To: | <rsgb_lf_group@blacksheep.org> |
---|---|
Subject: | RE: LF: DK7FC in Todmorden at 2970 Hz |
From: | <hvanesce@comcast.net> |
Date: | Thu, 8 Jun 2017 03:06:10 -0400 |
Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20161114; t=1496905577; bh=b2sL3giq7f4Nww4mxECX0kYlDGvhS3uMxuZ5t8nDo90=; h=Received:Received:From:To:Subject:Date:Message-ID:MIME-Version: Content-Type; b=H+ozZwLUUZ27/mleveSDm4Jjj5h105OQckzkeE8U3LU0w5rUrle+NvNyXFoi4LnxL Wq5tZHMv60bmgO1C1dgRF9pT0kn0rZXHTYA1KHpOsDPEEHTGSPnlft7DF1ZpfodvYh mOB9j2iPV1WvFsTkjTAANgE2OAFJ0mwKhYblFE5QNOpM13Nw4+iXLX0gG9J5bUbmQL 6pqmLkwYM6dgZ9K08/YEKhY5qMGVm7gj+liDE3pXCccHPDbfXqjj+tO6AHikuE+3Ck MfOv+Z7KPDSopNeCgMsLll1F1P9fn8Lp5uldAy5NXDHFR9XirVMplHRrqoaXULBVn0 wQHzaHqt5c3zw== |
In-reply-to: | <5937A202.2040909@posteo.de> |
References: | <93ae1c86-9b2e-8313-069f-8b0d941b49c8@abelian.org> <15b0c931d98-7d4f-1e43e@webprd-a90.mail.aol.com> <00d601d2a67b$6e472430$4ad56c90$@comcast.net> <4300a482-e7b9-17c3-5ece-7bfa12b4a352@abelian.org> <696b4e5b-2b63-e5e5-c91c-3b2f78ee9f82@abelian.org> <04ad01d2df2a$7d452670$77cf7350$@comcast.net> <5937A202.2040909@posteo.de> |
Reply-to: | rsgb_lf_group@blacksheep.org |
Sender: | owner-rsgb_lf_group@blacksheep.org |
Thread-index: | AQGEk4+ydSDvSCCmGQr1u7Smz8OzTwIA8C14AjH/GEsBmZSsEgGe/AlsAdBQwBECIfkBuqJcKhYQ |
Stefan, Yes, working on a 1E-1 to 1E1 Hz plot now. Very interested in what FDTD thinks 1E-1 to 1E0 kHz looks like. Guessing 1E-1 to 1E0 Hz will be smooth but even in that case it's hard to guess at what lower frequency the 10dB difference between FDTD and NAVELEX at 1E0 Hz will diminish to 3dB or less. 73, Jim AA5BW -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of DK7FC Sent: Wednesday, June 7, 2017 2:50 AM To: rsgb_lf_group@blacksheep.org Subject: Re: LF: DK7FC in Todmorden at 2970 Hz Hello Jim, Can you extend that plot to 1E-1...1E1 kHz? 73, Stefan Am 07.06.2017 03:07, schrieb hvanesce@comcast.net: > Paul, > > Thanks for your reply below. In available time I'm trying to verify that FDTD > can be helpful for the ULF tests (and vice versa, that the ULF experimental > results can validate FDTD for ULF). So far I've found three positive > indicators based on Stefan's tests at 2.97 kHz. One indicator is correlation > of (a) extrapolated signal strength Cumiana/Todmorden, adjusted for antenna > current (and including error margin for estimated sensitivity at Cumiana), > with (b) the FDTD characteristics in the attached. For that purpose > (particularly for comparing signal strengths extrapolated from SNR at known > integration time and estimated receiver sensitivity), should I consider the > effective integration time of your 9-day stack of 11-hour segments to be > 356400 seconds i.e. bandwidth 2.8 uHz? > > Thanks, > > Jim AA5BW > |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | Re: VLF: VLF articles about radio amateurs, jcraig |
---|---|
Next by Date: | Re: LF: 1000 character EbNaut message on LF?, Markus Vester |
Previous by Thread: | Re: LF: DK7FC in Todmorden at 2970 Hz, DK7FC |
Next by Thread: | LF: Bugfix for ebnaut_ifft utility, Markus Vester |
Indexes: | [Date] [Thread] [Top] [All Lists] |