|
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
DTC hath wroth:
Jeff Liebermann wrote: Egads. I'm cleaning house and found a large box of 40 year old Motrash control heads and cables. Want some junk? Slacker...I tossed out all my old Moto stuff years ago. Last time I played with the Motorola line was around the Micors came out. i used a few of them for tower top UHF repeaters The local hams still have ancient junk pretending to be repeaters and such. http://www.LearnByDestroying.com/k6bj/ I built most of it out of Micor mobiles and base stations. Since the Micor stake pin connectors are chronically intermittent, there's a large rubber hammer in each rack to bang on each radio to reseat the connectors. Since no sane person keeps such old parts around, I get to stock old radios and pieces at my house. When the local comm shop cleaned out their ancient Motorola parts pile, I ended up with most of their old parts. I think it's time for a general purge, which means either eBay or the scrap metal recyclers. What I find amusing is that many police and fire departments rebuild antique or vintage police cars and engines. They eventually want a genuine Motorola twin coffin or 80D radio for the vehicle. I've supplied about 4 of these radios (working) for various projects. The first step is to spray the crumbling rubber insulated wiring with clear acrylic to prevent further deterioration. Getting the radios working is fairly easy as I have all the old test sets and some docs. The fun part for me is watching the current crop of comm techs trying to install the monster case in the vehicle. What do I do with all this big fat cable is usually the first question. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Gas Tube Noise Source WAS: How I would like to change...
Jeff Liebermann wrote:
snip I have a fluorescent lamp calibrated noise source that's quite noisy well into the GHz range. snip I built it myself from an article in some long lost magazine perhaps 30 years ago. It's just a 5watt fluorescent tube, with a few turns of wire wrapped around it going to a broadband CATV amplifier. I was quite excited by the acquisition of a CATV distrib. amp as a giveaway at a local hamfest earlier this spring; I modified it to accept external power and use BNC connectors and produced a hand- drawn schematic which I will 'capture' when time permits and post together with photos. I have used it as a front end to a freq. counter and an oscilloscope and without it I could not have completed several projects. These units are so handy it is a wonder that (at least on the Web) there has been little mention of their experimental uses. BTW, which of the numerous newsgroups in this miserably cross-posted thread do you regularly read? Regards, Michael |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
In rec.radio.amateur.antenna Bob Myers wrote:
wrote in message ... You're assuming he ever did anything more than assemble a list of technical buzz words to string together at random. In this same spirit, I have decided how I would like to change the electric toaster industry. I believe that henceforth, all electric toasters should be made from polished unobtainium with "Q"-shaped dilithium heating elements, as it is obvious that this results in more even toasting of the bread and an undeniably higher-fidelity output. Further, the toasted bread should be ejected by carefully-aligned cavorite lifters, timed by observing both the thermal state of the bread (detected through counts of left-hand circular polarized neutrino emissions) and the state of a resublimated thiotimoline crystal being exposed to the transverse-modulated IR spectrum. Discuss! Bob "The New Radium" M. But will such a scheme work with bagels and, more importantly, only toast one side? -- Jim Pennino Remove .spam.sux to reply. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Bob Myers" hath wroth:
"Jeff Liebermann" wrote in message .. . audience. My guess(tm) is that reality and accurate science are fundamentally boring, I think a lot of people perceive them as such, but that perception is, without fail in my experience, the result of a nearly-complete ignorance of these subjects on the parts of those people. Have you ever attended a meeting or event about something you really don't care about? The lady friend has dragged me to horse shows, dog shows, cat shows, and various cultural events, where it was a major accomplishment for me to stay awake. Yet to her, it was the highlight of excitement and of great interest. In other words, science and technology may be interesting to you and I, but to many, it's just a big boring waste of their time. There's also the problem of what pretends to be education. Ask even the most basic physics question to a member of the GUM (great unwashed masses), and you'll get some rather strange answers. Jay Leno likes to do that on the streets. My version of this is to watch a movie thriller and try to find the physical impossibilities. I got my introduction to this while attending the movie "The Poseidon Adventure", set in a capsized ocean liner. In attendance was a horde of engineering students from the Naval Postgraduate School in Monterey. I caught a few of the howlers, but they were seeing much more wrong with the physics. Since then, I've made it a pointing out the impossibilities to the point where none of my friends will sit through a movie with me. So much for the joy of physics. (...)Most of what passes for interesting material on the Art Bell show would be kicked out as too dull, too unimaginative, and/or too mundane by any decent science-fiction editor. Bob M. Wrong. Science fiction has mutated into social adventure, space opera, and historical fantasy. I haven't seen any really technical science fiction in many years. The reason is that reality just doesn't sell, while fantasy and nonsense sell quite well. One of my friends is fairly well know multidisciplinary scientist, who gets his thrills seeing his name appear on the credits for perhaps 300 msec. For this honor, he acts as scientific advisor to several movie makers and TV shows. In private, he complains that he is almost universally ignored and is only asked if doing this or that physical impossibility is "believable". He refers to the process as tele-gullibility. Even NASA gets into the act. I was watching a simulation of a rocket to Mars, complete with the sound of the rocket motors whizzing by the moon. Too bad there's no air around to conduct the sound. Oh well. The Art Bell show was the latest manifesting of the old circus "geek show", where weird people, animals, and objects were presented as real. Nothing really new except that now the presenting is done by the audience. In the case of usenet news, there is no circus and everything comes from the audience. The real danger of all this is NOT in the average readers inability to distinguish between reality and rubbish, but in the intellectual establishment declaring that they have a monopoly on knowledge. When science and physics gets to the point that it can't handle any critical nonsense, fantasy, speculation, or even lunacy, then it runs a high risk of ossifying progress into dogma. I would prefer tolerating Art Bell with the hope that one small kernel of something new might emerge, than to summarily dismiss all his rantings as unscientific hogwash. Just think of how much science fiction has inspired rather than predicted technical progress. Your choice. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Gas Tube Noise Source WAS: How I would like to change...
msg hath wroth:
I built it myself from an article in some long lost magazine perhaps 30 years ago. It's just a 5watt fluorescent tube, with a few turns of wire wrapped around it going to a broadband CATV amplifier. I was quite excited by the acquisition of a CATV distrib. amp as a giveaway at a local hamfest earlier this spring; I modified it to accept external power and use BNC connectors and produced a hand- drawn schematic which I will 'capture' when time permits and post together with photos. I have used it as a front end to a freq. counter and an oscilloscope and without it I could not have completed several projects. Good idea. I use a 5-1000MHz CATV amplifier as an output "booster" for my various RF signal generators. It's especially handy if I want to talk on a repeater using my signal generator or service monitor. These units are so handy it is a wonder that (at least on the Web) there has been little mention of their experimental uses. Oh, they've been around. I've seen articles on how to use them as HF AM and SSB power amplifiers. Many HF radios use CATV amplifiers for broadband drivers. You don't see them called CATV amps much because they are 75 ohms in and out, while just about everything else is 50 ohms. BTW, which of the numerous newsgroups in this miserably cross-posted thread do you regularly read? Read? I don't read anything, I just post answers and rants. http://groups.google.com/groups/profile?enc_user=tWGMphwAAAAGTj9X4k0U7wKkGyU8QhaBh axMG2M1PWkMtCZAt5tdxQ&hl=en See "Recent Activity". 19,520 messages. Methinks I need a vacation, project, or something. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
How I would like to change the cell phone industry [was AM
Bob Myers wrote:
wrote in message ... You're assuming he ever did anything more than assemble a list of technical buzz words to string together at random. In this same spirit, I have decided how I would like to change the electric toaster industry. I believe that henceforth, all electric toasters should be made from polished unobtainium with "Q"-shaped dilithium heating elements, as it is obvious that this results in more even toasting of the bread and an undeniably higher-fidelity output. Further, the toasted bread should be ejected by carefully-aligned cavorite lifters, timed by observing both the thermal state of the bread (detected through counts of left-hand circular polarized neutrino emissions) and the state of a resublimated thiotimoline crystal being exposed to the transverse-modulated IR spectrum. Discuss! Bob "The New Radium" M. If it will handle full grown trolls, I want the first ione! How long before Radium would be golden brown, and ready to feed to the hogs? ;-) -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
How I would like to change the cell phone industry [was AM
|
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Radium" wrote in message oups.com... | On Jul 15, 6:58 pm, Jeff Liebermann wrote: | | Radium hath wroth: | | The AM audio cause by lightning is so boring. | All you get are clicks | and pops. | | Oh no. It's much better than that. You get snap, crackle, pop, | crash, hiss, zap, buzz, braaaaaap, and other noises, all to the | accompanyment of loud thunder and the smell of ozone. It can also | make the fur stand up on your back. | | One thing that I do like are the sharp sawtooth wave patterns that | show up on FM video receivers whenever lightning strikes. FM video | receivers receive Y [luminance] signals present on FM radio waves. | Electrical disturbances affect the FM video receiver causing those | beautifaul zapping and buzzing sawtooth patterns on the screen. The only FM on standard TV is the audio. Video is vestigial sideband AM. BTW my grand daughter had that figured out by the time she was 12 y.o. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
On Jul 16, 9:15 am, DTC wrote:
I was not aware there was a compelling reason for analog cell phones to stop using FM. Sounds like a solution looking for a problem. FM audio is boring -- no entertaining high-pitched tones from solar prominences which would definitely be heard on AM audio. OTOH, AM video is boring. FM video is better. As I said before, the Y [luminance] signal should be carried on an FM wave rather than an AM wave. Analog radio-frequency audio devices should use AM. Analog radio-frequency video devices should use FM. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
On Jul 15, 6:58 pm, Jeff Liebermann wrote:
Radium hath wroth: The AM audio cause by lightning is so boring. All you get are clicks and pops. Oh no. It's much better than that. You get snap, crackle, pop, crash, hiss, zap, buzz, braaaaaap, and other noises, all to the accompanyment of loud thunder and the smell of ozone. It can also make the fur stand up on your back. One thing that I do like are the sharp sawtooth wave patterns that show up on FM video receivers whenever lightning strikes. FM video receivers receive Y [luminance] signals present on FM radio waves. Electrical disturbances affect the FM video receiver causing those beautifaul zapping and buzzing sawtooth patterns on the screen. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Radium" wrote in message ps.com... snip Analog radio-frequency video devices should use FM. Like satellite downlinks do? Yes, that's best for their purposes. Others would fall in if it were best for them. Apparently it isn't. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"NotMe" wrote in message ... "Radium" wrote in message oups.com... | On Jul 15, 6:58 pm, Jeff Liebermann wrote: | | Radium hath wroth: | | The AM audio cause by lightning is so boring. | All you get are clicks | and pops. | | Oh no. It's much better than that. You get snap, crackle, pop, | crash, hiss, zap, buzz, braaaaaap, and other noises, all to the | accompanyment of loud thunder and the smell of ozone. It can also | make the fur stand up on your back. | | One thing that I do like are the sharp sawtooth wave patterns that | show up on FM video receivers whenever lightning strikes. FM video | receivers receive Y [luminance] signals present on FM radio waves. | Electrical disturbances affect the FM video receiver causing those | beautifaul zapping and buzzing sawtooth patterns on the screen. The only FM on standard TV is the audio. Video is vestigial sideband AM. BTW my grand daughter had that figured out by the time she was 12 y.o. Analog satellite still uses FM, but there is very little of that left. 30MHz wide channels. Think there used to be one version of SECAM (in France, IIRC) that used FM video. That's gone now, too. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
|
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Jeff Liebermann" wrote in message ... Have you ever attended a meeting or event about something you really don't care about? The lady friend has dragged me to horse shows, dog shows, cat shows, and various cultural events, where it was a major accomplishment for me to stay awake. Yet to her, it was the highlight of excitement and of great interest. In other words, science and technology may be interesting to you and I, but to many, it's just a big boring waste of their time. Oh, sure, and I couldn't agree more. I place the blame for that squarely on our education system, which - unless you have amazingly good luck in getting the right teacher - will present "science" as an incredibly dull collection of arcane facts and formulas to be memorized, and not an interesting, exciting process full of wonders. The root of that, of course, is just that the "science" teachers most often don't really know what "science" is all about in the first place. Wrong. Science fiction has mutated into social adventure, space opera, and historical fantasy. I haven't seen any really technical science fiction in many years. Spider Robinson. Joe Haldeman. Larry Niven. Jerry Pournelle. Ben Bova. Greg Egan. Stephen Baxter. Arthur C. Clarke, who, thank the FSM, is still with us and writing. Sure, there's an AWFUL lot of crap out there - SF, like everything else, obey's Sturgeon's Law - but the good stuff is still being written. You just have to look for it. Bob M. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Radium" wrote in message ps.com... OTOH, AM video is boring. FM video is better. As I said before, the Y [luminance] signal should be carried on an FM wave rather than an AM wave. OK, but then, you're quite ignorant of anything remotely related to this field, aren't you? Bob M. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Radium" wrote in message oups.com... One thing that I do like are the sharp sawtooth wave patterns that show up on FM video receivers whenever lightning strikes. When, pray tell, have you ever seen an "FM video receiver"? Bob M. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
In rec.radio.amateur.antenna Bob Myers wrote:
"Radium" wrote in message oups.com... One thing that I do like are the sharp sawtooth wave patterns that show up on FM video receivers whenever lightning strikes. When, pray tell, have you ever seen an "FM video receiver"? Bob M. Where he gets the rest of his "technology"; drug dreams. -- Jim Pennino Remove .spam.sux to reply. |
How I would like to change the cell phone industry [was AM
Radium wrote:
One thing that I do like are the sharp sawtooth wave patterns that show up on FM video receivers whenever lightning strikes. FM video receivers receive Y [luminance] signals present on FM radio waves. Electrical disturbances affect the FM video receiver causing those beautifaul zapping and buzzing sawtooth patterns on the screen. You may also enjoy listening to the dial tone while standing in a glass payphone booth. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Bob Myers" hath wroth:
"Radium" wrote in message roups.com... One thing that I do like are the sharp sawtooth wave patterns that show up on FM video receivers whenever lightning strikes. When, pray tell, have you ever seen an "FM video receiver"? Bob M. I have one of those FM video receivers. It's my (ancient) Wavetek 3000b communications service monitor, which displays all kinds of nifty light shows and patterns for FM. I often tune it to the WX channel and watch the modulation on the scope display. It's kinda hypnotic without the accompanying audio and sometimes an improvement over what's available on TV. I guess it's TV for radio geeks. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Bob Myers" hath wroth:
Wrong. Science fiction has mutated into social adventure, space opera, and historical fantasy. I haven't seen any really technical science fiction in many years. Spider Robinson. Joe Haldeman. Larry Niven. Jerry Pournelle. Ben Bova. Greg Egan. Stephen Baxter. In the interest of brevity, I won't rattle off examples of how most of those authors started out with hard technical science fiction, and ended up recently writing what amounts to "future social problems" type of sci-fi. At age 74, Ben Bova still cranks out excellent stories but seems to be very light on the technology in the last few years. Stephen Baxter is a scientist and really does well speculating on where technology is sending us. Greg Egan is a mathemagician with a rather creative view of artificial intelligence. Haldeman puts me to sleep, Niven is just plain weird, and Pournelle is too militarist for my liking. They've all done "hard" sci-fi writing, but as time progresses, seem to be writing for a much different audience, such as writing for TV or movies. That's where the space opera, social adventure (chase scenes, crash and burn, and explosions) are coming from. I still read Stephen Baxter, but none of the others. This is the first I've heard of Spider Robinson, but will give his stuff a look. Arthur C. Clarke, who, thank the FSM, is still with us and writing. Yeah, but he can certainly beat the "2001 Space Odyssey" theme to death. At 89, I'm really impressed that he's still working. However, his last few books have been co-authored by Stephen Baxter and read more like Baxter's complex writing, than Clarke's neatly clipped short lines. Ok, I'll concede the hard sci-fi hasn't gone down the tubes completely and that there are still authors catering to a technically astute audience. However, even the best of these (as you've itemized) tend to drift toward the popular media, mass market, and general audience market, which deals primarily in entertainment. This entertainment is invariably devoid of technology, lacking in a basis on physical reality, and is dominated by space opera and general idiocy. For every sci-fi author that knows his science, there are perhaps 50 that are lacking. Little wonder that space opera predominates as it requires very little technical expertise to write. Maybe that's why I like reading Mr. Radium's muddled tech rants. It's the closest approximation to science fiction I can easily find. Sure, there's an AWFUL lot of crap out there - SF, like everything else, obey's Sturgeon's Law - but the good stuff is still being written. You just have to look for it. These daze, I have to do more than look. I have to dig, excavate, and filter to find it. However, I found a suitable replacement about 10 years ago. I was reading dot com business plans. Not only was I being paid to rip them apart, but the products and services were some of the best science fiction I had ever read. The authors of some of those business plans really should be writing sci-fi stories. I really miss the passing of the dot com era and the tremendous technical imagination that helped make it happen. Reminder: None of the sci-fi authors up to about 1970, ever predicted the rise of personal computah. It was always the giant mainframe (Multivac). Some came close with remote terminals, but even those had a mainframe behind them. Oh well, can't get it right every time. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Jeff Liebermann" wrote in message ... When, pray tell, have you ever seen an "FM video receiver"? Bob M. I have one of those FM video receivers. It's my (ancient) Wavetek 3000b communications service monitor, which displays all kinds of nifty light shows and patterns for FM. I often tune it to the WX channel and watch the modulation on the scope display. It's kinda hypnotic without the accompanying audio and sometimes an improvement over what's available on TV. I guess it's TV for radio geeks. Somehow, though, I don't think that's quite what our boy Radium was talking about... Bob M. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Jeff Liebermann" wrote in message ... This is the first I've heard of Spider Robinson, but will give his stuff a look. Spider's not as "hard tech" as some of the others have been, but has been compared with Robert Heinlein in overall style. (A comparison which I am very sure he wouldn't claim himself, as RAH is a longtime hero of Spider's.) But his stuff is just an amazing amount of plain, unadulterated FUN. Try, especially, the "Callahan's Saloon" stories. Arthur C. Clarke, who, thank the FSM, is still with us and writing. Yeah, but he can certainly beat the "2001 Space Odyssey" theme to death. At 89, I'm really impressed that he's still working. However, his last few books have been co-authored by Stephen Baxter and read more like Baxter's complex writing, than Clarke's neatly clipped short lines. In my book, Clarke's earned the right to do whatever he damn well pleases at this point. And he certainly has done quite a bit besides the "2001" stuff; there's the "Rama" stories, "The Fountains of Paradise," etc...and I don't think the work with Baxter has been all that bad - you didn't like "The Light of Other Days"? Ok, I'll concede the hard sci-fi hasn't gone down the tubes completely and that there are still authors catering to a technically astute audience. However, even the best of these (as you've itemized) tend to drift toward the popular media, mass market, and general audience market, which deals primarily in entertainment. Well, as the Grand Old Man himself once noted, "Writing is like prostitution - first you do it for love, and then for a few close friends, and then for money." A writer who doesn't - or can't - write what sells won't stay around long enough to write the Important Stuff, should he or she care to do so. invariably devoid of technology, lacking in a basis on physical reality, and is dominated by space opera and general idiocy. For every sci-fi author that knows his science, there are perhaps 50 that are lacking. Little wonder that space opera predominates as it requires very little technical expertise to write. Again, though - Sturgeon's Law applies to EVERYTHING. No exceptions. Maybe that's why I like reading Mr. Radium's muddled tech rants. It's the closest approximation to science fiction I can easily find. But they sure don't seem to be grounded in anything even resembling reality. If you want hard SF, and not the sort of fantasy that makes "Star Wars" look like a physics text, you'd really have to look elsewhere. Reminder: None of the sci-fi authors up to about 1970, ever predicted the rise of personal computah. To be sure, but then, neither did anyone else. One of the nicest things about the future is that it always is full of surprises for everyone. Bob M. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
"Bob Myers" hath wroth:
"Jeff Liebermann" wrote in message .. . When, pray tell, have you ever seen an "FM video receiver"? Bob M. I have one of those FM video receivers. It's my (ancient) Wavetek 3000b communications service monitor, which displays all kinds of nifty light shows and patterns for FM. I often tune it to the WX channel and watch the modulation on the scope display. It's kinda hypnotic without the accompanying audio and sometimes an improvement over what's available on TV. I guess it's TV for radio geeks. Somehow, though, I don't think that's quite what our boy Radium was talking about... Bob M. If it's not what Mr Radium is using, it's close. Haven't you watched the typical pre-1971 science fiction movie? The arrival of any alien object or visitor is initially detected and displayed on a large CRT, usually with an unstable Lissajous pattern or trivialized radar simulation plus the requisite shrill noises and sound effects. After seeing that demonstration, I concluded that if I was going to personally greet the Galactic Ambassador from AlGore, I would need a similar alien detector or communicator. The closest approximation I could find was a communications service monitor. In order to monitor it continuously, I decided that a 15 year career in land mobile communications was required. I would leave it running continuously, waiting for the voices from outer space. Unfortunately, the ambassador is apparently distracted and I have moved on to other professions. I still own a service monitor and still turn it on waiting for the display to mark the arrival of the alien visitors. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
In rec.radio.amateur.antenna Jeff Liebermann wrote:
snip These daze, I have to do more than look. I have to dig, excavate, and filter to find it. However, I found a suitable replacement about 10 years ago. I was reading dot com business plans. Not only was I being paid to rip them apart, but the products and services were some of the best science fiction I had ever read. The authors of some of those business plans really should be writing sci-fi stories. I really miss the passing of the dot com era and the tremendous technical imagination that helped make it happen. Reminds me of a meeting held at a large, prominent aerospace company some years back where the marketing weenie was touting the latest air-to-air missle idea that would completely dominate the market. He was a bit taken aback (but not deterred, which is another story) when one of the engineers in the audience pointed out that they needed to come up with a communications system that operated about 3 times the speed of light to make it work. snip remaining -- Jim Pennino Remove .spam.sux to reply. |
How I would like to change the cell phone industry [was AM
Jeff Liebermann wrote:
. . . Maybe that's why I like reading Mr. Radium's muddled tech rants. It's the closest approximation to science fiction I can easily find. . . . Try U.S. patents. The prose style is deadly, but the descriptions of operation are very often entertainingly fictional. For a warm-up, I recommend "Hyper-Light-Speed Antenna" by David L. Strom, #6,025,810. There are many more creative ones and ones based on better pseudo-science, but that one is surely worth a read. Roy Lewallen, W7EL |
How I would like to change the cell phone industry [was AM
Roy Lewallen wrote:
Jeff Liebermann wrote: . . . Maybe that's why I like reading Mr. Radium's muddled tech rants. It's the closest approximation to science fiction I can easily find. . . . Try U.S. patents. The prose style is deadly, but the descriptions of operation are very often entertainingly fictional. For a warm-up, I recommend "Hyper-Light-Speed Antenna" by David L. Strom, #6,025,810. But that one, according to the disclosure, in combination with light, enhances plant growth. (and I suppose, if one were growing mushrooms, one wouldn't even need the light..) There are many more creative ones and ones based on better pseudo-science, but that one is surely worth a read. Roy Lewallen, W7EL |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
Roy Lewallen hath wroth:
Jeff Liebermann wrote: . . . Maybe that's why I like reading Mr. Radium's muddled tech rants. It's the closest approximation to science fiction I can easily find. . . . Try U.S. patents. The prose style is deadly, but the descriptions of operation are very often entertainingly fictional. For a warm-up, I recommend "Hyper-Light-Speed Antenna" by David L. Strom, #6,025,810. http://www.google.com/patents?id=csYDAAAAEBAJ&dq=6,025,810 Cute. Apply DC and heat, and it goes faster than light. Here's my candidate for the RF hype award: "Magnetic field based power transmission line communication method and system" http://www.google.com/patents?id=N_sEAAAAEBAJ&dq=5982276 Uses a MASER with no visible means of coupling it to the power line to move 2GBits/sec. Of course, it eventually went to litigation: http://dallas.bizjournals.com/dallas/stories/2004/03/22/story5.html 6 Pages from Wired Magazine: http://www.wired.com/wired/archive/9.11/media.html The list of suckers, er.... investors, it truely impressive. I'll pretend not to mention commercial antennas that are sold without any useful specifications, patterns, or simulations. That's one reason I've often considered going into the antenna business. The more they resemble a gold plated metallic scrap heap, the better they sell. Few customers can see how they operate. Product comparisons are difficult or impossible. Magic is everywhere. Yeah, the antenna biz looks good. There are many more creative ones and ones based on better pseudo-science, but that one is surely worth a read. Roy Lewallen, W7EL Yes, but patents aren't made to be read by humans. They're made to be read and fought over by attorneys. I've also derived some entertainment from patents. For a while, I was collecting what I considered to be patented impossibilities from companies that exist mostly as a stock scam. However, I got into legal hot water when I started to publicly suggest that their patented technology was closer to science fiction than science. To avoid litigation, I've had to keep my big mouth shut. I've run into some real howlers that I would just love to offer as entertainment, but don't need or want to risk an infestation of attorneys. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
Thank you Jim. You did good, it will come around full circle, allways does!
Butch KF5DE wrote in message ... In rec.radio.amateur.antenna Radium wrote: On Jul 1, 7:24 am, wrote in http://groups.google.com/group/sci.e...0c8ed13?hl=en& : how would u like to change the cell phone industry? Analog cells phones should stop using FM and should start using AM with SHF frequencies - at least 3 GHz and at most 30 GHz. Analog cell phones are going away. Cell phones already use frequencies in the 3 GHz region. You are an idiot. snip crap -- Jim Pennino Remove .spam.sux to reply. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
On Sun, 15 Jul 2007 20:45:02 GMT, wrote in
: In rec.radio.amateur.antenna Radium wrote: On Jul 1, 7:24 am, wrote in http://groups.google.com/group/sci.e...0c8ed13?hl=en& : how would u like to change the cell phone industry? Analog cells phones should stop using FM and should start using AM with SHF frequencies - at least 3 GHz and at most 30 GHz. Analog cell phones are going away. True. Cell phones already use frequencies in the 3 GHz region. False. -- Best regards, FAQ FOR CINGULAR WIRELESS: John Navas http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
In rec.radio.amateur.antenna John Navas wrote:
On Sun, 15 Jul 2007 20:45:02 GMT, wrote in : In rec.radio.amateur.antenna Radium wrote: On Jul 1, 7:24 am, wrote in http://groups.google.com/group/sci.e...0c8ed13?hl=en& : how would u like to change the cell phone industry? Analog cells phones should stop using FM and should start using AM with SHF frequencies - at least 3 GHz and at most 30 GHz. Analog cell phones are going away. True. Cell phones already use frequencies in the 3 GHz region. False. 1.9 GHz is in the -region- of 3 GHz. ..8 GHz is not in the -region- of 3 GHz. -- Jim Pennino Remove .spam.sux to reply. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
On Jul 16, 7:36 pm, "Brenda Ann" wrote:
Analog satellite still uses FM, but there is very little of that left. 30MHz wide channels. Think there used to be one version of SECAM (in France, IIRC) that used FM video. That's gone now, too. Actually SECAM also uses AM for the luminance signal. However, it uses FM for the color [chroma] signal. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
On Jul 16, 6:07 pm, "NotMe" wrote:
The only FM on standard TV is the audio. Video is vestigial sideband AM. I want it to be the opposite. |
How I would like to change the cell phone industry [was AM
Jeff Liebermann wrote:
I still own a service monitor and still turn it on waiting for the display to mark the arrival of the alien visitors. No doubt waiting for the Navasites from the Shirley Maclean alternative universe...with their Extended GSM communicators. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
On Tue, 17 Jul 2007 19:13:33 -0500, DTC
wrote in : Jeff Liebermann wrote: I still own a service monitor and still turn it on waiting for the display to mark the arrival of the alien visitors. No doubt waiting for the Navasites from the Shirley Maclean alternative universe...with their Extended GSM communicators. Hint: Extended GSM is a tower feature, not a handset feature. -- Best regards, FAQ FOR CINGULAR WIRELESS: John Navas http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
On Wed, 18 Jul 2007 00:05:01 GMT, wrote in
: In rec.radio.amateur.antenna John Navas wrote: On Sun, 15 Jul 2007 20:45:02 GMT, wrote in Cell phones already use frequencies in the 3 GHz region. False. 1.9 GHz is in the -region- of 3 GHz. False. -- Best regards, FAQ FOR CINGULAR WIRELESS: John Navas http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
In rec.radio.amateur.antenna Radium wrote:
On Jul 16, 6:07 pm, "NotMe" wrote: The only FM on standard TV is the audio. Video is vestigial sideband AM. I want it to be the opposite. I want you to go away until you at least have a high school education in science and techology and learn how to use Google. I don't think either is going to happen. -- Jim Pennino Remove .spam.sux to reply. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
In rec.radio.amateur.antenna John Navas wrote:
On Wed, 18 Jul 2007 00:05:01 GMT, wrote in : In rec.radio.amateur.antenna John Navas wrote: On Sun, 15 Jul 2007 20:45:02 GMT, wrote in Cell phones already use frequencies in the 3 GHz region. False. 1.9 GHz is in the -region- of 3 GHz. False. It certainly is within about 20%. -- Jim Pennino Remove .spam.sux to reply. |
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
|
How I would like to change the cell phone industry [was AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency]
In rec.radio.amateur.antenna John Navas wrote:
On Wed, 18 Jul 2007 00:55:01 GMT, wrote in : In rec.radio.amateur.antenna John Navas wrote: On Wed, 18 Jul 2007 00:05:01 GMT, wrote in : In rec.radio.amateur.antenna John Navas wrote: On Sun, 15 Jul 2007 20:45:02 GMT, wrote in Cell phones already use frequencies in the 3 GHz region. False. 1.9 GHz is in the -region- of 3 GHz. False. It certainly is within about 20%. No radio engineer would agree. That should have been about 30%, but in any case, I am an engineer and there isn't a whole hell of a lot of anything different between 1.9 GHz and 3 GHz. What? Some trivial differences in path losses? Antennas a bit different in size by what, 4 mm unless I slipped a decimal point in my head? -- Jim Pennino Remove .spam.sux to reply. |
| All times are GMT +1. The time now is 10:34 AM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com