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Total 3 documents matching your query.

1. ULF: A first step on the 100 km band (score: 1): Author: DK7FC <[email protected]>; Date: Wed, 08 Jun 2016 11:15:59 +0200; Hi all, I've got a first result with my ULF project: One of the ideas to generate and radiate a signal on the 100 km band to use a ferrite power transformer with using two E cores out of N27 material; /rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00041.html (12,212 bytes)
2. Re: ULF: A first step on the 100 km band (score: 1): Author: DK7FC <[email protected]>; Date: Thu, 09 Jun 2016 22:18:10 +0200; Hi Paul, It's to early to start an ULF experiment between me and you. But some preparations could be helpful. How do you estimate the sensitivity of your RX system on 2970 Hz? Is the spectrum clean o; /rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00045.html (12,088 bytes)
3. Re: ULF: A first step on the 100 km band (score: 1): Author: DK7FC <[email protected]>; Date: Fri, 10 Jun 2016 18:01:59 +0200; Hi all, I've added a small air gap to my transformer and increased the number of turns on the transformer (which meanwhile just acts as a loading coil). Now there are 7 layers and about 1400 turns. T; /rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00047.html (13,144 bytes)

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