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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+On\s+air\s+again\s+in\s+LF\s+WSPR\-15\s*$/: 13 ]

Total 13 documents matching your query.

1. LF: On air again in LF WSPR-15 (score: 1)
Author: VIGILANT Luis Fernández <[email protected]>
Date: Wed, 21 Nov 2018 09:25:44 +0000
Hi LF After some time of forced QRT Im again on air transmitting LF WSPR-15 Tried a first transmission in WSPR-2 yesterday at 19:30 and all the rest were WSPR-15 at minute 15 and 45 Found a safe comb
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00474.html (12,229 bytes)

2. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: ik1hgi Qrss Qrpp <[email protected]>
Date: Wed, 21 Nov 2018 12:18:32 +0100
Hi LF   After some time of forced QRT Im again on air transmitting LF WSPR-15   Tried a first transmission in WSPR-2 yesterday at 19:30 and all the rest were WSPR-15 at minute 15 and 45 Found a safe
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00476.html (17,456 bytes)

3. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: N1BUG <[email protected]>
Date: Wed, 21 Nov 2018 07:03:38 -0500
Congratulations Luis. I copied you the first time in the slot before my sunset. You were in command for some time, then it switched over to Stefan. I just uploaded some additional spots this morning.
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00479.html (15,123 bytes)

4. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: DK7FC <[email protected]>
Date: Wed, 21 Nov 2018 14:00:23 +0100
Hi Luis, thanks for the nice readably summary report. Oh yes it was an impressing night and good resultsfor us. I saw you were decoded at SM2DJK which is a good distance, and R7NT was seen at 2E0ILY.
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00482.html (14,618 bytes)

5. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: Chris Wilson <[email protected]>
Date: Wed, 21 Nov 2018 13:40:22 +0000
Hello DK7FC, Is the H bridge amp a published design Stefan, and if not, would you consider posting it please? :) -- Best regards, Chris mailto:[email protected]
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00485.html (10,529 bytes)

6. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: DK7FC <[email protected]>
Date: Wed, 21 Nov 2018 15:06:53 +0100
Hi Chris, Yes i published it on Dropbox a few years ago but i think the link doesn't work any more. I attach the two images here, the size is small enough. 73, Stefan Am 21.11.2018 14:40, schrieb Chr
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00486.html (11,973 bytes)

7. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: Andy Talbot <[email protected]>
Date: Wed, 21 Nov 2018 14:23:04 +0000
Contragulations,  That is the ONLY other design I have seen for a LF amplifier using directly rectified mains. apart from my own half-bridge version http://g4jnt.com/137tx.pdf     After building that
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00488.html (13,116 bytes)

8. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: Chris Wilson <[email protected]>
Date: Thu, 22 Nov 2018 10:36:08 +0000
Hello DK7FC, Thanks for the schematics Stefan! Do you know exactly what toroid you used (assuming it is a toroid) for the gate driver transformer please? Would the output level of the Si chip in a QR
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00513.html (10,477 bytes)

9. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: DK7FC <[email protected]>
Date: Thu, 22 Nov 2018 12:09:53 +0100
Hi Chris, Am 22.11.2018 11:36, schrieb Chris Wilson: Thanks for the schematics Stefan! Do you know exactly what toroid you used (assuming it is a toroid) for the gate driver transformer please? I tri
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00514.html (14,066 bytes)

10. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: Daniele Caccia <[email protected]>
Date: Thu, 22 Nov 2018 12:40:45 +0100
Hi LF   After some time of forced QRT Im again on air transmitting LF WSPR-15   Tried a first transmission in WSPR-2 yesterday at 19:30 and all the rest were WSPR-15 at minute 15 and 45 Found a safe
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00515.html (16,224 bytes)

11. RE: LF: On air again in LF WSPR-15 (score: 1)
Author: VIGILANT Luis Fernández <[email protected]>
Date: Fri, 23 Nov 2018 09:28:32 +0000
Grazie Danielle WSPR-15 is amazing. But I was running 2.5A RF current at that time. And that helps ;-) 73 de Luis EA5DOM De: [email protected] [mailto:owner-rsgb_lf_group@blacksheep.
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00536.html (21,011 bytes)

12. Re: LF: On air again in LF WSPR-15 (score: 1)
Author: Daniele Caccia <[email protected]>
Date: Fri, 23 Nov 2018 10:40:51 +0100
Grazie Danielle   WSPR-15 is amazing. But I was running 2.5A RF current at that time. And that helps ;-)   73 de Luis EA5DOM   De: [email protected] [mailto:owner-rsgb_lf_group@blac
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00537.html (20,883 bytes)

13. RE: LF: On air again in LF WSPR-15 (score: 1)
Author: VIGILANT Luis Fernández <[email protected]>
Date: Fri, 23 Nov 2018 10:23:42 +0000
Hi LF PA Have just seen this new MOSFET drivers with galvanic isolation. Seems very nice for QRO PAs using mains voltage https://www.st.com/content/st_com/en/products/power-management/mosfet-and-igbt
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00539.html (14,324 bytes)


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