Keysight PNA-X N5242A - Page 16

16 | Keysight | PNA Family Microwave Network Analyzers - Congurations Guide
PNA Family Application Options (continued)
Noise gure options
Solid black series name indicates the feature is available
on that series, while gray series name with strikethrough
indicates the feature is not available on that series. For
example:
PNA: Available on PNA Series
PNA: Not available on PNA Series
Fully-corrected noise figure measurements
(Option 029) PNA-X PNA PNA-L
This option adds a low-noise receiver and rmware to the
PNA-X1 for high-accuracy noise gure measurements of
ampliers, frequency converters, and mixers, utilizing Keysight’s
unique source-correction technique. Using an Keysight ECal
module congured as an impedance tuner for N5241/42/49A (3.5
mm N4691B-M0F recommended; must be ordered or supplied
separately
2
), or a built-in tuner for N5244/45/47A, the effects of
imperfect system-source match are removed, greatly improving
the accuracy of the cold-source technique. This approach
surpasses the accuracy provided by the Y-factor method and
other cold-source implementations. A scalar calibration choice
is also available that offers less accuracy but is faster, and for
N5241/42/49A, does not require the external ECal module used
as an impedance tuner. For calibration of the noise receiver,
Option 029 requires a power meter or a 346 series noise source
(346C or 346C-K0
1
recommended). For measurements of mixers
and converters, a power meter is always required. The noise
source and power meters are only used during calibration of the
analyzer, and must be ordered or supplied separately. During the
S-parameter portion of the noise calibration, a separate ECal
module or mechanical calibration kit is required (also must be
ordered or supplied separately). Option 029 also allows noise
gure measurements using the standard receivers for high-gain
(> 60 dB), narrowband devices that might otherwise overload the
low-noise receiver, or for noise gure measurements up to 67
GHz on the N5247A
1
.
1. For N5247A, the low-noise receiver works up to 50 GHz only
2. Only N4690 Series ECal modules are supported for use as an impedance
tuner.