Special options
Occasionally an application requires locating the mixers at a distance greater than is
possible with a standard 85309B. Greater distances require additional LO output power
from the 85309B. Several special options that increase the output power of the 85309B
are available. Refer to the 85309B-H30 section in this document.
Other information
Connectors type-N female
Environmental operating conditions: 0 to 55 °C
Non-operating conditions –40 to 75 °C; 5 to 90% relative humidity, non-condensing.
Power consumption 47.5 to 66 Hz, 100-120 or 220-240 VAC (±10%); 125 VA
maximum.
Weight 15.5 kg (34 lb)
Size 460 mm (18.1 in) W x 133 mm (5.25 in) H x 533 mm (21 in) D
Figure 40. 85309B LO/IF distribution unit block diagram.
* H11 damage level is – 20 dBm
x
A14
A12
Freq
Max input
(.1 dB)
Front Option 014
A, B, R1, R2
20 MHz
–10 dBm
Rear Option H11
A, B, R1, R2
8.33 MHz
–27 dBm
Test port
PNA-X N5242A
network analyzer
PNA N522xA
network analyzer
Direct access
receiver
PNA-X N4264A
measurement
receiver
IF inputs
20 MHz
20 MHz
Refer to
Table 18
+8 dBm
–6 dBm
–9 dBm
Rear inputs
Option 020
Refer to
Table 18
–9 dBm
Ref
antenna
3 dB
3 dB
Keysight 85309B
LO/IF unit
LO
input
LO
input
amp
IF
IF
LO
85320B
85320A
Test
antenna
Rear
panel
jumper
LO
J1
J2 J5 J4
A1
J3
J8
J7
J6
J9
J10
Ref IF
Pos
Z blank
Test IF
RF input to mixers = –24 dBm (.1 dB compression point)
Conversion gain from RF input of mixers to IF output of 85309B ~ 10.5 dB
LO input to 85309B should be ~ 0 to +6 dBm
LO input ot mixers should be ~ +11 to +14 dBm
A10
DET
Slope
pad
Slope
pad
Power
divider
AT3
AT4
<--ALC feedback
LO/IF
Ref LO
amp
Test LO
amp
Test IF
amp
Ref IF
amp
A2
ALC assembly
A11
A15A13
Detector
voltage
display
A16
diplexer
A17
Diplexer
Input
PNA E836xC
network analyzer
PNA Series network analyzers and measurement receivers
57 | Keysight | Antenna Test – Selection Guide
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