Re: VLF: 8970 Hz Op-4H

To:	<[email protected]>
Subject:	Re: VLF: 8970 Hz Op-4H
From:	"Markus Vester" <[email protected]>
Date:	Tue, 31 Dec 2013 19:14:53 +0100
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Cc:	"Paul" <[email protected]>
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Stefan, we made it ;-))

DK7FC JN49IK VLF OPDS-4H correlation     Range: 8969.87 ... 8970.23 Hz
   date      time   call   distance frequency bandwidth snr    correlation
2013-12-31 18:07:58 DF6NM    175km   8970.000Hz   0mHz -58.3dBOp 100% 17.0dB

Wishing you all a very good start into 2014!

73, Markus (DF6NM)

From: Markus Vester

Sent: Tuesday, December 31, 2013 3:17 PM

To: [email protected]

Cc: Paul

Subject: VLF: 8970 Hz Op-4H

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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