Path: ...!news.misty.com!weretis.net!feeder6.news.weretis.net!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!nnrp.usenet.blueworldhosting.com!.POSTED!not-for-mail From: "Edward Rawde" Newsgroups: sci.electronics.design Subject: Re: A Complex Metaphysical Conundrum Date: Wed, 10 Apr 2024 21:10:59 -0400 Organization: BWH Usenet Archive (https://usenet.blueworldhosting.com) Lines: 64 Message-ID: References: Injection-Date: Thu, 11 Apr 2024 01:11:01 -0000 (UTC) Injection-Info: nnrp.usenet.blueworldhosting.com; logging-data="41463"; mail-complaints-to="usenet@blueworldhosting.com" Cancel-Lock: sha1:0ZhUZ2sv9N0x5O6SomWm2nHR6OM= sha256:P6OCzyIU6FZaLpmcJClyfjZLWhBvdgE7icEe/4tkozk= sha1:3Bb8e2SUnH9EoqniU+7bGTeC9Ss= sha256:09CjYaUmVmp8cQgjNW42TBJzs8tTlqcb/brxKCc8e/c= X-MSMail-Priority: Normal X-RFC2646: Format=Flowed; Original X-Priority: 3 X-Newsreader: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Bytes: 3668 "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. You can also multiply it by 5/3 to get the same effect if you want. I don't mind.