Atec Aeroflex-6820A Series - Manual (Page 3)

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Manufacturing Test
To the production manager the 6820A offers reduced programming
time, reduced test time and simplified archiving of results. 6820A is
fully compliant with the IEEE 488.2 GPIB standard. A full 401 data
points can be transferred over the GPIB in typically <50 ms.
Individual data points can be repetitively read in typically 10 ms. This
enables full results archiving with minimal time penalty.
Continuity of test is essential in a production environment. A failed
test system can result in expensive loss of output. 6820A with its field
replaceable modules minimizes any output loss due to test system
failure.
Installing and Maintaining Systems
During the installation period of a microwave system it is always nec-
essary to revalidate key parameters. 6820A provides a comprehensive
solution for installation teams. It is housed in a ruggedized case, has
secure handles and can be supplied with a protective carrying case.
For systems with long waveguide or coaxial feeds the 6820 is used by
the installation team to measure return loss and if necessary fault
location. The synthesized source with 1601 measurement points
ensures precise fault location measurements. AC Detection can be
used for return loss and fault location measurements in the presence
of interfering signals, a common cause of poor measurement per-
formance in the field. In this mode the source output is chopped and
the resulting pulsed signal is demodulated and processed in such a
way that interference and zero drift are effectively cancelled.
By archiving results to external USB Flash Memory, or the internal
instrument memory, the 6820A forms the basis of a preventative
maintenance system. Experience shows that degradation in the
antenna feed is the major source of system field failures. 6820A has
the accuracy to monitor and identify gradual system degradation with
time.
Additionally, the synthesized microwave source may be used in con-
junction with the optional step attenuators, to carry out system sensi-
tivity tests. The internal pulse modulator and modulation options
with both single pulse and multi-pulse capability offers the ability to
perform tangential sensitivity and range tests for many different types
of radar systems
Results Logging and Outputting
Measurement results can either be saved to internal non-volatile
memory or to USB Flash Memory. Traces saved vis USB can then
be archived or imported into a spreadsheet for viewing.
SPECIFICATION
SOURCE
Functionality
Synthesized CW
Synthesized sweeper for use with scalar analyzer
CW Power sweep
External FM Modulation
Internal FM + Pulse driver (Option 23)
Internal Pulse Modulator (Option 25)
Frequency Range
6821A 1 MHz to 3 GHz
6822A 10 MHz to 8.4 GHz
6823A 10 MHz to 20 GHz
6824A 10 MHz to 24 GHz
6825A 10 MHz to 46 GHz
6825AR 10 MHz to 40 GHz
Resolution (Settable)
1 Hz to 46 GHz
CW Accuracy
(Frequency Standard error x Frequency) ± 10 Hz
Swept Accuracy (Typical)
300
µ
s Step Time
1 MHz to 3 GHz <20 kHz
3 GHz to 46 GHz <200 kHz
1 ms Step Time
1 MHz to 3 GHz <1 kHz
3 GHz to 46 GHz <10 kHz
10 ms Step Time
1 MHz to 3 GHz <100 Hz
3 GHz to 46 GHz <1 kHz
Levelled Power Range
6821A/2/3/4 standard
1 MHz to 3 GHz -10 dBm to +10 dBm
3 GHz to 24 GHz -10 dBm to +5 dBm
6825A & 6825AR
10 MHz to 8 GHz -10 dBm to +8 dBm +10 dBm typ
8 GHz to 20 GHz -10 dBm to +5 dBm +7 dBm typ
20 GHz to 24 GHz -10 dBm to +4 dBm +6 dBm typ
24 GHz to 40 GHz -10 dBm to 0 dBm +3 dBm typ
40 GHz to 46 GHz -10 dBm to 0 dBm typ*
* Excluding the effect of connector moding
6822A/3/4 + option 030 (higher power)
1 MHz to 24 GHz -10 dBm to +10 dBm
6821A + option 010 (110 dB Step Attenuator)
1 MHz to 3 GHz -120 dBm to +8 dBm
6822A/3 + option 011 (70 dB Step Attenuator)
10 MHz to 3 GHz -80 dBm to +8 dBm
3 GHz to 20 GHz -80 dBm to +2 dBm
+ option 030 (higher power)
3 GHz to 20 GHz -80 dBm to +7 dBm
6822A/3/4 + option 012 (90 dB Step Attenuator)
10 MHz to 3 GHz -100 dBm to +8 dBm
3 GHz to 24 GHz -100 dBm to +2 dBm
+ option 030 (higher power)
3 GHz to 24 GHz -100 dBm to +7 dBm
6825A & 6825AR + Option 013 (70 dB Step Attenuator)