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| To: | [email protected] |
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| Subject: | Re: VLF: First VLF detection DL > EA |
| From: | Paul Nicholson <[email protected]> |
| Date: | Wed, 6 Dec 2017 12:02:54 +0000 |
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| References: | <[email protected]> <[email protected]> <CANA3B6VmLfG7AA692ajKxa6+swztKOmi-YcattQQOi_mMPzitA@mail.gmail.com> <[email protected]> <CANA3B6X8GZOzduMGcppmDHdTDQ6R5Pq6GHSUuRuuRASe9WbA7Q@mail.gmail.com> <[email protected]> <CAEduzkpDMw-kvmbU9q4DMhtzeQJdQd=5D0Xqa73auHaVGpH-8A@mail.gmail.com> <CAL4b5hBWRNbMSm7P2H6BTDTa3qPEiHNgF16R9o3A-X9ggAV6uw@mail.gmail.com> <579355A36AEE9D4FA555C45D556003AB9AAB0EB9@servigilant.vigilant.local> <[email protected]> <CANA3B6UU_AWP3S4K0XT4yju_ZKi+DM3Z8LYAOu0_KrHXR_W9aA@mail.gmail.com> <[email protected]> <[email protected]> |
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I wrote: > Decoded 'E' here, Eb/N0 = +11.7 dB. Have to work on my > sferic blanker to put in some notches as Stefan suggested. I notched out JXN and HWU (or whatever it's called) withvtfilter -e eqmap -h bp,f=17470,w=3000 -h bs,f=16400,w=600 -hbs,f=18300,w=800 and re-ran. Blanker drop factor went from 2.5% to 18% and now decodes with Eb/N0 = 26.8 dB! Maybe that's the problem with this band then, just getting the right filtering before the blanker. -- Paul Nicholson -- |
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