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| To: | [email protected] |
|---|---|
| Subject: | Re: LF: Poor antennas |
| From: | Jacek Lipkowski <[email protected]> |
| Date: | Tue, 2 Aug 2011 22:37:29 +0200 (CEST) |
| In-reply-to: | <CAMFjj70bR2-tV4JjkVDAG4HbQsr-0JAvnuhQpRGNAVQO-AnqSQ@mail.gmail.com> |
| References: | <001601cc5147$61942b50$0401a8c0@xphd97xgq27nyf> <CAMFjj70bR2-tV4JjkVDAG4HbQsr-0JAvnuhQpRGNAVQO-AnqSQ@mail.gmail.com> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
On Tue, 2 Aug 2011, Warren Ziegler wrote: Don't discount the increased interference from [...] exactly.i don't have much experience with lf, but i see a big deterioration of the noise floor at vlf. in december 2006 i could receive SAQ from my balcony using a loop by ear. in december 2007 i could barely receive it. in 2008 it was all lost in the noise. the same goes for other antennas that i use. BTW it is incredible that nowadays people in north america are using sophisticated receive setups with FFT to barely receive SAQ, and just 90 years ago they used crude receivers for a 24h/7 telecomunications service between the continents without problems. the noise floor is way higher now. VY 73 Jacek / SQ5BPF |
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