Re: LF: K3RWR LF EbNaut

["jrusgrove@comcast.net" <jrusgrove@comcast.net>]

Nice going Markus and Rob! Looks like 'every last dB' was helpful but not required. 

 

Jay W1VD

 

 

----- Original Message -----

From: Markus Vester <markusvester@aol.com>

Reply-To: <rsgb_lf_group@blacksheep.org>

To: <rsgb_lf_group@blacksheep.org>

Sent: 3/24/2018 7:34:42 PM

Subject: Re: LF: K3RWR LF EbNaut

---

Hi Rob,

got several valid decodes here in Nuremberg, best from the 5 UT transmission (screenshots attached). The signal was so strong that the spread PSK became visible in a spectrogram as a faint noise band.

Here's a list of all successful decodes between 22:00 and 6:30:

start  Eb/N0
 UT     dB
0100   3.3
0230   5.5
0300   1.7
0330   1.1
0430   9.9
0500  11.9
0530   4.6

Thanks Rob for the good work!

73, Markus
DF6NM in JN59NJ



-----Ursprüngliche Mitteilung-----
Von: Rob Renoud <k3rwr@md.metrocast.net>
An: RSGG_LF <rsgb_lf_group@blacksheep.org>
Verschickt: Fr, 23. Mrz 2018 16:08
Betreff: LF: K3RWR LF EbNaut

LF,

I am running trial LF EbNaut transmissions this weekend as follows:

Start Time: Currently Running
Stop Time: 25 Mar 1300 UTC
Freq: 137.395 KHz
Code Rate: 1/8K=19
CRC: 24
Symbol Period: 3 sec
Message Text: K3RWR
Characters: 5, Number of Signal Bits: 576
Duration: 00:28:48:00
Transmissions Start on Hour & Half Hour
Power: 0.5W EIRP

The objectives are to test my station transmitting equipment on EbNaut and asses all signal reports and decode reports. Note: I will be able to move to a lower frequency in the band once the weather improves and I can implement changes to the antenna tuning unit.

Reports and comments welcome!

Tnx & 73,
Rob - K3RWR FM18qi