Yes it is for monitor weather alerts in my area east of Toronto but I
need to detect the 1050 tone and convert that to a logic level to input
to my controller.
Randy
On 12-Jan-05, at 5:24 PM, mch wrote:
>
> He didn't say it was for a weather alert. Maybe he has another
> application, but a 1050 Hz decoder is a 1050 Hz decoder.
>
> BTW, Mike, thanks for the info on the 12-251 SAME weatheradio. I picked
> up two of them. They are getting really hard to find. $17.97 each.
>
> Joe M.
>
> JOHN MACKEY wrote:
>>
>> That is a real pain!!
>>
>> The old system using 1050 hz decoding goes off weekly on tests, plus
>> will go
>> off even if the problem is 3 counties away & of no effect to your
>> area.
>>
>> Stick with SAME decoding.
>>
>> ------ Original Message ------
>> Received: Wed, 12 Jan 2005 02:20:14 PM CST
>> From: mch <[EMAIL PROTECTED]>
>>> Just pick up an older NOAA alert receiver for a few bucks. They have
>>> a
>>> 1050 Hz tone decoder circuit built in. It's probably cheaper than
>>> making
>>> a decoder yourself.
>>>
>>> Joe M.
>>>
>>> Randy Elliott wrote:
>>>>
>>>> Greeting to the group
>>>>
>>>> I need to decode a single frequency (1050 hz) and output a logic
>>>> level
>>>> + or - doesn't matter. I know this sounds really simple but I guess
>>>> I'm
>>>> stupid today.
>>>> I've tried an ne567 PLL and can't even get it to work. (could be bad
>>>> chip though, just dug it out of my junk box)
>>>> Anyone have any circuits floating around in your archives that
>>>> could do
>>>> what I'm looking for?
>>>>
>>>> Randy Elliott VE3JPU
>>>
>>>
>>>
>>>
>>>
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
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