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Re: LF: RE: 300 mA on 8270 Hz

To: [email protected]
Subject: Re: LF: RE: 300 mA on 8270 Hz
From: DK7FC <[email protected]>
Date: Sat, 23 Sep 2017 13:03:50 +0200
In-reply-to: <[email protected]cal>
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Hi Luis,

Thanks for your interest.
There are a lot of settings to make before SL generates the necessary txt files for ebNaut decodes. I can send you a configuration file for SpecLab later.
But i think it makes no sense at that stage for you. There is a sequence of steps to be done before there can be a success. As long as you can't see my carrier there is no chance to decode that message. Also we should start with much shorter messages. 12 characters is already a bit a challenge for the stations in a range < 1000 km. Stacking many days will help of course.
We could start using a 1 character message or 2 characters.

Your 47 uHz spectrogram already shows changes in the day/night QRN, which is a good sign. But it looks to me that the difference should be higher, i.e. it looks like you are missing some sensitivity. You know, it depends on the location of the E field probe and the sourrouning objects such as trees. Also the high pass cut off frequency plays a role. And of course the local QRM which reduces the performance of the noise blanker.
What about your remote RX location in 7 km distance from your house? Isn't it even near the sea?
Can you describe the rx system that you used so far, and the location? Sorry, we may have discussd that before but maybe there are some changes that i missed.

I would like to reach that goal with you, not only on 8270 Hz. And i think it is quite realistic!

73, Stefan

Am 22.09.2017 15:41, schrieb VIGILANT Luis Fernández:

FFT window time (length): 6.635 hrs

This value for example must be longer than the transmission time.


Duration: 11h,31min,12sec

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