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In article , m II wrote:
Anyone have a way of measuring the varying efficiencies of the following? Let's say 5 to 20 MHz frequency range. This would be the base number for comparison, assign it a one: a: Straight connection of a random long wire antenna The others... b: The same long wire connected through a television (75/300 ohm variety) c: Same antenna with a 9:1 ratio transformer I'm assuming everything else remaining the same. I'm interested in the variation, shown ratio wise, between the above. Are there any handy online calculators for this? The problem is that the variations come from characteristics (like properties of materials and the physical construction) that are easier to measure than to model. Buzzword: Network Analyzer. Mark Zenier Googleproofaddress(account:mzenier provider:eskimo domain:com) |
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