Re: Unusual Challenge

[mleuck <m.leuck@xxxxxxxxx>]

On Wednesday, October 20, 2021 at 7:32:04 PM UTC-5, ABLE1 wrote:
> Hey Guys,
>
> Would like some thoughts on the following challenge.
>
> Customer has a showroom/office in one building and the shop in another
> that is 70 feet away. They wanted to have a way to get notified in the
> shop that a potential customer came into the showroom.
>
> What I installed was a door contact switch on the entry door and wired
> a Linear DXT-31 transmitter and a Linear DXT-701 Receiver in the shop.
>
> From there I used the contacts on the receiver to trigger and Altronix
> timer and the contacts there to trigger a horn/buzzer for about 1 sec.
> when the door was opened.
>
> It has worked quite well for some time but, recently I was told that
> it did not respond to ALL entering the showroom.
>
> I was there a couple of weeks ago and it was working but the the CR2032
> batteries were about 60% level and I changed to new. Tested the
> batteries were at 100%. OK.
>
> I was then informed yesterday that it was still missing some entries.
>
> I stopped in today and first I tested the door 3 times and it did not
> work.
>
> I tested the batteries. They were at 100%
>
> I removed the transmitter and went to the shop and it worked 5 times
> in a row. Or let's say 100% I put the transmitter back in the attic
> above the showroom where it was but staff was in a meeting so I could
> not test.
>
> Was told later that they tried it and it did not work a total of 3 times
>
> Now the receiver has a wire about 7" long as a antenna. I have
> it hanging over the edge of a window so that the walls would not block
> the RF signal. The Transmitter is in the attic space on a vertical
> 2x4. The only thing that might block the signal would be the plywood
> and asphalt shingles on the roof, 70' of distance, bug screen and glass
> window.
>
> Needless to say this is a intermittent problem that is NOW not working!!
>
> So, any thoughts on this before I type something that really made a
> difference this afternoon.
>
> Thanks for any thoughts!!
>
> Les

Use better wireless with longer range like Innovonics