Agilent 83711B Data Sheet

5

HP 83711B
HP 83712B
HP 83731B
HP 83732B

206 CW and High-Performance Microwave

Signal Sources

Typical single-sideband phase noise at 50 MHz, 1 GHz and 20 GHz, 25˚ C, CW
mode. Offsets less than 100 Hz require the high stability timebase, Option 1E5.

HP 83711B/12B and HP 83731B/32B 2
Signal Sources

The HP 83711B/12B synthesized CW generators and HP 83731B/32B
synthesized signal generators set new standards for perfor mance at
prices that are surprisingly affordable. No longer will you have to give
up frequency coverage, modulation, or reliability to meet your budget.
These signal sources will perform beyond your expectations at a price
within your reach.

Clean Signals with Plenty of Power

Choose the HP 83711B/83731B, 1 to 20 GHz, or the HP 83712B/ 83732B,
10 MHz to 20 GHz, for your receiver and system test applications. Fun­damental oscillators and switched low-pass filters deliver < –55 dBc har­monics, eliminate subharmonics, and suppress spurious to < –60 dBc.
These signal sources provide plenty of output power (typically > + 14 dBm),
while spectral purity is maintained even at high power levels (typical out­put power at frequencies below 1 GHz is + 20 dBm). These signal sources
deliver >100 dB dynamic range. Level resolution is 0.01 dB with typical
accuracy of ±1.0 dB at any frequency or power level. User Level Correction
simplifies generating accurate, leveled power at distant test ports.

HP 83731B and HP 83732B Provide Unmatched
Modulation Performance

Sophisticated modulation lets you simulate real-world signals. Test
state-of-the-art radar and EW receivers with high-fidelity pulse modula­tion. < 10 ns pulse rise/fall times, < 25 ns pulse width, and > 80 dB pulse
on/off ratio give you the per formance you need to verify modern
receivers. A built-in multimode pulse generator adds the flexibility to
generate triggered, doublet and gated burst pulse modes.

In addition, logarithmic and linear AM is a standard feature in the
HP 83731B/32B. Use the > 60 dB depth log AM and the fast pulse mod­ulation simultaneously (scan modulation) for accurate simulation of
antenna scanning patterns, or sweep power linearly and accurately to
test power-sensitive devices.

The HP 83731B/32B offer unmatched per for mance for testing
satellite communications and telemetry r eceivers. 10 MHz peak FM
and optional 100 radians peak phase modulation deviations, combined
with the highest-modulation index available (> 300 for FM), simplify
simulation of these difficult-to-generate signals. The HP 83731B/32B
remain fully synthesized even at high-modulation indices, eliminating
the troublesome frequency drift of other signal sources.

Real-world signals often combine two or more modulations. The
HP 83731B/32B let you use all three modulations simultaneously with
optional independent internal modulation generator without any degra­dation in perfor mance. FM and phase modulation cannot be applied
simultaneously.

Versatile and Reliable

The HP 83711B/12B and HP 83731B/32B signal sources are the recom­mended local oscillators for the HP 8970B noise figure meter. Low broad­band noise minimizes errors in measurements of low gain devices. Use
these signal sources with the HP 83550 series millimeter-wave modules
to generate signals to 110 GHz. All front-panel functions are completely
GPIB-programmable and SCPI-compatible.

These signal sources are designed to remain within factory speci­fications for the entire life of the instrument. The recommended two­year perfor mance verification cycle minimizes downtime and cost of
ownership. If a unit ever drifts, automated adjustment routines can be
run to retur n the unit to factory performance in less than six hours.
Extensive use of surface-mount technology and a minimum number of
adjustments combine to deliver an estimated MTBF of more than
20,000 hours. Built-in functional verification routines speed servicing.

Key Literature

HP 83711B/12B and HP 83731B/32B Technical Data Sheet, p/n 5963-6615E

Specifications

Frequency Characteristics
Frequency Range:

HP 83711B, 1.0 to 20 GHz
HP 83712B, 10 MHz to 20 GHz
HP 83731B, 1.0 to 20 GHz
HP 83732B, 10 MHz to 20 GHz

Frequency Resolution:1 kHz, 1 Hz with Option 1E8

Internal Reference Oscillator

Frequency:10 MHz
Timebase Stability:

Standard Timebase Option 1E5

Aging Rate < 1.0 x 10–8⁄day < 1.5 x 10

–9

⁄day

Temperature < 5 x 10

–6

< 1 x 10

–7

Line Voltage N/A < 5 x 10

–10

(10% change in voltage)

Timebase Accuracy= ± aging rate ± temperature effects
±line voltage effects

Output Characteristics

Output Power(with Option 1E1):0.01 to 1 GHz + 13 dBm
Maximum Leveled Output Power:1 to 18 GHz + 10 dBm; 18 to

20 GHz + 8 dBm

Minimum Leveled Output Power:–4 dBm; with Option 1E1, –110 dBm

5

HP 83711B
HP 83712B
HP 83731B
HP 83732B

207CW and High-Performance Microwave

Signal Sources

Typical single-sideband phase noise at 50 MHz, 1 GHz, 10 GHz and 20 GHz,
25˚ C, CW mode. Offsets less than 100 Hz require the high-stability timebase,
Option 1E5.

SSB phase noise (dBc/Hz, CW mode):

Offsets

Carrier Freq. 100 Hz 1 kHz 10 kHz 100 kHz

0.5 to <1 GHz -78 -92 -103 -115
1 to <2 GHz -73 -83 -92 -107
2 to <5 GHz -70 -78 -83 -100
5 to <10GHz -69 -78 -82 -100
10 to 20 GHz -65 -73 -76 -100

Phase noise decreases 6 dB/octave below 500 MHz and reaches a floor of <-140 dBc/Hz.

General Specifications

Operating Temperature Range:0˚ to + 55˚ C
Size:426 mm W x 133 mm H x 498 mm D (16.8 in x 5.2 in x 19.6 in)
Weight:< 16 kg (35 lb)
Power:90 to 132 V , 48 to 440 Hz; 198 to 264 V, 48 to 66 Hz; 400 V A max.
EMC:Meets or exceeds EN55011/CISPR 11/1990, Class A and

MIL-STD-461C Part 2 RE02, CE03, CS02, RS03

HP 83731B, 83732B Modulation Specifications

Pulse Modulation

On/Off Ratio:> 80 dB
Rise/Fall Times:< 10 ns
Minimum Pulse Width:< 25 ns, 1 to 20 GHz

Internal Multimode Pulse Modulation Source

Modes:Internal free-run, triggered, doublet, and gated burst modes
Pulse Repetition Frequency:3 Hz to > 3 MHz
Pulse Width:25 ns to 419 ms
Pulse Delay:–419 ms to +419 ms, free-run mode; 225 ns to 419 ms,

triggered mode

Minimum Pulse Parameter Resolution:25 ns

Frequency Modulation

Rates:1 kHz to 1 MHz
Maximum Deviation:10 MHz pk, 2 to 20 GHz; 5 MHz pk, 1 to 2 GHz;

decreases by a factor of 2 for each octave below 1 GHz

Maximum Modulation Index:> 300

Option 800 Analog Phase Modulation

Sensitivity:Two ranges
Maximum Deviation:

Frequency Low range High range

2 to 20 GHz 4 rad 200 rad
1 to 2 GHz 2 rad 100 rad

0.5 to 1 GHz 1 rad 50 rad

0.256 to 0.5 GHz 0.5 rad 25 rad

Logarithmic Amplitude Modulation

Depth:> 60 dB
Sensitivity:–10 dB/V
Step Response:< 5 µs for 50 dB step

Linear Amplitude Modulation

Sensitivity:Two ranges selectable: 30% Vpk+ 100% V

pk

Maximum Depth:90% (> 90% typical)

Key Literature

HP 83711B/12B and HP 83731B/32B Technical Data, p/n 5963-6615E

Ordering Information

HP 83711BSynthesized CW Generator
HP 83712BSynthesized CW Generator
HP 83731BSynthesized Signal Generator
HP 83732BSynthesized Signal Generator

The following options apply to all models:

Opt 1E1Add 110 dB Output Step Attenuator
Opt 1E2Add High-Performance Modulation Generator

1

Opt 1E5Add High-Stability Timebase
Opt 1E8Add 1 Hz Frequency Resolution
Opt 1E93.5 mm RF Output Connector
Opt 800Add Analog Phase Modulation

1

Opt 0B0Delete Manual Set
Opt 0B1Extra User’ s Guide
Opt 0BVService Manual (Component Level)
Opt 0BWService Manual (Assembly Level)
Opt 0BXService Manual (Assembly

and Component Level)

Opt 1CMRackmount Kit (HP p/n 5062-3977)
Opt 1CPRackmount and Handle Kit (HP p/n 5062-3983)
Opt 1CRRack Slide Kit (HP p/n 1494-0059)
Opt W30Three Additional Years Return-to-HP Service:

HP 83711B
HP 83712B
HP 83731B
HP 83732B

1

Available on the HP 83731B/32B only.

Resolution:0.01 dB
Accuracy(–4 dBm to maximum specified leveled output power):

10 MHz to 50 MHz, ±1.3 dB
50 MHz to 20 GHz, ±1.0 dB

Accuracy(over all specified temperatures, and power levels):

10 MHz to 50 MHz, ±2.3 dB
50 MHz to 20 GHz, ±2.0 dB

Flatness:±0.5 dB

Spectral Purity

Harmonics:

HP 83711B/83712B, < –50 dBc (at levels < + 6 dBm)
HP 83731B/83732B, < –55 dBc (at levels < + 6 dBm)

Sub-Harmonics:None
Non-Harmonic Spurious(> 3 kHz):–60 dBc
Phase Noise(@ 10 kHz offset):500 MHz: –103 dBc/Hz;

2 GHz: –92 dBc/Hz; 18 GHz: –76 dBc/Hz
(Phase noise decreases 6 dB/octave below 500 MHz and reaches
a floor of < –140 dBc/Hz)

Internet URL www.hp.com/go/tmc00 Product & Order Info See page 607