Anritsu 68167C Data Sheet

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Microwave/Millimeterwave Synthesizers

68C/69B Family

0.1 Hz to 110 GHz

The Smart Choice for Any Application

VALUE WITHOUT COMPROMISE

Your microwave signal generation requirements have never been tougher, and yet your capital equipment budget has never been tighter. You need the most value you can get in a synthesizer, but you can’t compromise performance. You need a synthesizer that meets today’s needs yet can be upgraded at a reasonable cost to satisfy future requirements without shattering your test equipment budget. Anritsu’s 68C/69B series of synthesizers deliver the highest performance and the highest value available today. Match your application to one of these source types:

High Performance Signal Generators

The ultimate in full-function signal generation. They provide all the features of the other families along with comprehensive, high-performance modulation for signal simulation applications. Additional features in these units include:

■

Internal pulse generator with swept delay capability for moving target simulation

■

Flexible pulse triggering including free-run, delayed, gated, and composite

■

0 to 90% AM, log or linear, over DC to 100 kHz rates

■

Four FM modes for up to 10 MHz at 8 MHz rates or 100 MHz deviation at 100 Hz rates

■

Optional phase modulation (ΦM) up to 400 radians at 1 MHz rates

■

Internal AM, FM, and ΦM generators, each with 7 modulating waveforms

■

Optional user-defined, downloaded complex modulation

■

Optional AM SCAN modulator with 60 dB modulation depth

Anritsu Synthesized Signal Generators

All the features of the CW generators plus analog sweep and external modulation for network analysis and A.T.E. applications.

■

Fast analog sweep

■

External FM, locked or unlocked

■

External AM, log or linear

Anritsu Synthesized CW Generators

These basic signal sources provide accurate outputs over a wide frequency and power range for Local Oscillator duty and other CW applications.

■

Broad frequency coverage including 0.1 Hz to 65 GHz in a single coax output

■

Ultra-low SSB phase noise and spurious

■

+17 dBm guaranteed leveled power to 20 GHz

■

0.1 Hz optional frequency resolution

■

<5 ms switching time for <100 MHz sweep steps

■

Digital frequency sweep and digital power sweep

■

Wide dynamic range with accurate output levels

■

Intuitive, menu-driven front panel

68XXXC AND 69XXXB

XXXC AND 69XXXB

42 Models

Provide the precise capability your application needs.

Function Keys

Group instrument functions for simple operation. Configure GPIB interface and input/output connectors. Initiate security mode and self-test diagnostics. Save and recall up to 10 front panel instrument states.

Easy to Read

Backlit LCD display presents instrument status and measurement setup menus.

Softkey Menus

lead you step-by-step to the desired instrument setup. Intuitive menu flow virtually eliminates opening the operating manual! (Open it anyway, there’s other good information in it.)

Comprehensive Modulation

for complex signal simulation. Internal modulation sources provide seven modulating waveforms plus user-defined modulation.

FAMILY SYNTHESIZERS

Conveniently Enter and Edit Parameters

with the numeric keypad, cursor/increment-decrement key, or rotary data knob.

At 13.3 cm High

You get maximum performance in the minimum A.T.E. rack space.

Set Frequency from 0.1 Hz to 65 GHz in 0.1 Hz Steps.

Set power levels from +17 to -120 dBm in 0.01 dB steps.

TO THE ULTIMATE

INTERCHANGEABLE VIRTUAL INSTRUMENTS STANDARD

In local oscillator and other basic-signal applications, you need high output power, low phase noise, excellent frequency stability and low spurious signal levels. The 69017B provides +17 dBm output power while ultra-low SSB phase noise and spurious signals below –60 dBc preserve signal fidelity. Oven-stabilized internal reference oscillators with <5x10

–10

per day frequency stability keep you on channel. When you need to add broader frequency coverage, modulation, or frequency and power sweep, simply upgrade to the performance you need.

Anritsu’s 69397B synthesized signal generator provides the broadest frequency coverage and lowest phase noise today, 0.1 Hz to 65 GHz in a single instrument! If even 65 GHz is not sufficient, Anritsu millimeter wave source modules can extend your frequency range to 110 GHz with greater than 0 dBm output power. Of course, not everyone needs 65 GHz which is why we also offer models to 8.4, 20, 40, 50 and 60 GHz. And every model is upgradeable with our economical upgrades.

High output power, power sweep analog and digital frequency sweep, the most comprehensive internal modulation, the broadest frequency coverage and the lowest phase noise on the planet make the 69397B the signal source of choice in your most stringent applications.

The 68C/69B’s common, configurable platform allows Anritsu to configure a synthesizer that matches your requirements. Whether you need a basic synthesized CW generator for local oscillator use, or a full-featured configured 65 GHz signal generator with analog sweep and user-defined modulation, or anything in between. Anritsu has a synthesizer that matches your needs. Every model is easily upgraded to higher performance if your requirements change. You can’t go wrong! Select the synthesizer that is right for your applications today. Economical upgrades ensure that your 68C/69B synthesizer will continue to satisfy your changing test requirements.

42 MODELS MATCH ANY REQUIREMENT

FROM THE BASIC

The IVI standard defines a standard instrument driver model that enables instrument interchangeability and interoperability without software changes. Anritsu’s IVI-driver supported synthesizer minimizes instrument development and maintanence cost through the use of IVI-standard interfaces as well as instrument-specific interfaces for unique instrument features. The IVI standard provides a single driver that supports the common application development environments such as Visual Basic, Visual C++, and Labview. The flexible I/O model supports new communication technologies such as USB and Firewire.

Anritsu Corporation leads the way with IVI technology, having released the first COM-based IVI driver supporting the Signal Generator instrument class, and includes the driver with every 68C and 69B series synthesizer. As an active member of the IVI Foundation, Anritsu supports the Foundation’s drive toward instrument driver standardization as a powerful means of delivering interchangeable ATE instrumentation solutions.

PERFORMANCE WITHOUT PEER

Anritsu’s 69000B series utilize state-of-the-art technology to deliver extremely low SSB phase noise. These units are ideal as low-jitter clocks, references for LASER and other optical applications, and in high-bit-rate digital modulation systems where low phase noise is a critical specification.

Automatic Test Equipment

The Anritsu 68C/69B series are your best choice for A.T.E. applications. They pack the highest performance available in a single 13.3 cm package to minimize rack space. High output power assures adequate signal strength to the device under test even after A.T.E. switching and cabling losses. Accurately leveled output power to –120 dBm in 0.01 dB steps facilitates receiver sensitivity measurements. Fast 5 ms switching time maximizes system throughput. Internal list mode frees the A.T.E. controller to perform measurement analysis tasks. Optional SCPI programmability and free application drivers, including the IVICOM driver and National Instruments LabView

drivers, save

you time and money in code generation and maintenance.

One-box, Ultra-clean RF and Microwave Signal Solutions

The Anritsu “El Toro” synthesizers are now available with the new ultra-low phase noise Digital Downconverter. The new DDC offers ultra-low SSB phase noise in the 10 MHz to 2.2 GHz frequency range, where the highly congested communication bands require extra clean signals. The DDC phase noise performance is typically 30-50 dB better than other microwave synthesizers and comparable to the best RF synthesizers in the market.

The Digital Downconverter produces 10 MHz to 2.2 GHz signals by successive binary division of the synthesizer’s microwave drive signal, so the DDC does not introduce non-harmonic spurious, which is a problem in mixer-based downconverters. Also, phase perturbations of the carrier are reduced with each successive frequency division, so phase noise decreases as the output frequency is decreased.

Now with the new DDC, Anritsu synthesizers are true one-box solutions for ultra-clean RF and microwave signal generation, offering outstanding performance in applications that previously required a separate RF synthesizer.

-40

-50

-60

-70

-80

dBc / Hz

-90

-100

-110

-120 10 100

1000

Offset from Carrier (Hz)

SSB Phase Noise at 10 GHz

10000 100000

69000B

Competitor A

Competitor B

Competitor C

Competitor D

Competitor E

Competitor F

IN EVERY APPLICATION

Perfect for Component Test

The 68100C series are your ideal component test signal sources. Analyze key communications, electronic warfare and RADAR components at baseband, IF and carrier frequencies to 65 GHz. Analyze extremely high-Q components with the optional 0.1 Hz frequency resolution. Step sweep mode delivers synthesized frequency accuracy, or choose analog sweep for the fastest possible sweep times.

With <–60 dBc specified spurious levels, network analysis and power measurement errors are eliminated. Compression measurements are simple with the 0.01 dB resolution available in power sweep mode.

Sophisticated master/slave capability permits two synthesizers to sweep synchronously for mixer or frequency converter measurements. Up, down, harmonically related, and many other inter-dependent sweeps can be configured with the digitally-controlled master/slave capability.

Superior Signal Simulation Aids Receiver Testing

AM, FM, phase modulation, pulse modulation, scan modulation and user-defined modulation make the Anritsu 69300B series perfect for signal simulation.

Internal modulation generators offer 7 modulating waveforms plus optional user-defined modulation waveforms. Internal Gaussian and uniform noise capabilities provide controlled clock jitter for digital receiver testing.

Advanced internal pulse modulation generates single and multiple pulses, for the ultimate in radar blind spot and recovery time testing. In addition, Anritsu’s unique pulse generator provides moving target simulation, radar and fading simulation.

User-defined modulation capability enables generation of custom modulated waveforms. Two internal arbitrary waveform generators simulate ASK, PSK, or FSK waveforms as well as antenna scan patterns, IFF patterns and TACAN waveforms without the need for external modulation sources.

CW Mode

Output: Twenty independent, presettable CW frequencies

(F0 – F9 and M0 – M9).

Accuracy: Same as internal or external 10 MHz time base.

Internal Time Base Stability:

with aging: < 2 x 10-8/day (<5 x 10

–10

/day with Option 16)

with temperature: < 2 x 10

-8

/°C over 0°C to 55°C

(<2 x 10

-10

/°C with Option 16)

Resolution: 1 kHz (0.1 Hz with Option 11)

External 10 MHz Reference Input: Accepts external 10 MHz

±100 Hz, –10 to +20 dBm time base signal. Automatically disconnects the internal high-stability time-base option, if installed BNC, rear panel, 50 Ω impedance.

10 MHz Reference Output: 0 dBm into 50 Ω, AC coupled, from

rear panel BNC connector.

Switching Time (typical maximum):

Units with maximum frequency ≥ 20 GHz: <40 ms to be within

1 kHz of final frequency

Units with maximum frequency of 8.4 GHz: <15 ms to within

1 kHz of final frequency

Analog Sweep Mode

(681XXC, 683XXC, 691XXB and 693XXB only)

Sweep Width:

Independently selected from 1 MHz to full

frequency range.

Accuracy:

The lesser of: ±30 MHz or (±2 MHz + 0.25% of sweep width) for

sweep speeds of ≤50 MHz/ms

Sweep Time Range: 30 ms to 99 seconds

Phase-Locked Step Sweep Mode

Sweep Width: Independently selected, 1 kHz (0.1 Hz with

Option 11) to full range.

Accuracy: Same as internal or external 10 MHz time base.

Resolution (Minimum Step Size): 1 kHz (0.1 Hz with Option 11) Number of Steps: Variable from 1 to 10,000

Step Size: 1 kHz (0.1 Hz with Option 11) to the full frequency range

of the instrument. (If the step size does not divide into the selected frequency range, the last step is truncated.)

Step Time:

Step Sweep: Variable from 1 ms/step to 99 seconds/step.

Dwell time begins after phase lock.

Fixed Rate Step Sweep: Variable from 20 ms/step to

99 seconds/step. Dwell time includes phase lock time.

Switching Time (typical maximum):

Units having a high-end frequency of ≥20 GHz:

<15 ms + 1 ms/GHz step size or <40 ms, whichever is less.

Units having a high-end frequency of 8.4 GHz: <7 ms

Alternate Sweep Mode

Sweeps alternately between any two sweep ranges. Each sweep range may be associated with a different power level.

Manual Sweep Mode

Provides stepped, phase-locked adjustment of frequency between sweep limits. User-selectable number of steps or step size.

List Sweep Mode

Under GPIB control or via the front panel, up to 4 tables with 2000 non-sequential frequency/power sets can be stored and then addressed as a phase-locked step sweep. One table of 2000 points is stored in non-volatile memory, all other tables are stored in volatile memory.

Switching Time (typical maximum):

Units having a high-end frequency of ≥ 20 GHz: <25 ms to be

within 1 kHz of final frequency.

Units having a high-end frequency of 8.4 GHz: <5 ms to be

within 1 kHz of final frequency.

Programmable Frequency Agility

Under GPIB control, up to 3202 non-sequential frequency/ power sets can be stored and then addressed as a phaselocked step sweep. Data is stored in volatile memory.

Markers

Up to 20 independent, settable markers (F0 – F9 and M0 – M9).

Video Markers:

+5V or –5V marker output, selectable from system

menus. AUX I/O connector, rear panel.

Intensity Markers (Available in analog sweeps of

<1 second sweep time):

Produces an intensified dot on trace,

obtained by momentary dwell in RF sweep.

Marker Accuracy: Same as sweep frequency accuracy.

Marker Resolution :

Analog Sweep: 1 MHz or Sweep Width/4096,

whichever is greater.

Step Sweep: 1 kHz (0.1 Hz with Option 11)

Sweep Triggering

Sweep triggering is provided for Analog Frequency Sweep if applicable, Step Frequency Sweep, List Frequency Sweep, and CW Power Sweep.

Auto: Triggers sweep automatically.

External: Accepts a TTL low to high transition at AUX I/O connector

on rear panel to trigger a sweep.

Single: Triggers, aborts, and resets a single sweep. Reset sweep

may be selected to be at the top or bottom of the sweep. The 68100C/300C and 69100B/300B pen lift will activate at sweep times ≥1 second.

SPECIFICATIONS

Synthesizer harmonics are usually worst at maximum output power. The excellent 68C/69B harmonic performance is demonstrated by this graph of a typical second harmonic level measured at maximum output power.

SPECTRAL PURITY

All specifications apply to the phase-locked CW and Step Sweep modes at the lesser of +10 dBm output or maximum specified leveled output power, unless otherwise noted.

SPURIOUS SIGNALS Harmonic and Harmonic Related (dBc)

Non-harmonic (dBc)

Single-Sideband Phase Noise 68xxxC (dBc/Hz)

Single-Sideband Phase Noise 69xxxB (dBc/Hz)

Frequency Range Standard with Option 15

≥0.1 Hz to <10 MHz (Option 22)

–30 –30

≥10 MHz to ≤50 MHz –30 –30

>50 MHz to ≤2 GHz –40 –40

>2 GHz to ≤20 GHz –60 –50

>20 GHz to ≤40 GHz –40 –40

50 GHz Units >40 GHz to ≤50 MHz –40 X

60 GHz Units >40 GHz to ≤60 MHz –30 X

65 GHz Units >40 GHz to ≤65 MHz –25 X

Frequency Range 68xxxC 69xxxB

≥10 MHz to ≤2 GHz –40 –40

>2 GHz to ≤65 GHz –60 –60

≥10 MHz to ≤2.2 GHz (Option 21) –60 –60

Frequency Range

Offset from Carrier

100 Hz 10 kHz

≥0.1Hz to <10 MHz (Option 22) –90 –130

≥10 MHz to <2 GHz –77 –86

≥2 GHz to ≤6 GHz –78 –86

>6 GHz to ≤10 GHz –73 –83

>10 GHz to ≤20 GHz –66 –78

>20 GHz to ≤40 GHz –60 –72

>40 GHz to ≤65 GHz –54 –64

1 kHz

–120

–88

–86

–78

–75

–69

100 kHz

–130

–100

–102

–100

–94

–88

>100 MHz to ≤2.2 GHz (Option 21) –50 –50

≥10 MHz to ≤100 MHz (Option 21) –40 –40

≥0.1 Hz to <10 MHz (Option 22) –30 –30

Frequency Range

Offset from Carrier

10 Hz 1 kHz 10 kHz 100 kHz 1 MHz

≥0.1Hz to <10 MHz (Option 22) –60 –120 –130 –130 –130

≥10 MHz to ≤15.625 MHz (Option 21) –101 –140 –142 –141 –145

>15.625 MHz to ≤31.25 MHz (Option 21) –95 –135 –137 –137 –145

>31.25 MHz to ≤62.5 MHz (Option 21) –89 –134 –136 –136 –144

>62.5 MHz to ≤125 MHz (Option 21) –83 –133 –135 –133 –144

>125 MHz to ≤ 250 MHz (Option 21) –77 –130 –132 –130 –143

>250 MHz to ≤ 500 MHz (Option 21) –71 –125 –128 –124 –142

>500 MHz to ≤ 1050 MHz (Option 21) –65 –119 –122 –119 –138

>1050 MHz to ≤ 2200 MHz (Option 21) –59 –113 –116 –113 –135

≥10 MHz to <2 GHz –57 –100 –102 –102 –111

≥2 GHz to ≤6 GHz –50 –107 –110 –107 –130

>6 GHz to ≤10 GHz –45 –104 –107 –107 –128

>10 GHz to ≤20 GHz –39 –98 –104 –102 –125

>20 GHz to ≤40 GHz –33 –92 –98 –96 –119

>40 GHz to ≤65 GHz –27 –86 –92 –90 –113

100 Hz

–90

–131

–125

–119

–113

–107

–101

–95

–89

–83

–80

–75

–69

–63

–57

-20

-30

-40

-50

(dBc)

-60

-70

2.0

Carrier Frequency (GHz)

13.5

Typical 68C single-sideband phase noise at 10 GHz carrier.

Typical 69B single-sideband phase noise at 10 GHz carrier.

RF Output

POWER LINE and FAN ROTATION SPURIOUS EMISSIONS (dBc)

RESIDUAL FM (CW and Step Sweep modes, 50 Hz - 15 kHz BW)

RESIDUAL FM (Analog Sweep and Unlocked FM modes, 50 Hz - 15 kHz BW)

AM Noise Floor:

Typically –145 dBm/Hz at 0 dBm output and offsets >5 MHz from carrier.

TYPICAL SINGLE-SIDEBAND PHASE NOISE

The 68C family offers excellent phase noise performance at a moderate cost, while the 69B family offers the ultimate in phase noise performance.

Frequency

Range

Offset from Center

<300 Hz 300 Hz to 1 kHz >1 kHz

≥0.01 to ≤8.4 GHz <– 50 <– 60 <– 60

>8.4 to ≤20 GHz <–46 <– 56 <– 60

>20 to ≤40 GHz <–40 <– 50 <–54

>40 to ≤65 GHz <–34 <– 44 <–48

Frequency Range

Residual FM

(Hz RMS)

69xxxB

≥0.01 to ≤8.4 GHz < 40

>8.4 to ≤20 GHz <40

>20 to ≤40 GHz <80

>40 to ≤65 GHz < 160

68xxxC

<120

<220

<440

<880

Frequency

Range

Unlocked Narrow

FM Mode

(kHz RMS)

Unlocked Wide

FM Mode or Analog

Sweep (kHz RMS)

≥0.01 to ≤ 20 GHz

<5 <25

>20 to ≤ 40 GHz

<10 <50

>40 to ≤ 65 GHz

<20 <100

≥10 to ≤500 MHz (Option 21) <– 68 <– 72 <– 72

>1050 to ≤2200 MHz (Option 21) <–56 <– 66 <– 66

>500 to ≤1050 MHz (Option 21) <–62 <–72 <–72

Anritsu

-100

-110

-120

-130

-140

-150

L(f) dBc/Hz

-40

-50

-60

-70

-80

-90

100Hz 1KHz 10KHz 100KHz 1MHz

68000C

10 GHz

time: 13h/48m

10MHz

Anritsu

-100

-110

-120

-130

-140

-150

L(f) dBc/Hz

-40

-50

-60

-70

-80

-90

100Hz 1KHz 10KHz 100KHz 1MHz

69000B

10 GHz

time: 16h/14m

10MHz

MAXIMUM LEVELED OUTPUT POWER With Option 15 (High Power) Installed

Power level specifications apply at 25°± 10°C.

MAXIMUM LEVELED OUTPUT POWER

RF OUTPUT

Minimum Leveled Output Power Range

Standard Unit:

Without an attenuator: –15 dBm

(–20 dBm typical).

With an attenuator: –120 dBm. With an electronic attenuator:

–140 dBm.

Unit with Option 15B, High Power:

Without an attenuator: –5 dBm

(–10 dBm typical). With an attenuator: –115 dBm (–120 dBm typical). For units with a high frequency limit >40 GHz and units with Option 15: minimum settable power is –105 dBm (–110 dBm typical).

With an electronic attenuator:

–115 dBm (–110 dBm typical).

Model

Number

Frequency

Range (GHz)

Output

Power (dBm)

Output Power

with Step

Attenuator

(dBm)

Output Power

with Electronic

Step Attenuator

(dBm)

Option 22

≥0.1 Hz to ≤10 MHz

+13.0 +11.0 +9.0

68x17C & 69x17B

≥0.01 to ≤8.4

+13.0 +11.0 +9.0

68x37C & 69x37B

≥2 to ≤8.4

>8.4 to ≤20

+13.0 +13.0

+11.0 +11.0

+9.0 +3.0

68x47C & 69x47B

≥0.01 to ≤8.4

>8.4 to ≤20

+13.0 +13.0

+11.0 +11.0

+9.0 +3.0

68x67C & 69x67B

≥0.01 to <2

≥2 to ≤20

>20 to ≤40

+13.0

+9.0 +6.0

+11.0

+7.0 +3.0

Not Available

68x77C & 69x77B

≥0.01 to <2

>2 to ≤20 >20 to ≤40 >40 to ≤50

+12.0 +10.0

+2.5 +2.5

+10.0

+8.5

0.0

–1.0

Not Available

68x87C & 69x87B

≥0.01 to <2

≥2 to ≤20

>20 to ≤ 40

>40 to ≤50 >50 to ≤60

+12.0 +10.0

+2.5 +2.0 +2.0

+10.0

+8.5

0.0

–1.5 –2.0

Not Available

68x97C & 69x97B

≥0.01 to <2

≥2 to ≤20

>20 to ≤ 40

>40 to ≤50 >50 to ≤65

+12.0 +10.0

+2.5

0.0

–2.0

Not Available Not Available

Model

Number

Frequency

Range (GHz)

Output

Power (dBm)

Output Power

with Step

Attenuator

(dBm)

Output Power

with Electronic

Step Attenuator

(dBm)

68x17C & 69x17B

≥0.01 to ≤ 2

≥2 to ≤8.4

+13.0 +17.0

+11.0 +15.0

+9.0

+11.0

68x37C & 69x37B

≥2 to ≤8.4

>8.4 to ≤20

+17.0 +17.0

+15.0 +15.0

+11.0

+7.0

68x47C & 69x47B

≥0.01 to ≤ 2

>2 to ≤8.4

>8.4 to ≤20

+13.0 +17.0 +17.0

+11.0 +15.0 +15.0

+9.0

+11.0

+7.0

68x67C & 69x67B

≥0.01 to ≤ 20

>20 to ≤40

+13.0

+6.0

+11.0

+3.0

Not Available

Option 21

0.01 to ≤2.2 MHz

+13.0 +11.0 +9.0

RF OUTPUT

Typical maximum 68x47C and 69x47B available output power

Typical maximum 68x69C and 69x69B available output power

Typical maximum 68x87C and 69x87B available output power

The 68C/69B provide sufficient power to drive L.O.S. even after system and cabling losses.

Accuracy and Flatness

Step Sweep and CW Modes

➀ Typical ➁ 0 to 25 dB or to minimum rated power, whichever is higher

Typical output level accuracy and flatness at +10 dBm and –103 dBm

Anritsu’s unique power correction provides the best low-level power accuracy available.

Power Level Switching Time

(to within specified accuracy): Without change in step attenuator: <3 ms typical

With change in step attenuator: <20 ms typical

With change in electronic step attenuator: <3 ms typical.

Power level changes across –70 dB step will result in 20 ms delay.

Analog Sweep Mode (typical)

Frequency (GHz)

Accuracy:

0-25 dB

➁

25-60 dB

>60 dB

±1.0 dB ±1.0 dB ±1.0 dB

±1.5 dB ±1.5 dB

±2.5 dB

➀

±1.5 dB

±3.5 dB

➀

±3.5 dB

➀

±1.5 dB

N/A N/A

Flatness:

0-25 dB

➁

25-60 dB

>60 dB

±0.8 dB ±0.8 dB ±0.8 dB

±1.1 dB ±1.1 dB

±2.1 dB

➀

±1.1 dB

±3.1 dB

➀

±3.1 dB

➀

±1.1 dB

N/A N/A

0.01-40 40-50 50-60 60-65

Frequency (GHz)

Accuracy:

0-12 dB

12-30 dB

30-60 dB

60-122 dB

±2.0 dB ±3.5 dB ±4.0 dB ±5.0 dB

±2.0 dB ±4.6 dB ±5.2 dB ±6.2 dB

±3.0 dB ±5.6 dB ±6.2 dB ±7.2 dB

Flatness:

0-12 dB

12-30 dB

30-60 dB

60-122 dB

±2.0 dB ±3.5 dB ±4.0 dB ±5.0 dB

±2.0 dB ±3.0 dB ±3.5 dB ±4.0 dB

±2.0 dB ±4.1 dB ±4.6 dB ±5.2 dB

±2.5 dB ±5.1 dB ±5.6 dB ±6.2 dB

0.01-0.05 0.05-20 20-40 40-65

Attenuation

Below Max

Power

Attenuation

Below Max

Power

25.0

20.0

15.0

Output Power (dBm)

10.0

0.01 5

Frequency (GHz)

Option 15

Standard with Option 2A

10 15

20.0

15.0

10.0

Output Power (dBm)

5.0

0.01 2 8 12.4

Frequency (GHz)

Option 15

Standard with Option 2A

26.520

20.0

15.0

Standard with Option 2D

10.0

Output Power (dBm)

5.0

0.01 2 8 12.4

26.520

Frequency (GHz)

50 60

.01 8 20

-100

-101

-102

-103

-104

-105

-106 .01 8 20

Frequency (GHz)

➂ When Option 8 Power Meter is installed, Option 7 (Delete AM/FM

Generators) is not available.

Other Output Power Specifications

Output Units: Output units selectable as either dBm or mV.

Selection of mV assumes 50Ω load. All data entries and displays are in the selected units.

Output Power Resolution: 0.01 dB or 0.001 mV

Source Impedance: 50Ω nominal

Source SWR (Internal Leveling): <2.0 typical Power Level Stability with Temperature: 0.04 dB/°C typical Level Offset: Offsets the displayed power level to establish a new

reference level.

Internal Leveling: Power is leveled at the output connector in

all modes.

External Leveling:

External Detector: Levels output power at a remote detector

location. Accepts a positive or negative 0.5 mV to 500 mV input from the remote detector. EXT ALC ADJUST adjusts the input signal range to an optimum value. BNC connector, front and rear panel. External Power Meter: Levels output power at a remote power meter location. Accepts a ±1V full scale signal from the remote power meter. EXT ALC ADJUST adjusts the input signal range to an optimum value. BNC connector, front and rear panel.

External Leveling Bandwidth:

30 kHz typical in Detector mode.

0.7 Hz typical in Power Meter mode.

User Level Flatness Correction:

Number of points: 2 to 801 points per table Number of tables: 5 available Entry modes: GPIB power meter or computed data

CW Power Sweep

Range: Sweeps between any two power levels at a single

CW frequency.

Resolution: 0.01 dB/step (Log) or 0.001 mV/step (Linear)

Accuracy: Same as CW power accuracy.

Step Size: User-controlled, 0.01 dB (Log) or 0.001 mV (Linear) to

the full power range of the instrument.

Step Dwell Time: Variable from 1 ms to 99 seconds. If the sweep

crosses a step attenuator setting, there will be a sweep dwell of approximately 20 ms to allow setting of the step attenuator.

Sweep Frequency/Step Power

A power level step occurs after each frequency sweep. The power level remains constant for the length of time required to complete each sweep.

Internal Power Measurement

(Option 8 on 68300C and 69300B only)

➂

Sensors: Compatible with Anritsu 560-7, 5400-71, or

6400-71 Series Detectors. Rear panel input.

Range: +16 dBm to −35 dBm.

Accuracy: ±1 dB (+10 dBm to –10 dBm)

± 2 dB (-10 dBm to –35 dBm)

Resolution: 0.1 dB minimum

Amplitude Modulation

All amplitude modulation specifications apply at 50% depth, 1 kHz rate, with RF level set 6 dB below maximum specified leveled output power, unless otherwise noted.

AM Depth (typical):

0-90% linear; 20 dB log

AM Bandwidth (3 dB): DC to 50 kHz minimum

DC to 100 kHz typical

Flatness (DC to 10 kHz rates): ±0.3 dB

Accuracy: ±5%

Distortion: <5% typical

Incidental Phase Modulation (30% depth, 10 kHz rate):

<0.2 radians

External AM Input: Log AM or Linear AM input, front or rear-panel

BNC, 50 Ω or 600 Ω input impedance. All options selectable from modulation menu.

AM Sensitivity:

Log AM: Continuously variable from 0 dB per volt to

25 dB per volt.

Linear AM: Continuously variable from 0% per volt to

100% per volt.

Maximum Input: ±1V

Frequency Modulation

Maximum FM Deviation:

Locked Mode (1 kHz to 500 kHz rates): The lesser of ±10 MHz

or rate x 300

Unlocked Narrow Mode (DC to 500 kHz rates) : ± 10 MHz Unlocked Wide Mode DC to 100 Hz rates: ± 100 MHz

FM Bandwidth (3 dB):

Locked Mode : 1 kHz to 500 kHz Unlocked Narrow Mode: DC to 500 kHz Unlocked Wide Mode : DC to 100 Hz

Flatness locked mode (10 kHz to 500 kHz rates: ±1 dB

Accuracy (100 kHz rate, ±1 V input): 10% (5% typical)

External FM Input: Front or rear panel BNC, 50 Ω or 600 Ω input

impedance. All options selectable from modulation menu.

FM Sensitivity: Continuously variable from ±10 kHz per volt to

±20 MHz per volt (Locked and Unlocked Narrow FM modes), or ±100 kHz per volt to ±100 MHz per volt (Unlocked Wide FM mode), selectable from modulation menu.

Maximum Input: ±1V

Square Wave Modulation

The RF output can be pulse modulated via an external modulating signal or an internal square wave generator.

On/Off Ratio:

>50 dB

Rise/Fall Time: <1 µs typical

Internal Square Wave Generator: Four square wave signals

(400 Hz, 1 kHz, 7.8125 kHz, and 27.8 kHz), selectable from modulation menu.

Accuracy: Same as internal or external 10 MHz time base. Square Wave Symmetry: 50% ± 5%

External Input: Front or rear-panel BNC, selectable from

modulation menu.

Drive Level: TTL compatible input Minimum Pulse Width: >5 µs Input Logic: Positive-true or negative-true, selectable from

modulation menu.

681XXC/691XXB MODULATION

Amplitude Modulation

All amplitude modulation specifications apply at 50% depth, 1 kHz rate, with RF level set 6 dB below maximum specified leveled output power, unless otherwise noted.

AM Depth (typical): 0-90% linear; 20 dB log

AM Bandwidth (3 dB): DC to 50 kHz minimum

DC to 100 kHz typical

Flatness (DC to 10 kHz rates): ±0.3 dB

Accuracy: ±5%

Distortion: < 5% typical

Incidental Phase Modulation (30% depth, 10 kHz rate):

< 0.2 radians typical

External AM Input: Log AM or Linear AM input, front or rear-panel

BNC, 50 Ω or 600 Ω input impedance. All options selectable from modulation menu.

Sensitivity:

Log AM: Continuously variable from 0 dB per volt to

25 dB per volt.

Linear AM: Continuously variable from 0% per volt

to 100% per volt.

Maximum Input: ±1V

Internal AM Generator:

Waveforms: Sinusoid, squarewave, triangle, positive ramp,

negative ramp, Gaussian noise, uniform noise, user-defined

➃

Rate: 0.1 Hz to 1 MHz sinusoidal

0.1 Hz to 100 kHz squarewave, triangle, ramps

Resolution: 0.1 Hz Accuracy: Same as instrument timebase Output: BNC connector, rear panel

Frequency Modulation

Maximum FM Deviation:

Locked Mode (1 kHz to 8 MHz rates): The lesser of ±10 MHz or

rate x 300 Locked Low Noise Mode (50 kHz to 8 MHz rates): The lesser of

±10 MHz or rate x 3

Unlocked Narrow Mode (DC to 8 MHz rates): ±10 MHz Unlocked Wide Mode (DC to 100 Hz rates): ±100 MHz

FM Bandwidth (3 dB):

Locked Mode: 1 kHz to 10 MHz Locked Low Noise Mode: 30 kHz to 10 MHz Unlocked Narrow Mode: DC to 10 MHz Unlocked Wide Mode: DC to 100 Hz

Flatness (locked mode 10 kHz to 1 MHz rates):

➄

±1 dB

Accuracy (100 kHz rate):

➄

10% (5% typical)

Incidental AM (± 1 MHz deviation, 1 MHz rate): <2%

Harmonic Distortion (±1 MHz deviation, 10 kHz rate):

<1%

External FM Input: Front or rear panel BNC, 50 Ω or 600 Ω input

impedance. All options selectable from modulation menu. FM Sensitivity: Continuously variable from ±10 kHz per volt to

±20 MHz per volt (Locked, Locked Low Noise and Unlocked Narrow FM modes), or ±100 kHz per volt to ±100 MHz per volt (Unlocked Wide FM mode), selectable from modulation menu.

Maximum Input: ±1V

Internal FM Generator:

Waveforms: Sinusoid, squarewave, triangle, positive ramp,

negative ramp, Gaussain noise, uniform noise, user-defined

➃

Rate: 0.1 Hz to 1 MHz sinusoidal

0.1 Hz to 100 kHz squarewave, triangle, ramps

Resolution: 0.1 Hz Accuracy: Same as instrument timebase Output: BNC connector, rear panel

Phase Modulation (FM, Option 6)

ΦM Deviation:

Narrow Mode (DC to 8 MHz Rates): The lesser of ±3 radians

or ±5 MHz/rate

Wide Mode (DC to 1 MHz Rates): The lesser of ±400 radians

or ±10 MHz/rate.

ΦM Bandwidth (3 dB, relative to 100 kHz rate):

Narrow Mode: DC to 10 MHz Wide Mode: DC to 1 MHz

ΦM Flatness (relative to 100 kHz rate):

Narrow Mode (DC to 1 MHz rates): ±1 dB Wide Mode (DC to 500 kHz rates): ±1 dB

ΦM Accuracy (at 100 kHz sine wave): 10%

➄

External ΦM Input: Front or rear panel BNC (shares the

FM input), 50 Ω or 600 Ω input impedance. All options selectable from modulation menu. Shares connectors with FM. ΦM Sensitivity: Continuously variable from ±0.0025 radians per

volt to ±5.0 radians per volt (Narrow Φ M mode) or ±0.25 radians per volt to ±500.0 radians per volt (Wide ΦM mode), selectable from modulation menu.

683XXC/693XXB MODULATION

➃

User-defined waveforms are available with Option 10.

➄

For external input, accuracy applies at ±1 V input

Internal ΦM Generator (Shares the Internal FM Generator)

Waveforms: Sine, square, triangle, positive ramp, negative ramp,

Gaussian noise, uniform noise, user defined

➅

Rate: 0.1 Hz to 1 MHz for sine wave

0.1 Hz to 100 kHz for other waveforms

Resolution: 0.1 Hz Accuracy: Same as instrument timebase. Output: BNC connector, rear panel

Pulse Modulation

Pulse modulation specifications apply at maximum rated power, unless otherwise noted.

On/Off Ratio:

>80 dB

Rise/Fall Time (10 to 90%):

10 MHz to 1.0 GHz: <15 ns (<10 ns typical)

1.0 GHz to 65 GHz: <10 ns (<5 ns typical)

Minimum Leveled Pulse Width: <100 ns, ≥2 GHz

<1µs, <2 GHz

Minimum Unleveled Pulse Width: <10 ns

Pulse Overshoot: <10%

➆

Level Accuracy Relative to CW (100 Hz to 1 MHz PRF):

±0.5 dB, ≥ 1 µs pulse width ±1.0 dB, <1 µs pulse width

Video Feedthrough: < ±10 mV, ≥2 GHz

Pulse Width Compression: <8 ns typical

Pulse Delay (typical):

PRF Range:

DC to 10 MHz unleveled 100 Hz to 5 MHz leveled

External Input: Front or rear-panel BNC, selectable from

modulation menu.

Drive Level: TTL compatible input Input Logic: Positive-true or negative-true, selectable from

modulation menu.

Internal Pulse Generator:

Modes:

Free-run, triggered, gated, delayed, singlet, doublet,

triplet, quadruplet

Accuracy: 10 ns (5 ns typical) Inputs/Outputs:

Video pulse and sync out, rear-panel

BNC connectors

Scan Modulation (Option 20)

➈

Frequency Range: 1 to 20 GHz

Attenuation Range: 0 to 60 dB

Flatness: ±2 dB, 0 to 40 dB

±3.5 dB, 40 to 60 dB

Step Response: <1 µs

Sensitivity: −10 dB/V

Insertion Loss (when engaged):

<6 dB, 1 to 18 GHz <8 dB, 18 to 20 GHz

Input: Rear-panel BNC (f) connector

683XXC/693XXB MODULATION

➅ User-defined waveforms are available with Option 10. ➆ For 50, 60 and 65 GHz units, overshoot from 40 to 65 GHz is 20% typical

at rated power.

➇ Period must be longer than the sum of delay and width by 5 clock

cycles minimum.

➈ Option 20, SCAN Modulator is available on models 68337C, 68347C, 69337B

and 69347B only. When Option 20 SCAN Modulator is installed, Option 7 and Option 8 are not available.

Mode Pulse Delay (ns)

External 50

Triggered 100

Triggered with Delay 200

Parameter

Selectable Clock Rate

40 MHz 10 MHz

Pulse Width 25 ns to 419 ms 100 ns to 1.6s

Pulse Period

➇

250 ns to 419 ms 600 ns to 1.6s

Variable Delay

Singlet

Doublet

Triplet

Quadruplet

0 to 419 ms 100 ns to 419 ms 100 ns to 419 ms 100 ns to 419 ms

0 to 1.6s 300 ns to 1.6s 300 ns to 1.6s 300 ns to 1.6s

Resolution 25 ns 100 ns

DIGITAL DOWNCONVERTER SPECIFICATIONS (OPTION 21)

RF Output

Frequency: 10-2200 MHz

Maximum Leveled Output Power: +13 dBm, typically +19 dBm

Spectral Purity

All specifications apply at +10 dBm output, unless otherwise noted.

Harmonic and Harmonic Related:

-40 dBc, ≤100 MHz

-50 dBc, >100 MHz

Non-Harmonic Spurious

-60 dBc

AM Noise:

Typically -145 dBm/Hz at 0 dBm output and offsets >5 MHz from carrier.

Power Line and Fan-Related Spurious (dBc):

Pulse Modulation

On/Off Ratio: >80 dB

Minimum Leveled Pulse Width: 1 µsec

Level Accuracy Relative to CW (100 Hz to 500 kHz PRF):

± 0.5 dB

*Typical

Frequency Range

Offset from Carrier

<300 Hz ≥300 Hz

≥10 MHz to ≤500 MHz -68 -72

>500 MHz to ≤1050 MHz -62 -72

>1050 MHz to ≤2200 MHz -56 -66

Frequency

Range

Rise and Fall

Time

Overshoot

Width

Compression

Video

Feedthrough

>500 to

≤2200 MHz

15 ns 10% 12 ns* ±15 mV*

>125 to

≤500 MHz

<33 ns* <11%* <12 ns* ±70 mV*

>31.25 to

≤125 MHz

<90 ns* <22%* <12 ns* ±130 mV*

≥10 to

≤31.25 MHz

<400 ns* <33%* <40 ns* ±70 mV*

Typical SSB Phase Noise

69B with Option 21 DDC

-20

-30

-40

-50

-60

-70

-80

-90

dBc/Hz

-100

-110

-120

-130

-140

-150

-160 1 Hz 10 Hz 100 Hz 1 kHz 10 kHz 100 kHz 1 MHz 10 MHz

Offset from Carrier

20000 10000 6000 2190 1040 490 240 120 60 30 15 (MHz)

FM/φM Specifications:

69B synthesizers with Option 21 DDC produce output frequencies from 10 MHz to 2.2 GHz by dividing the YTO frequency by 2n. The divisor ranges from 2 at 2.2 GHz to 256 at 10-15.625 MHz. In FM and ΦM modes, FM deviation is divided as well, so deviation at the YTO is greater than at the RF output.

Frequency Modulation (for 691xxB):

Frequency Modulation (for 693xxB):

Phase Modulation:

DIGITAL DOWNCONVERTER SPECIFICATIONS

Parameter Modes Conditions Specification

Deviation

Locked

Locked Low-noise

Unlocked Narrow

Unlocked Wide

Rate= 1 kHz to (Lesser of 8 MHz or 0.03* Fcarrier)

Rate= 50 kHz to Lesser of 8 MHz or 0.03* Fcarrier)

Rate= DC to (Lesser of 8 MHz or 0.03* Fcarrier)

Rate= DC to 100 Hz

±[Lesser of 10 MHz or 300*(mod rate)]/n

±[Lesser of 10 MHz or 3*(mod rate)]/n

±(10 MHz)/n

±(100 MHz)/n

Bandwidth (3 dB)

Locked

Locked Low-noise

Unlocked Narrow

Unlocked Wide

100 kHz rate 100 kHz rate 100 kHz rate

DC rate

1 kHz to (Lesser of 10 MHz or 0.03*Fcarrier)

30 kHz to (Lesser of 10 MHz or 0.03*Fcarrier)

DC to (Lesser of 10 MHz or 0.03*Fcarrier)

DC to 100 Hz

Flatness Locked Rate= 10 kHz to (Lesser of 1 MHz or 0.01*Fcarrier) ±1 dB relative to 100 kHz

Accuracy

Locked and Low-noise

Unlocked Narrow

Rate= 100 kHz, Sinewave, Int. or 1Vpk Ext. 10% (5% typical)

Incidental AM

Locked, Low-noise,

Unlocked Narrow

Rate and Dev.= Lesser of 1 MHz or 0.01*Fcarrier <2% typical

Harmonic Distortion Locked Rate= 10 kHz, Dev.= ±(1 MHz)/n <1%

External Sensitivity

Locked

Locked Low-noise

Unlocked Narrow

Unlocked Wide

±(10 kHz/V to 20 MHz/V)/n

±(100 kHz/V to 100 MHz/V)/n

Parameter Modes Conditions Specification

Deviation

Narrow

Wide

Rate= DC to (Lesser of 8 MHz or 0.03* Fcarrier) Rate= DC to (Lesser of 1 MHz or 0.03* Fcarrier)

±[Lesser of 3 rad or (5 MHz)/(mod rate)]/n

±[Lesser of 400 rad or (10 MHz)/(mod rate)]/n

Bandwidth (3 dB)

Narrow

Wide

100 kHz rate 100 kHz rate

DC to (Lesser of 10 MHz or 0.03*Fcarrier)

DC to (Lesser of 1 MHz or 0.03*Fcarrier)

Flatness

Narrow

Wide

Rate= DC to (Lesser of 1 MHz or 0.01*Fcarrier)

Rate= DC to (Lesser of 500 kHz or 0.01*Fcarrier)

±1 dB relative to 100 kHz rate ±1 dB relative to 100 kHz rate

Accuracy Narrow and Wide 100 kHz, Int. or 1Vpk Ext., sine 10%

External Sensitivity

Narrow

Wide

±(0.0025 rad/V to 5 rad/V)/n

±(0.25 rad/V to 500 rad/V)/n

Frequency Range Divide Radio, n

≥10 to ≤15.625 MHz 256

>15.625 to ≤31.25 MHz 128

>31.25 to ≤62.5 MHz 64

>62.5 to ≤125 MHz 32

>125 to ≤250 MHz 16

>250 to ≤500 MHz 8

>500 to ≤1050 MHz 4

>1050 to ≤2200 MHz 2

Parameter Modes Conditions Specification

Deviation

Locked

Unlocked Narrow

Unlocked Wide

Rate= 1 Hz to (Lesser of 500 kHz or 0.03* Fcarrier)

Rate= DC to (Lesser of 500 kHz or 0.03* Fcarrier)

Rate= DC to 100 Hz

±[Lesser of 10 MHz or 300 (mod rate)]/n

±(10 MHz)/n

±(100 MHz)/n

Bandwidth (3 dB)

Locked

Unlocked Narrow

Unlocked Wide

100 kHz rate 100 kHz rate

DC rate

1 kHz to (Lesser of 500 kHz or 0.03*Fcarrier)

DC to (Lesser of 500 kHz or 0.03*Fcarrier)

DC to 100 Hz

Flatness Locked Rate= 10 kHz to (Lesser of 1 MHz or 0.01*Fcarrier) ±1 dB relative to 100 kHz rate

Accuracy Locked and Unlocked Narrow Rate= 100 kHz, Sineware, Int. or 1Vpk Ext. 10% (5% typical)

External Sensitivity

Locked and Unlocked Narrow

Unlocked Wide

±(10 kHz/V to 20 MHz/V)/n

±(100 kHz/V to 100 MHz/V)/n

Remote Operation

All instrument functions, settings, and operating modes (except for power on/standby) are controllable using commands sent from an external computer via the GPIB (IEEE-488 interface bus).

IEEE-488 Interface Function Subset:

Source Handshake: SH1 Acceptor Handshake: AH1 Talker: T6 Listener: L4 Service Request: SR1 Remote/Local: RL1 Parallel Poll: PP1 Device Clear: DC1 Device Trigger: DT1 Controller Capability: C0, C1, C2, C3, C28 Tri-State Driver: E2

GPIB Status Annunciators: When the instrument is operating in

Remote, the GPIB status annunciators (listed below) will appear in a window on the front panel LCD. REMOTE: Operating on the GPIB (all instrument front panel keys

except for the SYSTEM key and the RETURN TO LOCAL soft-key will be ignored).

LLO (LOCAL LOCKOUT): Disables the RETURN TO LOCAL

soft-key. Instrument can be placed in local mode only via GPIB or by cycling line power.

Command Structures: The instrument responds to the published

GPIB commands and responses of the Anritsu Models 6600, 6700, and 6XX00-series signal sources. When emulating another signal source, the instrument is limited to the capabilities, mnemonics, and parameter resolutions of the emulated instrument.

General

Stored Setups: Stores front panel settings and nine additional

front-panel setups in a non-volatile RAM. A system menu allows saving and recalling of instrument setups. Whenever the instrument is turned on, control settings come on at the same functions and values existing when the instrument was turned off.

Memory Sequencing Input: Accepts a TTL low-level signal

to sequence through nine stored setups. AUX I/O connector, rear panel.

Self-Test: Instrument self-test is performed when the SELF TEST

soft-key is selected. If an error is detected, an error message is displayed in a window on the LCD identifying the probable cause.

Secure Mode: Disables all frequency, power level, and modulation

state displays. Stored setups saved in secure mode remain secured when recalled. Mode selectable from a system menu and GPIB.

System Reset: Returns instrument parameters to predefined

default states or values. Any pending GPIB I/O is aborted. Selectable from the system menu.

Master/Slave Operation: Allows two 68xxxC or 69xxxB output

signals to be swept with a user-selected frequency offset. One unit controls the other via AUX I/O and SERIAL I/O connections.

User Level Flatness Correction: Allows user to calibrate out

path loss due to external switching and cables via entered power table from a GPIB power meter or calculated data. Supported power meters are Anritsu ML243xA, ML4803A and HP 437B, 438A, 70100A. Five user tables are available at up to 801 points/table.

Warm Up Time :

From standby: 30 minutes From cold start (0°C): 120 hours to achieve specified aging day

frequency stability. Instruments disconnected from AC power for more than 72 hours require 30 days to return to specified aging.

Power: 90−132 Vac or 180-264 Vac, 49–440 Hz, 400 VA maximum Standby: With ac line power connected, unit is placed in

standby when front panel power switch is released from the OPERATE position.

Weight: 23 kg maximum

Dimensions: 133 H x 429 W x 597 D mm

RF Output Connector:

Type K female, ≤40 GHz models Type V female, >40 GHz models

Environmental

Storage Temperature Range: –40°C to +75°C

Operating Temperature Range: 0°C to +50°C

Relative Humidity: 5% to 95% at 40°C

Altitude: 4,600 meters, 43.9 cm Hg.

EMI: Meets the emission and immunity requirements of

EN55011:1991/CISPR-11:1990 Group 1 Class A EN50082-1:1997/

EN 61000-4-2:1995 − 4 kV CD, 8 kV AD EN61000-4-3:1997 − 3 V/m ENV50204 – 3 V/m EN61000-4-4: 1995 − 0.5 kV SL, 1 kV PL EN61000-4-5:1995 − 1 kV − 2 kV L-E

MIL-STD-461C Part 2 REO1, REO2, CEO1, CEO3, CSO1,

CSO2, CSO6, RSO3.

INPUTS AND OUTPUTS

AM IN: Accepts an external signal to amplitude modulate the RF

output signal. Front or rear-panel input, 50Ω or 600Ω impedance, both selectable from front-panel modulation menu.

FM IN: Accepts an external signal to frequency modulate the RF

output signal. Front or rear-panel input, 50Ω or 600Ω impedance, both selectable from front-panel modulation menu.

IN: Accepts an external TTL compatible signal to pulse modu-

late the RF output signal. Front or rear-panel input, selectable from front-panel modulation menu.

PULSE TRIG IN: Accepts an external TTL compatible signal to

pulse modulate the RF output signal or trigger or gate the internal pulse generator. Front or rear-panel input, selectable from frontpanel modulation menu.

EXT ALC IN (External ALC Input): Provides for leveling the

RF output signal externally with either a detector or power meter.

RF OUTPUT: Provides for RF output from 50Ω impedance source.

K or V Connector, female. Option 9 moves the RF Output connector to the rear panel.

10 MHz REF IN: Accepts an external 10 MHz ±100 Hz, 0 to

+10 dBm time-base signal. Automatically disconnects the internal high-stability time-base option, if installed. 50Ω impedance.

10 MHz REF OUT: Provides a 0.5V p-p, AC coupled,

10 MHz signal derived from the internal frequency standard. 50Ω impedance.

HORIZ OUT (Horizontal Sweep Output): Provides 0V at the

beginning and +10V at end of sweep, regardless of sweep width. In CW mode, the voltage is proportional to frequency between 0V at low end and +10V at the high end of range. In CW mode, if CW RAMP is enabled, a repetitive 0V to +10V ramp is provided.

AM OUT: Provides video modulating signal from internal

AM generator.

FM OUT: Provides video modulating signal from internal

FM generator.

PULSE VIDEO OUT: Provides video modulating signal from

internal pulse generator or external pulse input.

PULSE SYNC OUT: Provides a TTL compatible signal

synchronized to the internal pulse modulation output.

AUX I/O (Auxiliary Input/Output): Provides for most of the front

and rear panel BNC connections through a single, 25-pin, D-type connector. Supports master-slave operation with another 68XXXC or 69XXXB synthesizer or allows for a single-cable interface with the Model 56100A Scalar Network Analyzer and other ANRITSU instruments. Provides V/GHz and Sequential Sync Connection.

SERIAL I/O (Serial Input/Output): Provides access to RS-232

terminal ports to support service and calibration functions, and master/slave operation.

IEEE-488 GPIB: Provides input/output connections for the General

Purpose Interface Bus (GPIB).

Input/Output Connectors

Nomenclature Type Location Applicable Models

AM IN BNC Front and Rear Pane

68100C and 68300C 69100B and 69300B

FM IN BNC Front and Rear Panel

68100C and 68300C 69100B and 69300B

BNC Front and Rear Panel 68100C and 69100B

PULSE TRIG IN BNC Front and Rear Panel 68300C and 69300B

EXT ALC IN BNC Front and Rear Panel