Hi Everyone,

 

We recently had 4-5 false alarms caused by this detector.

 

I've never had any issues with it before so perhaps it is faulty.

 

Funnily enough it is mounted next to a wireless access point (been there happily together for a while now, although it was installed after we put our detector up). The WAP can get quite warm.

 

Surely the WAP wouldn't trigger an activation? or would it?

 

We will be replacing it anyway just in case but I thought it would be worth getting your respective views as we can't seem to figure out what is tripping the detector. (only installed 12 months ago)

 

Thanks!

Jason

Check the frequency the WAP is using, the TMD I think is 10gHz microwave, the WAP if standard should be 2.4 or 5 gHz but I have seen some custom jobs at weird frequencies, might be worth checking

Very odd. How close is the WAP?

Check the frequency the WAP is using, the TMD I think is 10gHz microwave, the WAP if standard should be 2.4 or 5 gHz but I have seen some custom jobs at weird frequencies, might be worth checking

yes. They are10.6gHz. I don't know of any wifi that high. But if very close, it could be just the proximity. Still odd though.

Thanks guys,

 

I'll have the team take a closer look when they are there and see what comes of it.

I've seen some APs produce harmonics, especially if they are iffy brands or anyone is using custom firmware and pushing power outputs. Also dodgy switch mode power supplies. But they shouldn't cause problems with a microwave detector.

I can't see how there would be interference.

It's a Cisco WAP - aren't all devices CE marked for a reason?

 

 

So if it's not the WAP and it's generating an alarm condition, what else could it be? We are going to swap the detector out but it's difficult one to diagnose.

 

Possibly for another topic but are we as installers liable for the key-holder response charges if they are constantly getting "false" alarms?

rf devices do affect things, but is the detector false alarming on both sides (ie confirming)?

I may be wrong but I seem to recall whistle having a similar problem.

If you are concerned bench test it. Or just wait until the new one either fails or stays secure.

 

As asked above, is it going into alarm on both zones i.e. confirming?

It seems that only the PIR (zone 2) is going active.