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fishmech posted:the one person i know who's actively kept it is a dude who travels across the country by car for some service thing, all over rear end-end nowhere places with cell service too unreliable for internet streaming and where the only terrestrial radio is the conservative talk radio, the two jesus stations, and a corporate country station. you found the edgiest of edge cases
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Jan 11, 2016 03:02
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fishmech posted:the one person i know who's actively kept it is a dude who travels across the country by car for some service thing, all over rear end-end nowhere places with cell service too unreliable for internet streaming and where the only terrestrial radio is the conservative talk radio, the two jesus stations, and a corporate country station. as a person who once was this person driving long trips for work several hours a day and losing terrestrial radio stations constantly it is the poo poo they also used to include the online streaming for free but got wise to it and started adding a fee for that
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Jan 11, 2016 04:18
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wow an old school CGAtar
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Jan 11, 2016 04:26
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Silver Alicorn posted:wow an old school CGAtar i miss the old phone tech guy we subbed work out to at my old job. super nice guy and would take the time out from what he was working on and answer questions about the phone system and wiring. it seemed to me like a lot of the landline peculiarisms and various handling systems you could only learn in the field with a senior tech we were renovating a building and he laughed when he showed up because he originally did all of the wiring in that particular unit
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Jan 11, 2016 04:59
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Awia posted:who listens to the radio tho? i listen to the radio while i'm driving. easier than janitoring music on my ipod. OPB/NPR, local independent super-hippie station, local independent all-classical music, OPB (formerly community college) jazz, and then the FM "news"/talk radio for when i want to know if there's a big freeway pileup
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Jan 11, 2016 05:07
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minivanmegafun posted:also everyone I know who canceled xm/Sirius continued to have their car served for months/years afterwards, apparently they're not very good at deactivating receivers This happens in any media where they're selling ad space or access to third parties. They want to make sure that when they say, "We have X number of customers you'll be able to reach," that X is the largest number possible. The marginal cost of delivering content to a single user is often lower than the possible amount of value they can generate from that user. So deactivating all non-paying subscribers could actually cost them a tangible amount of money in revenue from third parties for advertising/access. This is why lots of magazines give away free subscriptions or end up continuing to deliver to non-paying subscribers.
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Jan 11, 2016 10:58
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ErIog posted:This happens in any media where they're selling ad space or access to third parties. They want to make sure that when they say, "We have X number of customers you'll be able to reach," that X is the largest number possible. The marginal cost of delivering content to a single user is often lower than the possible amount of value they can generate from that user. So deactivating all non-paying subscribers could actually cost them a tangible amount of money in revenue from third parties for advertising/access. eh im pretty sure this is a more direct sat radio issue. im pretty sure i read a 2600 article about getting free sat radio by turning off your service and keeping your receiver off for 6 months or some other tedious amount of time.
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Jan 11, 2016 12:44
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Trabisnikof posted:i read a 2600 article lmao
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Jan 11, 2016 12:49
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ErIog posted:This happens in any media where they're selling ad space or access to third parties. They want to make sure that when they say, "We have X number of customers you'll be able to reach," that X is the largest number possible. The marginal cost of delivering content to a single user is often lower than the possible amount of value they can generate from that user. So deactivating all non-paying subscribers could actually cost them a tangible amount of money in revenue from third parties for advertising/access. there's no advertising on satellite radio though
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Jan 11, 2016 13:45
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ahmeni posted:yeah it's mostly an Australian thing he's talking about because ATSC is the major tv distribution method in this country. it was p nice to start but they're slowly replacing channels from a single 1080 feed into a couple 720s because the only alternative is dropping $100+ a month for cable via the Foxtel monopoly DVB but I'm guessing that was just a brain fart also foxtel is only $25/mo for the pov pack now, but that also gets you crappy quality still probably better than OTA now that they waste 500 kbps for the phone&win channel and 700 kbps for the horse racing channel ~Coxy fucked around with this message at 14:01 on Jan 11, 2016 |
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Jan 11, 2016 13:58
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FrozenVent posted:there's no advertising on satellite radio though i have some bad news for you
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Jan 11, 2016 14:23
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Sweevo posted:lmao zines are cool ok
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Jan 11, 2016 17:38
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Trabisnikof posted:eh im pretty sure this is a more direct sat radio issue. im pretty sure i read a 2600 article about getting free sat radio by turning off your service and keeping your receiver off for 6 months or some other tedious amount of time. it's a broadcast medium, so activation and deactivation of specific receivers is (or was) handled by just rolling through the ESNs of all the receivers to be activated or deactivated on a side channel for x number of days after the activation or deactivation. outside that window, if the receiver had been activated, but shut off during the deactivation roll, it would remain active indefinitely
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Jan 11, 2016 19:19
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you'd think they'd just replace all the encryption keys on a regular interval and make the side channel continuously cycle through the current & next master encryption keys encrypted with each subscriber unit's unique key
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Jan 11, 2016 19:40
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yes, that would have been a better design, but remember xm and serius are janky crap from the turn of the century. to my knowledge they're still maintaining legacy compatibility with their old receivers too
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Jan 11, 2016 19:45
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fishmech posted:uk digital radio and us satellite radio end up with most channels using the same amount of quality, and it's real bad sirius/xm must use a loving terrible he-aac encoder then because apple's encoder @ 48-64 kbps vbr isn't bad at all. i mean you can tell that it's compressed, but i'd say it sounds on par with roughly 92 kbps aac-lc
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Jan 11, 2016 21:59
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Awia posted:who listens to the radio tho? People who work? Berp boop work doesn't count because they have to have their anime songs.
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Jan 13, 2016 07:27
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Farmer Crack-rear end posted:i listen to the radio while i'm driving. easier than janitoring music on my ipod. gently caress, being able to find kmhd by aimlessly tuning the radio while I'm driving is one of the main things I miss after moving from Portland to Seattle
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Jan 13, 2016 08:07
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are IMTS phones anachronistic enough for this thred? http://www.wb6nvh.com/Carphone.htm  
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Jan 13, 2016 22:58
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Jonny 290 posted:are IMTS phones anachronistic enough for this thred? Yes, for gods sake someone please talk about telephones again instead of xm radio or whatever
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Jan 14, 2016 04:00
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I have a land line because when earthquakes hit everyone in SF overloads the cell towers and you cannot place a loving telephone call to save your life but the land line is always fine.
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Jan 14, 2016 04:15
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rotor is an interesting anachronism
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Jan 14, 2016 04:15
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Jonny 290 posted:if you plug that dangling wire into one of those sockets and crank the big knob, it rings that phone wanna crank that knob
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Jan 14, 2016 04:16
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I worked on some old rear end ships where we still had sound powered telephones basically you'd have a dial where you chose which number you wanted to call (e.g. 1 was the bridge, 2 engine room, 3 captain's room, etc etc) and a crank to make it ring. then you held a button down and spoke in this heavy handset it was a single line shared across the ships so if you got lucky you could pick up and listen in on such riveting conversation as "hey good morning it's 3:30" or "generator 2 was running a bit hot so I took it off the board" the best thing with that though was if you mistakenly rang the captain at 3:00 when you meant to ring the engine room, you just flicked the selector to chief engineer, rang him too, and you could listen to the two having an argument over who woke up who (I never had the balls to do this)
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Jan 14, 2016 04:34
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FrozenVent posted:I worked on some old rear end ships where we still had sound powered telephones this sounds like a sweet system
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Jan 14, 2016 04:54
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rotor posted:I have a land line because when earthquakes hit everyone in SF overloads the cell towers and you cannot place a loving telephone call to save your life but the land line is always fine. verizon is working hard to rip up all their copper where they have fiber to make sure no one can reliably place phone calls ever again
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Jan 14, 2016 17:41
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Jonny 290 posted:are IMTS phones anachronistic enough for this thred? this is really interesting we threw away a bunch of radiotelephones designed for use with OLT (Offentlig Landmobil Telefoni) about two months ago when we cleaned the basement at the local ham radio club manual switching system, to receive calls you had to listen to a calling channel everywhere you went and then if someone called you an annoyed sounding lady would yell at you to switch to some other channel to take the call don't know if they allowed handovers at all, it would definitely require switching to the calling/operator channel to have them transfer it manually also if you wanted to call someone from a landline you'd better know roughly where they were, otherwise they'd have to try every transmitter in the county until they answered pretty sure they eventually added a selcal system, but i think that was around the time the glorious Nordisk MobilTelefoni system was introduced with ~digital~ in band signalling and automatic handover i'm not sure if all radios were duplex, but i have one which included duplex filters tuned to ~163 and 171 MHz
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Jan 14, 2016 22:14
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well that explains the phone handset with a button and an xlr looking connector on it that mysteriously appeared in the hackerspace it may be that exact goddamn model
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Jan 15, 2016 07:49
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longview posted:manual switching system, to receive calls you had to listen to a calling channel everywhere you went and then if someone called you an annoyed sounding lady would yell at you to switch to some other channel to take the call the Canadian coast guard will still (or at least they did a few years ago) patch phone calls through to marine radios for like fishermen and stuff. it's a duplex thing so you can listen in to the shore side of the conversation if you're not a nice person... and transmit over the other ship if you really want to be a dickhole anybody ever had to deal with fax polling?
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Jan 15, 2016 08:42
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Captain Foo posted:this sounds like a sweet system Sound Powered phones are sweet. And they're still heavily used on US Navy warships for just that reason.    So how sound powered phones work is one of the simplest electrical engineering concepts. Your voice causes a transducer to vibrate which generates an electrical signal, signal goes down a wire and the same style of transducer on the opposite end recreates your voice. No external power system required, its quite literally sound powered. Now in practice there are cool setups of these things and they're great for any sort of high reliability short range communication. What I've used consist of a three part system: Matrices, Growlers with Handsets, and Jacks and Headsets .  The Matrices are backbone. Mechanically they're simple, but they don't look it. When you have more than one phone you want to tie them all together. You could just wire an arbitrary number in parallel but that gets messy if you have grounds or more than one spot that wants to talk at once. So you connect them to a matrix, which is just a giant bank of on/off toggles. Each line coming in can be toggled onto any bus, and all the lines on a single bus become connected and can communicate. Have a grounded line? Toggle it off and the rest of the system is fine. Coordinating something complex? Toggle those lines to their own bus so everyone else can get on without interrupting it constantly.  This is a classic bakelite growler box and phone. All hail bakelite! The indestructible material of the future! Smash peoples faces and sheet metal with ease! Growlers are fun. They make an obnoxious warbling sound. This is the solution to how you alert someone since there is no power to ring a bell. You make your own electricity. You crank a handle which spins a dynamo and it sends raw noisy low voltage across the wire. Each location on the selector knob sends the growl to a different station. That can be quite a bit of fun depending on how you have it set up. This leads me to my favorite and most amusing setup for these things. Normally I figure most people would just have the phones on party lines for the few times they're needed. Now on a submarine we had two big party lines that were kept very formal and it worked great. But sometimes you just need to have those long drawn out conversations, for those we had something special. Each of the 16 station selector positions on the growler was turned into its own little matrix. So that any phone selected, for example, to station 9 would be connected to station 9 and through 9 all other phones also selected to 9. Made for on the fly conference calling and isolated 1 on 1's. But since the selector switch was now serving dual purpose as the matrix this left talking with a slight risk. The growler signal would also be transmitted over the voice line and should someone growl your station while you were using it you and your conversation partner would both be treated to an ear splitting howl. Etiquette required you check the line and announce beforehand that you were placing a call to prevent this. People tend to be too lazy for etiquette. Similar painful sounds could be made by holding the transmit button and smashing the phone on the nearest metallic object.  Phones can get intense. Multiple party lines for different services, directed lines, alert lines, lines which will be sent to an amplifier box and broadcast through loud speakers. Lastly are just the Headsets. Maybe not everywhere can have its own box. So you run strings of these heavy duty phone jacks to places of interest. They're aligned in the matrix to wherever you need them and you just plug in and go. The handsets and headsets themselves are just the two (generally interchangeable) transducers, a transmit button, and a little capacitive filter. Handsets are normally setup so that both the ear and mouthpiece are connected when the button is pressed, this prevents signal degradation from having all the handsets active on the line all the time. Headsets (In the navy at least) only transmit when you press the button but are always listening, as its assumed if you've plugged in the headset its for something you're actively participating in. Why go through all this trouble? Because its reliable in a way its very hard to convey in a meaningful way to people used to "reliable" technology. Loss of power, fire, emp, electronic jamming, they'll work until they're underwater.
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Jan 15, 2016 08:59
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Jonny 290 posted:are IMTS phones anachronistic enough for this thred? I'm the Home Roam Man.
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Jan 15, 2016 09:45
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M_Gargantua posted:Similar painful sounds could be made by holding the transmit button and smashing the phone on the nearest metallic object. usn_recreation.txt
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Jan 15, 2016 10:21
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FrozenVent posted:the Canadian coast guard will still (or at least they did a few years ago) patch phone calls through to marine radios for like fishermen and stuff. it's a duplex thing so you can listen in to the shore side of the conversation if you're not a nice person... and transmit over the other ship if you really want to be a dickhole pretty sure most if not all marine radio services offer radiotelephone calls still, but i've never had the chance to try it despite having a marine VHF license i have an old marine VHF which included some kind of selcall/ANI thing, not sure how that system worked, there was no DTMF pad on it so I assume it either auto-transmitter the subscriber ID to the operator or it worked as a selcall. it also included a nice handset with PTT button, which is always nice to have in general they also did duplex telephony over MF/HF, or at least the navy used to. I have an Elektrisk Bureau  HF transmitter and somewhat matching ITT Mackay receiver, the service and installation manual includes descriptions of how to wire it into the ships telephone system and what kind of duplex filters should be usediirc they did downlink around 1800 kHz and transmit around 2200 or so. no idea if that could be automatically connected or if the ships radio operator had to set it up with the land station operator a later version of the exciter module included a remote control connector to set the frequency, which suggests some degree of automation
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Jan 15, 2016 17:28
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some of the offices in the hospital complex my doctor's at have an emergency sound powered phone system to be used in case of emergency or the failure of their ip phones and backup pots phones
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Jan 15, 2016 17:41
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M_Gargantua posted:a freakin' sweet post
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Jan 15, 2016 18:04
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also if you take out the bit from a drill it'll fit just right on the axle of the growler box crank 👹longview posted:iirc they did downlink around 1800 kHz and transmit around 2200 or so. no idea if that could be automatically connected or if the ships radio operator had to set it up with the land station operator it's a giant pain in the rear end so the modern (gmdss) way to do it in theory is this: you place a DSC call to the other station with the frequency pair you want to use receiving station accepts the call and their receiver tunes to the frequency you talk in practice it goes like this: your friend emails you that he needs to test his loving gmdss you tell him to go gently caress himself he promises you a few drinks or whatever you check that the antenna is clear you turn on the loving thing it doesn't loving work the distress message alarm goes off you spend half an hour loving with it bumfuck egypt coast guard sends out a safety of shipping broadcast so the alarm goes off you type in the other guy's mmsi, which is like a bazillion digit it doesn't work the distress message alarm goes off (some random fuckhead acknowledging the earlier message) you accidentally trigger the distress call function and freak the gently caress out the urgent message alarm goes off but thankfully it's not from you you pull out the loving manual, which is a two inch think binder the distress message alarm goes off you throw the loving manual at a wall BEEP BEEP BEEP BEEP BEEP BEEEP BEEEEEEEEEEEEEEEP your friend has managed to send you a DSC call you acknowledge it poo poo you pushed the wrong button better start over the distress alarm goes off you pick up the sat phone and call your friend to tell him to go gently caress himself, seriously. fuuuuuuuuuuuuuuck anything more complicated than simplex bridge to bridge poo poo there's also some way to set up telex over radio using gmdss but I repressed those memories
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Jan 16, 2016 06:57
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radio faxes are cool though receiving those things was a loving art
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Jan 16, 2016 06:57
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mishaq posted:i like how between consumer voip running over internet connections with no qos and highly compressed cellular phone codecs, making phone call in 2015 is worse quality than 1990 HD voice / volte / whatever tmo uses is the bomb, first time I made a call with it was like  
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Jan 16, 2016 17:01
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I think calls made in hangouts sound way better but they were worse on my wifes phone apparently
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Jan 16, 2016 18:48
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FrozenVent posted:also if you take out the bit from a drill it'll fit just right on the axle of the growler box crank 👹 I'm lolling
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Jan 18, 2016 15:39
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