Date: Wed, 13 Feb 2019 16:45:25 -0330 (NST)
From: jcraig@mun.ca
To: LF Group <rsgb_lf_group@blacksheep.org>
In-Reply-To: <CANA3B6USAhFvdZoL7AcZoKn56nzYfNJPf7dzfE-u7Ca4vkgS2w@mail.gmail.com>
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Subject: Re: LF: VO1NA Ebnaut recently decodes
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Hi Riccardo, Group.

Thanks for the details of your experiments and the signal reports.
The set up here is an NEO7M to a Decca (one PA module) to a 100x20m
RL aerial. Paul's Ebkey.c clocks the XOR. The RL has several dB over
the monopole. Perhaps running a counterpoise under the top loading wire 
may yield another dB or 2.  Stefan's and Markus's grabbers are
very helpful too.

73
Joe VO1NA

On Wed, 13 Feb 2019, Riccardo Zoli wrote:

> Joe, Stefan, LF
>
> Another night with a strong signal from you, Joe. Thanks again for your
> transmissions which provides good opportunities for RX equipment testing.
> Last night, in particular, I tried to listen your signal with my *SLMS
> HP-3746A*, equipped with its high stability oscillator (OPT.014). I have
> got good decodes with *NO GPS* *reference* connected to audio card or
> instrument; I noticed only a slight phase rotation in a couple of cases.
> I used my TX inv. "L" antenna (that was tuned this time) and a 6 dB
> attenuator.
> You can see here the results:
>
> UTC   Eb/N0[dB] Carr.S/N[dB] Mess.
> 0030 7.1  32.14 *******
> 0100  8.0  32.20 VO1NA_R
> 0130 5.2  29.08 *******
> 0200 4.0  27.95 VO1NA_R
> 0230 5.7  29.01 *******
> 0300 3.3  27.79 VO1NA_R
> 0330 NIL    -              -
> 0400 9.0  32.46 VO1NA_R
> 0430 7.3  31.49 *******
> 0500 6.2  30.55 VO1NA_R
> 0530 6.1  29.86 *******
> 0600    -0.3  24.48 VO1NA_R
>
>
> All the best
>
>
> 73 de Riccardo IW4DXW
>
>
>
> Il giorno lun 11 feb 2019 alle ore 21:05 <jcraig@mun.ca> ha scritto:
>
>> Hi Riccardo, Stefan, LF,
>>
>> Pleased to get your report of improved signal strength Riccardo.
>> The R means "Rotated L" so it is in the sky again since yesterday.
>> Today a cermaic feedthrough was installed on the PVC bucket
>> that houses the coil. It was cold (-10 C) today but the work had
>> to be done; there was too much charring and arcing.  All seems OK
>> now and the TX is on (one Decca module) 2.2A RF
>>
>> 73
>> Joe VO1NA
>>
>> On Mon, 11 Feb 2019, DK7FC wrote:
>>
>>> Hello Riccardo,
>>>
>>> I like the precision of your RX frequency. I should add a few nulls to
>> my
>>> file too :-)
>>> Good work regarding Joe's reception!
>>>
>>> 73, Stefan
>>>
>>> Am 11.02.2019 12:56, schrieb Riccardo Zoli:
>>>>
>>>> Joe, LF
>>>>
>>>> Very strong signal last night continuously from 2330z to 0530z.
>>>> Best decode at 0300z, info attached.
>>>> RX setup: inverted "L" TX antenna (slightly detuned, 6 dB attenuator
>>>> inserted) and SDR.
>>>>
>>>> All the best,
>>>>
>>>> 73 de Riccardo IW4DXW
>>>>
>>>> Il giorno gio 7 feb 2019 alle ore 17:44 <jcraig@mun.ca
>>>> <mailto:jcraig@mun.ca>> ha scritto:
>>>>
>>>>     Apologies: I misspelt Domenico and did not acknowledge Riccardo's
>>>>     autodetector.
>>>>     73
>>>>     Joe
>>>>
>>>>     On Thu, 7 Feb 2019, jcraig@mun.ca <mailto:jcraig@mun.ca> wrote:
>>>>
>>>>    > Dominico,
>>>>    >
>>>>    > Thanks to you and Markus and Domenico for the autodecoder service.
>>>>    > I will check the modulator and try again tonight. Some antenna
>> work
>>>>    > is planned as well when the wx improves so there should be some
>> more
>>>>    > dB available soon.
>>>>    >
>>>>    > 73
>>>>    > Joe
>>>>    >
>>>>    > On Thu, 7 Feb 2019, Domenico IZ7SLZ wrote:
>>>>    >
>>>>    >> Joe, LF
>>>>    >> in my EbNaut log
>>>>    >> *https://qsl.net/iz7slz/EBNAUT/DECODED.TXT
>>>>    >> <https://qsl.net/iz7slz/EBNAUT/DECODED.TXT>*
>>>>    >> there are some decodes of your EbNaut of last nights (QRB=5426
>>>>     km). Seems
>>>>    >> that since yesterday, only carrier is sent on usual qrg 137477
>> Hz.
>>>>    >> Autodecoder here is now running, every XX:00 and XX:30 on Joe's
>>>>     parameters:
>>>>    >>
>>>>    >> 137477.000Hz N=7 T=3s 8K19A CRC=16 list=2000 sym=608
>> Duration=1824s
>>>>    >> T_OFFSET=0.0s F_OFFSET=0.000Hz
>>>>    >>
>>>>    >> 73, Domenico IZ7SLZ / JN80nu
>>>>    >>
>>>>    >
>>>>    >
>>>>
>>>
>>
>>
>