selected stations
1- or 3-component data
bh = 20Hz, lh = 1Hz, hh = 80Hz
, ,     Start date
, ,     Start time

 
e.g: '12-apr-98_23:18:00' or '12,4,98,23,18,0' or 'not-used'
 
 
000000 ok for small requests (up to 30)