[RFI] RFI With Smoke Detectors

[Stanley Zawrotny]

And I am not the primary owner.

Stan, K4SBZ


> On Aug 18, 2015, at 12:23 PM, David Robbins <k1ttt at verizon.net> wrote:
> 
> replacement is always an option for smoke detectors... most of them have a limited lifetime because the radioactive source they use decays to a point that they don't work any more.  
> 
> 
> Aug 18, 2015 12:05:05 PM, k4sbz.stan at gmail.com wrote:
> 
> Unfortunately, replacement is not an option. It is a two family house that I built with my daughter and her husband. We have the "mother-in-law" side. There are about two dozen of them wired throughout the two sides of a large house with fairly new construction. I don't mind the chirping so much in my shack, but the chirping over in their side is what is most of the problem. The system is set up so that a fire on one side causes alarms to sound on both sides.
> 
> Stan, K4SBZ
> (850) 893-5003 (H) (850) 590-6617 (M)
> 
> "Real radio bounces off the sky."
> 
>> On Aug 18, 2015, at 10:42 AM, Richard Battles wrote:
>> 
>> Replaced the group with independent units that use batteries. the reason was that I noticed that the circuit board was showing signs of heat stress around a diode and resistor inside the unit. The security alarm system was upgraded to
>> handle smoke detectors as well. No RFI issues.
>> 
>> 
>> 
>>> On Tue, Aug 18, 2015 at 6:17 AM, Howard Lester wrote:
>>> To clarify for others, I don't think you mean the detectors are battery
>>> operated. Rather, they (like mine in my hard-wired system) have batteries
>>> (typically 9V) used for backup power.
>>> 
>>> Howard
>>> 
>>> 
>>>> On Mon, Aug 17, 2015 at 9:34 PM, Stan Zawrotny wrote:
>>>> 
>>>> ​​
>>>> 
>>>>>> You have a somewhat unusual configuration compared to most that just
>>>> install battery operated, independent units.
>>> 
>>> 
>>>> Actually not. Wireless smoke detector systems are very common. If one
>>>> detector alerts, it alerts all detectors throughout the house. Each unit is
>>>> battery operated. But independent units are not installed in modern homes
>>>> any more.
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