Frequency Measurement - HP 5326A Operating And Service Manual

Model 5326/27A
Operation
ERROR IN MEASUREMENT FREQUENCY MEASUREMENT
±1 COUNT
TIME BASE ACCURACY
PERCENTAGE 10'
*
I
FRACTION
1
f
t
▼
±1/10°
10% 1X10-1
±1/10
1%
±
i/io
2
0.1% 1X10-3
±1/103
0.01% 1X10"4
±1/104
0.001%
1X10~5
±1/1GS
0.0001%
1X10"6 ±1/106
0.00001% 1X10"7 ±1/107
0.000001% ±1/108
0.0000001%
1X10"9
±1/109
0.00000001%
1X10'10 ±1/1010
0.000000001%
1X10'"
±1/10"
< i 3 PARTS IN 10 , ASSUMED)
10 100 IK 10K 100K 1M 10M 100M 1C
PERIOD AVERAGE MEASUREMENT
±1 COUNT
- TIME BASE ACCURACY
1TRIGGER ERROR = 0.3%/PERIOD
COUNTED FREQ. IS 10MHz
550MHz
ASSUMED TIME BASE
ACCURACY {< ±3X10 71
ACCURACY WHEN USING
INTERNAL OSCILLATOR
ACCURACY POSSIBLE WITH
EXTERNAL OSCILLATOR
(CESIUM BEAM STANDARD)
10 100 IK 10K 100K 1M 10M 100M 1G
MEASURED FREQUENCY(Hz)
NOTE
FOR 550MHZ INPUT (-MO) USE LINE TO RIGHT OF ACTUAL GATE
LENGTH TO DETERMINE ACCURACY OF MEASUREMENT. SINCE
± 1 COUNT ERROR REPRESENTS ±10 COUNTS OF INPUT SIGNAL
WHEN PRESCALING BY 10.