To: | [email protected] |
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Subject: | LF: 8969.9900Hz |
From: | [email protected] |
Date: | Wed, 01 Jan 2014 13:00:18 +0100 |
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Markus, Stefan and all,
the TX will be switched on at 1310MEZ somewhat earlier as promised for late afternoon. mode Op-4H using SpecLab GPS disziplined. GL Uwe/dj8wx Von: [email protected] Gesendet: 01.01.2014 02:58 An: [email protected] Betreff: RE: VLF: 8970 Hz Op-4H Congrats Markus and Stefan! Great news, well done. Am I interpreting correctly in the following? 17dB SNR with FFT bin width of ~ 69uHz, from ~~20uW ERP (9 meter antenna) at 175km? I will be celebrating VLF Opera tonight. Happy New Year, Jim AA5BW From: [email protected] [mailto:[email protected]] On Behalf Of Joe Hi Markus, Stefan, congrats to you, well done! 73 Joe Von: [email protected] [mailto:[email protected]] Im Auftrag von Markus Vester Stefan, we made it ;-)) DK7FC JN49IK VLF OPDS-4H correlation Range: 8969.87 ... 8970.23 Hz Wishing you all a very good start into 2014! 73, Markus (DF6NM) This morning I have reconnected the VLF amplifier and coil to the antenna, and started to transmit on 8970.000 Hz (Rb controlled). Sent a more or less uninterrupted carrier between 12:30 and 13:30, and have started an Opera-4H sequence at 13:41. With 0.33 amps up to 9 m my estimated ERP would be around 20 uW. The carrier seems to be well visible on the OK2BVG grabber (up to 10 dB in "600"). I'm now trying to reach opds-4H at DK7FC but the SNR (10 dB for the carrier in "6000") may be just a bit marginal. Best 73, Markus (DF6NM) |
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