harmful interference (FCC regulations)

English translation: harmful interference (see definitions)

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:harmful interference (FCC regulations)
Selected answer:harmful interference (see definitions)
Entered by: Gayle Wallimann

20:35 Feb 5, 2004
English language (monolingual) [PRO]
Tech/Engineering - Telecom(munications) / FCC regulations for approval
English term or phrase: harmful interference (FCC regulations)
I'm giving you a quote out of "FCC Part 15" - which can be found as such via Google.
This passage refers to Class B communication devises. The almost identical Class A passage speaks of communication devices which are installed so that they might affect the "commercial environment" or "residential environment", from which I gather that Class A refers to devices installed out of doors.

That in contrast to the wording under Class B, which reads "residential installation". Comparing the two tells me that this is simply "indoors".

So much for the introduction. What I really want to know from you experts is, could the word "harmful" be substituted with "disturbing" - especially indoors and thus only referring to television reception in the same place. Doesn't "harmful" imply that, for example, the tv could explode or something much more catastrophic than just interference or disturbing intereference?

I think that interference is disturbing, whether it is "disturbing interference" or simple interference. While on the other hand, even really bad intereference is not harmful, is it?

That makes me think that the text for outdoors devices might also over-emphasize the interference. I thought it might interfere with airport traffic, but maybe it just interferes with neighborhood tv sets etc.

My question is:
How do you interpret the importance of "harmful interference" in this context?

Here is the text:

(b) For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help
Joy Christensen
Local time: 15:34
some sites with definitions of harmful interference
Explanation:
Harmful interference is not just for TV reception. It is interference with important radio, telecommunications. The link provided gives the definition of harmful interference.

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Note added at 8 mins (2004-02-05 20:44:32 GMT)
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If you enter \"what is harmful interference?\" on Google, you will find many sites that define it.
Selected response from:

Gayle Wallimann
Local time: 15:34
Grading comment
Graded automatically based on peer agreement.
4 KudoZ points were awarded for this answer



SUMMARY OF ALL EXPLANATIONS PROVIDED
5 +4some sites with definitions of harmful interference
Gayle Wallimann
5harmful interference
Mihaela Sinca
4might damage
jebeen


Discussion entries: 3





  

Answers


8 mins   confidence: Answerer confidence 5/5 peer agreement (net): +4
harmful interference (fcc regulations)
some sites with definitions of harmful interference


Explanation:
Harmful interference is not just for TV reception. It is interference with important radio, telecommunications. The link provided gives the definition of harmful interference.

--------------------------------------------------
Note added at 8 mins (2004-02-05 20:44:32 GMT)
--------------------------------------------------

If you enter \"what is harmful interference?\" on Google, you will find many sites that define it.


    www.its.bldrdoc.gov/fs-1037/dir-017/_2541.htm - 3k
    strategis.ic.gc.ca/epic/internet/insmt-gst.nsf/ vwGeneratedInterE/sf01384e.html - 4k
Gayle Wallimann
Local time: 15:34
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
Grading comment
Graded automatically based on peer agreement.

Peer comments on this answer (and responses from the answerer)
agree  Tony M: Yes, in this specialist field of interference etc., we talk of 'harmful' without it's necessarily being 'physically dangerous' (though of course it MIGHT be). 'Disturbing' interference is, I think, a layman's term. Harmful = impairs proper operation
2 mins
  -> Thanks, Dusty.

agree  pike
13 mins

agree  Rajan Chopra
4 hrs

agree  matias: usually EM interference
8 hrs
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The asker has declined this answer
Comment: Graded automatically based on peer agreement.

9 mins   confidence: Answerer confidence 5/5
harmful interference (fcc regulations)
harmful interference


Explanation:
Federal Communications Commission (FCC) defines harmful interference as interference which endangers the functioning of a radio navigation service or other safety services or seriously degrades, obstructs or repeatedly interrupts a radio communication service operating in accordance with the Radio Regulations.




    Reference: http://www.sera.org/inter.html
Mihaela Sinca
Local time: 16:34
Native speaker of: Native in RomanianRomanian
Grading comment
The problem was not "what is harmful interference?" - but how exactly does it apply in this context (the given and detailed context of television reception being disturbed).
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The asker has declined this answer
Comment: The problem was not "what is harmful interference?" - but how exactly does it apply in this context (the given and detailed context of television reception being disturbed).

24 days   confidence: Answerer confidence 4/5Answerer confidence 4/5
harmful interference (fcc regulations)
might damage


Explanation:
the interference (which always is disturbing), might physically damage the TV, the Radio...etc. that is the way I understand.

jebeen
Local time: 09:34
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