Cursor Measurements
TDS 620A, 640A & 644A User Manual 3Ć19
Time Units
+1 * %++/"0+ !&/,(42".0& ( . 1./+. ."/1(0/&* 1*&0/+# 0&)"+.
#."-1"* 4# 4+1%2" ,0&+* &!"+4+1 *(/+ !&/,(4 0%" ."/1(0/ &*
0".)/ +# 2&!"+ (&*" *1)".
."// CURSOR➞Time Units)&*➞seconds +. 1/seconds (Hz) +.
3&0% ,0&+*  video line number /&!"
Amplitude Units
# 4+1 ." )"/1.&*$  /&$*(/ 4+1 * %++/" 0+ !&/,(4 2".0& (
."!&*$/ &*  1*&0/ # 4+1 ." 0.4&*$ 0+ !+ 0%&/ 4+1 /%+1(! %2" +,0&+* 
&!"+ .&$$".&*/0(("! /&0 3+1(!" !&##& 1(0 0+ 0.&$$". +* +),+/&0" 2&!"+
32"#+.)/ 3&0%+10 +,0&+* 
."// CURSOR➞Amplitude Units)&*➞IRE (NTSC)
Toreturn to normal:
."// CURSOR➞Amplitude Units)&*➞Base
Cursor Speed
+1 * %*$"0%" 1./+.//,""! 4,."//&*$ SHIFT"#+." 01.*&*$ 0%"
$"*".( ,1.,+/" '*+ %" 1./+. )+2"/ #/0". 3%"* 0%" SHIFT 100+* &/
(&$%0"! *! 0%" !&/,(4 ."!/   &* 0%" 1,,". .&$%0 +.*".
""  +* ,$" 5
""   +* ,$" 5 #+. &*#+.)0&+* +* 1./+. 1*&0/ 3&0%
)1(0&,(&"! 32"#+.)/
""    +* ,$"5   +*
,$"5 *!   +* ,$"5&# 4+1. +/ &((+/ +," &/
"-1&,,"! 3&0% ,0&+*  !2* "!  0% /0*!.! +* 0%" 
#+. &*#+.)0&+* +* 1./+. 1*&0/ 3&0% &*0"$.0"! !&##"."*0&0"! *!  32"5
#+.)/
"" 0%"        &# 4+1. +/ &((+/ +," &/
"-1&,,"! 3&0% 0%" 2&!"+ 0.&$$". +,0&+* #+. &*#+.)0&+* +* 1./+. 1*&0/ 3&0%
2&!"+ 32"#+.)/
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