[hpsdr] Static

[Jim Keeth]

Recently I changed a Cypress USB IC, which had failed for no apparent  
reason on an Ozy board, for a friend.  ESD?  Maybe.   There is no ESD  
protection on the USB lines except what is in the IC.  The IC data  
sheet states >2000 V which isn't much in terms of static discharge.

BE CAREFUL WHEN PLUGGING IN THE USB CABLE!

73,
Jim AF9A




 >Hulen Smith clay1952 at cmaaccess.com
 >Tue Jan 13 13:20:39 PST 2009
 >
 >Just a word of caution. Dis here cold front and dry air sure has  
the static
 >level high way down here in the south. You all be careful now, ya  
hear? You
 >all wear your static wrist bands and ground ye 'selves to a known good
 >ground 'fore touching yore hard earned HPSDR boards. Ye hear me?
 >
 >All right den, carry on soldiers and I be expect'in good things  
from all of
 >ya. Keep dem reports coming dis way.
 >
 >:)
 >
 >Take care now
 >Hulen
 >K5HCS

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