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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+NEW\s+VLF\s+antenna\s*$/: 12 ]

Total 12 documents matching your query.

1. Re: LF: NEW VLF antenna (score: 1)
Author: "[email protected]" <[email protected]>
Date: Thu, 18 Apr 2019 16:11:04 +0200
Hallo, https://incompliancemag.com/creating-a-novel-compact-antenna-that-can-go-where-radios-cant/ Friends are there any news? Home made new antenna?? '73 from Richard - IK7FMO
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00126.html (9,769 bytes)

2. Re: LF: NEW VLF antenna (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Thu, 18 Apr 2019 14:30:42 +0000
From the article: "Early tests proved that signals sent from the transmitter to a receiver placed 100 feet away produced VLF radiation up to 300 times more efficiently than other antennas with simila
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00127.html (11,065 bytes)

3. Re: LF: NEW VLF antenna (score: 1)
Author: Warren Ziegler <[email protected]>
Date: Thu, 18 Apr 2019 10:48:11 -0400
I read the original report, the piezoelectric antenna is 300x more efficient than a conventional antenna of the same size (10cm). Of course a 10cm vertical is not too useful at VLF!  73 Warren On Thu
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00128.html (11,163 bytes)

4. Re: LF: NEW VLF antenna (score: 1)
Author: "P. W. Schnoor" <[email protected]>
Date: Thu, 18 Apr 2019 17:37:05 +0200
Hi Richard, Yes! I removed the cases from some old VLF-crystals (got from ancient VLF-TX). Driving them with approx. 100 mW (those "bending" vibrators could handle that easily) I reached approx. 5 me
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00129.html (9,434 bytes)

5. Re: LF: NEW VLF antenna (score: 1)
Author: Claudio Pozzi <[email protected]>
Date: Thu, 18 Apr 2019 18:32:04 +0200
My 20 kHz piezo antenna May be Telettra in the '69 forgot to patent this 20 kHz antenna? Or may be SLAC re-discovered the xtal (pardon LiNbO3 ) resonator? 73 de Claudio, ik2pii -- ZE-Light e ZE-Pro:
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00130.html (14,631 bytes)

6. Re: LF: NEW VLF antenna (score: 1)
Author: DK1IS <[email protected]>
Date: Thu, 18 Apr 2019 19:31:13 +0200
Am 18.04.2019 um 16:11 schrieb [email protected]: Hallo, https://incompliancemag.com/creating-a-novel-compact-antenna-that-can-go-where-radios-cant/ Friends are there any news? Home made new antenna??
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00131.html (14,563 bytes)

7. Re: LF: NEW VLF antenna (score: 1)
Author: Roman <[email protected]>
Date: Fri, 19 Apr 2019 16:35:43 +0300
TKS Tom! Can't find it in my box- may be not RXed email by yandex.ru Yes, I see it a week ago approximately and post it to blacksheep. TNX for tech details! Good Easter! And Congrats pass World Radio
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00132.html (14,420 bytes)

8. RE: LF: NEW VLF antenna (score: 1)
Author: "Clemens Paul" <[email protected]>
Date: Fri, 19 Apr 2019 17:28:05 +0200
Hi Tom, interesting experiment! Do you think it is possible for a more true comparison to compare the quartz resonated wire antenna against he same wire resonated conventionally by an inductor regard
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00135.html (15,632 bytes)

9. Re: LF: NEW VLF antenna (score: 1)
Author: DK1IS <[email protected]>
Date: Fri, 19 Apr 2019 18:29:40 +0200
Am 19.04.2019 um 17:28 schrieb Clemens Paul: Hi Tom, interesting experiment! Do you think it is possible for a more true comparison to compare the quartz resonated wire antenna against he same wire r
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00136.html (10,490 bytes)

10. RE: LF: NEW VLF antenna (score: 1)
Author: "Clemens Paul" <[email protected]>
Date: Fri, 19 Apr 2019 18:52:41 +0200
Hi Tom, Looking forward. Maybe it's also worth just to run the quartz without any wire connected to it and compare the signal and BW against with wire connected. 73 Clemens DL4RAJ
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00138.html (11,679 bytes)

11. Re: LF: NEW VLF antenna (score: 1)
Author: DK1IS <[email protected]>
Date: Fri, 19 Apr 2019 20:39:25 +0200
Am 19.04.2019 um 18:52 schrieb Clemens Paul: Hi Tom, yes, that should be possible - IŽll do it the next days and report on the results here. Looking forward. Maybe it's also worth just to run the qua
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00140.html (10,953 bytes)

12. Re: LF: NEW VLF antenna (score: 1)
Author: Claudio Pozzi <[email protected]>
Date: Sat, 20 Apr 2019 11:10 +0200
63.1 dBm - 32.1 dBm = 31.0 dB : the quartz adapted antenna radiated power is 1/1000 respect the T-Marconi, so the efficiency is 0.1% Good DX ;-) Claudio, IK2PII -- ZE-Light e ZE-Pro: servizi zimbra
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-04/msg00141.html (16,693 bytes)

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