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On Fri, 4 Mar 2005 11:11:32 -0600, (Richard
Harrison) wrote: "Physics is not application-selsctive." True. The laws of physics are inviolable. .... I would be surprised if some final filter were not used to guarantee compliance with the rules. Hi Richard, Yes, that would be the technical marvel of the ages, but just like our rigs, even the biggest FM transmitters bend to the necessity for output filtering: http://www.broadcast.harris.com/prod...%20Bro%2DB.pdf There is an amusing claim, however, for their power module(s) "Each module is conservatively rated to produce 850W of power into a system VSWR of 1.5:11." Not a very good copy editing job is my guess. Looking at the "efficiency" side of the equation is simple here too: Power Consumption (nominal) • Z2CD: 4.0kW at 2.2kW output power 55% • Z3.5CD: 6.1kW at 3.75kW output power 61% • Z5CD: 7.9kW at 5kW output power 63% • Z7.5CD:11.7kW at 7.5kW output power 64% • Z10CD: 15.3kW at 10kW output power 65% • ZD20CD:31kW at 20kW output power 65% 73's Richard Clark, KB7QHC |
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