Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
From: an_old_friend on Jan 1, 2:42 pm
wrote: From: on Sat, Dec 31 2005 3:29 pm wrote: From: on Dec 30, 5:56 pm wrote: Ghettos. Reminds me of some European social engineering of the 30's. Good grief, we CAN'T speak like that in here! The "lower end" of "the bands" MUST be kept open for the PRIVELEGED CLASS to beep in total comfort. So "it has always been and so shall it always be..." indeed the ARRL tried to pander to people Jim with code for extra class proposal I disagree but only slightly. Don't forget that the ARRL officers ARE the olde-tymers of morse code. Naturally they would pressure for more privileges in what they liked or could do best. There is no quantitative "factual" accounting of that opinion other than the obvious private-party exchanges (mostly off-line). The league can't admit that it does what it did and merely "sin by omission" of NOT saying anything bad about itself. [they will not since they are the self-styled "representative" of amateur radio and cannot keep memberships by being self-negative] As far as I'm concerned, the "NEED" to do morse code at any rate was an arbitrary, unneccessary regulation back in the 60s. Ancient morsemen didn't think so and pressured the government to keep that "vital" necessity (or whatever they called it before Homeland Security needed morse for "the war on terror). So the morse code test stayed in. We could have done away with Morse Code tsts as early as the first AM voice set, might have been a bit choatic at first, but it have been done logicaly have done away when ever there was first voice Not possible for the administration committed to honoring the USA membership in the ITU and its radio regulations. The first widely-heard AM radio transmission was in 1906, hardly a time for AM to become universal. Forget about FM and PM then until the vacuum tube was perfected; the first triode was created in 1906. AM broadcasting did not become practical until the 1920s. The change in amateur radio regulations COULD have been broached at WARC-79 but - as far as amateur radio was concerned - the year 1979 at WARC was the matter of the "40m issue" between amateurs and SW BC people. That didn't get any firm resolution for 24 more years (WRC-03). However, BY 2003, the IARU had swung around to eliminate the compulsory radio regulation (S25.5) requiring manual morse code testing for any license having below-30-MHz privileges. That was a change that was LONG overdue. Those that control the influences in amateur radio are generally the olde-tymers who were grounded in the older traditions...such as the "need" to demonstrate morse skill vital to a much earlier era. The league is a good example of extreme conservatism insofar as amateur radio licensing is concerned. The IARU has swung around from such extreme conservatism despite being composed of the (generally) same lot of olde-tymers. They CAN see the future more clearly than the American league (of self-distinguished gentlemen). At one time in the PAST there was a need to demonstrate manual radiotelegraphy skills. The problem with so many is that they keep on venerating the past with a passion, a nostalgia for times before they existed. Tradition is a fine thing but it loses value when it is codified into law as a requirement for all. |
#3
![]() |
|||
|
|||
![]()
From: an Old friend on Jan 1, 5:35 pm
wrote: From: an_old_friend on Jan 1, 2:42 pm wrote: From: on Sat, Dec 31 2005 3:29 pm wrote: From: on Dec 30, 5:56 pm wrote: I disagree but only slightly. Don't forget that the ARRL officers ARE the olde-tymers of morse code. Naturally they would pressure for more privileges in what they liked or could do best. well my aphasia grabed the keyboard let me think i like pander to people LIKE jim oh well No problem to me in understanding you, Mark. :-) but to your they are not the oT themselves they are the Young Men of that group (in their 50's and 60's very much like the Comunist party in the USSR near the end Ahem...that's a bit drastic in comparison, but unfortunately apt. shrug I am reamain unconvined of this "need" after all if the rules said you must qsy if you encouter govt sent morse with no code testing at all since you could just qsy if you heard any morse at all When it was the ONLY mode possible in radio, it made sense. Morse code testing was in Judgement a very helpful tool of regulation but we could have done without it if had wanted to Not TECHNICALLY. The first "radio transmitters" used by hams were the Spark jobbies. Easy enough to construct at the time of the first U.S. radio regulating agency created in 1912. A Spark transmitter - of the ham variety - could ONLY be turned on or off. Since that was the way the landline telegraph worked, morse code was adapted for radio. There weren't many other ways to communicate with those technically primitive "radios." ANY on-off code scheme would have worked. "Morse" happened to be a then-mature way to go so that was it. I doubt that any ham in 1906 tried putting a "high-power" carbon microphone in series with their antenna lead a la Reggie Fessenden...even after Fessenden proved it could be done. [no other AM broadcaster tried it for broadcasting service...har!] The vacuum tube was needed for "clean" CW generation. Once those were more perfected, damped wave oscillation ("spark") was declared forbidden for use. Rightly so since it took up many, many Kilocycles of bandwidth that only a galena crystal receiver could love. :-) MAYBE the code test could have been dropped from amateur radio licensing in 1934 when the FCC was created. Personally, I don't think so from the political situation brewing in radio and all of "electronic" communications through USA membership in the CCITT. [the CCITT morphed into the ITU once the UN was born] By 1960 the vast majority of message traffic around the world was being done by TTY. [yes, Hans, the USN DID use morse on ships] MAYBE the time was ripe then for a code-test-free license. No, said the olde-tymers of that time, they were (now generally retired) champions of morsemanship and weren't about to let go. They "knew what was best for (their) ham radio!" By 1970 the code-test-free license was an even greater possibility. Offshore-designed/built radios were showing up on the ham market and the VHF-and-up HT was a practical piece of radio goods. The olde-tyme morsemen were still adamant and getting more stern. NO #$%^!!! code-test-free license for ham radio, no sir! :-) By 1980 the code-test-free license now had supporters, even a few of the clearer-thinking olde-tyme morsemen (!)...but there were many against this (shocking) revolution. That didn't come to pass until 1990 and FCC 90-53...which resulted in the no- code-test Tech class beginning in 1991. The 1990s had the steamroller of streamlining going faster and faster...and the result being, of course, recent history in amateur regulations. |
#4
![]() |
|||
|
|||
![]()
On 1 Jan 2006 19:59:18 -0800, wrote:
From: an Old friend on Jan 1, 5:35 pm wrote: From: an_old_friend on Jan 1, 2:42 pm wrote: From: on Sat, Dec 31 2005 3:29 pm wrote: From: on Dec 30, 5:56 pm wrote: I disagree but only slightly. Don't forget that the ARRL officers ARE the olde-tymers of morse code. Naturally they would pressure for more privileges in what they liked or could do best. well my aphasia grabed the keyboard let me think i like pander to people LIKE jim oh well No problem to me in understanding you, Mark. :-) but to your they are not the oT themselves they are the Young Men of that group (in their 50's and 60's very much like the Comunist party in the USSR near the end Ahem...that's a bit drastic in comparison, but unfortunately apt. shrug agreed the states involed in choosing your allies and enemies unwisely were Much higher in that Now defunct body but the operationing mechiansisms show striking comparisions I am reamain unconvined of this "need" after all if the rules said you must qsy if you encouter govt sent morse with no code testing at all since you could just qsy if you heard any morse at all When it was the ONLY mode possible in radio, it made sense. yep then it did but just when did that stop being the case? WW I? I think Morse code testing was in Judgement a very helpful tool of regulation but we could have done without it if had wanted to Not TECHNICALLY. The first "radio transmitters" used by hams were the Spark jobbies. Easy enough to construct at the time of the first U.S. radio regulating agency created in 1912. A Spark transmitter - of the ham variety - could ONLY be turned on or off. Since that was the way the landline telegraph worked, morse code was adapted for radio. There weren't many other ways to communicate with those technically primitive "radios." ANY on-off code scheme would have worked. "Morse" happened to be a then-mature way to go so that was it. I doubt that any ham in 1906 tried putting a "high-power" carbon microphone in series with their antenna lead a la Reggie Fessenden...even after Fessenden proved it could be done. [no other AM broadcaster tried it for broadcasting service...har!] The vacuum tube was needed for "clean" CW generation. Once those were more perfected, damped wave oscillation ("spark") was declared forbidden for use. Rightly so since it took up many, many Kilocycles of bandwidth that only a galena crystal receiver could love. :-) MAYBE the code test could have been dropped from amateur radio licensing in 1934 when the FCC was created. Personally, I don't think so from the political situation brewing in radio and all of "electronic" communications through USA membership in the CCITT. [the CCITT morphed into the ITU once the UN was born] about is where I eean then it could alothough it was very conveint still in those days By 1960 the vast majority of message traffic around the world was being done by TTY. [yes, Hans, the USN DID use morse on ships] MAYBE the time was ripe then for a code-test-free license. No, said the olde-tymers of that time, they were (now generally retired) champions of morsemanship and weren't about to let go. They "knew what was best for (their) ham radio!" By 1970 the code-test-free license was an even greater possibility. Offshore-designed/built radios were showing up on the ham market and the VHF-and-up HT was a practical piece of radio goods. The olde-tyme morsemen were still adamant and getting more stern. NO #$%^!!! code-test-free license for ham radio, no sir! :-) By 1980 the code-test-free license now had supporters, even a few of the clearer-thinking olde-tyme morsemen (!)...but there were many against this (shocking) revolution. That didn't come to pass until 1990 and FCC 90-53...which resulted in the no- code-test Tech class beginning in 1991. The 1990s had the steamroller of streamlining going faster and faster...and the result being, of course, recent history in amateur regulations. _________________________________________ Usenet Zone Free Binaries Usenet Server More than 140,000 groups Unlimited download http://www.usenetzone.com to open account |
#5
![]() |
|||
|
|||
![]()
From: on Jan 2, 12:36 pm
On 1 Jan 2006 19:59:18 -0800, wrote: From: an Old friend on Jan 1, 5:35 pm wrote: From: an_old_friend on Jan 1, 2:42 pm wrote: From: on Sat, Dec 31 2005 3:29 pm wrote: From: on Dec 30, 5:56 pm wrote: but to your they are not the oT themselves they are the Young Men of that group (in their 50's and 60's very much like the Comunist party in the USSR near the end Ahem...that's a bit drastic in comparison, but unfortunately apt. shrug agreed the states involed in choosing your allies and enemies unwisely were Much higher in that Now defunct body but the operationing mechiansisms show striking comparisions To me it is just the "power" thing. As in the old folk axiom: "Power corrupts. Absolute power corrupts absolutely." Power and control are emotional narcotics. It's difficult to go "cold turkey" after having them and the rationales for continuing on the power trip are many and varied. That's what many see the league being guilty of in the past four decades. I am reamain unconvined of this "need" after all if the rules said you must qsy if you encouter govt sent morse with no code testing at all since you could just qsy if you heard any morse at all When it was the ONLY mode possible in radio, it made sense. yep then it did but just when did that stop being the case? WW I? I think I think some time close to 1960, coincident with the start of the solid-state era and the digital circuitry yet to appear en masse in the electronic component marketplace. While the late 40s and all of the 50s saw the rise of TV and the mobile two-way radios (neither of which using "CW"), the compact, power-economic transistor and IC circuitry led to a number of radio improvements: Frequency synthesis to any desired frequency with quartz crystal stability; true adoption of existing SSB techniques in much smaller packages; FM and PM as practical modulation modes in less-bulky radios; the keyboard-graphical user interface for all kinds of data modes; improved modems employing Information Theory for minimum spectral content yet maximizing data throughput. WW2 radios proved - absolutely - the value of FM for portable and mobile voice two-way radios. Even though those used tube architecture, newer and better design efforts led to rather compact designs. A case in point is the SCR-300 backpack VHF "walkie-talkie" having 18 tubes and weighing only 40 pounds with the big battery. The AN/PRC-8 family follow-on cut the weight and bulk in half just a decade later, even though they also used tubes (subminiature variety). In yet another decade, the AN/PRC-25 appeared with easy channel selection (crystal controlled), all solid-state except for the final amplifier (a tube). The AN/PRC-77 was a totally-solid- state version of the PRC-25, taking less than a decade after the first appearance of its older brother. In the civilian/commercial world, the handheld FM voice transceiver was becoming the radio of choice once the solid-state devices were available to designers. Teletype Corporation's teleprinters had proved indispensible in written messaging communications just prior to and during WW2. A written copy at each comm circuit end, identical, no specialized operator training needed to run one of those. While cost was a factor in slowness to adopt those for civilian/commercial uses, the first of the "dumb" terminals (with attached printers) would supplant those wonderful old electro- mechanical beasties. Solid-state circuitry made the "dumb" terminal possible...and the control of the peripheral paper printer. SSB for voice radios became a practical reality in the 60s and took over "the bands" (HF) for relatively narrow AM SSB, aided first by mechanical or crystal bandpass filters, then the Gingell Polyphase network (after the 70s). MAYBE the code test could have been dropped from amateur radio licensing in 1934 when the FCC was created. Personally, I don't think so from the political situation brewing in radio and all of "electronic" communications through USA membership in the CCITT. [the CCITT morphed into the ITU once the UN was born] about is where I eean then it could alothough it was very conveint still in those days You have to realize that there is a terrible INERTIA in some "regulatory" circles (standardization rather than legislative coding of regulations). Newer concepts are difficult for many to accept, those wishing to retain modes and methods that they finally learned to understand. In 1934, "radio" was only 38 years old. It had gone through the beginning arc-spark era, through the KW VLF alternator era, and suddenly thrust into "modern" radio using vacuum tubes. Receivers were now sensitive, first through the regenerative variety, then the superheterodyne (invented just 16 years prior). Many, many, Many NEW things had appeared in radio in just a generation and a half of human existance. That was difficult for many amateur radio hobbyists to keep up with back then. On-off keying morse code was already a mature mode in 1896, well-known (through telegraphy), and therefore something the standardizers and regulators could understand. All the way up to 1941, the most conventional way to transmit voice on radio was through AM and "plate modulation" of the final amplifier. That meant an extra audio amplifier having a power output (at AF) at least half that of the RF final amplifier. Bulky, costly, and a power-hog, it was restricted to broadcasters for the most part. Use of FM tossed out that big AF power amplifier for modulation and assured a constant signal level in the useful dynamic range of the receiver. Even though Ed Armstrong had PROVED the efficacy of FM prior to WW2, the INERTIA of the powers-that-be kept it from being commonplace. The needs of WW2 tossed aside a lot of the old inertia about modes and methods in radio. Some relative "youngsters" question "why couldn't we have had SSB sooner than 1960?" That's more complicated. The Telcos were ALREADY using SSB techniques in frequency-multiplexing many telephone voice channels into one pair of long-distance wires in the 1920s. That was wire-line telephone use and "not radio" (as it was known then). But, the Telco subsidiaries were adapting this new multi-channel "carrier" equipment to go on RF and did so in the 1930s. The Dutch were the first to put HF SSB multi-channel into service, Hilversum to the Netherlands Antilles. Worked just dandy and many other radio communications providers used the same sort of system. That became standardized (through use) as having four voice bandwidth channels, usually with two of the voice bandwidth channels further frequency-multiplexed to carry about 8 TTY circuits. Heckuva good spectral economy in only 12 KHz of bandspace. But, that was TELEPHONE techniques and "not radio as 'everyone' knew it." It didn't really occur to radio folks that SINGLE-CHANNEL SSB might be useful until after WW2 and then to the Army Air Corps (prior to becoming the USAF in 1948) for their long-distance bomber fleet. While "the SSB story" is awash in myths and legends of its 'development,' single-channel SSB AM became the de facto voice mode on HF for MANY different HF radio users, not just amateurs. The WHY of not having single-channel SSB radios for 20 years after the first HF SSB appeared is what I put down to INERTIA in thinking, inability to grasp the obvious. If you wish to see "inertia" in thinking in the amateur radio area, just read about a decade's worth of ham magazines of the 50s and 60s, especially the "letters to the editor" sections. Hams of that time were FIXED in certain concepts (finals HAD to be Class C, could not be "linear" due to "efficiency"), that one MUST have a humongous AF plate modulator to create AM, and "CW gets through when nothing else will" mythos. Many hams just refused to try understanding "phasing" modulation in creating AM...it HAD to be done by moving the Class C final's plate supply "up and down" just like the classic RF envelope depiction of AM in all the textbooks. :-) [the basic math behind AM, FM, and PM modulation had been worked out by 1915 and still holds true today] If - and only if - the rest of the radio world had NOT been advancing in technology, radio amateurs MIGHT still claim justification for retaining the manual code test. Turning an RF carrier on-off is a very simple concept, easy for anyone to understand. All the other modes take some head-scratching to grasp how it is done. Inertia in learning is safe, easy, a survival tactic...and it improves self-esteem of the "operators." :-) |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
ARRL Propose New License Class & Code-Free HF Access | Antenna | |||
Another D-H* NCVEC proposal | Policy | |||
FCC Amateur Radio Enforcement Letters for the Period Ending May 1, 2004 | General | |||
Why You Don't Like The ARRL | Policy | |||
There is no International Code Requirement and techs can operate HF according to FCC Rules | General |