- what type of fitting or connection is this? - 1 Update
- Just curious how far your Wi-Fi access point is from your desktop computer - 7 Updates
- Analogue datapot - 6 Updates
| Jim Horton <jhorton@nospam.net>: Oct 23 12:11PM -0400 Please see image with description. Not sure what it is called, but I need some. Thanks. https://i.imgur.com/q8Us848.jpg |
| Arlen _G_ Holder <_arlen.george@halder.edu>: Oct 22 06:39PM On Tue, 22 Oct 2019 05:07:14 -0700, Johann Beretta wrote: > dBi = power ratio in reference to an isotropic transmitter. (isotropic > is equal in all directions) > mw = milliwatts (1/1000 of a watt) Hi Johann Beretta, Thank you for those decibel & milliwatt clarifications, where the members of the chosen newsgroups likely have pretty good comprehension of the math. o <http://tinyurl.com/alt-internet-wireless> o <http://tinyurl.com/alt-home-repair> o <http://tinyurl.com/sci-electronics-repair> What's nice is that our conversation showing how easy it is to extend the range of WiFi is 'permanently' archived in the typical web searchable sites such that others can benefit from the information you and I and Jeff Liebermann shared, now, and long into the future. o <http://alt.internet.wireless.narkive.com> o <http://alt.home.repair.narkive.com> o <http://sci.electronics.repair.narkive.com> I consider my main shared "item of technical value" was simply that... A. People _can_ obtain this "instant extended range" B. Relatively easily (by plugging these devices into RJ45 ports) C. At "about" the same cost as they pay today for less powerful devices For example, plugging a properly configured PowerBeam horn into a laptop <https://i.postimg.cc/vT0Krpfc/laptop-nanobeam-horn.jpg> instantly provides the laptop with a powerful bridge to WiFi access points. Just as plugging in that same horn into your spare old router would instantly & vastly extend the range of otherwise unused router, would it not? (Focus on range, as speeds are limited to the slowest device.) <https://i.postimg.cc/25NdBZ7f/horn-to-router.jpg> And, while I've never tried it, I don't see any reason plugging that horn into the back of a "dumb switch" wouldn't also turn it into a powerful omni access point, do you? <https://i.postimg.cc/JhyCRT69/horn-to-switch.jpg> Since I haven't tried the switch idea, I'd ask others here who have o Wouldn't all those arrangements work to instantly "extend the range" (where extending the range of a switch is to add the access point). -- Usenet is a public potluck where adults share their knowlege & experience. |
| Arlen _G_ Holder <_arlen.george@halder.edu>: Oct 22 09:18PM On Tue, 22 Oct 2019 04:29:00 -0700, Johann Beretta wrote: > kilometer, draws about 10 watts. You think an RV battery can handle > that? You're the expert. You think a 40 or 50 amp-hour battery can > handle a 10 watt draw? This is the FIRST statement you've made in the post I'm responding to, Johann, that indicates you can post valuable information with purposefully helpful intent - which I appreciate - on behalf of Usenet archives. The reason I asked you is that question is that, as I had stated prior, I have no experience with running these devices off the grid, but where I know the WISP professionals have solar-charged battery backups at many of their remote sites. Given I have no experience running these devices off the grid, I'm not sure if the WISP professionals run these devices directly off the 12VDC though, or via inverters, as with the case of the RV, I'm not sure if pjp could run off the inverter or off the battery itself, as, I said, I have no experience running these devices off the grid. Assuming 1 amp at 12 volts DC (i.e., 12 Watts), the question is how long can an RV battery realistically hold out. I never owned an RV, so I don't even know how large they are, or how many they have, so, googling, the first hit was this "Basic RV Electricity" o <https://rvservices.koa.com/rvinformation/rvmaintenance/basic-rv-electricity.asp> o <https://www.outdoorsy.com/blog/rv-electricity-basics> I only skimmed those RV basics, as I was just looking for the amp hour rating of the typical batteries. Searching Amazon for RV batteries, this "WindyNation" 100amp-Hour battery shows up a lot so let's start with that for now as a starting point: o WindyNation 100 amp-Hour 100AH 12V 12 Volt AGM Deep Cycle Sealed Lead Acid Battery - Solar RV UPS Off-Grid (1 pc 100 amp-Hour) <https://www.amazon.com/WindyNation-amp-Hour-100AH-Sealed-Battery/dp/B07BS1ZB15/> So, at 1 amp discharge rate, it seems that battery could last about 4 days in perfect situations, where, we have to leave a reserve (I assume, unless it's a spare battery) cutting that in half, and if we assume other non-ideal conditions, we can cut that half in half, so, it seems, given that battery, at a 1 amp discharge rate, it would last an entire day. I'm sure you'll let me know where my arithmetic is off, if it is off. o I love to be corrected with facts Adults do two things, which is why their belief systems are rational o Adults comprehend basic facts, and, o Adults form belief systems that can change if the facts change Do you concur that the arithmetic works out to 'about a day' of use? o If not, why not. Please act like an adult, and don't call it a "fucking battery" for example; just deal with the arithmetic please. Like adults should. > Then, if it works, you start dialing the transmit power down, on both > radios, until you get it is as low as possible where it still works. > Then maybe bump it up a few dbm's so it'll handle some rain. This is another useful adult observation, which will not only help others, but which will also remain in the Usenet archives 'permanently' (for whatever value of permeant the Internet can provide) such that others will find it useful in future searches. I agree with you that we don't have much of an idea of the foliage o And I agree, we avoid foliage if we can (usually with height) The good news is that height is possible at both ends, and, that there must be a slope involved since pjp mentioned the shot was "all downhill". Your advice to narrow the beam is apropos, as is your advice to test it out, which is what we do all the time out here (but we have a LOT of spare equipment, including a light tripod to mount the rockets to quite nicely). I do agree with you also that you start with full transmit power, and then you dial it down until it stops working, and then dial it back up for what I call "headroom" but which has a proper term. I generally seek about a dozen decibels of what I call 'headroom' (Jeff Liebermann more accurately discussed the terminology & calculations, including a table, in a prior helpful post elsewhere in this thread). Thanks for that purposefully helpful advice for pjp, which others can also benefit from, given Usenet is a potluck where we all bring items of value to share. -- Merriam Webster (Am)English definition of "potluck": o whatever is offered or available in given circumstances or at a given time <https://www.merriam-webster.com/dictionary/potluck> |
| Arlen _G_ Holder <_arlen.george@halder.edu>: Oct 23 12:00AM As an interesting, timely, & somewhat related aside, note this news today where people are going to what I'd consider a lot of trouble, just to extend WiFi by 200 feet: o BYU researchers extend WiFi range by 200 feet with a software upgrade <https://www.engadget.com/2019/10/22/wifi-onpc-protocol/> Notice that the EnGadget guys explain what levels people go to in order to extend WiFi range, by 67 meters "beyond the range of standard WiFi". Here's the lion's share of the proposal... (verbatim to the post end) "But researchers think there might be another way: a software protocol that extends the distance connected devices can send and receive WiFi by more than 60 meters. The researchers, led by Brigham Young Unviersity, have dubbed the protocol On-Off Noise Power Communication (ONPC). While WiFi typically requires speeds of at least one megabit per second to maintain a signal, the ONPC protocol can maintain a signal on as little as one one bit per second. That's one millionth of the data speed typically required. The protocol does this by allowing WiFi-enabled devices to send wireless noise as well as data. According to BYU, it allows the device to send a series of 1s and 0s, essentially turning on and off its signal in a specific pattern. That's enough to tell the WiFi router that the device is still transmitting something (even if no data is being received) and maintain the signal. "It's basically sending 1 bit of information that says it's alive," says Professor Neal Patawri of Washington University in St. Louis. When put to the test, the ONPC protocol allowed the researchers to extend the range of an off-the-shelf device 67 meters beyond the range of standard WiFi." -- It does have a cost advantage though, as presumably, it would be free. |
| Arlen _G_ Holder <_arlen.george@halder.edu>: Oct 23 04:59AM On Tue, 22 Oct 2019 19:45:06 -0700, Johann Beretta wrote: >> <https://i.postimg.cc/JhyCRT69/horn-to-switch.jpg> > I suspect that's exactly what it would do... And maybe we finally have a > legitimate reason for the 3dbm setting in the config file. Thanks Johann for confirming that it would probably work just fine to plug a spare omni PowerBeam horn into a spare switch to instantly add a powerful WiFi access point out of spare parts already lying around such as these I have on my shelf right now: <https://i.postimg.cc/XJChDCPr/spare-access-points.jpg> > For one, you need to configure it. LAN settings.. WAN settings.. You're > gonna need to disable AIRMax, which is on by default. You need to set > your WPA2 password/phrase and you, most certainly, need to set an SSID. That's all easy stuff, where I'd assess setting up these devices to be about the same complexity or simplicity as setting up a home router is. <https://i.postimg.cc/JhyCRT69/horn-to-switch.jpg> Basically, I've only used two different settings: o When I set it up like this, it's an instant access point: <https://i.postimg.cc/25NdBZ7f/horn-to-router.jpg> o When I set it up like this, it's an instant bridge: <https://i.postimg.cc/vT0Krpfc/laptop-nanobeam-horn.jpg> > picking up your signal at full bars means you've just fucked him out of > being able to use one of those three. Three neighbors can make wifi > miserable for all involved. As I said many times, we have 40 acre zoning out here, so if you have 79 acres, you can still only build one home on that entire property. Even so, proper setup is assumed, as there's no indication at this time that anyone wants to set it up any other way, just like when I buy a ski mask, the salesman can warn me once, twice, three times, four times, maybe even five or six or seven times not to rob banks using it. But after the dozen'th time, the warning gets a bit stale for something that was never gonna happen in the first place. The good news is that we can easily envision turning a spare switch into a WiFi access point, given that I have tons of spare switches and radios. <https://i.postimg.cc/JhyCRT69/horn-to-switch.jpg> What this shows is that re-use is handy when fixing wifi range at home. -- Usenet is a potluck where adults share value for the benefit of all. |
| Arlen _G_ Holder <_arlen.george@halder.edu>: Oct 23 05:43AM On Tue, 22 Oct 2019 18:58:59 -0700, Johann Beretta wrote: > stress on the device. You can burn out electronics just as quickly with > low voltages as you can with high voltages. Well. maybe not as quickly.. > but it can damage them eventually. Thanks for that information as I was under the impression that these things worked fine with 12 volts to 24 volts, where a quick google confirmed "some" work at 12VDC, e.g., this thread from 4 years ago o 12 Volts for ubnt devices... <https://community.ui.com/questions/12-Volts-for-ubnt-devices-/66a70792-191c-4d41-9c65-48a3fdac8e36> Where the OP specifically asked about his 3 devices (2 of which I have): o Rocket M5 (they said it works fine on 12VDC) o Bullet M2 (they said it works fine on 12VDC) o Nanostation Loco M5 (they said it works fine on 12VDC) But they did advise: "Get a passive PIE injector cable & apply battery voltage to the inputs" <https://www.adafruit.com/product/435 > <https://cdn-shop.adafruit.com/970x728/435-05.jpg> Likewise, with this guy who asked about using bullets in a moving car: o Bullet M2 (they said it works fine on 12VDC) o Bullet M5 (they said it works fine on 12VDC) Where they suggested for a car's rather noisy automotive system: "Tycon makes a 12v to 18v poe injector that would likely smooth out the bumps and ripples." Where they guys are pretty experienced at that forum, saying: "Most of these radios will actually work OK down to 7 or 8 volts, which you should never see if the power system of the vehicle is good." One guy suggested these for people using them in vehicles: o 12 Volt to 24 Volt Passive PoE: Tycon Power Systems TP-DCDC-1224 9-36VDC IN 24VDC OUT, 19W DC to DC Conv. <https://www.streakwave.com/itemdesc.asp?ic=TP-DCDC-1224&eq=&Tp=&o1=0> o 12 Volt to 24 Volt Passive PoE (Gigabit): Tycon Power Systems TP-DCDC-1224G 24V Passive PoE Output Gigabit Injector <https://www.streakwave.com/itemdesc.asp?ic=TP-DCDC-1224G&eq=&Tp=&o1=0> o Dual 5 Volt USB to 24 Volt Passive PoE: Tycon Power Systems TP-DCDC-2USB-24 USB Powered 24V Passive POE Inserter <https://www.streakwave.com/itemdesc.asp?ic=TP-DCDC-2USB-24&eq=&Tp=&o1=0> For the record, for those contemplating vehicle usage, that thread said: <https://community.ui.com/questions/12-Volt-Vehicle-PoE-for-Bullet/bc43df70-59cf-4d18-b6ac-8ed4e8d3c583> > So.. 50 hours. I wouldn't suggest more than a 50% draw on a deep > cycle, so figure a full day (24 hours). I don't know shit about RVs so > maybe RV batteries are bigger than that. I don't know anything about RVs either, but that 100 amp battery came up a lot on my searches, so if I assume 100 amps, it could last, in and of itself, for four days, but we'd have to cut that down to have a reserve for starting the vehicle. Anyway, if the guy wants to, he can run off the battery for at least a day, which may be enough for him to do in between charges (dunno, he's already got to run a ton of other electrical stuff in that RV based on the stuff that I already posted in those "RV Electrical Basics" links. Suffice to say, it's his choice (if he picks the right devices) o Generator o Inverter o Passive POE >> non-ideal conditions, we can cut that half in half, so, it seems, given >> that battery, at a 1 amp discharge rate, it would last an entire day. > I concur with that conclusion. Thanks. I always base my belief system on facts. o If the facts change, I modify the belief system Such that it's always not only based on facts, but bolstered by facts. It's why adults own rational belief systems after all. > internet at a customer's house, I use the tripod to try it out. If I > can get a decent signal using the tripod, then I know I'm good to go > once I get the dish up on the roof. It's nice to know the technique we use is similar to yours. If we want to test out a location for someone, we bring a tripod and hook up a Rocket (usually) and see what we get. Sometimes we get a wildly asymmetrical signal (upstream versus downstream), which we've not figured out why yet (a lobe perhaps?) since the WISP is symmetric. Basically, if the signal is good on the ground, we know it's gonna be good on the rooftop or in a tree, but we try to avoid trees if we can since everyone has a rooftop. > 20 dbm = 100 milliwatts > 32 dbm = 1,584 milliwatts (1.584 watts) > I hope I need not explain the issue with your "headroom" There are a few ways of looking at this, where, I'm sure you're aware, the power measurement in the AirOS report changes greatly at times, easily a handful of decibels, sometimes much more. Also, there are different applications we're talking about, from bridges, to access points, to mountaintop to mountaintop Internet feeds, etc., where each one is different in the setup and requirements, noise, and channels, etc. In addition, as you're aware, these are reasonably narrow beam devices for the most part, particularly the mountaintop to mountaintop ones, where they're also set up differently in most cases (e.g., non WiFi for example). In addition, many are nowadays 5GHz which has more non overlapping channels, which, is why, by the way, I have so much 2.4GHz stuff lying around (as we replace 2.4GHz with 5GHz every time we go up on a roof). While there are lots of variables, your way of looking at it is fine though, where I'm not saying that the lowest power that works in the given application isn't a good idea, as it is. -- Usenet is where complete srangers team up to share knowledge with everyone. |
| Arlen _G_ Holder <_arlen.george@halder.edu>: Oct 23 12:39PM On Tue, 22 Oct 2019 04:29:00 -0700, Johann Beretta wrote: > You suggest to people to buy a Powerbeam to > "throw" wifi to a fucking pool next to the house. WHY??? Hi Johann, First off, please don't build an imaginary strawman that didn't occur o I said MANY TIMES that people could use any Ubiquiti device they want That Powerbeam horn you see in the photos is simply because I have one lying around, where, in the case of pjp's one kilometer shot from his chimney to a tree at his RV, I clearly suggested almost ANY Ubiquiti device will work - where I simply told him to START with the PowerBeam and work his way down from there by way of comparison. So, stop building your own imaginary strawman around the PowerBeam. o It happens to simply be what I have lying around for my examples <https://i.postimg.cc/vT0Krpfc/laptop-nanobeam-horn.jpg> While you built an imaginary strawman around the pool, and, in fact, you called it a "fucking pool", which is odd for an adult to be so angry about something as simple as an example, my pool happens to be barely visible from the house (it's hilly terrain and we have 40 acre zoning, so you can't even put up two houses if you only have 79 acres). But the pool was simply an example - where it could be your driveway gate, which is clearly not even close to the house, and it could be the entrance to the private road, which also, is a half mile from the house, etc. For you to focus on the strawman of a "fucking pool", and specifically to then focus on the fact that you think everything anyone owns is "next to the house", simply shows how narrow minded people are when they are intent on building imaginary strawmen, just so that they can shoot them down. > Powerbeams are appropriate for miles long links. Going less than a > couple of miles? Then use a nano loco or a nano. See above about building an imaginary strawman about powerbeams, Johann o In addition, what do you ignore you can lower Tx power? My problem with the "lower power" devices is the same I have with "lower powered engines" or with buying tools that are "lower power"... a. The higher-power devices are no more or less difficult to set up b. They're not all that much cheaper either, surprisingly, don't you think? c. They're far more re-purposeable, which, for example, I do all the time For just one simple example, if we wanted to, we could dial this spare horn down to well below legal limits, and, instead of cluttering the shelves, it would become instantly useful to turn a dumb switch into an access point, would it not? <https://i.postimg.cc/JhyCRT69/horn-to-switch.jpg> Likewise, keeping in mind the speed of the slowest device rules, if we wanted to pull an old router out of the parts box to attach a spare horn to it, wouldn't that also instantly extend the range of that spare router. <https://i.postimg.cc/25NdBZ7f/horn-to-router.jpg> Since you harp on the powerbeam, the point isn't any "specific" device. o The point is that the overall concept works - does it not? > signals? Goddamn.. there's a limited number of channels. If I can pick > up your pool WiFi 10 miles away, you're doing shit wrong and you're > being an asshole. First off, your "fucking pool" comment shows how YOUR mind works. o Secondly, this comment above, shows us how YOUR mind works. Your mind concocts all sorts of imaginary nefarious conspiracies o Why haven't you accused me of watching kiddy porn at the "fucking pool"? Why not accuse me of robbing bank, Johann? o Why not accuse me of hiding dead bodies in the "fucking pool", Johann? What's to stop you, Johann, from building ANY IMAGINARY STRAWMEN you want? o Your imaginary strawmen show how YOUR mind works, Johann, not mine. First off, as I said, we have 40 acre zoning here... o So if you have 79 acres, you can only build one house Secondly, as I said, you can dial down the transmit power on these devices o I'm kind of surprised you appear completely unaware of that basic fact Since you consistently build imaginary strawmen & you ignore basic fact o May I ask you, Johann, if you're aware you can dial down the Tx power? (See also my explanation that you don't have to use the device that I simply happen to have at hand, and, that you want to be able to re-purpose the device, and, these devices don't cost all that much different.) >> o I'm always purposefully helpful. > Bullshit. You're worse than someone who doesn't know what they're doing. > You THINK you know what you're doing and you think you're an expert. I'm not afraid of facts like you are Johann... o So I simply ask you to "name just one" post of mine where I said that. Name just one. What's funny is that you build strawmen left and right, Johann. o I never once said nor implied I was an expert. In fact, much like Jeff Liebermann constantly does (history shows), I've said numerous times that both you and he know far more than I do. What's interesting Johann, is that your entire mind is filled to the brim with these imaginary strawmen, that are based on exactly zero facts. For example, you're aware these posts are "permanently" archived (for some value of permanent, of course) in web-searchable sites, right? If not, let me give you those web searchable sites, so that you are aware: o <http://tinyurl.com/alt-internet-wireless> o <http://tinyurl.com/alt-home-repair> o <http://tinyurl.com/sci-electronics-repair> And, o <http://alt.internet.wireless.narkive.com> o <http://alt.home.repair.wireless.narkive.com> o <http://sci.electronics.repair.wireless.narkive.com> I'm not afraid of facts, Johann. o I don't build imaginary strawmen like you just did, Johann Name just one post in this thread where I claim to be an expert. o Name just one > Then you take it upon yourself you teach your incorrect knowledge to > others and when it's pointed out you have a tantrum about how people who > correct your WRONG terminology are trolls. Johann, You are acting like a child. o Please stop it. It's patently clear that I know what a decibel is, when it's used the way we have been using them - where all the trolls can do is play silly games about semantics. The fact is that only a moron would be confused if I used the word decibel to claim that the powerbeam horn was 4 decibels (e.g., if I didn't use the "i" in a colloquial conversation). The fact is that only a moron would be confused if I used the word decibel to state that the PowerBeam Tx power could be dialed down to, oh, say, 10 decibels (e.g., if I didn't use the "m" in a colloquial conversation). The fact is that only a moron would be confused if I used the word "antenna" to state that I was aiming the "antenna" (aka the "radio") as I am sitting on a tree limb in a conversation down to the guy on the ground checking signal strength. What you're doing, Johann, is playing silly childish games. o Apparently you LOVE to play these silly childish games. When you play them - I'll point out that EVERYONE knows this stuff. I'll bet you correct everyone who types "internet" that the "i" is supposed to be capitalized, otherwise, everyone will be confused. HINT: You're simply proving how YOUR MIND works, Johann. Not mine. o Your mind is clearly, that of a child. Your own obsession with playing silly semantic games proves it. o As does your obsession with building imaginary strawmen proves it. Everything you post proves how YOUR MIND WORKS ... not mine. > WTF is it with you and potlucks? You see any food? It's a discussion > group. Same as they have always been. Hmmmm... why does every post from you, Johann... o Prove you own the mental abilities of a small child? Did you even look up the definition of "potluck" before making that claim? o Every adult knows you bring items of value to share at potlucks Besides, it's just an analogy, Johann. o The trolls play your silly game around analogies Because it fits with their classic approach of building imaginary strawmen. You can play all the silly childish games around analogies, Johann o Playing your silly games shows how YOUR MIND works, Johann, not mine. If you were an actual adult, Johann, you'd know this definition: o Merriam Webster (Am)English definition of "potluck": o whatever is offered or available in given circumstances or at a given time <https://www.merriam-webster.com/dictionary/potluck> Please Johann, I beg of you... o Stop proving in every post that you own the mind of a mere child. Just stop it. o Please try to act like adults act on the Usenet potluck. You have so much value to share, and so much more knowledge than I o That you're wasting that value by acting like a mere child Everything you post proves how YOUR MIND WORKS ... not mine. >> I think differently than the trolls (e.g., I never troll). >> o I think differently than the "semantic expert" (e.g., I add value). > No, you don't. You insist on teaching newbies the wrong terms. Jesus Christ Johann. When I'm on a tree limb calling down to the guy at the base of the tree asking if I'm at 50 decibels, do you really think he's going to ask me if it's negative? Only a moron doesn't know EVERYTHING you are quibbling about. Your quibbling is simply proving how YOUR MIND works, Johann, not mine. o Your mind is clearly that of a small child. I just wish you'd stop proving that fact. You're like a small child who just learned the word is "telephone", so you correct everyone who uses the colloquial words "phone" to say that it could mean "cellphone" or "landline" (and even then, you'd complain about the lack of a space, as if any of that would confuse a real adult). The only ones confused, Johann, are those who own the mind of children. This post from you clearly shows, in the permanent archives for this ng o That the entire post came from the mind of a small child. Stop it, Johann. O Try to act like an adult. > CORRECTLY. You aren't doing anyone any favors by confusing them with > your terminology. When this person later talks to someone who actually > has a clue they're gonna sound like a damn idiot. Johann, Every statement from you is an imaginary strawman that YOU BUILT YOURSELF. I realize it's an example (volts, watts, amps, etc.), but the fact remains that you are quibbling about something that we clarified from the start. I don't think ANYONE was confused about the use of "decibels" when talking about antennas (in that we didn't use the "i") - unless - unless they are a moron - or a child. What you're saying is showing how YOUR MIND WORKS, Johann; not mine. o Your mind is that of a child, Johann. Clearly, for a child, we have to spell everything out, I agree. o I just wish you didn't prove in every post you own the mind of a child. >> And, I think differently than anyone who harranges us on "legal" issues >> o When there is zero evidence that pjp is attempting to break the law > I never said he was. You just proved, yet again, you own the mental capacity of a child, Johann. o That's NOT an ad hominem attack - I'm simply pointing out a fact. The fact you missed is pjp _did_ say he wasn't against breaking the law. o The fact is though, that he doesn't need to (it's only 1 km LOS). It's strange, but EVERY SINGLE STATEMENT from you in your post o Proves, beyond doubt, you own the cognitive capacity of a small child And that is NOT an ad hominem attack o It simply is a statement that refers to your lack of comprehension > You made the grandiose statement that it was > impossible to break the law using Ubiquiti equipment. Ah, I LOVE how you again prove to own the mind of a small child, Johann. o Notice your use of "grandiose" Johann And yet, the fact shows I peppered my statements with qualifiers such as "IMHO", and "AFAIK", and I even agreed with you when you showed otherwise. Notice something very strange about people like you Johann o You were proven a child so many times, it bothers you that you ARE one So you make up this completely imaginary strawman around "grandiose" o When clearly, I had peppered that claim with humble qualifiers What your post clearly shows, Johann, is you own the mind of a child. > I showed that's patently false. And I agreed with you - like any adult would, Johann. The fact you act like a child is when you build your imaginary strawmen. Why do you consistently build these imaginary strawmen, Johann? o I don't know why. I think it's because your brain can't handle facts like an adult should. o But I'm not sure. All I know is that your entire post clearly shows you own the mind... o Of a child. Your entire premise - is imaginary - built only out of your own mind. o Like Santa Claus & the Easter Bunny are imaginary to a small child. > device and nature will invent a better idiot. The ONLY reason I brought > it up was your asinine statement that it wasn't possible. An EXPERT > would have known that it was SIMPLE to do. Your claim that I claimed to be an "expert" is based on what? o HINT: I never claim to be an expert ... so it's based on 0 facts. Name just once, in my entire decades-long history on Usenet, Johann o Where I claim to be an expert. Name just one. HINT: Your entire belief system is entirely imaginary, like that of a child. o It's based on exactly 0 facts. > Here's a good rule of thumb. When everyone else thinks you're an > asshole, it's the height of self delusion to declare that EVERYONE else > is wrong. Hehhehheh... again, this post shows how YOU THINK... Since I'm an adult, my belief system is _based_ on facts. o Your belief system, Johann, is apparently completely imaginary. I can easily prove your belief system, Johann, is wholly imaginary o With just three words. It's the simplest test there is, of imaginary belief systems, Johann o Just three words Here's the test of your imaginary belief system, Johann o Name just one Yup. Name just one fact that your imaginary belief system is based on. o That is, name an _adult_ here, who "thinks I'm an asshole". Notice the qualifier, Johann, a very important qualifier indeed. o Name an adult on this newsgroup who said I'm an asshole in this thread. Name just one. HINT: You also said "everyone", but you can't even find a single one. Your belief system, Johann, is completely imaginary. o It's based on exactly 0 facts. Each time you post, Johann, you prove this statement valid. > his exes are "bitches". One common thread in all those marriages. The > guy! Likewise, if all these people are "trolls" then you need some self > reflection pal. Hey Johann, Given I am an adult, I always pass the simplest of tests of belief systems. Yup. My belief systems are BASED on facts (it's how adult minds work). I can even easily list the people I call "trolls", Johann, simply because they prove time and again to provide zero value to technical threads. Want me to name just one trolls, Johann? o HINT: Count the number of times Snit (aka Fox's Mercantile) posted (where, out of more than a dozen, maybe even a score, he only posted factual items of any value once (and that was just today only). Clearly Fox's Mercantile trolled this thread like you can't believe. But there's more (way more) to my adult belief system, Johann. While you will fail the simplest "name just one" test of imaginary belief systems, Johann, I can name all the trolls who trolled this thread. In fact, I could predict that they would troll this thread BEFORE I even opened up the thread, Johann. That's because I own an adult belief system based on facts. The fact is, these are common trolls (many of whom |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Oct 23 05:47AM -0700 One suspects that the accretion of slime that calls itself Arlen Holder (at this moment) is unemployed and institutionalized. Otherwise, it would never have the time for all this garbage. |
| Fox's Mercantile <jdangus@att.net>: Oct 22 12:54PM -0500 > direction can be determined. > Don't even know what these are called, and haven't found > anything similar so far. Shaft encoders. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
| sound.service@btconnect.com: Oct 22 11:20AM -0700 On Tuesday, 22 October 2019 18:54:32 UTC+1, Fox's Mercantile wrote: > Jeff-1.0 > WA6FWi > http:foxsmercantile.com Datapot, AKA Rotary Encoder, AKA Shaft Encoder, usually have a digital output. This one is analogue. Cheers, Gareth. |
| sound.service@btconnect.com: Oct 22 11:29AM -0700 On Tuesday, 22 October 2019 18:54:32 UTC+1, Fox's Mercantile wrote: > Jeff-1.0 > WA6FWi > http:foxsmercantile.com If you rotate the shaft at a constant rate, I think you get 2 triangle or sine waves out, 90 degrees apart. (Haven't studied it very closely) Cheers, Gareth. |
| etpm@whidbey.com: Oct 22 02:06PM -0700 On Tue, 22 Oct 2019 11:29:03 -0700 (PDT), sound.service@btconnect.com wrote: >(Haven't studied it very closely) >Cheers, >Gareth. Since the device is being powered up and outputs a sine wave doesn't that mean it must be powered with AC? If that's the case it sounds like it may be a resolver. Eric |
| Mikko OH2HVJ <mikko.syrjalahti@nospam.fi>: Oct 23 08:08AM +0300 > They aren't the usual square wave out things, they have 4 connections, and the outputs output a varying analogue output from the (eg 5v) input. > for clarity, 2 pins are 5v and ground. The 2 outputs output 0 - 5v sinewaves when turned, 90 degrees apart I think, so direction can be determined. > Don't even know what these are called, and haven't found anything similar so far. Could it be sin/cos potentiometer ? They usually have contiuous 360° resistive element and two wipers at 90° angles for sin/cos signals. They are/were used as absolute encoders and 360° dial settings. In modern equipment encoders are used more often, but with these you get non-volatility, analog signalchain and usually quite nice 'know feeling'. -- mikko |
| sound.service@btconnect.com: Oct 23 12:29AM -0700 On Wednesday, 23 October 2019 06:08:18 UTC+1, Mikko OH2HVJ wrote: > feeling'. > -- > mikko Thanks, Mikko, yes I believe these are indeed a sin/cos potentiometer. It does have a nice feel in use, but it appears these wear out in exactly the same way the usual digital encoders do, and now I can't find anything remotely similar to replace them with. Cheers, Gareth. |
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