Author Topic: RF Signal Killers  (Read 1947 times)


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RF Signal Killers
« on: November 27, 2013, 08:15:13 AM »
No mater what your using for RF Home automation there are things out there that many don't realize will kill a transmission. OK maybe not kill it but prevent it from reaching its intended target.

Here is a simple list:
1: Other devices using the same RF band this list can be very long if it is in the 2ghz range.
2: Large metal objects directly in between  the two talking devices.
This includes fridges, stoves, furnaces & duct work, metal studs, mesh for stucco or cement.
3: Distance between devices. This can be over come by placing antennas higher or modifying the device with a larger antenna or a RF repeater (SR751).
« Last Edit: October 03, 2014, 01:58:49 PM by Tuicemen »
X10 turned me into a Software programmer.
A warning label should have been added ;)

Old Tele man

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Re: RF Signal Killers
« Reply #1 on: November 28, 2013, 12:06:31 PM »
Yep, RF, like visible "light," is hampered by "shadows" created by physical objects, with some objects being vastly more "RF-opaque" than others.

As for distance, gotta always keep in mind the "Inverse Square Law" characteristic: doubling the distance quarters the power available.
« Last Edit: November 29, 2013, 03:31:08 PM by Old Tele man »
...and the Devil said "...yes, but it's a DRY heat!"