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Re: LF: EbNaut Test tonight

To: [email protected]
Subject: Re: LF: EbNaut Test tonight
From: Markus Vester <[email protected]>
Date: Sun, 15 Apr 2018 08:47:41 -0400
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Perfect decode after 12 UT, Eb/N0 = 24.9 dB.

73, Markus


-----Ursprüngliche Mitteilung-----
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: So, 15. Apr 2018 13:00
Betreff: Re: LF: EbNaut Test tonight

Hi Joe,
tried to decode your 10 UT transmission but something is wrong. The constellation looks as if there was only a small amplitude modulation instead of the 180° PSK. So the message I got was 101 stars, and the opds grabber showed a strong carrier peak. Apparently the carrier also started a couple of minutes late and was not perfectly stable.
I have now inserted an artificial 137524.5 Hz reference into the fast colour-DF grabber, so you can look at the colour to check your carrier phase.

Best 73,
Markus

-----Ursprüngliche Mitteilung-----
Von: Joe <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: So, 15. Apr 2018 12:12
Betreff: AW: LF: EbNaut Test tonight

Oups, Frequency: 137.5245 kHz

GM LF,

 

I launched an Ebnaut beacon at 10:00 UT

 

Symb. Period: 0.5 sec

Coding 4K19A

Length: 101

 

Start 10:00 UT

Duration 21:20:00 mins

 

73 and GL

Joe

 


Virenfrei. www.avg.com

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