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#1
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Len:
At the end of this post is your text taken from the moderates hangout (rec.radio.amateur.moderated) ... One major invention you didn't mention, which is just about poised to shake the world, is the invention of "cultured diamonds." Cultured diamonds are absolutely real, indeed, they are more perfect and flawless than any diamond which has ever been found in nature. Their purity is the same as the absolutely pure silicon quartz crystal, silicon semiconductor material, germanium, etc. which is used by the electronics/semiconductor industry. This URL explains them rather well: http://www.wired.com/wired/archive/11.09/diamond.html Why is this new development so important to the electronics world? Well, present silicon technology is about at its limit. What now limits major increases in computing speed is the temperature limitations of silicon. Diamond far exceeds the capabilities of silicon and will allow much faster computer speeds. Until very recently diamond pure enough for use in semiconductors was not available, and even if it was, its' use would be cost prohibitive. It is interesting the russians actually developed the technology to manufacture these cheap diamonds (present cost to make a one carat diamond? Approx. $5.00 USD.) Just one more example of how the US is lagging behind russia, china, australia, etc. Yes, real diamonds are almost cheap enough to pave your driveway with; and not only that, they are more perfect than anything found in nature. No jeweler can tell the difference between a "cultured diamond" and one found in nature. Only expensive testing can find the differences (and only then because the "cultured diamond" is perfectly flawless.) De Beers is poised to mount an ad campaign expounding the desirability of nature (natural?) diamonds over these cultured diamonds. Their motivations are only too transparent. At present, each "cultured diamond" must be marked by laser to denote it is synthetic. However, get a ten carat diamond and cut it into smaller gems and who's the wiser? (without a high-tech lab.) You might think this is a great boon to women and wedding rings (not to mention the poor jerk who must put up the bucks for the purchase of one.) But no, the news media seems to have clamped a pretty tight lid on news about these diamonds. De Beers avoids any mention or comment on these diamonds, if at all possible. Call any major diamond wholesaler/retailer and they will most likely claim ignorance to their existence. I found only one outlet on the east coast where one could obtain them, they were priced, retail, about 1/3 the cost of diamonds found in nature. We live in a much more controlled world than anyone would care to imagine or admit. I suspect the dollar controls our education and knowledge ... (and information in general.) At present, I only wonder if this is hampering/slowing their use in electronics ... and what else is like this which I am unaware of ... I am appalled we have let ourselves become enslaved by very wealthy interests which now appears to affect even news media, mans developing technologies and semiconductor manufacturing ... JS "Once upon a time" is approximately the time period prior to World War II...the first 44 years of "radio" as a communications medium. Trying to judge progress in a technology area involving hobbyists solely by the information contained in hobbyist publications is inaccurate, if not outright braggadocio by hobbyists. "Radio" as a communications medium is now 111 years old. The innovation, invention, and quantum-jumps in increases of the communications (and radio) arts of the last 67 years have totally eclipsed those early pioneering days done by everyone involved with any RF emission activity. Some of the highlights: 1. "Discovery of 'shortwaves' enabling worldwide communications: Already known by non-hobbyist technologists. Radio amateurs were forced upwards in frequency use by politics, not pioneering. It was fortuitous for amateurs, yes, but not necessarily of their own and objected-to at the time by amateurs. 2. SSB: Already used in wireline communications by long-distance telephony providers in the 1920s; use on HF as "carrier" (multi- channel) service by commercial and government groups in the 1930s. Single-channel SSB given boost by USAF contracts for such in the immediate-post-WWII time. 3. Quartz crystal control of frequency: Already known by academics and other physical standards workers; WWII needs resulted in mass- production of crystal units reaching a million units per month; synthetic (man-made) quartz crystal growth perfected by industry in the 1950s. Growth techniques helped the semiconductor industry with similar growth of germanium and silicon ingots. 4. VHF FM voice: Pioneering already begun about 1938 by industry to improve Public Safety mobile communications and adopted by military for universal manpack and vehicular radio in WWII; broadcasting use pioneered by Edwin Armstrong in 1930s for broadcasting industry applications, including music. 5. Superheterodyne receivers: Invention of Edwin Armstrong in 1918, led to almost universal use of superheterodyne architecture in receivers to the present day in all radio services. 6. Quartz and mechanical-torsion-resonator narrow bandpass filters: Originally developed by telephony industry for "carrier" long- distance wireline and multi-channel RF communications providers; development of "modern filter theory" spurred by this same application plus long-distance frequency-multiplexed microwave radio relay (transcontinental service). Adoption to most radio architectures possible by man-grown quartz crystal blanks (3). 7. "Channelized" (step-increment) frequency control of Rx, Tx: First wide use in DoD/USAF contracts for post-WWII single- channel SSB, followed shortly thereafter by air carrier and general aviation radionavigation and radio communications. 8. Use of internal ("embedded") microprocessors for general purpose control of function and frequency: Almost simultaneous in both test equipment and various radio communications services beginning about the mid-1970s. Such enabled reduced interior space, number of total components by eliminating mechanical couplings of controls. Adjunct advantage of providing displays of controls settings and mathematical results of some functions heretofore unavailable with older methods. 9. Digital Signal Processing (DSP): Probable first widespread use for submarine and anti-submarine military use, typically SONAR variations. Followed closely by applications to "music synthesizers" and similar (PC sound cards) and consumer electronics and instrumentation displays. This and item (8) made possible by Large Scale Integration of solid-state devices beginning their explosive growth in the mid-1970s. The preceding items are just a short list of major innovations as they apply to common amateur radio use of today. It does not begin to cover major innovations in all electronics, including applications to medicine and architectural engineering nor the physical standards organizations worldwide. Ham radio ceased to be forward looking and innovative and has devolved into something more akin to stamp collecting - interesting to practitioners, useless to the world at large. "Xxx," to paraphrase Hans Brakob, I would "throw that out with great force." The activity of amateur radio is basically a hobby, an activity done primarily for personal enjoyment...worldwide, I might add. It is a fascinating one, a technically-challenging one, one of use in communicating with like-minded enthusiasts, local to worldwide. Hobbies are FUN for their participants. There is nothing at all "wrong" with having FUN doing anything, whether stamp collecting, rebuilding classic cars, flying model aircraft by radio control, or being advisors for Scouts. Radio amateurs, by and large, are not into amateur radio for the sake of being inventors, scientific researchers, manufacturers of radio-electronics devices, or being emergency and disaster volunteers. They CAN, of course, as can any citizen without an amateur radio license. I could cite an equally-long list of "post-Sputnik" innovations that have appeared in amateur radio use and technology, done by radio amateurs themselves. Some, if not most, are citizens of other countries. However, the more widely-used innovations and inventions has, from the beginning, come from academicians, engineers and producers in the electronics industry, and communications providers. The history of all that explosive growth has been continually documented in hundreds of trade journals, professional associations, and scientific journals. It isn't exclusive to appearing in amateur radio interest publications. Ham radio will not grow until and unless it is seen to provide value to the larger community. Once, it was considered to be a source of competitive advantage to the economy by contributing to the technological base (a post-Sputnik point of view). Please feel free to document all those "advantages to the economy." I see very few such cases of the last 111 years of "radio." What I have seen are a number of claims for same that very conveniently "sin by omission" [of incorrect attribution to the overall world of radio and electronics]... something that marketeers know by the simple acronym of "PR." My guess is that the FCC was willing to ignore the complaints of the ARRL and the old Morse code cultists because they (the FCC) see it that way, as well. I must disagree with that as well. Since the FCC must regulate ALL United States civil radio RF emissions, they are chartered to be aware and informed of almost everything in regards to "radio." They DO that on a technical level, including having an Office of Engineering and Technology for their own advisement. The FCC is aware of nearly ALL radio use, not only in the USA but worldwide (we are globally interconnected in many communications ways). The FCC also asks for advice on use and technology and, as chartered by law, input from ALL citizens. Such "input" is made available to the public at large, freely. Anyone can fault the FCC for some alleged political bias. That is frequent and also many-sided. Such is normal in politics, but it is not per se some "truth." The ARRL ("my" club) is no more a paragon of truth than any membership organization and the FCC is not bound to 'obey' the ARRL 'advice' than any other special-interest group. The FCC made a decision on a contentious subject in amateur radio license examinations. The FCC has the final say on who is licensed and who is not. The public comment period was long and over 3,700 citizens commented. The FCC took about a year to reach a decision on the matter, then made it law by legal means. Let us accept that and go forward. Len AF6AY |
#2
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On Apr 19, 9:40�pm, John Smith I wrote:
Len: At the end of this post is your text taken from the moderates hangout (rec.radio.amateur.moderated) ... One major invention you didn't mention, which is just about poised to shake the world, is the invention of "cultured diamonds." *Cultured diamonds are absolutely real, indeed, they are more perfect and flawless than any diamond which has ever been found in nature. *Their purity is the same as the absolutely pure silicon quartz crystal, silicon semiconductor material, germanium, etc. which is used by the electronics/semiconductor industry. *This URL explains them rather well: http://www.wired.com/wired/archive/11.09/diamond.html Why is this new development so important to the electronics world? Well, present silicon technology is about at its limit. *What now limits major increases in computing speed is the temperature limitations of silicon. *Diamond far exceeds the capabilities of silicon and will allow much faster computer speeds. *Until very recently diamond pure enough for use in semiconductors was not available, and even if it was, its' use would be cost prohibitive. I did not include carbon crystal growth for the simple reason that it does not have any DIRECT application to electronics. The push to grow quartz crystals by man was an outfall of WWII quartz crystal unit production with a war priority topped only by the Manhattan Project. Some 37 to 38 MILLION quartz crystal units were produced during WWII. (reference from a paper available at Corning Frequency Control Div.) There was only one source of natural quartz crystals pure enough for oscillator crystals during WWII, Brazil, a neutral in WWII. No other country had a good supply of natural quartz, allied, axis, or neutral. Some, not all, of the man-made crystal growth processes were applicable to semiconductor material growth and refining, most especially refining...first of germanium, then silicon, and in a much later experiment, carbon (whose crystalline form is diamond). The Army Central Electronics Command did experiment (or contracted out) manufacture of crystalline carbon as a semiconductor basis. The end result turned out to be extremely difficult to perform cutting and slicing, then the precise "doping" to introduce P- and N-type zones to make the proper junctions. While there were quite obvious advantages to withstand much higher termps than silicon (that much better than germanium), the end result was a terribly-expensive transistor that wasn't practical for military electronics hardware. It should be noted that there were a LOT of "blue-sky" trials in industry and government of the 1960s, including "flat" vacuum tubes with no filaments...everything about a triode structure was heated to stimulate electron emission...most of those were just experiments, the "what if" kind of thing. Many of those appeared as PR squibs in the trade papers of the 1960s AS IF they were "already developed" and makers were "ready to take orders." :-) There were so many of these experiments during the '60s that it prompted a couple of engineers to present a "paper" at a WESCON (big West Coast Convention, annual) about their "Linistor," a "Linear Resistance Semi-Conductor." The sharp folks caught on immediately that all it did was describe the already-long-available carbon composition resistor! :-) Needless to say the WESCON papers judges were much embarrassed; my STL Lab Chief was on that papers committee at the time. [carbon in crystal form is diamond] Russian researchers are no dummies. A few years ago they announced and demonstrated an X-Ray lens (which memory sez might have been made of synthetic diamond?). That lens was used as a collimator for lithography needed for area doping and masking at extremely-small dimensions, a goal of all semiconductor makers. X-Ray wavelengths are shorter than deep UV now used. Cheap quartz crystals' availability made possible the post-WWII NTSC color TV receiver architecture (internal color sub-carrier oscillator lockable in phase to the received color burst). Man- made quartz crystals are the mainstay of today's ubiquitous crystal oscillators, once in channelized radio frequency synthesizers (brute-force method of mixing banks of crystal frequencies) to microprocessors and microcontrollers in everything from high-end ham transceivers to lawn sprinkler controllers. One can get hundreds of different stock frequency crystal units now, all under $2 apiece, from all suppliers, OSE to Digi-Key. Please save your diatribes of "decadent capitalist fat cats" where they gobble up all the wealth. Go watch "American Idol" or some other PR-driven BS show about "talent" which is really all one big marketing exercise. Or, you could read the "HF Digital Voice" article in QST of April, 2007. Possibly LEARN something, rather than mumble along about irrelevant stuff on diamonds. :-( 73, Len AF6AY |
#3
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AF6AY wrote:
... Or, you could read the "HF Digital Voice" article in QST of April, 2007. Possibly LEARN something, rather than mumble along about irrelevant stuff on diamonds. :-( 73, Len AF6AY Here we widely differ, the diamond will change electronics, by magnitudes ... JS |
#4
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On Apr 20, 10:23�am, John Smith I wrote:
AF6AY wrote: * ... * *Or, you could read the "HF Digital Voice" article in QST of * *April, 2007. *Possibly LEARN something, rather than mumble * *along about irrelevant stuff on diamonds. *:-( * *73, Len *AF6AY Here we widely differ, the diamond will change electronics, by magnitudes ... ...or by carats. :-) One thing that seems everlasting is the RRAM attitudes by moderators. It seems that the RRAM powers almost kill- filed me for daring to speak of things radio in words not accepted by the league. :-( There was a day pause between my posting of the message you quoted while someone "considered" it. A prompt I got said that the thread on Before and After Cessation of Code Testing was CLOSED. CLOSED. Not "you are a bad boy, AF6AY," just closed. Then it OPENED, when, today? It's okay there for an obvious anonymous poster to continue ) but someone who has been around a while in radio (like over a half century) has to be "reviewed by moderators." No wonder that way-post-WWII ham radio innovation is being done in the UK, Germany, and Japan now. :-( 73, Len AF6AY |
#5
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AF6AY wrote:
... No wonder that way-post-WWII ham radio innovation is being done in the UK, Germany, and Japan now. :-( 73, Len AF6AY When my oldest son was just a child, if something was spoken which he did not like he would cover his ears and say, "DON'T SAY THAT!" r.r.a.m has taken this to new heights, but we already knew that would its' outcome, didn't we? My son was able to outgrow this behavior ... I fear some will never. JS |
#6
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On Apr 20, 3:18�pm, John Smith I wrote:
AF6AY wrote: * ... * *No wonder that way-post-WWII ham radio innovation is * *being done in the UK, Germany, and Japan now. *:-( * *73, Len *AF6AY When my oldest son was just a child, if something was spoken which he did not like he would cover his ears and say, "DON'T SAY THAT!" *r.r.a.m has taken this to new heights, but we already knew that would its' outcome, didn't we? My son was able to outgrow this behavior ... I fear some will never. Heh heh...it seems that RRAM has suddenly turned indulgent. They didn't obliterate my posting in reply to Mike Coslo or The Miccolis. :-) I think it helps to add all sorts of specifc reference quotes (which I did). Interesting that Miccolis keeps up his little game of adding question marks to quotes of my postings. I didn't write all of those yet the moderators "approve" of such games there. Also, Miccolis seemingly MUST be provocative on my postings over there...which is, apparently, okay for him but I dare not downplay anyone's enthusiasm and league-speak. "Interesting" in a weird, wired way. :-) Let's see how this all plays out... 73, Len AF6AY |
#7
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AF6AY ) writes:
Interesting that Miccolis keeps up his little game of adding question marks to quotes of my postings. No, someone is using an odd character set, or maybe an odd character to show quoting, and it's getting garbled as it gets passed on. I just checked, and I think there are three different different things being displayed. In your message, it came as " =A0 " but at least one other had more than just question marks representing that. I don't know what caused it, or who is the originating point, but someone's using an odd or proprietary character set. It looks fine to them, but others not using the same software (or at the least have things set for the same character set) can only display the character(s) as they interpret it. ANd different newsreaders will interpret differently. Hence two or three interpretations. Michael VE2BVW |
#8
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On Apr 20, 5:48�pm, (Michael Black) wrote:
AF6AY ) writes: * *Interesting that Miccolis keeps up his little game of adding * *question marks to quotes of my postings. * No, someone is using an odd character set, or maybe an odd character to show quoting, and it's getting garbled as it gets passed on. I just checked, and I think there are three different different things being displayed. *In your message, it came as " =A0 " but at least one other had more than just question marks representing that. I don't know what caused it, or who is the originating point, but someone's using an odd or proprietary character set. *It looks fine to them, but others not using the same software (or at the least have things set for the same character set) can only display the character(s) as they interpret it. *ANd different newsreaders will interpret differently. Hence two or three interpretations. Thanks for the explanation, Michael. Unfortunately, I don't buy it for Miccolis. I go straight to Google for newsgroup reading-writing, using only ASCII that is in MS Notepad. There's a reason for not using a reader program but it has nothing to do with newsgroups or their access. Miccolis has been dogging me for roughly a decade due to his whatever condition and the "question marks" came through only recently...and only on my quotes, not quotes from others in the same message. For evidence, I just look at his posts [if it quacks like a duck, looks like a duck, it probably IS a duck]. :-) 73, Len AF6AY |
#9
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"Mrak Mrogan" kb9rqz@kookhouse wrote in message
... Unless of course there is more than one Len, then you could have used the plural possessive... Grandpa and his ego qualify as two separate entities. |
#10
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AF6AY wrote:
... Miccolis has been dogging me for roughly a decade due to his whatever condition and the "question marks" came through only recently...and only on my quotes, not quotes from others in the same message. For evidence, I just look at his posts [if it quacks like a duck, looks like a duck, it probably IS a duck]. :-) 73, Len AF6AY Len: I too was suspicious of the question marks and a few other strange ascii characters, it does seems some news clients and google groups do cause some strange behaviors. Regards, JS |
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