Racal Instruments 2461 User Manual page 166

User Manual 2461 Type C
.
14 x TriggerError x Frequency
= ± ±
Resolution LSD
For 6 to 10 Digits:
( )
= ±
Resolution 2 x LSD
BEST CASE RESOLUTION
The following calculations are based upon the assumption that the only contribution to the
input noise is that of the input amplifier. Figures shown are for 9 digits selected (i.e.
nominal gate time = 1s) with sinewave input.
Input
Frequency
10Hz
100Hz
1kHz
10kHz
100kHz
1MHz
10MHz
100MHz
Accuracy
± Resolution ± Timebase Error × Frequency
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
GateTime
.
14 x TriggerError x Frequency
±
GateTime
Table 1.1 Frequency 1 - Best Case Resolution (Hz)
50mV RMS
0.0005
0.0005
0.0005
0.0005
0.0007
0.003
0.02
0.2
(subject to Notes (i) and (ii))
(subject to Notes (i) and (ii))
Input Level
100mV RMS 500mV RMS
0.0003 0.00005
0.0003 0.00005
0.0003 0.00005
0.0003 0.00007
0.0005 0.0003
0.002 0.002
0.02 0.02
0.2 0.2
1V RMS
0.00003
0.00003
0.00003
0.00005
0.0002
0.002
0.02
0.2
A-7