LPT: If you can hear them but they can't hear you, you're the one with the weak signal.

blov · · 507 次点击    
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<hr/>**评论:**<br/><br/>pjp2000: <pre><p>If I haven&#39;t moved from this 3 foot radius for the past 20 minutes of the call, and they&#39;re driving and all of a sudden they&#39;re saying &#34;hello hello can you hear me? I can&#39;t hear you&#34; I find this a little difficult to believe. </p></pre>bandalbumsong: <pre><p>Band: 3 Foot Radius </p> <p>Album: The Call</p> <p>Song: Hello Hello (Can You Hear Me)</p></pre>biscuitpotter: <pre><p>Hello Hello<br/> (Hola!)<br/> I&#39;m at a place called Vertigo!<br/> You&#39;re everything I wish I didn&#39;t know. Yeah you give me something<br/> I can feel! </p> <p>Just excited I remember that much since I haven&#39;t thought about that song in like 10 years and never listened to it on purpose even then. Don&#39;t worry, I know that&#39;s a different song. But I would totally listen to a band called 3 Foot Radius.</p></pre>u-ignorant-slut: <pre><p>You forgot Uno dos tres CATORCE!</p></pre>StuUllman: <pre><p>ONE TWO THREE FOURTEEN! Rules don&#39;t apply to U2</p></pre>u-ignorant-slut: <pre><p>I was just learning Spanish numbers when that song came out and it messed with me so much.</p></pre>dewiniaid: <pre><p>Supposedly there&#39;s a very quiet comment about them screwing up the counting immediately after, but it might be edited out for radio/etc.</p></pre>theWyzzerd: <pre><p>Now I have this stupid fucking song stuck in my head. </p></pre>biscuitpotter: <pre><p>You&#39;re welcome! I feel like the least I can do is give you an alternative song to be stuck in your head. </p> <p><a href="https://www.youtube.com/watch?v=MxA0QVGVEJw">How&#39;s this?</a> </p> <p>Promise it&#39;s not a rickroll or Vertigo. </p></pre>theWyzzerd: <pre><p>I haven&#39;t seen this before and it took every ounce of restraint within me to not burst out laughing hysterically from my cubicle the first time the chorus started. Thanks for bringing a smile to my face today.</p></pre>biscuitpotter: <pre><p>You&#39;re very welcome! Glad to hear it!</p></pre>R_Euphrates: <pre><p>Alternatively... <a href="https://youtu.be/93LJVlxzE_Q" rel="nofollow">https://youtu.be/93LJVlxzE_Q</a></p></pre>EpicWolverine: <pre><p>¿Dónde está?</p></pre>SeanTheTranslator: <pre><p><a href="/r/BandNames/new" rel="nofollow">/r/BandNames/new</a></p> <p>You&#39;re welcome.</p></pre>biscuitpotter: <pre><p>Hah, cool! </p> <blockquote> <p>Netanyahu &amp; The Tibetan Yahoos</p> </blockquote> <p>Brilliant.</p></pre>mdeezel: <pre><p>Yeah yeah yeah yeah yeah yeah yeah</p></pre>Broseidon16: <pre><p>You are awesome</p></pre>Avalire: <pre><p>This is a really good one.</p></pre>StuUllman: <pre><p>HELLOOOOOO HELLOOOOOO HELLOOOOOOOO IS THERE ANYBODY IN THERE?</p></pre>Skoier: <pre><p>You reminded me of <a href="https://www.youtube.com/watch?v=yZJyMclESEc" rel="nofollow">this song from Kim Possible</a> (Oh Boyz - Hello, Hello, Hello).</p></pre>TheWalkingG: <pre><p>Radio waves aren&#39;t stagnant; that just stand still and never move. </p> <p>The signals move around, bounce off of things, something moves and now you&#39;re not getting the same strength. Someone might have turned on an electronic device nearby and now the straight signal you were getting is now obstructed.</p> <p>That being said, if one person is driving around in a car, they are probably the ones getting a poor signal</p></pre>beforeagainagain: <pre><p>Read:</p> <blockquote> <p><em>There is a very good reason why you might be wrong......but you&#39;re probably right.</em></p> </blockquote></pre>NewToMech: <pre><blockquote> <p>There is a <del>very good</del> reason why you might be wrong......but you&#39;re right.</p> </blockquote></pre>FTWJewishJesus: <pre><p>Today in &#34;Completely useless FTFY&#34;</p></pre>TheWalkingG: <pre><p>The life of technology</p></pre>LeftistLittleKid: <pre><p>I&#39;m not entirely sure how this works, but there is a good chance of getting a bad signal after a decent one even though you haven&#39;t moved... </p></pre>Confthro: <pre><p>Maybe your bad signal only reached a certain shitty range and now it doesn&#39;t?</p> <p>Nice try cricket</p></pre>ImOnlyHereToKillTime: <pre><p>Electrical engineer here. OP is right. What you&#39;re describing is something different.</p></pre>htet_htet: <pre><p>Would you mind giving me a ELI5 please?</p></pre>PM_ME_CHUBBY_BOOBS: <pre><p>Hello? Hello? Sorry OP I think you have a bad signal </p></pre>KitKhat: <pre><p>We get signal.</p> <p>What?</p> <p>Main screen turn on.</p></pre>Stanza1911: <pre><p>How are you gentlemen</p></pre>ChocolateSeuss: <pre><p>Someone set us up the bomb</p></pre>biscuitpotter: <pre><p>This is the second time in like a week I have seen &#34;someone set us up the bomb.&#34; The line is &#34;somebody set <strong>up us</strong> the bomb.&#34; </p> <p>Kids these days.</p></pre>Tianoccio: <pre><p>What happen?</p> <p>Someone set up us the bomb</p> <p>What you say?</p> <p>We make contact</p> <p>Main screen turn on</p> <p>How are you gentlemen?</p> <p>All your base are belong to us.</p> <p>You are on the way to destruction.</p> <p>You have no chance survive make your time.</p></pre>biscuitpotter: <pre><p>Take off every zig!</p> <p>Also, <a href="https://www.youtube.com/watch?v=qE6emvdmg-M">for your viewing pleasure</a></p></pre>IsThatWhatSheSaidTho: <pre><p><a href="https://youtu.be/8fvTxv46ano">I prefer this one</a></p></pre>biscuitpotter: <pre><p>The classic, of course! </p> <p>I was operating under the <del>probably</del> definitely incorrect assumption that everyone&#39;s seen that. </p></pre>fledglinging: <pre><p>Thanks, I enjoyed that</p></pre>ChocolateSeuss: <pre><p>&#34;Kids these days&#34; Nope, just an adult with a bad memory before coffee. </p></pre>NoraaOnReddit: <pre><p>Adults before coffee these days.</p></pre>ChocolateSeuss: <pre><p>This guy it gets.</p></pre>biscuitpotter: <pre><p>Was actually pretty sure you were an adult. Don&#39;t know any kids who&#39;d know the reference at all. </p></pre>HelloZeStrokes: <pre><p>HAHAHA </p></pre>Pure_Reason: <pre><blockquote> <p>kids these days</p> </blockquote> <p>Holy shit, this meme is like 20 years old. <strong>What happen?!</strong></p></pre>codear: <pre><p>It&#39;s OP!!</p> <pre><code>How are you gentlemen!! All your signal are belong to us. You are on the way to destruction. </code></pre></pre>ShuRugal: <pre><p>Take off! Every Repeater!</p></pre>6502man: <pre><p>OP please explain. I would expect that because phones are full duplex devices (different frequency for sending audio and recieving audio), either phone having a poor signal on one of the two frequencies will cause the same effect. </p></pre>dalgeek: <pre><p>With mobile devices, the base station has more transmitting power than the mobile station, so the phone can &#34;hear&#34; the base station from a greater distance than the base station can hear the mobile device. At a certain range, you&#39;ll still be able to hear incoming audio but nothing you say will make it back to the base station.</p></pre>milkysniper: <pre><p>Then you have great signal, it&#39;s the tower that&#39;s getting poor signal</p> <p><em>i know it&#39;s a pedantic detail I just like to help people yell at towers</em></p></pre>Tocoapuffs: <pre><p>/#towersaredumb</p></pre>FkIForgotMyPassword: <pre><p><a href="/r/idiotsyellingatthings">/r/idiotsyellingatthings</a></p></pre>I_want_to_be_funny: <pre><p>Hope... destroyed.. </p></pre>itsnathanhere: <pre><p><a href="/r/idiotsfightingthings" rel="nofollow">/r/idiotsfightingthings</a></p></pre>creepbg: <pre><p>I really wanted this to be a thing... </p></pre>Sik_Against: <pre><p>It is now!</p></pre>margravechristophe: <pre><p>But it&#39;s still such empty :(</p></pre>bjerwin: <pre><p>so fix that</p></pre>Firefighter_97: <pre><p>I&#39;m sad that&#39;s not a sub :(</p></pre>NotGouv: <pre><p>Stupid long neck buildings</p></pre>Tianoccio: <pre><p>What are your feelings on windmills?</p></pre>milkysniper: <pre><p>You are constitutionally protected to yell at any standing structure you might like my friend </p></pre>RhinoNamedHippo: <pre><p>This guy knows his rights:</p> <p><a href="https://m.youtube.com/watch?v=KqRPOEa3P44" rel="nofollow">https://m.youtube.com/watch?v=KqRPOEa3P44</a></p></pre>Ximbot: <pre><p>Armor, a horse and a lance</p></pre>mcapozzi: <pre><p>This is known as the ”hidden node&#34; problem. This is why super powerful transmitters are a bad idea with cell and Wi-Fi networks.</p></pre>milkysniper: <pre><p>The hidden node problem is due to network propagation not signal strength</p> <p>Here is the excerpt of interest:</p> <blockquote> <p>The problem is when nodes A and C start to send packets simultaneously to the access point B. Because the nodes A and C are out of range of each other and so cannot detect a collision while transmitting, Carrier sense multiple access with collision detection (CSMA/CD) does not work, and collisions occur, which then corrupt the data received by the access point. To overcome the hidden node problem, RTS/CTS handshaking (IEEE 802.11 RTS/CTS) is implemented in conjunction with the Carrier sense multiple access with collision avoidance (CSMA/CA) scheme.</p> </blockquote> <p><a href="https://en.m.wikipedia.org/wiki/Hidden_node_problem" rel="nofollow">https://en.m.wikipedia.org/wiki/Hidden_node_problem</a></p></pre>smokesick: <pre><p>Now where is <a href="/r/towersrights" rel="nofollow">r/towersrights</a> when you need it...</p></pre>thelastdeskontheleft: <pre><blockquote> <p>I just like to help people yell at towers</p> <p>milkysniper</p> </blockquote> <p>hmmmmm</p></pre>blasphemous_aesthete: <pre><p>Base station has more power - seems legit. But the channel may be undergoing a deep fade in the receiver&#39;s downlink due to which the signal is too erroneous to be successfully recovered, resulting in the handset discarding the frames altogether? Particularly if the Base station is using a higher modulation scheme and possibly when you are moving fast.</p></pre>sativo8339: <pre><p>I&#39;d tell you a joke about UDP.. but I don&#39;t know if you&#39;d get it.</p></pre>blasphemous_aesthete: <pre><p>Try TCP. OP, would you like to hear a TCP joke?</p></pre>virgnis: <pre><p>Yes, I would like to hear a TCP joke </p></pre>blasphemous_aesthete: <pre><p>Ok. I&#39;ll tell you a TCP joke.</p></pre>virgnis: <pre><p>Great, please tell me this TCP joke. </p></pre>blasphemous_aesthete: <pre><p>Ok. Are you ready to hear a TCP joke?</p></pre>virgnis: <pre><p>Yes, Im ready to hear a TCP joke. </p></pre>iruleatants: <pre><p>I want to hear this TCP joke.</p></pre>RuthLeeLikesBBC: <pre><p>I&#39;m OP. I would like to hear a TCP joke.</p></pre>blasphemous_aesthete: <pre><p>Ok. I&#39;ll tell you a TCP joke.</p></pre>Sigma69buffalo: <pre><p>Very clever</p></pre>Warrax1776: <pre><p>Is there a button upvote an entire subsection of comments? I nearly snorted out my coffee laughing, because I read this on break from teaching a networking class.</p></pre>blasphemous_aesthete: <pre><p>It&#39;s an old joke I read first on reddit only. Just doing my pilgrimage :)</p></pre>ledonu7: <pre><p>Is this where you repeat yourself until I get it?</p></pre>DragonBank: <pre><p>You have been error checked my friend.</p></pre>smokesick: <pre><p>Perfect <a href="/r/programmerhumor" rel="nofollow">r/programmerhumor</a> comment example!</p></pre>frothface: <pre><p>Took me way too long to get it. That might be a pun, I&#39;m not sure anymore.</p></pre>jaymzx0: <pre><p>OP, can you send the TCP joke again?</p></pre>nekowolf: <pre><p>Why did TCP get divorced? His wife got sick of him asking for a three-way.</p></pre>mcapozzi: <pre><p>When there is a failure, the data packets should be retransmitted at a lower modulation until the success rate is high enough to allow the transmitter to adapt back to a higher order modulation. Adaptive modulation is key to all types of wireless communication.</p></pre>blasphemous_aesthete: <pre><p>Agreed, but that is not the luxury of real time communication like voice calls. </p></pre>mcapozzi: <pre><p>There is no such thing as real time, voice packets on LTE (VoLTE) are treated the same as VoIP packets on a traditional IP network. They may be prioritized, but they are data nonetheless and are subject to the same FEC, BEC, and retransmit capabilities. This happens fast enough to keep the conversation going, usually. The key is that the packets are small and usually can be rebuilt using the error correction built into the hardware to avoid a retransmit hiccup.</p></pre>Souent: <pre><p>Logically that makes sense, interestingly in practice I&#39;ve seen the opposite.</p> <p>I have a 4g hotspot that we use for mainline internet access. I&#39;m touching a lower power base station that is mounted on top of a grain elevator over 3 miles away. Needless to say my signal is erratic, but when I do have signal it is high quality (low power/signal, but when connected very little loss). Quite often my downlink will almost completely cut out. Interestingly, if I have an active voip or data stream session my uplink will continue but my downlink is completely interrupted. </p> <p>I know op&#39;s topic is on voice rather than data transfer but its point-to-point communication on the same band.</p></pre>dalgeek: <pre><p>Of course there are many other factors that affect wireless communication. The base tower is going to transmit at the same power regardless, but your mobile device may increase power while transmitting data, which is why it tends to hang on to the connection better when you&#39;re using it (also why your cell phone drains faster if you&#39;re in a low coverage area, it has to talk louder to reach the base station).</p></pre>gururamen: <pre><p>This doesn&#39;t sound right. AFAIK, the base station is continuously modulating its output power for a particular connection based on the strength of the signal received from the phone, in order to minimize interference with other calls (though I think modulation schemes like CDMA are the primary way of avoiding interference). Anyway, what would the purpose be of transmitting with more power than the phone?</p></pre>karmawhorepointerout: <pre><p>OP is wrong, most people in this thread are describing a case where one person has excellent signal and the other has weak signal. This is not always the case and there is no reliable way to determine the entirity of signal circumstances by call quality alone.</p> <p>LPT: Your phone has a signal strength indicator. If your indicator shows low strength, you&#39;re the one with the weak signal. </p></pre>kryptkpr: <pre><p>Don&#39;t trust RSSI too much, it&#39;s a received power number not a SINR indication. There could be interferes blasting on the same channel raising RSSI but dropping SINR to below what your phone can recover the bits out of. </p></pre>Green_Bay_Guy: <pre><p>So, this is actually my job. To identify network related issues. This COULD be the case in some situations, but one-way audio can be caused my a multitude of things. I just had a ticket that was due to the cell tower hardware. There was a fault in one sector, and it was causing the issue. I also see hardware issues, especially with &#34;waterproof&#34; phones. Poor service areas typically lead to bad quality on both ends. Bad hand-off areas can cause this too.</p></pre>6502man: <pre><p>Interesting, thanks. I work in electronics and I understand how technically complicated RF work can be. I can never help but think these sort of concepts are over-simplified :-)</p></pre>Green_Bay_Guy: <pre><p>Really, I&#39;m a professional guesser in a lot of situations, especially when the issue resides on a partner network. Also when some device manufacturers are unwilling to assist identify a device specific issue.</p></pre>notLOL: <pre><p>Op lies. I&#39;m calling from a landline. But technically speaking the love connection is probably bad and I should work it out or break up with her if she does that. </p></pre>Pennis_The_Menace: <pre><p>Guess you gotta lawyer up and hit the gym</p></pre>fieldpeter: <pre><p>My SO is roadtripping in very low sognal area. We have been calling each other daily at least...quite often she could not hear me but i could hear her even though i was calling from a landline...i think your explanantion is oversimplfying things </p></pre>PeppersMagik: <pre><p>OPs advise is a good rule of thumb but far from fact. There is a lot more that goes into it. </p></pre>molrobocop: <pre><p>Yeah, I&#39;d like to know why when I&#39;m using wifi calling, I apparently break up when taliking to someone sometimes. My signal connection is strong.</p></pre>WeeferMadness: <pre><p>That issue could be caused by a LOT of factors. VoIP calls suffer due to high latency and network traffic all the time since they have no error correction. Basically they send out the information constantly and don&#39;t really care if it all gets there or not. If the router you&#39;re using isn&#39;t up to the task, or there&#39;s anything strange going on within the internet on the route you&#39;re using you&#39;ll have issues. It doesn&#39;t take much either.</p></pre>snoochiepoochies: <pre><p>Maybe your landline has poor signal. Have you tried using a shorter cord?</p></pre>ThereAreNoBadWords: <pre><p>That&#39;s not always true but hey, spread that misinformation like a plague!</p></pre>doorbellguy: <pre><p>Am from the front page, several thousands who won&#39;t bother opening the comments have already been misinformed.</p> <p>But then again that applies to most news articles as well.</p></pre>iAfterglow: <pre><p>Upload and download speeds are always different...</p></pre>rinmot: <pre><p>This sounds more passive aggressive than a LPT.</p></pre>-MURS-: <pre><p>They are all passive aggressive complaints nowadays. </p></pre>gfuller23: <pre><p><strong>if true</strong>, It&#39;s pretty useful for me actually. The other day I was talking to my mom on the phone and she started really breaking up. I wasn&#39;t sure if I should say something or wait to see if the signal issue resolved itself. Remembering that she has signal issues in her house and she likes to wander through it anyway, I had to decide if she would correct the issue on her own when hearing the connection issue, or if I should say something.</p> <p>This post <strong>would</strong> help because I would know (1) it&#39;s probably her fault, and (2) she might not hear anything wrong on her end at all, so I need to complain to her when it happens</p> <p>Just judging from all the other comments however, seems it may not be true.</p></pre>BoltonSauce: <pre><p>Look at the other comments. May be an oversimplification. Not much of an LPT.</p></pre>legosexual: <pre><p>Downvoting this because OP fails to explain why he thinks this is true and most top comments are refuting his point. Don&#39;t just upvote shit because it sounds right guys.</p></pre>PageEnd: <pre><p>Ever time I see a useful LPT on the top page someone correct op. So they aret useful anymore =/. I belive life don&#39;t have pro tips</p></pre>Government__sachs: <pre><p>This is most LPTs now:</p> <p>This so called rule applied to one situation. Therefore it&#39;s a universal rule which everyone should follow and acknowledge. I&#39;m so smart and helpful.</p></pre>-MURS-: <pre><p>It&#39;s just complaining nowadays.</p> <p>lpt: don&#39;t ask a quiet person to talk maybe they&#39;re just shy</p></pre>MrSenator: <pre><p>This doesn&#39;t seem true. I used to drive back and forth a lot between DC and Ohio and there&#39;s a dead spot for my phone at multiple points. Each time the signal is about to go out it would sometimes be that I couldn&#39;t hear them and they could hear me, and sometimes it was the opposite.</p> <p>I drove that way so much I actually tested it with some friends because I needed something to help pass the time. </p></pre>powerneat: <pre><p>Is this a crosspost from <a href="/r/amateurradio">/r/amateurradio</a> ?</p></pre>ms360: <pre><p>OP didn&#39;t consider the problem could just be a S9+ noise level. </p></pre>bassiswhereitsat: <pre><p>It&#39;s not, but it should be!</p></pre>Kiakakash: <pre><p>This can&#39;t always be true. At my job, I have to make a lot of phone calls. Some days, everyone is cutting out and I have to ask them to repeat themselves. They can always hear us just fine, though. It goes on for a full day, people from all over and with different providers and signals, whether we called them or they called us.</p></pre>thestupidlowlife: <pre><p>Somehow this post got traction even though the author has no proof or explanation, nor a history of popular reddit posts? </p> <p>Also, this post is bullshit. Everyone I call from my place is consistently able to hear me fine but for some god damn reason, my mom is always saying &#34;YOU&#39;RE BREAKING UP&#34; &#34;I&#39;M SORRY I CAN&#39;T HEAR YOU&#34;</p></pre>pr0n2: <pre><p>Or their phone could be having trouble receiving data or there could be an asymmetric routing problem or an over utilized link along the path. There are a million possible causes.</p></pre>ByrenKingson: <pre><p>How do you know this? are you just speculating?</p></pre>kwiltse123: <pre><p>Not only is this not universally true, the lack of explanation of what the fuck it refers to is maddening.</p></pre>Avery1718: <pre><p>Yeah, or simply their headphones/speaker is in bad shape and their mic works properly.</p></pre>SafetyDanceInMyPants: <pre><p>My boss is convinced this is the case -- that while he&#39;s driving around in some forgotten part of the Northeast, I&#39;m the one with the bad connection. But, man, I&#39;m on a landline in the office...</p></pre>walmartsucksmassived: <pre><p>What if they&#39;re deaf?</p></pre>Tocoapuffs: <pre><h1>WHAT?</h1></pre>Slutha: <pre><p>-Aku</p></pre>kodemage: <pre><p>texting works at a much longer range than voice calls actually</p></pre>Metal-Phoenix: <pre><p>Really? You think? How is this a &#34;pro&#34; tip? More like <a href="/r/LifeMediocreTips">/r/LifeMediocreTips</a>.</p></pre>DeliciousFeet: <pre><p>Does this apply to face to face too? I mean talking in person.</p></pre>viscountsj: <pre><p>Yeah, if you can hear their face, but they can&#39;t hear your face, you have weak signal.</p></pre>doctorblumpkin: <pre><p>You mean when making comments on my &#34;my face board&#34;</p></pre>imakesoundsandstuff: <pre><p>Wow I totally took this as a deeper meaning haha. Pushing for your goals and the struggles that come along with them of not being recognized. &#34;I hear them, and see what&#39;s going on, but for some reason they can&#39;t hear me or choose not to for whatever reason&#34; must be louder. Must make bolder moves. </p></pre>lpreams: <pre><p>LPT: if you&#39;re in this situation, it almost certainly is a software glitch on one of your phones and has nothing to do with signal strength. You&#39;re better off hanging up, rebooting both phones, and trying the call again, rather than moving to find better reception </p></pre>Pm-me-gift-cardz: <pre><p>Gonna need some solid sourcing on this being such a catch all statement. A lady friend and I talk most nights and she consistently has poor reception on every phone call while I only have the issue when talking to her. The issue is always her voice is choppy or unrecognizable </p></pre>sneakerspark: <pre><p>LPT: Don&#39;t post stuff you don&#39;t know about. </p></pre>jamesual: <pre><p>Hang up, move on. Ain&#39;t nobody got time for that.</p></pre>doesntknowjack: <pre><p>Yeah, because when I&#39;m on a landline ave they can&#39;t hear me I have a bad signal. Unless I&#39;m missing something.</p></pre>FlickerOfBean: <pre><p>This is arbitrary. If half of the conversation can&#39;t hear he other, wtf does it matter anyhow?</p></pre>Ezpeazyjapaneezee: <pre><p>What if you want to solve a problem?</p></pre>FlickerOfBean: <pre><p>Are you gonna repair the cellular network?</p></pre>kickdrive: <pre><p>This is only true if it is a weak signal that is causing the issue. With the current state of mobility, VoIP, and the peripheral devices associated with them, many times sound issues are not related to the call itself. </p></pre>milhouse21386: <pre><p>I just switched cell service and now have terrible service at my house (probably switching again soon). Friend called me the other day, I kept saying hello? Couldn&#39;t hear anything from his end. I texted him after and he said he could hear me perfectly while I couldn&#39;t hear him at all. I don&#39;t think your statement holds up at all.</p></pre>Missioncode: <pre><p>This is such an over generalization that it really should be just removed. </p></pre>Scazzz: <pre><p>Not even remotely true. Almost all times if there is an issue with sound and it&#39;s only on one end, it&#39;s usually a hardware failure at 1 of 4 points; either on the sending ends microphone or antenna, or receiving ends antenna or speaker. </p></pre>Red-Eat: <pre><p>&#34;It&#39;s not you, it&#39;s me.&#34;</p></pre>Lancaster61: <pre><p>As someone who works on radio frequency technologies, every part of this makes sense. However it&#39;s something I never thought of for cell phones until this post.</p> <p>I don&#39;t know why it never crossed my mind that consumer electronics exist in the same physical world with the same physics as enterprise equipment.</p> <p>I feel like an idiot -_-</p></pre>Rimoelkutje: <pre><p>That&#39;s bullshit. There can be a lot more reasons for one way audio than only &#34;bad signal&#34;</p></pre>maffick: <pre><p>Bullshit, there are tons of factors you aren&#39;t considering.</p></pre>thekeffa: <pre><p>VOIP engineer here. This is very rarely true.</p> <p>First of all, it&#39;s a common misconception that cellular towers broadcast with more power than the phone handset does. Believe it or not, it broadcasts at the exact same power. This is necessary to avoid something called half-duplex communication, which is basically when only one side can transmit audio to the other. If the cellular tower was able to broadcast at a much further range than the device, this would happen all the time.</p> <p><a href="http://imgur.com/a/8X0dM" rel="nofollow">This graphic I made</a> for <a href="https://www.reddit.com/r/explainlikeimfive/comments/5ibjmc/eli5_if_cell_towers_need_lots_of_power_to_send/db7n0fk/" rel="nofollow">another post similar to this subject</a> gives a visual explanation of why the tower and the device broadcast to each other with the same amount of power.</p> <p>What that means is if the tower&#39;s antenna is able to talk to your phone, your phone&#39;s antenna is very capable of talking back to it.</p> <p>Secondly, modern cellular communications are encrypted (Even if it&#39;s pretty trivial to break it). That means above all else, the communication is digital, not analogue (Where the situation OP describes might become true). Your voice is transmitted as a collection of 1&#39;s and 0&#39;s. If there is trouble with the transmission, this manifests itself very differently to how analogue transmission works and so it is rarely the case that signal strength plays a part in this any more. Above all else though there&#39;s a simple rule with digital communication. If all parts of the transmission power are equal (Which they are in a cellular handshake) then if you can receive, you can send.</p> <p>In other words if you can hear them, there&#39;s absolutely no reason why they cannot hear you in a digital exchange.</p> <p>Now it sounds like I am repeating myself there but actually there&#39;s a subtle difference. Digital transmission knows when something has gone amiss, analogue transmission does not.</p> <p>The reasons why one side of the phone call can hear the other but not vice versa are vast and complex but the most common reason is scatter. Scatter occurs when a radio signal does not arrive back to the receiving station properly. This can be for a multitude of reasons but most common are things getting in the way of the radio signal like buildings, trees, hills and so on. The strength of your signal is basically a measurement of how efficient radio communication is occuring between your cellular phone and the tower and it does not always reflect the effect scatter is having on it because you can have permanent and temporary scatter.</p> <p>You could have a perfect 5 bars of signal and suffer from horrendous scatter on a phone call, then make a second phone call and it be perfect. Equally you can have 1 of 5 bars of signal and have an absolutely fine conversation because there is no scatter effect.</p> <p>Of course at this point we are totally leaving out scenarios such as high processing overload on the tower/network of one of the callers and a multitude of other things that have nothing to do with your phone signal.</p> <p>So in short no, it&#39;s not because you&#39;re the one with the weaker signal.</p></pre>asap3210: <pre><p>If they can hear me, but I can&#39;t hear them, how can they tell me? And most important, who are they? why is there a bunch of people calling me at this annoying hours? We all deserve some sleep, for heaven&#39;s shape. </p> <p>Yes, shape! what is the problem? Are you one of THEM? truly, you seem one of THEM. Always knocking on my door, asking for you know what!! Annoying people</p> <p>So yes, basically I am the one with weak signal</p></pre>GeenMachine: <pre><p>Or, you have your phone on mute. When you hear hoof sounds, think horses not zebras.</p></pre>SoNotTheCoolest: <pre><p>I mean I check if I&#39;m muted just in case, but I&#39;d say in the history of mobile phones a bad signal is the horse, not the zebra. </p> <p>Also I don&#39;t think OP meant they can&#39;t hear you at all, just if the call is breaking up</p></pre>dinahsaurus: <pre><p>Or, when you put packing tape over your shattered screen to prevent slicing your fingers, you also covered the speaker.</p></pre>punriffer5: <pre><p>No your signal is weak... don&#39;t pick on me</p></pre>SIRPORKSALOT: <pre><p>Is this like a metaphor for life with some deeper meaning that I&#39;m too dull to grasp?</p></pre>Toshiba1point0: <pre><p>This is like the mental health tip. 1 in 4 experience mental illness. Take a look at 3 people you know. If it&#39;s not them it&#39;s you.</p></pre>reasonoverreaction: <pre><p>No. Upband and downbandwidth arent the same</p></pre>liquoriceBeard: <pre><p>is this a metaphor?</p></pre>LVbyDcreed72: <pre><p>On the phone. No metaphor. </p></pre>StrangeYoungMan: <pre><p>Does this apply to walkie talkies as well</p></pre>codebluefox: <pre><p>I called my grandpa&#39;s landline from my cell phone and had full bars, but he couldn&#39;t hear me. I was in my apartment and haven&#39;t had issues before. Can you explain why he couldn&#39;t hear me?</p></pre>ijohno: <pre><p>Can you hear me now??</p></pre>Byron-Black: <pre><p>I go for listening to how things sound rather than what people say they can hear. Listen for noise artifacts (static, half cut off ring) during the ring. If the ring is bad, hang up and try again.</p></pre>OrangeOakie: <pre><p>How dare you suggest that I&#39;m weak if a deaf person can&#39;t hear me =(</p></pre>lampotron: <pre><p>Upstream and downstream. Both must be at acceptable levels for proper communication.</p> <p>What can cause signal impairments? Your environment. If your having issues, move to a different part of the house. Or away from powerlines, com towers, large metal buildings, big antennas, etc. Neighboring channels that have high amplitude could degrade your signal quality.</p></pre>lucidone: <pre><p>ITT: nobody knows what the fuck they&#39;re talking about.</p></pre>sco360: <pre><p>This helps me how?</p></pre>silverlight145: <pre><p>This goes for sex too. </p></pre>DavidCanMooCanU: <pre><p>It&#39;s sometimes the opposite on teamspeak and discord tho </p></pre>hillsidehippie: <pre><p>My wife&#39;s antennae must need replacing. </p></pre>SnailNip: <pre><p><a href="/r/amateurradio" rel="nofollow">r/amateurradio</a> can help here. -73.</p></pre>bioethicists: <pre><p>This can be interpreted as very deep</p></pre>HighZenDurp: <pre><p>This is a very inaccurate statement. This message implies that is that if you cannot hear somebody on the phone, 100% of the time it is that person&#39;s fault and that&#39;s simply not true. </p></pre>GloriousComments: <pre><p>Similarly, if you live in an apartment and can hear your neighbor yelling &#34;Shut the fuck up!&#34;, they can probably hear you fucking at 1:40 AM.</p></pre>NotFromCalifornia: <pre><p>Just because I&#39;m quietly hiding under her bed doesn&#39;t mean that I have bad signal.</p></pre>Quantumm123: <pre><p>WiFi calling is a lifesaver</p></pre>danwasoski: <pre><p>This is very inaccurate as a representative from a cell phone store there are numerous reasons</p></pre>everypostepic: <pre><p>That&#39;s really weird, because we were face to face. MAYBE you should mention that in your tip.</p></pre>yendak: <pre><p>I wonder why nobody ever had the idea to invent some lifesign signal on mobiles.</p> <p>When you drive with a subway, it&#39;s always the same:</p> <p>Person is on the phone. </p> <p>You enter the tunnel and the person goes &#34;Hello? Are you still there?&#34;</p> <p>Then the person takes a look at the phone and tries it again.</p> <p>Then the person gives up and hangs up.</p> <p>Why can&#39;t there be some kind of tone to signal when the connection got lost?</p></pre>FiercelyFuzzy206: <pre><p>What pisses me off uncontrollably is when talking via mic on something like Discord/skype/teamspeak and someone says &#34;I can&#39;t hear you, turn up your mic&#34;.</p> <p>Yes....you can turn it up somewhat (by adding boost) but 9/10 it&#39;s either YOU who needs to turn it up or it&#39;s just a bad mic.</p></pre>ballingundercontrol: <pre><p>Correction** You&#39;re the one with AT&amp;T.</p></pre>

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