Tektronix 2247A Operator's Manual page 149

a
Performance Characteristics
Table 6-1 (cont)
Electrical Characteristics
CHARACTERISTICS
Frequency (cont)
Gated Mode
1.4 X TJE X F2
Resolution (Hz)* £ + LSD
( NgX /G
Freq Gating 0.5 ns X Fe
Error (Hz)4
Ng
Accuracy
(Hz)
Resolution
+ (F X TBE) + freq gating error.
LSD (Hz)?
Fe
N X 2X 108
No more than 8 digits displayed;
minimum
LSD
displayed Is 10 nHz.
Period
Range
C/T TRIG TIMEOUT
> 250 ms to < 10 ns.
Enabled, or B
Trigger MODE In
AUTO LEVEL?
C/T TRIG TIMEOUT
Disabled, and B
Trigger MODE not
in AUTO LEVEL@
Non-gated Mode
100 s to< 10 ns.
Displays ">100s" if overranged.
Error (seconds) 4
Accuracy (seconds)
LSD (seconds)?
Ng
Resolution + (P X TBE)
+ time interval gating error.
5ns
N
2247A Operators