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1. Apply the appropriate errors detailed for each measuring function.
2. Use Timebase Uncertainty in Basic Accuracy calculations only for Measurement Functions that show the ● symbol in the Timebase
Uncertainty column.
3. Assumes Gaussian noise distribution and non-synchronous gate, non-gaussian noise will effect Systematic Error. Note all optional
microwave channel specications (continuous wave and pulse/burst) assume sine signal.
4. Typical is achieved with an average of 100 readings with 100 samples per trigger. Worst case is trigger and sample count set to 1.
5. Improved frequency ratio, duty and phase specications are possible by making independent measurements.
6. Minimum Pulse Width for using stated linearity is 5 ns; Pulse Widths of 2-5 ns use linearity=400 ps.
7. Residual instrument Rise/ Fall Time 10%-90% 2.0 ns (typ). Applies to xed level triggering. Threshold can still be set based on % of
auto-level detected peaks, but since these peak levels may contain unknown variations, accurate measurements need to be based on
absolute threshold levels.
8. Input signal slew rates and settling time have effects on offset. Offset is calibrated with rise times < 100 ps.
9. Constant Duty or Phase are required during the measurement interval. Duty and Phase are calculated based on two automated sequential
measurements - period and width or TI A to B, respectively.
10. Duty is represented as a ratio (not as a percent).
11. Additional count errors need to be added for gated totalize error, latency or jitter. If gated, add gate accuracy term (See Totalize measure-
ments in the Measurement Characteristics section).
12. Volts pk error apply for signal levels between full range and 1/10th range. Spec applies to sine wave only. 50 V range reading accuracy is
2% at DC-1 KHz, 5% 1 KHz -1 MHz band. Accuracy above 200 MHz is not specied on both ranges.
13. For 6 GHz (Opt 106): Specications apply to signals from ±13 dBm, operable to ±19 dBm. For 15 GHz (Opt 115): Specications apply to
input powers as listed under “Pulse/burst frequency and pulse envelope detector (Option 150) measurement characteristics”, operable from
+13 dBm to -8 dBm.
14. Use the RE equation, but use the input PRF for FIN. Assume sharp envelope transition.
15. Applies when Burst Width * Carrier Freq > 80.
16. Specications based on gate and width for automated detection. If in manual mode, delay and width selected will impact accuracy speci-
cation. For approximate accuracy for manual gate, use the RE calculation, but FIN is now 106 and use gate as burst width. For input signals
where PRI < 250 μs, double the 1-σ Random Uncertainty specication, unless a Trigger Count of 1 and a large Sample Count acquisition
method are used.
17. Specications apply if measurement channels are in 5 V range, DC coupled, 50Ω terminated and at xed level. The following minimum pulse
width requirements apply:
Single-Period: < 250 MHz, 50% Duty
Phase, Dual Channel Time Interval: < 160 MHz, 50% Duty
> 2 ns > 4 ns
> 2 ns > 4 ns
Negative width, Negative duty,
Single Channel Time Interval Fall to Rise
Positive width, Positive duty,
Single Channel Time Interval Rise to Fall
Accuracy Specications (continued)