Keysight Technologies N5249A Configuration Manual page 9

PNA-X Series test set and power configuration options
4 -port standard test set, power range and an

internal second source (Option 400)
The standard 4-port test set comes with 12 front-panel access
loops and a built-in second source. The loops provide access to
the signal path between (a) the source output and the reference
receiver, (b) the source output and directional coupler thru arm
and (c) the coupled arm of the directional coupler and the port
receiver. The internal second source provides an additional signal
(fixed or swept) for two-tone third-order-intercept (TOI) and
intermodulation testing of amplifiers, or it can be used as a fast
swept-LO signal for fixed-IF testing of mixers and converters.
With two sources, source 1 is accessible through test ports 1
and 2, and source 2 is accessible through test ports 3 and 4.
The standard test set also includes a solid-state internal RF
transfer switch in the R1 reference-receiver path. Option 080 is
recommended.
Rear panel
LO
To receivers
R1 R3
A
Test port 1 Test port 3
High-power configurable and extended power
range (N524xAS Option H85/485)
With extended power range and bias-tees (Option 419), the
internal bias-tees limit the maximum test port input power to
+30 dBm. The N524xAS Option H85/485 removes the bias-tees
between the source attenuators and the test port couplers. This
extends the maximum port power that the analyzer can safely
handle to +43 dBm. Selecting Option H85/485 adds internal at-
tenuators and cables. The N524xAS Option H85/485 and Option
419 can not be ordered together. Option H85/485 is not available
for the N5249A or the N5247A. When ordering, select N524xAS
then add items N524xAS-H85, N524xAS-485 and N524xA-400.
Rear panel
LO
To receivers
R1 R3
A
35 dB
65 dB 65 dB
Test port 1 Test port 3
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Source 1
OUT 1 OUT 2
Pulse
modulator
Pulse generators
Source 2
OUT 1 OUT 2
Pulse
modulator
R4 R2
C D
Test port 4 Test port 2
Source 1
OUT 1 OUT 2
Pulse
modulator
Pulse generators
Source 2
OUT 1 OUT 2
Pulse
modulator
R4 R2
C D
35 dB 35 dB
65 dB
Test port 4
Extended power range and bias-tees
(Option 419)
Adds to the standard test set one 65 dB for N5241/42/49A, 60 dB
for N5244/45A, and 50 dB for N5247A source attenuator (set-
table in 5 dB increments for N5241/42/49A and 10 dB increments
for N5244/45/47A), one 35 dB receiver attenuator (settable in
5 dB increments) for N5241/42/44/45/49A and 50 dB receiver
attenuator (settable in 10 dB increments) for N5247A, and one
bias-tee to each test port. Option 419 requires Option 400.
Add an internal combiner and mechanical
switches to 4-port analyzer (Option 423)
Rear panel
IF inputs
R A B C D
R1
65 dB
Test port 1
B Available with 4-port model only, this option adds a combiner
and mechanical switches. The mechanical switches provide
increased flexibility by having rear panel access (front panel
access for the N5247A Source 1 and 2 Out 1) to signal paths for
advanced applications. Requires Options 400, 419 and 080.
Rear panel
J11
OUT 1
R1
65 dB
Test port 1
IF inputs
R A B C D
1 The block diagrams shown above include hardware that must be ordered
as separate options, such as pulse generators (Option 025), pulse modu-
B
lators (Options 021 and 022), and IF access (Option 020). In addition, the
combiner type and attenuator values vary by model number. Refer to the
product data sheet for the correct block diagram for a specific model.
65 dB
35 dB
Test port 2
1
(continued)
Source 1
OUT 1 OUT 2
Pulse
modulator
LO
Source 2
OUT 1 OUT 2
Pulse
To receivers
modulator
R3 R4
A C
35 dB 35 dB
65 dB 65 dB
Test port 3 Test port 4
J10 J9 J8 J7 J6 J5
RF LO
OUT OUT
Source 2
(standard)
Source 1 OUT 1 OUT 2
OUT 2
Pulse
modulator
Pulse
modulator
R3 R4
A C
35 dB 35 dB
65 dB 65 dB
Test port 3 Test port 4
IF inputs
R A B C D
Pulse generators
R2
D B
35 dB
65 dB 35 dB
Test port 2
IF inputs
J4 J3 J2 J1
R A B C D
LO
Pulse generators
To receivers 1
2
3
4
R2
D B
35 dB
65 dB
35 dB
Test port 2
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