Re: LF: VLF NA Ebnaut

[Markus Vester <markusvester@aol.com>]

Hi Stefan, Joe,

no luck here either...  I hereby disclose my false decode, wonder if you happened to get the same one?
 
Guess we would need stronger CRCs for this, more like 16 instead of 8 bits.

Thanks Joe for the challenge!

Best 73,
Markus

-----Ursprüngliche Mitteilung-----
Von: jcraig <jcraig@mun.ca>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Fr, 12. Jan 2018 0:01
Betreff: Re: LF: VLF NA Ebnaut

Regrets, Markus. It was not a 9.

The wx and power company have been adversely affecting the aerial current.
Perhaps much of yesterday morning's transmision was lost because the mains
were off.

Thanks to you and Paul for the reports. The 0900 and 2100 EbNaut
will continue subject to the whims of the power co and Mother Nature.

73
Joe

On Fri, 12 Jan 2018, Markus Vester wrote:

> Hi Joe,
>
> the DL0AO cardioid delivers a "9" (rank 4, 1.5 dB) from Jan 10 alone. It grows stronger with 10+11 stacked (rank 1, 2.1 dB) and even more so with 10+11+12 stacked (rank 0, 2.6 dB). However Jan 11 alone and Jan 12 alone produced different but weaker results.
>
> Please confirm "9".
>
> 73, Markus
>


-----Ursprüngliche Mitteilung-----
Von: jcraig <jcraig@mun.ca>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Fr, 12. Jan 2018 0:01
Betreff: Re: LF: VLF NA Ebnaut

Hi Stefan,

Sorry, we have to keep trying. The decode was not correct,
unfortunately.

It seems we lost the mains again some time again today.
SL was restarted 2040 ut tonight and the aerial is radiating VLF again.

73
Joe


On Thu, 11 Jan 2018, DK7FC wrote:

> Hello Joe,
>
> I got decodes from your daytime message after 1 day already (when using the
> optimum list length). It was not so clear, two possible characters were
> thrown out but one of them was stronger. Now i waited for the second day.
> Looking for the second day (11th) on its own, the strongest character from
> the day before (10th) was conformed. After a weighted stack, the character
> became confirmed even more, although the rank is still quite high.
> I would like to risk a statement and say, i got the message. I sent you the
> character/message in a private mail now. Do you confirm it is correct? :-)
> It is a bit risky with CRC8. Good to make that experience on the RX side now!
> :-)
> I would tell details in a next mail then...
>
> 73, Stefan
>
> Am 10.01.2018 15:22, schrieb jcraig@mun.ca:
>> Hi Stefan,
>>
>> Glad to hear that your tree is charged. I've added a morning transmission:
>>
>> Daily, 0900 and 2100 utc, 16K21A, CRC-8, one character, 544 symbols,
>> 1 minute each, 8270.0075 Hz, 0.25A, 30 watts to a 100m aerial at 15m
>> mean height.
>>
>> Spectrum Lab is doing very good work with your/Markus' ini file
>> and I can sleep/work better without having to worry about my coil
>> igniting.
>>
>> 73 & GL
>> Joe VO1NA
>>
>> On Wed, 10 Jan 2018, DK7FC wrote:
>>
>>> Hello Joe,
>>>
>>> What are the details/parameters of that transmission?
>>> I will give it a try now! The antenna was switched back to EW before 9
>>> UTC. I'm late but i will get you!
>>>
>>> 73, Stefan
>>>
>>> Am 09.01.2018 22:13, schrieb jcraig@mun.ca:
>>>> It's good to get these reports. Many thanks.
>>>> The daytime sig is visible on your spectrogram though it dips
>>>> about 1600 ut. Another transmission has been added at 0900
>>>> for further entertainment.
>>>>
>>>> 73
>>>> Joe
>>>>
>>>> On Tue, 9 Jan 2018, Paul Nicholson wrote:
>>>>