View source for Hermes Board Build Notes

This is a page to keep helpful documents and hints for building your own Hermes board.  Bare circuit boards are available from [http://www.tapr.org/kits_hermes.html link TAPR] and after they run out, from Apache Labs.  The bill of materials and schematics are available from [https://apache-labs.com/al-downloads/1002/Hermes-Design-Files.html Apache Labs].

*[http://svn.tapr.org/repos_sdr_hpsdr/trunk/Hermes/Documentation/ TAPR Hermes Documentation]  

* Bill of Materials
**[http://people.wallawalla.edu/~Rob.Frohne/Hermes/1010_HERMES_PROD_BOM_08112012_Bot_Top.xls Bill of Materials with columns for the back side and front side components]
**[http://people.wallawalla.edu/~Rob.Frohne/Hermes/1010_HERMES_PROD_BOM_N8AB.xls Terry, N8AB has sorted things out a little differently, which can be helpful sometimes.]

* Solder Stencil Gerbers 
** [http://people.wallawalla.edu/~Rob.Frohne/Hermes/hermes_bot_paste.gbr  Back]
** [http://people.wallawalla.edu/~Rob.Frohne/Hermes/hermes_top_paste.gbr  Front]
* Back Side
** [http://people.wallawalla.edu/~Rob.Frohne/Hermes/Hermes_back.svg Back Side Component Placement Diagram] which has like components color coded so you can place them all at once, and then go on to place the next component type.
** [http://openhpsdr.org/wiki/images/8/87/Hermes_Back.jpg Back Side Photo]
  
* Front Side
** [http://www.k9ivb.net/hermes/Hermes_Component_Placement_Guide_20121105.pdf Front Side Component Placement Diagram (thanks to Terry, N8AB)] which has like components color coded so you can place them all at once, and then go on to place the next component type.
** [http://svn.tapr.org/repos_sdr_hpsdr/trunk/Hermes/Documentation/Build_Photos/ Photos of common component placement data....]
**[http://openhpsdr.org/wiki/images/9/90/Hermes_Front.jpeg Front Side Photo]

*[http://www.k9ivb.net/hermes/ K9IVB Hermes Page] has some good build and VNA info.

======KL7NA Specific Build Notes======
The basic method follows [http://www.youtube.com/watch?v=0FHvikd3BkY&feature=youtu.be this video].  I used the solder stencil to put on the solder paste.  Then the [http://people.wallawalla.edu/~Rob.Frohne/Hermes/back_paste.jpg surface mount components were placed.]  Then the board was baked in a [http://people.wallawalla.edu/~Rob.Frohne/Hermes/coming_out_oven.jpg reflow oven.]  This was repeated for the top.  Surface tension holds the bottom parts on when you reflow the top.  Then the solder bridges were removed with a very fine solder wick and a good soldering iron.  Then the [http://people.wallawalla.edu/~Rob.Frohne/Hermes/top_bridges_repaired.jpg through hole parts were soldered in.]

[[Category:Hermes]]