LF, EbNauters
i have added some more info regarding my EbNaut RX setup in the previous folder and created a better summary.
The folder is now located at Thanks in advance for any feed-back.
A question for Stefan: the necessary 0.3 s correction is needed becouse your transmission starts later (maybe due to the special SL Tx configuration) or transmission timing is precise, but our SL based decoder needs that corrections ? I have received your signal this night without any time-offsets in the auto decoder.
73, Domenico IZ7SLZ
LF,
i have accepted the invitation of Paul N1BUG and added many other informations in the folder already shared, that is now located at
Sorry: for the moments everythings are inside the folder without any link, but there a doc. file with a summary of the contents. Sorry also for my English and for the block diagram drawn by hand (work in progress).
Hope to receive from interested people questions, corrections and suggestions so the quality of the informations will improve. Of course, for vlfrx-tools instructions, i strongly recommend to read the Paul Nicholson abelian.org website (The Bible !).
I will prepare soon also informations for the EbNaut 'Windows' solution, i.e. all software preparations done here when using EbNaut-rx.exe program on Windows's pc.
Paul wrote:
>>>>>
I'm semi-down with suspected food poisoning. Hope your better now and feel ok.
73, Domenico
Hi Rob, Joe, EbNaut,
I would certainly like to see a write-up on Joe's setup along with
any relevant schematics if available.
Yours too, Rob, even if (maybe) it is more than needed for LF.
Wasn't someone working on a web site devoted to EbNaut at LF? I
can't seem to find that info now but I'm not fully up to speed
today. I'm semi-down with suspected food poisoning.
If not, I will up my earlier offer. If those who have had success
with EbNaut at LF will share information on what they used and how
they did it, I will offer to host it all in one place. Maybe we
could put together a LF EbNaut FAQ.
73,
Paul
On 12/9/18 1:53 PM, Rob Renoud wrote:
> Hi Joe, Paul and Chris,
>
> I’m wondering if a technical description of Joe’s LF EbNaut setup
> might be useful to you as, I believe, you are both using
> non-linear amplifiers.
>
> My system is built around using the linear Hafler amplifiers and
> also with an eye toward doing VLF transmissions at some point.
> As such, my system uses GPS-based time and frequency references
> throughout and may have a level of complexity that is not
> required at LF.
>
> Thoughts? I’ll still prepare a summary of my system for sharing
> as that may be useful as well.
>
> 73, Rob - K3RWR
>
>> On Dec 9, 2018, at 12:52, [email protected] wrote:
>>
>> Hi Paul,
>>
>> More snow last night, but I waited for the plough this time! I
>> don't use a linear amp for EbNaut, and a DOCXO is good enough
>> for LF (but not VLF). It isn't hard to do... its easier than
>> the WSPR modes which are confounding to those of us who can't
>> seem to find the microphone jacks on their home brewed
>> transmitters!
>>
>> 73 Joe VO1NA
>>
>>> On Sun, 9 Dec 2018, N1BUG wrote:
>>>
>>> I was interested in trying EbNaut as well, but realistically
>>> it never seemed practical. I would have to start over will
>>> all new equipment for receiving, a linear amplifier for
>>> transmitting and a GPSDO or two.
>>>
>>> I am progressing in the wrong direction. My HP 3325B has
>>> recently come up dead and basic checks show it to have issues
>>> beyond my ability to repair. I miss that generator every
>>> day!
>>>
>>> Rob, I'm sure there are more relevant / obvious places to put
>>> the files, but if you don't get a better offer let me know. I
>>> have web space and would be happy to host the information.
>>>
>>> 73, Paul
>>>
>>>
>>>> On 12/9/18 11:57 AM, Rob Renoud wrote: Hi Chris,
>>>>
>>>> I’ll be glad to document my current EbNaut TX setup. I
>>>> think a series of PDF documents might work best. Do you
>>>> have any suggestions regarding where these documents might
>>>> be posted as I do not have a web site?
>>>>
>>>> Give me a week or so to bring the pieces together.
>>>>
>>>> 73, Rob - K3RWR
>>>>
>>>>> On Dec 9, 2018, at 10:10, Chris Wilson
>>>>> <[email protected]> wrote:
>>>>>
>>>>>
>>>>>
>>>>> Hello Rob,
>>>>>
>>>>> Myself and I think Paul, N1BUG, both have these HP
>>>>> generators, would you be willing to give a brief write up
>>>>> about how you are using yours for Ebnaut please and what
>>>>> peripherals you are using under what OS? I am still
>>>>> building up courage to give it a go on LF, but I have to
>>>>> admit I find it all a little daunting still.... Thanks!
>>>>>
>>>>> Sunday, December 9, 2018, 11:47:22 AM, you wrote:
>>>>>
>>>>>> Hi Jay,
>>>>>
>>>>>
>>>>>> This is welcome news that the newly added periodic CW
>>>>>> ID has no effect on your end.
>>>>>
>>>>>
>>>>>> The HP3325A that I employ as the EbNaut driver makes it
>>>>>> easy with separate but parallel phase (EbNaut
>>>>>> signaling) and amplitude (periodic CW ID) inputs.
>>>>>
>>>>>
>>>>>> Thanks & 73, Rob - K3RWR
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -- Best regards, Chris mailto:[email protected]
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