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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+RE\:\s+MF\s+tonite\s*$/: 13 ]

Total 13 documents matching your query.

1. Re: LF: Re: RE: MF tonite (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Mon, 17 Sep 2012 23:10:12 +0200
Hi Ken, OK, but if you have no problems with the current filter, you will have no problems on 472 as well. So it might be sufficient just to readjust it to the new band next year. Anyway, the mechani
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00004.html (22,227 bytes)

2. RE: LF: Re: RE: MF tonite (score: 1)
Author: "Ken" <[email protected]>
Date: Thu, 13 Sep 2012 19:43:34 +0100
Stefan. Thank you for the info, maybe sometime you will be able to post the circuit? 73. Ken M0KHW Ah yes, Thomas was faster, damn ;-) Another image from the experimental setup, using source follower
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00060.html (15,437 bytes)

3. Re: LF: Re: RE: MF tonite (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Thu, 13 Sep 2012 21:03:13 +0200
Hi Ken, OK but later. I want to try some modifications, i.e. using the 500 Ohm input and the 18 kOhm output, to have some gain. If this does not affect the matching, i would prefer that... 73, Stefan
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00230.html (14,061 bytes)

4. RE: LF: Re: RE: MF tonite (score: 1)
Author: "Ken" <[email protected]>
Date: Thu, 13 Sep 2012 20:47:28 +0100
Hi Stefan. Fully understand. 73. Ken. M0KHW Hi Ken, OK but later. I want to try some modifications, i.e. using the 500 Ohm input and the 18 kOhm output, to have some gain. If this does not affect the
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00258.html (16,240 bytes)

5. RE: LF: Re: RE: MF tonite (score: 1)
Author: "Ken" <[email protected]>
Date: Sun, 16 Sep 2012 21:07:12 +0100
Hi Stefan. Thank you for all the filter info, definitely interested in them, at present for 500kHz I have a homebrew filter using two Toko transformers in between the antenna socket and two stage rx
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00306.html (18,934 bytes)

6. RE: LF: Re: RE: MF tonite (score: 1)
Author: "Ken" <[email protected]>
Date: Mon, 17 Sep 2012 21:42:41 +0100
Hi Stefan. I have resent this reply, I think the original with an attachment may have been blocked The answers to your questions are. My RX is a Kenwood TS140S. Antenna, 102ft doublet centre fed with
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00339.html (21,637 bytes)

7. Re: LF: Re: RE: MF tonite (score: 1)
Author: "C. Groeger" <[email protected]>
Date: Sat, 15 Sep 2012 09:59:41 +0200
Stefan, Is there an audible better Performance of ur rx with the mechanical filter? 73, df5qg Christian Groeger
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00452.html (14,538 bytes)

8. Re: LF: Re: RE: MF tonite (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Thu, 13 Sep 2012 13:25:42 +0200
Ah yes, Thomas was faster, damn ;-) Another image from the experimental setup, using source followers https://dl.dropbox.com/u/19882028/MF/Mechanical_filter_with_source-followers.JPG The results have
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00507.html (13,591 bytes)

9. LF: Re: RE: MF tonite (score: 1)
Author: "Thomas Rosenkranz" <[email protected]>
Date: Thu, 13 Sep 2012 13:12:45 +0200
Hy Ken, the name of the mechanical filter is FZ02 http://www.oppermann-electronic.de/html/hf-spezialbauteile.html http://dm4tr.bplaced.net/index.php?section=Receiver 73 Thomas DM4TR Hi Stefan. What m
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00526.html (12,426 bytes)

10. Re: LF: Re: RE: MF tonite (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Mon, 17 Sep 2012 01:21:23 +0200
Hi Ken, My thoughts, Am 16.09.2012 22:07, schrieb Ken: Hi Stefan. Thank you for all the filter info, definitely interested in them, at present for 500kHz I have a homebrew filter using two Toko trans
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00591.html (18,775 bytes)

11. Re: LF: Re: RE: MF tonite (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Sat, 15 Sep 2012 02:24:25 +0200
PS: You know, you can use the input stage directly as an active E field antenna which is for MF only. You would prevent the overload of a poor RX by MF AM BCD stations... 73, Stefan Am 15.09.2012 02:
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00676.html (17,141 bytes)

12. RE: LF: Re: RE: MF tonite (score: 1)
Author: "Ken" <[email protected]>
Date: Sun, 16 Sep 2012 21:11:40 +0100
Hi Stefan. I should have said was there to remove any BC overload which it does vey well Ken M0KHW Hi Ken, I just tried to use the 500 Ohm input and the 18k Ohm output. It works UFB but then i got wo
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00749.html (17,998 bytes)

13. Re: LF: Re: RE: MF tonite (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Sat, 15 Sep 2012 02:06:49 +0200
Hi Ken, I just tried to use the 500 Ohm input and the 18k Ohm output. It works UFB but then i got worried about destroying the filter due to the up-transformation on the input (the max. input voltage
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00781.html (16,600 bytes)

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