Path: ...!news.mixmin.net!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 19:38:25 +0100 Organization: A noiseless patient Spider Lines: 106 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 20:38:26 +0200 (CEST) Injection-Info: dont-email.me; posting-host="3ee569d00c4084ce2e4c35b0d486ea2c"; logging-data="1940905"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19ZL1DBD7eBcNhiatZVrb6t3nLGUtvOjeI=" User-Agent: ForteAgent/8.00.32.1272 Cancel-Lock: sha1:2TjTFw8ro2PiwplWOTMQwM5Vrw4= Bytes: 5351 On Thu, 11 Apr 2024 14:02:56 -0400, "Edward Rawde" wrote: >"Cursitor Doom" wrote in message >news:pk8g1j9u6joiofssfcg9g9qed1lcikluta@4ax.com... >> 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. > >Is that because you don't teach them how to do anything useful or because >they don't want to be taught how do anything useful? > Sorry, you're new here so you don't know who's who yet. I'm not a professor - far from it! And these are hypothetical students.