HL2 - Block-diagram

[Jean-Baptiste GALLAUZIAUX]

Where can I find a Block-diagram of HL2 like the one of Hermes? I raise this question in order to have a better understanding of the hardware and to use it in complement to the schematics to study HL2. Attached a copy of Hermes Block-diagram found in Hermes wiki.

73 - Pierre - FK8IH

[Steve Haynal]

Hi Pierre,

Attached is one I made several years ago. Also, go to the GUI interface to this group at groups.google.com/g/hermes-lite and search "block diagram" and also "portland latch-up"  OH2GAQ once prepared a set of slides. The portland latch-up thread has slides I've prepared plus a link to a YouTube overview video.

73,

Steve

kf7o

[Jean-Baptiste GALLAUZIAUX]

Thanks Steve. I'm currently studying the documentation while waiting for my HL2 ordered a few days ago. I also found that very interesting wiki :  Hermes Lite 2.0 · softerhardware/Hermes-Lite Wiki (github.com)

73 - Pierre - FK8IH

[Roger David Powers]

Yes, it is interesting but note the date is 2016, that is more properly describing 'hermes lite 1' not 'hermes lite 2'.

It has a lot of the same parts and ideas but a lot changed between HL1 and HL2.

https://github.com/softerhardware/Hermes-Lite2/wiki is the proper location of the information for HL2.

Regards,

RDP

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[Roger David Powers]

Ok, it may be better to call it some of the ideas that became HL2, but again it is pretty dated information.

https://github.com/softerhardware/Hermes-Lite2/wiki is the more current stuff.

Regards,

RDP

[Roger David Powers]

Did the lookups and found the emails:

- slides from hammish:

  https://groups.google.com/g/hermes-lite/c/ocq9iRTKXy0/m/T-SWz302AwAJ

- portland link-up slides:

  https://groups.google.com/g/hermes-lite/c/Q0QDamE-Buw/m/a5_MiajsAwAJ

Regards,

RDP

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[Steve Haynal]

Hi Pierre,

Like Roger says, that page is very old. The original Hermes-Lite project is deprecated. Please see the following for all the latest links:

 http://www.hermeslite.com/

https://github.com/softerhardware/Hermes-Lite2/wiki

73,

Steve

kf7o

[Jean-Baptiste GALLAUZIAUX]

Yes Steve, I understand that: these documents are obsolete . I asked this question only because a block diagram, as proposed with other transceivers and kits is a great help to understand the general organization of an electronic device and study more easily the detailed schematics. For me the HL2 looks like a quite complex design and a block diagram like the one attached (SunSDR Pro) would help. Anyway I have still time before the arrival of my HL2, which should not leave Shenzhen before the 23rd of August.

73 - Pierre - FK8IH 

[Jean-Baptiste GALLAUZIAUX]

I found this very interesting presentation today : 

Hermes-Lite (rfseminar.nl)

73 - Pierre - FK8IH

[Steve Haynal]

Hi Pierre and PA3FUN,

Thanks for the interesting presentation. I have started a section in the wiki to link to external presentations, documentation, blogs, etc. which are related to the Hermes-Lite. Please feel free to add to the list. All that is required for GUI editing is a free github account:

 https://github.com/softerhardware/Hermes-Lite2/wiki/Community-Projects#presentations-and-other-documentation

73,

Steve

kf7o

[Jean-Baptiste GALLAUZIAUX]

Thanks Steve, I just added three links to the list.

73 - Pierre - FK8IH