Specifications

NETWORK ANALYZERS
356 For product ordering information, see pages 4 – 10
VECTOR NETWORK MEASUREMENT SYSTEM / DIRECT-ACCESS RECEIVER
MS4622C, MS4623C
10 MHZ to 3 GHz 10 MHz to 6 GHz
The MS462XC series of RF vector network analyzers are configured
as direct-access receivers for antenna, frequency conversion, and
multiple output device measurements. The MS462XC offers ultimate
flexibility to meet most receiver measurement needs while maintain-
ing the ability to measure all four S parameters with the addition of a
reflectometer setup at the front end of the receiver.
The MS462XC series offers two wide-band RF models covering the
10 MHz to 3 GHz or 6 GHz ranges, MS4622C, and MS4623C, re-
spectively.
Applications
•
Mixers
Mixers are integral components of most measurement systems.
Mixer measurements are complicated by the fact that a LO is required
and multiple frequencies are involved in the complete measurement
of a mixer. In addition the mixer is non-linear so power levels must be
carefully considered, and in many instances non-linear effects such
as compression and intermodulation distortion must be measured.
The MS462XC has many features that simplify mixer measurements.
The MS462XC can include two built in sources, to provide both the LO
and RF signal required by the mixer – the system automatically tunes
the receiver to the appropriate IF frequency. The unit can control addi-
tional external sources as required for intermodulation measurements.
The setup of the sources is obviously quite important in a mixer mea-
surement. The Mixer device type simplifies this task somewhat. It al-
lows the quick selection of which source is to be the DUT LO. It al-
lows simple selection of a fixed LO or fixed IF measurement scenario
(and specifying that LO or IF frequency). And, it informs the receiver
of what kind of DUT conversion to expect (up conversion |RF+LO|,
down conversion |RF-LO|, or no conversions might be used for a
quick leakage measurement). Activating the mixer device type also
performs the important function of turning on both internal sources
for front panel access (usually using ports 1 and 3 driving, port 2 be-
ing the receive port). Two ports are not allowed to drive simultane-
ously during normal S-parameter measurements.
•
Antennas
Far-field measurements are enhanced with the speed of taking data
over GPIB, using fast CW mode. Rates of 1 ms/data point can be
achieved using internal triggering, 1.3 ms/point with external trigger-
ing, and 1.6 ms/point with GPIB triggering.
For Measuring Antennas, Frequency Conversion, and Multiple-Output Devices
GPIB