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References: [ +from:[email protected]: 330 ]

Total 330 documents matching your query.

301. Re: LF: RE: Re: Re: erp ierp - bluff (score: 1)
Author: [email protected]
Date: Mon, 9 Oct 2006 17:50:32 EDT
Even further! You could ask him to demonstrate his understanding of the regulation and his facilities and expertise in conducting the necessary measurements. 73 de Pat G4GVW es gd dx Qth near Felixst
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-10/msg00238.html (7,955 bytes)

302. Re: LF: Re: RE: Re: Re: erp eirp - bluff (score: 1)
Author: [email protected]
Date: Tue, 10 Oct 2006 07:05:15 EDT
Hmm! That, Bryan, might be akin to asking about the polarity of the singularity from which originated the "Big Bang"! 73 de Pat G4GVW es gd dx Qth near Felixstowe, UK
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-10/msg00251.html (8,004 bytes)

303. Re: LF: Picture of the 505.053kc tansmitter... (score: 1)
Author: [email protected]
Date: Wed, 25 Oct 2006 06:30:45 EDT
Oh Boy !!! There once was a time when all shacks were this exciting. Who needs Damien Hirst and his cattle in formaldehyde "sculptures" ? 73 de Pat G4GVW es gd dx Qth near Felixstowe, UK
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-10/msg00253.html (8,248 bytes)

304. Re: LF: Very Annoying Aricle (score: 1)
Author: [email protected]
Date: Thu, 16 Nov 2006 05:30:34 EST
Andy, Does this mean that when it goes public I can buy a house in the middle of a big housing estate fully equip with "resonant antennae" and nick a bit of electrical power from each of my many neig
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-11/msg00084.html (9,068 bytes)

305. Re: LF: 807 (was TIL Grabber back online...) (score: 1)
Author: [email protected]
Date: Tue, 13 Feb 2007 16:22:54 EST
Actually John, that's not so daft ! Years ago when i first got interested in radio while still at school, i remember that a friend's father had a homebrew 160 metre station in which every bottle in t
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-02/msg00087.html (8,564 bytes)

306. Re: LF: Re: 501 to 504 (score: 1)
Author: [email protected]
Date: Tue, 27 Feb 2007 18:06:22 EST
Well done Dave. Will try to listen out for you. 73 de Pat G4GVW es gd dx Qth near Felixstowe, UK
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-02/msg00267.html (7,879 bytes)

307. Re: LF: Re: Re: TIL Grabber back online... (score: 1)
Author: [email protected]
Date: Mon, 12 Feb 2007 17:30:30 EST
807 = Electric Fire in Glass Jam Jar (for our USA friends, Jam = Jelly or Fruit Preserve) 73 es gd dx de g4gvw qthr nr felixstowe east coast UK
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-02/msg00314.html (8,468 bytes)

308. LF: Grimeton Film (score: 1)
Author: [email protected]
Date: Sat, 17 Mar 2007 05:48:58 EDT
Hi All, Just watched the Grimeton Film. Fascinating. Pity I too only know a very little German but was able to enjoy. Pity too that there was not more film of the generator etc but obviously outside
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-03/msg00254.html (8,763 bytes)

309. Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Wed, 10 Jul 2013 10:51:45 +0100
I don't know if my previous posts arrived but I still prefer to think that a "small" antenna is one plate of a capacitor and the rest of the universe is the other. This then enables the spacecraft an
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00112.html (15,738 bytes)

310. Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Thu, 11 Jul 2013 10:25:32 +0100
Thanks, Graham. Looks interesting, will have a proper read later. 73 On 10/07/13 21:41, Graham wrote: Or if you want a slightly lighter read , try this http://www.google.com/patents/US4622558 G ) Fro
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00115.html (21,112 bytes)

311. Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Thu, 11 Jul 2013 17:58:58 +0100
On first scan, Graham, I suspect that it may meet my first rule "Anything may be made to radiate if you can feed it with enough power!" 73 On 11/07/13 16:38, Graham wrote: It is only a 'lite' read as
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00117.html (23,355 bytes)

312. Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Wed, 10 Jul 2013 17:17:36 +0100
Hi Jay, That still leaves us with the anomaly that in the context we are discussing here viz. 'LF', the "spacecraft" might be an awfully small piece of real estate compared to the wavelengths we are
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00122.html (18,491 bytes)

313. Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Wed, 10 Jul 2013 19:53:38 +0100
Of course, it also holds to be true that the "rest of the universe" that is the "other plate" of my capacitor is also the "other plate" of everyone else's similar capacitor and is the common circuit
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00125.html (14,179 bytes)

314. Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Wed, 10 Jul 2013 21:11:58 +0100
AND Warren, there are those who hold that the only place from which we may observe our universe is from one of the other(s)! At this point in the narrative the little folk like me retreat deeply into
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00127.html (18,858 bytes)

315. Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Thu, 04 Jul 2013 13:36:54 +0100
Isn't it also true that for any given signal and noise field there will be an optimum antenna positioning and orientation that will achieve the best obtainable s/n. There is, likewise. an antenna con
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00271.html (15,383 bytes)

316. Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: g4gvw <[email protected]>
Date: Thu, 04 Jul 2013 16:40:43 +0100
Roelof, I remember reading about a very similar antenna arrangement early in my career. It was described by the writer (name forgotten) as "one plate of a capacitor - the other plate being the rest o
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00272.html (14,833 bytes)

317. Re: LF: Wellbrook RX loops (score: 1)
Author: pat <[email protected]>
Date: Fri, 05 Jul 2013 18:24:29 +0100
Pete, I have that book and have found it useful. However, apart from the academic arguments (we are trying to arrive at a definition for the word antenna, I think), I still prefer simply getting on w
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00299.html (21,980 bytes)

318. Re: R: Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna (score: 1)
Author: pat <[email protected]>
Date: Wed, 10 Jul 2013 12:20:26 +0100
Hi Marco, One might argue that anything may be made to radiate if fed with enough power. The nature of the "field" so created then becomes the debating or debateable point! Knowledge for its own sake
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-07/msg00306.html (14,120 bytes)

319. Re: LF: G4CFY writes off the 137kHz band (score: 1)
Author: pat <[email protected]>
Date: Sun, 08 Sep 2013 18:20:45 +0100
Warren, While many of us (particularly those of us of a certain age) have an affection stretching back to near childhood for that publication it is not for nothing that we nickname it "Practically Wi
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00295.html (12,167 bytes)

320. Re: LF: G4CFY writes off the 137kHz band (score: 1)
Author: pat <[email protected]>
Date: Sun, 08 Sep 2013 22:42:28 +0100
Actually, and to give some credit where it is due, they have recently published some interesting stuff by Stuart G8CYW on optical comms. in PW. A 30khz sub-carrier on a beam of light after transverti
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00300.html (14,266 bytes)


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