materials separating devices

English translation: the nature of substances located between the devices

05:44 Aug 24, 2005

English language (monolingual) [PRO]
Tech/Engineering - Electronics / Elect Eng / lighting control

English term or phrase: materials separating devices

talking about an RF tabletop keypad

"RF Performance: The range and performance of any RF system is dependent on a variety of complex factors such as: distance between devices, ****materials separating devices****, geometry of the home, geometry between devices, RF interference, and other installed electronic equipment. These installation factors are beyond xxxx's knowledge and control; therefore, Lutron cannot guarantee a minimum range between devices. Range performance could be reduced below the guidelines described in this installation instruction sheet. Refer to Application Note zzz, Understanding RF Communication - Path Loss for details."

...could these simply be obstacles? (or are obstacles included in "geometry between devices"?)

thanks!

Elena Ghetti KudoZ activity Questions: 2611 (4 open) (30 without valid answers) (3 closed without grading) Answers: 2529 Italy
Local time: 16:49

Selected answer:the nature of substances located between the devices

Explanation:
If there is something between the devices, it matters what material it is made of - whether it is wood, metal, plastic etc. because of the different ways different materials affect radio waves.

Selected response from:

Jack Doughty
United Kingdom
Local time: 15:49

Grading comment

many thanks to all who answered!
4 KudoZ points were awarded for this answer

SUMMARY OF ALL EXPLANATIONS PROVIDED

4 +5

the nature of substances located between the devices

Jack Doughty

simply obstacles

ahmadwadan.com

composition of walls, partitions, and doors

Michael Fratus

Answers

23 mins confidence:

simply obstacles

Explanation:
That is why I think, simply :)

--------------------------------------------------
Note added at 23 mins (2005-08-24 06:07:52 GMT)
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Sorry, I meant "what" not "why".

ahmadwadan.com
Saudi Arabia
Local time: 17:49
Native speaker of: Arabic

51 mins confidence:

peer agreement (net): +5

the nature of substances located between the devices

Jack Doughty
United Kingdom
Local time: 15:49
Native speaker of: English
PRO pts in category: 16

Grading comment

many thanks to all who answered!

21 hrs confidence:

composition of walls, partitions, and doors

Explanation:
Wood walls and drywall (plaster without metal lathe) would have little effect on range. Metal walls and walls with metal substrates or metal foil would effectively stop RF. Brick, stone, and concrete would vary according to the exact composition and moisture level. This is a household/office appliance, so materials would be those in those environments.

Reference: http://www.4dtvforum.com/remote.php

Michael Fratus
United States
Local time: 09:49
Specializes in field
Native speaker of:

English

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English translation: the nature of substances located between the devices

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