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#1
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I suggest that it still lies in the areas of LC filters, resistor
networks and individual transistor (or valve) operation. Because, although the bulk of our circuit complexity will soon lie in a single DSP chip, the interfaces to that chip, to us at the baseband end and then to the antenna at the RF end, still depend upon traditional electronic (pre-IC) practice. How, then, can it be possible to issue Ham Radio licences to those who cannot tell one end of a resistor from the other? How, then, can it ever be possible to issue Ham Radio licences to those of 6 years of age who lack the mathematical capability to understand the evaluation of resistances in parallel? The answer is, that it cannot be possible, and that licences issued to such people are CB licences, no more, no less. Syllabi for Ham Radio exams should resort to the traditional subjects of familiarity with elemental electrical and electronic components together with a modernised examination of the ability to write software and understanding of DSP theory. |
#2
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![]() nntp.aioe.org wrote: Syllabi for Ham Radio exams should resort to the traditional subjects of familiarity with elemental electrical and electronic components together with a modernised examination of the ability to write software and understanding of DSP theory. Haven't we Bean through this already? |
#3
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G1LVN wrote:
nntp.aioe.org wrote: Syllabi for Ham Radio exams should resort to the traditional subjects of familiarity with elemental electrical and electronic components together with a modernised examination of the ability to write software and understanding of DSP theory. Haven't we Bean through this already? Someone forgot to take his meds. It would be nice if my newsreader could pick out an author from the text for automatic plonking, instead of having to chase behind catching up on all of his aliases. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Posting from Google? See http://cfaj.freeshell.org/google/ "Applied Control Theory for Embedded Systems" came out in April. See details at http://www.wescottdesign.com/actfes/actfes.html |
#4
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![]() nntp.aioe.org wrote: How, then, can it be possible to issue Ham Radio licences to those who cannot tell one end of a resistor from the other? Resistors may be inserted either way around :-) |
#5
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![]() Mike Gathergood (G4KFK) wrote: nntp.aioe.org wrote: How, then, can it be possible to issue Ham Radio licences to those who cannot tell one end of a resistor from the other? Resistors may be inserted either way around :-) Nah the gold end should always be reverse biased, stops the heat bands by a couple of bottleBells ;-) |
#6
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![]() "Mike Gathergood (G4KFK)" wrote in message oups.com... nntp.aioe.org wrote: How, then, can it be possible to issue Ham Radio licences to those who cannot tell one end of a resistor from the other? Resistors may be inserted either way around :-) Surely you must know that in Chippenham they have polarised Resistors. Stupid Boy! |
#7
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How, then, can it be possible to issue Ham Radio licences
to those who cannot tell one end of a resistor from the other? Resistors may be inserted either way around :-) Damn, and here all this time I thought the resistance would be higher inserting the resistor backwards Hi Hi |
#8
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nntp.aioe.org wrote:
Because, although the bulk of our circuit complexity will soon lie in a single DSP chip, the interfaces to that chip, to us at the baseband end and then to the antenna at the RF end, still depend upon traditional electronic (pre-IC) practice. How, then, can it be possible to issue Ham Radio licences to those who cannot tell one end of a resistor from the other? Gareth, would you please enlighten me. Apart from reading the value and, for aesthetic reasons - what is the difference between the two ends? Syllabi for Ham Radio exams should resort to the traditional subjects of familiarity with elemental electrical and electronic components together with a modernised examination of the ability to write software and understanding of DSP theory. WTF has software and DSP theory got to do with it? Apart from your egotistical desire to score points that is. Though, on past form, you don't seem to come out too well when you discuss your theories with people that do know what they are talking about. I might suggest that construction of aerials, amplifiers etc., and the knowledge to predict propagation modes and then utilise that knowledge to make contacts with people far away is just as valid as knowing one end of a resistor from the other. Or a multitude of other reasons why people become radio amateurs given that this is such a diverse hobby. Steve. |
#9
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![]() "Steve" wrote in message . uk... I might suggest that construction of aerials, amplifiers etc., and the knowledge to predict propagation modes and then utilise that knowledge to make contacts with people far away is just as valid as knowing one end of a resistor from the other. Or a multitude of other reasons why people become radio amateurs given that this is such a diverse hobby. Good advice Steve. There are even people who buy s/h homebrew equipment (eg a QRP radio) at rallies and probably take great delight in using it. -- 73 Brian www.g8osn.org.uk |
#10
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On Sat, 09 Sep 2006 17:49:20 GMT, "Brian Reay"
wrote: "Steve" wrote in message .uk... I might suggest that construction of aerials, amplifiers etc., and the knowledge to predict propagation modes and then utilise that knowledge to make contacts with people far away is just as valid as knowing one end of a resistor from the other. That's simple. One end is the goesinto while the other is the goesouttta unless you hook it up backwards. Then due to great foresight from the engineers the two ends will automatically swap functions making the device appear to be bidirectional. Or a multitude of other reasons why people become radio amateurs given that this is such a diverse hobby. Some of us use it for exercise: http://www.rogerhalstead.com/ham_files/Tower29.htm Or the whole project http://www.rogerhalstead.com/ham_files/tower.htm Although I've been known to use the exercise excuse so I can put up more antennas. Unfortunatley I have to get the 144 and 440 arrays down. I already have the mast down to about the 6-meter yagi and have rebuilt the PST-61 rotator. Good advice Steve. There are even people who buy s/h homebrew equipment (eg a QRP radio) at rallies and probably take great delight in using it. Lets see... My first home brew rig was about 90 Watts with a pair of 6L6s and a 6AG7 oscillator. Not exactly QRP. The next home brew projct was a 6C21 HF amp (those things are big) and then a pair of 813s. on HF. Both home brew but a long way from QRP with the exception of the time when I blew the plate out of a 6C21 and it turned into a dummy load. I wish I still had that thing if for nothing more than a conversation piece. OTOH there is a fair amount of HF QRP around this area (Central Michigan) with some of the rigs getting fairly sophisticated. There is a lot of developmet work going on in digital here. The local system can broadcast the latest RADAR to the laptops of those of us out storm chasing. APRS (if set up in the car) gives your coordinates back to the EOC. They are working on a portable TV Repeater for a number of reasons in addition to being used for damage assesment. There's also the networking of packet, repeaters, and the internet. We have ham stations in both the EOC and the mobile EOC unit. There was talk of adding HF ham stations to both locations. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com |
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