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Re: ULF: Ground loop night transmission 3.0

To: [email protected]
Subject: Re: ULF: Ground loop night transmission 3.0
From: Markus Vester <[email protected]>
Date: Sun, 14 Apr 2019 23:33:26 +0000 (UTC)
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References: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Hi Stefan,

DL0AO H-field (E-W): Eb/N0 = 2.5 dB(car), 0.7 dB(sym),
DL0AO E-Field: Eb/N0 = 12.0 dB(car), 10.9 dB (sym). 

Our file ended a couple of minutes early with the last 12 symbols missing, causing a slightly high symbol error reading.

73 and good night,
Markus (DF6NM)


-----Ursprüngliche Mitteilung-----
Von: DK7FC <[email protected]>
An: rsgb_lf_group <[email protected]>; Renato Romero <[email protected]>
Verschickt: So, 14. Apr. 2019 23:13
Betreff: Re: ULF: Ground loop night transmission 3.0

Hello ULF friends,

Now i'm sitting in the car again in the deep forest. It is silent (outside!) and the sky is clear. The TX and EbNaut message is now running:

f = 2470.1 Hz
Start time: 14.APR.2019  21:00:00.3 UTC
Symbol period: 9 s
Characters: 3
CRC bits:
16
Coding 16K21A
Antenna current: 2.5 A
Duration: 02:09:36 [hh:mm:ss]

TX power at the beginning of the transmission is 492 W this time.

73, Stefan



Am 14.04.2019 14:41, schrieb DK7FC:
Hello Dreamers,

Today it feels right again, i'd like to have another exciting adventure...
After the recent successes at 2970 Hz, maybe it is possible to get something through at 2470 Hz? That's the 121 km band. So far, thge distance record at this frequency is over to DL4YHF, QRB ~ 313 km.

I'd like to try the following:

f = 2470.1 Hz
Start time: 14.APR.2019  ab:cd:00.3 UTC
Symbol period: 9 s
Characters: 3
CRC bits:
16
Coding 16K21A
Antenna current: 2.e A
Duration: 02:09:36 [hh:mm:ss]


More details regarding start time and antenna current will follow after the transmission has started.

Reports requested / welcome :-)

73, Stefan
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