Data Sheet
Input C – 20 GHz (FCA3020 and FCA3120 Products)
Characteristic Description
Frequency Range 0.25 to 20 GHz
Operating Input Voltage Range
250to500MHz –21to+27dBm
0.5to14GHz –27 to +27 dBm
14 to 18 GHz –27 to +27 dBm
18 to 20 GHz –21 to +27 dBm
Prescaler Factor 128
Impedance 50 Ωnominal, VSWR < 2.0:1
AM Tolerance >90% within sensitivity range
Max Voltage without
Damage
+27 dBm
Connector Type Precision-N Female
Rear Panel Inputs and Outputs
Characteristic Description
Reference Input 1, 5, or 10 MHz; 0.1 to 5 VRMS sine; impedance ≥1kΩ
Reference Output 10 MHz; >1 VRMS sine into 50 Ω
Arming Input Arming of all measuring functions
Impedance Approx. 1 kΩ
Frequency range DC to 80 MHz
Pulse Output
(FCA3100 Series)
Programmable through front GPIB/USB
Mode Pulse Out, Gate Open, Alarm Out
Period 20 ns - 2 s, in 10 ns increments
Pulse width 10 ns - 2 s, in 10 ns increments
Output TTL levels in 50 Ω,risetime2ns
Rear-panel
Measurement Inputs
A, B, C (Option RP only)
Impedance 1MΩ/50pFor50Ω(VSWR ≤2:1)
Connectors SMA female for rear input C
BNC for all other inputs/outputs
Auxiliary Functions
Trigger Holdoff
Characteristic Description
TimeDelayRange 20nsto2s,10nsresolution
External Start and Stop Arming
Characteristic Description
Modes Start, Stop, Start and Stop Arming
Input Channels A, B, or (rear panel) E
Max Rep. Rate for Arming Signal
Channel A, B 160 MHz
Channel E 80 MHz
Start-time Delay Range 20 ns to 2 s, 10 ns resolution
Statistics
Characteristic Description
Functions Maximum, Minimum, Mean, ΔMax-Min, Standard
Deviation, and Allan Deviation
Display Numeric, histograms, or trend plots
Sample Size 2to2×10
9samples
Limit Qualifier Off, or capture values above, below, inside, or outside
limits
Measurement Pacing Pacing Time Range: 4 µs to 500 s
Mathematics
Characteristic Description
Functions (K*X+L)/M and (K/X+L)/M. X is current reading and K, L,
and M are constants; set using the keyboard or as frozen
reference value (X0)
Other Functions
Characteristic Description
Measuring Time 20 ns to 1000 s for frequency, burst, and period average.
Single cycle for other measuring functions
Time-base Reference Internal, external, or automatic
Display Hold Freezes the result, until a new measurement is initiated
through a restart
Limit Alarm Graphical indication on front panel and/or SRQ through
GPIB, plus pulse output connector (FCA3100 Series)
Limit Values Lower limit, upper limit
Settings Off, or alarm if value is above, below, inside, or outside
limits
On Alarm Stop or Continue
Display Numeric + Graphic
Stored Instrument
Setups
20. Instrument setups can be saved/recalled from
internal nonvolatile memory. 10 can be user protected
Display Backlit LCD graphics screen for menu control, numerical
readout, and status information
Number of digits 14 digits in Numerical mode
Resolution 320 × 97 pixels
GPIB Interface
Characteristic Description
Compatibility IEEE 488.2-1987, SCPI 199953131A Compatibility
mode
Interface Functions SH1, AH1, T6, L4, SR1, RL1, DC1, DT1, E2
Max Measurement Rate
GPIB 15k/5k readings/s (Block mode)
4k/- readings/s (Talker Only mode)
650/500 readings/s (individual GET triggered)
To internal memory 250k readings/s
Internal Memory Size 750k readings (FCA3000 Series)
3.75M readings (FCA3100 Series)
USB Interface
Characteristic Description
USB Version 2.0 full speed (11 Mb/s)
Calibration
Characteristic Description
Mode Closed case, menu controlled
Calibration Frequencies 0.1, 1, 5, 10, 1.544, and 2.048 MHz
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