spe&ar&c.xs4all.nl &=n http://home.hccnet.nl/a.w.m.van.der.horst

Re: Amplify handheld meter buzzer sound level.

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by: Jasen Betts - Tue, 8 Jun 2021 20:11 UTC

On 2021-06-08, mike daniels <dmcousin2000@gmail.com> wrote:
> We have a meter that measures RF field strength. It has a threshold setting that beeps a buzzer when the peek field strength gets above a certain level.
>
> The issue is the beep it somewhat soft. In a quiet room with normal hearing, it is easily audible. Unfortunately the tech has some hearing loss and the room is not always totally quiet (electronic fans running).
>
>
> I'm thinking there is a little condenser mike I can tape to the device to amplify the beeping sound. The meter is hung on the wall and is on 24/7 so it will not be touched or bumped during operation. (external noises not amplified) Ideally it would only be sensitive to the beep frequency range but a filter may be in order to make that happen i'm sure.
>
> A alternative is to light/blink a large easily seeable (at least 1") LED
>
> I could design and build something but don't have the spare time now. Something off the shelf from Amazon, ebay, or equivalent would be preferred.
>
> Appreciate any suggestions.

off-the-shelf, hmm, you could try a record player as contact microphone and amplifier.

--
Jasen.

Re: Amplify handheld meter buzzer sound level.

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by: Mike Coon - Tue, 8 Jun 2021 21:11 UTC

Re: Amplify handheld meter buzzer sound level.

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by: John Doe - Wed, 9 Jun 2021 00:37 UTC

I KNOW, I KNOW!

Parallel a resistor with the output resistor.

That probably assumes incorrectly there is a resistor. Also assumes the output
can handle more current.

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by: Michael Kellett - Wed, 9 Jun 2021 14:05 UTC

On 08/06/2021 12:53, mike daniels wrote:
> We have a meter that measures RF field strength. It has a threshold setting that beeps a buzzer when the peek field strength gets above a certain level.
>
> The issue is the beep it somewhat soft. In a quiet room with normal hearing, it is easily audible. Unfortunately the tech has some hearing loss and the room is not always totally quiet (electronic fans running).
>
>
> I'm thinking there is a little condenser mike I can tape to the device to amplify the beeping sound. The meter is hung on the wall and is on 24/7 so it will not be touched or bumped during operation. (external noises not amplified) Ideally it would only be sensitive to the beep frequency range but a filter may be in order to make that happen i'm sure.
>
> A alternative is to light/blink a large easily seeable (at least 1") LED
>
> I could design and build something but don't have the spare time now. Something off the shelf from Amazon, ebay, or equivalent would be preferred.
>
> Appreciate any suggestions.
>
> thanks
>

https://www.amazon.co.uk/Wireless-Amplifier-Rechargeable-Microphone-Waistband-UK/dp/B07XRJKBBR/ref=sr_1_36?dchild=1&keywords=voice+amplifier&qid=1623246984&sr=8-36

Amazon and others have lots of types of these.

This one is £5.24 in the UK.
If you hunt you might find one with a mains psu built in.

Lack of skill dictates economy of style. -- Joey Ramone

tech / sci.electronics.design / Amplify handheld meter buzzer sound level.

Subject	Author
Amplify handheld meter buzzer sound level.	mike daniels
Re: Amplify handheld meter buzzer sound level.	Dean Hoffman
Re: Amplify handheld meter buzzer sound level.	Dave Platt
Re: Amplify handheld meter buzzer sound level.	none
Re: Amplify handheld meter buzzer sound level.	Mike Coon
Re: Amplify handheld meter buzzer sound level.	Jasen Betts
Re: Amplify handheld meter buzzer sound level.	John Doe
Re: Amplify handheld meter buzzer sound level.	Michael Kellett