Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Cursitor Doom Newsgroups: sci.electronics.design Subject: Re: A Complex Metaphysical Conundrum Date: Thu, 11 Apr 2024 18:49:40 +0100 Organization: A noiseless patient Spider Lines: 89 Message-ID: References: <76nf1j9j04rknbh5kgta74nteeeht3303n@4ax.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Thu, 11 Apr 2024 19:49:41 +0200 (CEST) Injection-Info: dont-email.me; posting-host="3ee569d00c4084ce2e4c35b0d486ea2c"; logging-data="1918999"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18m+NfSJ340R3dXfQaZiSeTncR0mpCrUnM=" User-Agent: ForteAgent/8.00.32.1272 Cancel-Lock: sha1:1aXeQE1FUSgDnlh4bp2iJUuSmN4= Bytes: 4633 On Thu, 11 Apr 2024 11:58:02 -0400, "Edward Rawde" wrote: >"Cursitor Doom" wrote in message >news:76nf1j9j04rknbh5kgta74nteeeht3303n@4ax.com... >> On Wed, 10 Apr 2024 21:10:59 -0400, "Edward Rawde" >> wrote: >> >>> >>>"Cursitor Doom" wrote in message >>>news:cs4e1j5ohhb7fpcmnft14ad6pv66jtvi34@4ax.com... >>>> On Wed, 10 Apr 2024 18:18:21 -0400, "Edward Rawde" >>>> wrote: >>>> >>>>>"Cursitor Doom" wrote in message >>>>>news:i52e1j9ctjqi1k1m9ej1aid2493foetnsq@4ax.com... >>>>>> On Wed, 10 Apr 2024 16:11:39 -0400, "Edward Rawde" >>>>>> wrote: >>>>>> >>>>>>>"john larkin" wrote in message >>>>>>>news:v6sd1j1sr89ntc214dku5u5e04pks5toud@4ax.com... >>>>>>>> On Wed, 10 Apr 2024 15:57:55 -0400, "Edward Rawde" >>>>>>>> wrote: >>>>>>>> >>>>>>>>>"Cursitor Doom" wrote in message >>>>>>>>>news:c6hd1jdjimga6ifo7b0kv7bqfj9750lbk3@4ax.com... >>>>>>>>>> Gentlemen, >>>>>>>>>> >>>>>>>>>> This is an exam question that trips up even some of the best >>>>>>>>>> students. >>>>>>>>>> See what you make of it! >>>>>>>>>> >>>>>>>>>> Q: Is this statement correct: 'The signal level at the modem input >>>>>>>>>> increased by 2dBmV going from +3dBmV to +5dBmV.' >>>>>>>>>> >>>>>>>>>> Your pal, CD. >>>>>>>>> >>>>>>>>>Changing a signal level can be thought of as multiplying the signal >>>>>>>>>by >>>>>>>>>a >>>>>>>>>constant. >>>>>>>> >>>>>>>> You can change something by adding, too. >>>>>>>> >>>>>>> >>>>>>>I haven't looked at it in detail but a bit of playing with a search >>>>>>>engine >>>>>>>finds the question here: >>>>>>>https://broadbandlibrary.com/wise-and-mighty-decibel/ >>>>>>> >>>>>> >>>>>> Jeez, when I said, "No Googling" I didn't seriously think anyone here >>>>>> would be dumb enough to need to actually do so! :-D >>>>> >>>>>I don't see any mention of any search engine in your first post. >>>>> >>>>>I tend to agree with John Larkin on this. >>>>> >>>>>If a student can use a meter to see that a signal which was 3 somethings >>>>>is >>>>>now 5 somethings (depending on what is being measured) then I give them >>>>>a >>>>>pass. >>>> >>>> So going back to the orginal question as stated, you're saying the >>>> statement in quotes is *correct* then. Nice to have a straight answer. >>> >>>If you mean that do I think that something increases by 2 when it goes >>>from >>>3 to 5 then yes that seems reasonable to me. >> >> I'm afraid that's not exactly the question, though. >> Here's what was asked again: >> >> Q: Is this statement correct: 'The signal level at the modem input >> increased by 2dBmV going from +3dBmV to +5dBmV.' >> >> You've already nailed your colours to the mast with your opinion that >> the statement is correct. Are you happy with that or would you like to >> change your mind? > >What's wrong with the mind I already have? > >My opinion is in my first reply to you. > >Do the students who take this exam do any practical work or just sit in >class? They're students so of course they don't do anything useful.