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On Mar 19, 7:45?am, "an_old_friend" wrote:
On Mar 19, 1:26 am, John Smith I wrote: John Smith I wrote: Over in RRAM there seems to be much debate on the need for HS data communications, strange ... debate I call it whing maybe you are being polite Not "whining." It's a technical barrier to reach "high speed" approaching T1 rates on small slices of bandwidth. ALL radio services face that same problem. If at least 1 MHz of the 10m band could be used - at the expense of ALL users of that portion of EM spectra, there would be a chance for at least NVIS propagation at high rates. That is NOT likely to happen for a minority of High Speed fans to go against the overwhelming majority. Mere resistance to the establishment is NOT a "just cause." One MUST justify that resistance in order to begin changing things. That justification is what the Students Wildly Indignant about Nearly Everything (SWINE) usually overlook. For "high speed" (really medium-low speed), the commercial side of communications has developed the 56 KBPS modem that works on a 3 KHz bandwidth. That is starting to bump up against Shannon's Law, an extremely real technical barrier. [it doesn't exceed it but it is close enough to almost reach out and touch it...] All electronics and radio works by the same Laws of Physics. Those Laws are immune to the feelings, emotions, and general imprecations of mankind. One MUST learn those Laws and work WITH them in order to get them to work FOR you. 73, Len AF6AY |
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