Re: LF: T/A DK7FC

[Stefan Schäfer <Stefan.Schaefer@iup.uni-heidelberg.de>]

Hello Jay,

Thank you for the captures and interesting report. Yes, i saw the beginning of my transmission on your grabber. You normally can see when i started to TX in the wideband window at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html that covers the last 13 hours. I also saw the signal quite well at VE2IQ / http://www.nrtco.net/~ve2iq/grabs/index.htm but the first round was negative at W4DEX.

The path of CT1DRP and you must have been almost exclusively over sea water. Not sure if there is an additional attenuation from JN49IK...
I'm still running the old system but the new litz wire is already here and i'm working with highly corrosive materials and cute chemist girls to remove the enamel ;-) But it works well: http://dl.dropbox.com/u/19882028/LF/Decca%20RF%20litz%20wire%2C%20soldered.JPG (sorry, just the wire).

So, looking forward to further improvements, system and propagation wise.

73 and thanks for the good RX system!

Stefan/DK7FC

Am 21.10.2011 12:30, schrieb jrusgrove@comcast.net:

Stefan

 

Capture of your signal fading into the sunrise at about 0640Z at http://www.w1vd.com/grabber.html .

 

Signal was already very strong when I switched the receiver on about 2230Z but went into a very slow fade that lasted until about 0230Z. Signal popped back up and was strong the rest of the night until fadeout as shown above. It was interesting that VE2IQ had copy throughout the fade noted here. There was no QRM or unusual static conditions to limit receiving 'sensitivity' so propagation is likely to blame. I'm curious what Bill is using for his receiving antenna ... maybe he will chime in. The antenna here is the large format K9AY.

 

Not sure what time you start your transmissions to the west, but in the dead of winter a number of years back I was able to copy CT1DRP as early as about 1930Z on some days.

 

Thanks for the T/A target signal!

 

Jay W1VD  WD2XNS  WE2XGR/2