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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+TXing\s+WSPR\/MF\s+on\s+an\s+indoor\s+loop\,\s+part\s+2\s*$/: 8 ]

Total 8 documents matching your query.

1. Re: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: DK7FC <[email protected]>
Date: Wed, 30 Jan 2019 18:22:19 +0100
Hi MF, Last night i've been at home while transmitting on the indoor loop again. The TX power was doubled, i.e. about 2 mW ERP, based on Rik's convincing calculation/estimation. The temperature depen
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-01/msg00442.html (13,610 bytes)

2. Re: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: Michael WALTERS <[email protected]>
Date: Wed, 30 Jan 2019 21:57:56 +0000 (GMT)
Hi I Still recommend hi value S/Mica crimped.Voltage ability very good too. They do not heat noticeably so remain stable. I found a large box of multiple values and mixed as required. Used at 137 als
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-01/msg00444.html (14,242 bytes)

3. Re: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: Dimitrios Tsifakis <[email protected]>
Date: Thu, 31 Jan 2019 11:25:55 +1100
Hi Stefan, In my experience these polypropylene capacitors when they fail, they just lose some capacitance. I think they call it 'self healing', maybe they imply that when they fail there is no short
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-01/msg00445.html (14,773 bytes)

4. RE: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: "Clemens Paul" <[email protected]>
Date: Thu, 31 Jan 2019 07:35:31 +0100
Hi Dimitris, reactive near field: lambda/ (2*pi) 73 Clemens DL4RAJ
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-01/msg00446.html (15,558 bytes)

5. Re: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: Lawrence Galea <[email protected]>
Date: Thu, 31 Jan 2019 20:56:56 +0100
Hi Thinking aloud, it is reasonable that the 6.8 nf capacitor heats more than the 2.2 nf since its impedance will be approximately 1/3 of the 2.2 nf one and when subjected to the same voltage will pa
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-01/msg00460.html (14,340 bytes)

6. Re: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: DK7FC <[email protected]>
Date: Sun, 03 Feb 2019 14:58:04 +0100
...indeed! Since more than 72 hours i'm running the WSPR transmission in 25% duty cycle (each 8 minutes). First i tuned to 20 A antenna current and the temperature / antenna current changes were much
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-02/msg00018.html (13,150 bytes)

7. Re: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: Markus Vester <[email protected]>
Date: Sun, 3 Feb 2019 22:44:44 +0000 (UTC)
A little snapshot from the DL0AO LF/MF-grabber... 73, Markus --Ursprüngliche Mitteilung-- Von: DK7FC <[email protected]> An: rsgb_lf_group <[email protected]> Verschickt: So, 3. Feb.
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-02/msg00026.html (11,032 bytes)

8. Re: LF: TXing WSPR/MF on an indoor loop, part 2 (score: 1)
Author: DK7FC <[email protected]>
Date: Mon, 04 Feb 2019 00:07:07 +0100
Hi Markus, What a surprise, many thanks :-) This was just a short test. I just transmitted my call 4 times without an announcement and you picked it up. Very attentive :-) I never thought that someon
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-02/msg00027.html (12,058 bytes)


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