Atec Aeroflex-6820A Series - Manual (Page 5)

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either trigger input or sync output depen-
dant upon trigger mode. TTL level
Options 025a & 025b Internal Pulse Modulator
Option 25a (6822A and 6823A)
Frequency Range 50 MHz to 18 GHz (8.4 GHz for 6822A)
Usable to 20GHz
RF Output Range The levelled power range is reduced by:
<3.5 dB up to 6 GHz
<4.5 dB up to 14 GHz
<5.0 dB up to 18 GHz
when pulse modulation is selected
RF Level Accuracy Adds ± 0.3 dB to the levelled power
accuracy specification when pulse
modulation is enabled and for powers of
< -1 dBm
Source Harmonics (with Pulse Modulation enabled)
50 MHz - 2 GHz
<-35 dBc
2 GHz - 20 GHz <-50 dBc
On/Off Ratio
50 MHz - 1 GHz
>55 dB
1 GHz - 9 GHz >60 dB
9 GHz - 17 GHz >70 dB
17 GHz - 18 GHz >80 dB
18GHz - 20GHz
>80 dB (typical)
Rise/Fall Times (measured at 10% and 90%)
Rise Time <8 ns (Typically < 5 ns)
Fall Time <12 ns (Typically < 9 ns)
Option 25b (6824A, 6825A and 6825AR)
Frequency Range 50 MHz to 40 GHz (24 GHz for 6824A)
(46 GHz for 6825A)
RF Output Range The levelled power range is reduced by:
<5 dB up to 20 GHz
<8 dB up to 30 GHz
<9 dB up to 40 GHz
when pulse modulation is selected
RF Level Accuracy Adds ± 0.3 dB to the levelled power accuracy
specification when pulse modulation is enabled and for output powers
of <-3 dBm
Source Harmonics (with Pulse Modulation enabled)
50 MHz - 375 MHz
<-35 dBc
375 MHz - 24 GHz <-50 dBc
24 GHz - 40 GHz <-20 dBc
On/Off Ratio
50 MHz - 10 GHz
>60 dB
10 GHz - 26.5 GHz >60 dB (typically > 70 dB)
26.5 GHz - 40 GHz >60 dB (typically > 80 dB)
Rise/Fall Times (measured at 10% and 90% of edge)
Rise Time <7 ns (Typically < 6 ns)
Fall Time <11 ns (Typically < 10 ns)
Pulse Modulation Control
Modes
Pulse, Pulse CW
External (via rear panel BNC connector)
Internal (if Opt 23 fitted)
Control
Control of pulse modulation is:
Internal via soft key menu when the modulation generator
option (Opt 023) is fitted or
External via the rear panel BNC Mod in/out socket.
Level is TTL, High = On, Low = Off.
When pulse mod Off is selected the output is the selected CW
output level
Pulse CW In both internal or external modes, allows setting of
output Level in the 'On' condition for reference or
calibration.
SCALAR ANALYZER
SYSTEM FEATURES
Frequency Range
As per source frequency range
Number of Inputs
3 detector inputs
Number of Measurement Points
User selectable from 2 to 1601
Applications
Return loss vs frequency
Insertion loss vs frequency
Fault Location
Voltage vs frequency
Detection Modes
AC and DC
Noise Reduction
Averaging, 1 to 1000
Smoothing, 0.01 to 20%
Power Measurements
Using scalar detectors
Detector Correction
Frequency response and linearity read from EEPROM for 6230A/L and
fault locators.
Support for 6230 and autotesters.
INSERTION LOSS MEASUREMENTS
Measurement Dynamic Range, AC Scalar Detection, with 623XA
Detector
Max source output to -60 dBm
Max source output to -65 dBm (with averaging)
Typical values:
>65 dB (10 MHz to 40 GHz)
>75 dB (1 MHz to 3 GHz) only with 6232A
Measurement Update Rate
401 points in 270 ms with DC detection
Calibration
Through path calibration or short and short/open calibrations for single
ended insertion loss
Inputs
Single input or ratio
Accuracy
Linearity + mismatch
Linearity (applies after normalization)
Linearity (for Power Levels >-50 dBm)
±0.2 dB / 10 dB but not >0.5 dB in total