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Total 6 documents matching your query.

1. Topband: superdirectivity (score: 1): Author: Sam Dellit" <dellits@onthenet.com.au (Sam Dellit); Date: Sat, 24 Mar 2001 08:20:58 +1000; g'day to all on the topband reflector the topic of supergain and superdirectivity was at the cutting edge of antenna technology in the 40s and 50s. ultimately it was determined experimentally that on; /archives//html/Topband/2001-03/msg00125.html (8,284 bytes)
2. Topband: superdirectivity (score: 1): Author: k6se@juno.com (k6se@juno.com); Date: Fri, 23 Mar 2001 20:46:36 -0800; ".... but i wonder whether a closer approximation (to superdirectivity, not supergain) is achievable with receive only antennas. short non-resonant antennas are entirely acceptable for receiving purp; /archives//html/Topband/2001-03/msg00127.html (8,257 bytes)
3. Topband: superdirectivity (score: 1): Author: Sam Dellit" <dellits@onthenet.com.au (Sam Dellit); Date: Sun, 25 Mar 2001 11:45:12 +1000; g'day earl and the topband gang thanks for taking the time to reply i am slowly taking on board tom's assertion that ultimately the s/n on topband is determined by the directivity of the antenna. it; /archives//html/Topband/2001-03/msg00129.html (8,267 bytes)
4. Topband: superdirectivity (score: 1): Author: john.devoldere@pandora.be (John Devoldere ON4UN); Date: Sun, 25 Mar 2001 04:23:30 -0000; BTW that concept is clearly described in y book (LOW BANDDX-ing), hi... 73 John, ON4UN -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contesting.com Administrative requests; /archives//html/Topband/2001-03/msg00131.html (7,171 bytes)
5. Topband: superdirectivity (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Sun, 25 Mar 2001 13:37:26 +0200; The assumption that S/N is determined by directivity is correct, anyway this is a theorical perspective assuming perfect and noiseless receivers. In the real life this concept works if the band noise; /archives//html/Topband/2001-03/msg00132.html (8,183 bytes)
6. Topband: superdirectivity (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sun, 25 Mar 2001 07:21:55 -0500; It's not my assertion, it is a well-established fact echoed by many. It also applies to any receiving system, no matter what the frequency unless the system is limited by INTERNAL noise. For example; /archives//html/Topband/2001-03/msg00133.html (11,474 bytes)

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