agilent economy rf signal generators keep your budget in...

Agilent Economy RF Signal GeneratorsKeep Your Budget in Balance…

Product Overview

8648A8648B8648C8648D

1 GHz2 GHz3.2 GHz4 GHz

Receiver testing has reached a new levelof affordability. Ideal for in-channelreceiver testing, Agilent Technologies’additions to the economy line of RF sig-nal generators offer improved perfor-mance at affordable prices. The8648A/B/C/D provide 1, 2, 3.2 and 4 GHzcoverage, respectively, with a simple userinterface and the quality and reliabilityyou expect from Agilent Technologiesproducts.

SensitivitySensitivity measurements are easy to per-form with the economy signal generator’swide dynamic range. Covering the operat-ing range of even the most sensitivereceivers, the 8648A offers +10 to –136dBm, while the 8648B/C/D provide +13 to–136 dBm output power levels. With ±1dB level accuracy to –127 dBm below1GHz, you can be assured of accuraterepeatable measurements every time.

Determine receiver sensitivity in secondsby scrolling through required test levels.With independent amplitude and frequen-cy control knobs, amplitude levels can bechanged almost instantly.

Low RF leakage levels are necessary tosuccessfully test today’s sensitivereceivers. The 8648 series meet theserequirements with typically less than 1 µVleakage (nominally equivalent to 0.1 µVwhen measured with a two-turn loop).

Harmonic DistortionLow modulation distortion is impor-tant for harmonic distortion testing.FM distortion of typically less than0.5% allow you to make these mea-surements with confidence.

Hum and NoiseAccurately characterize receiver humand noise with the low residual FMperformance of the economy RF signal generators.

8648 series

< 249 MHz < 7 Hz< -120 dBc/Hz(fc=500 MHz)

< -116 dBc/Hz(fc=1000 MHz)

< -110 dBc/Hz(fc=2000 MHz)

< -106 dBc/Hz(fc=3000 MHz)

< -104 dBc/Hz(fc=4000 MHz)

< 4 Hz

< 7 Hz

< 14 Hz

< 28 Hz

< 501 MHz

< 1001 MHz

< 2001 MHz

< 4000 MHz_

SSB Phase Noise1Residual FM (CCITT, rms)

In-channel receiver tests

For:• Pagers• Cordless phones• Low cost two-way radios• 900 MHz trunked radios

1 The table represents typical values at 20kHz offset

from the carrier frequency specified in brackets.

• In-channel receiver testing• Semi-automated testing• General purpose stimulus/local oscillator

…Without Compromising Performance

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Semi-automated testingIncrease manual test productivity insemi-automated tests, such as receiv-er tuning and alignment. AgilentTechnologies economy signal genera-tors are ideal for high-volume manu-facturing.

Easy to useDesigned to simplify operator useand training, the front panel is orga-nized in easy-to-identify functionalblocks, and offers independent fre-quency and amplitude control knobs.The 300 internal storage registersand ten user- definable sequenceseasily adapt to any test procedure.Once test setups are saved in storageregisters, operators can quicklysequence through them to efficientlymake pass/fail decisions or tune areceiver.

High reliabilityKeep production lines up and run-ning with the 8648 series economysignal generators. Designed toAgilent Technologies’ stringent quali-ty and reliability specifications, thesesignal generators are optimized forlong-term dependability.The 8648 signal generators are manu-factured in an ISO 9002 registeredfacility in concurrence with AgilentTechnologies’ commitment to quality.

Use the latest in attenuator technolo-gy to keep up with the increasingdemands of output-level cycling. The1 GHz signal generators, the 8648A,maximize reliability with a patentedall-electronic attenuator. With nomoving parts to wear-out, the elec-tronic attenuator easily handles mil-lions of amplitude cycles with highlyrepeatable performance.

Low cost of ownershipLow price, high reliability and a two-year calibration cycle keep cost ofownership to a minimum.

Quickly make sensitivity measurementswith the twist of a knob. Two independentfrequency- and amplitude-control knobsprovide instant access.

Digitally squelched receivers

Extremely stable dc coupled FM precisely reproduces digital signalingcodes for pagers and other FM receiverswith selective squelch

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Remote interfaceMaximize operator efficiency withthe 83300A remote interface. Thismouse-like keypad provides quickaccess to the sequences and storageregisters in the signal generator, aswell as RF amplitude on/off, andmodulation on/off. When the 83300Ais connected to the rear panel,remote control is at your fingertips.The operator no longer needs toaccess the front panel of the source.Operator training costs and requiredskill level is significantly reduced,while measurement consistency isassured across the production line.

General purpose stimulus/localoscillator

The economy line of RF signal gener-ators are ideal for RF receiver andcomponent measurements. Wide fre-quency coverage, solid performance,multiple modulation formats, uncom-promised quality and reliability allowyou to meet testing requirementswhile maintaining a budget.

CompatibilityGPIB programmability is standard forautomated test applications. TheSCPI programming standard is pro-vided to protect software invest-ments. In addition, the 8648 seriesreduces software development costsby providing full GPIB code compati-bility with the 8656B and 8657A/Bsignal generators.

The small size and lightweight are idealfor field test applications.

Memory interfaceUse the 83301A memory interface tosimplify storage register maintenancewhen using multiple 8648 signal gen-erators. The memory interface copiesthe register information from oneinstrument to another.

Compact and lightweightSave valuable bench space with thecompact design of the economy sig-nal generators. Measuring 13 incheswide and less than 15 inches deep the8648 require only minimal test space.In addition, they are lightweight æless than 18 lb. (9 kg) - ideal for ser-vice applications.

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FREQUENCYRangeResolutionSwitching Speed (typical)< 1001 MHz≥ 1001 MHzAging RateSPECTRAL PURITYHarmonicsSubharmonics< 1001 MHz≤ 3200 MHz≤ 4000 MHzNonharmonics< 249 MHz< 1001 MHz< 2001 MHz≤ 4000 MHzResidual FM (CCITT, rms) 1

< 249 MHz< 501 MHz< 1001 MHz< 2001 MHz≤ 4000 MHzOUTPUTRange

ResolutionAccuracy2

SWR3 (typical)Reverse Power ProtectionElectronic AttenuatorFREQUENCY MODULATIONDeviation RangeRate (external, typical)DistortionPHASE MODULATIONDeviation RangeRate (external, typical)DistortionAMPLITUDE MODULATION4

RangeRate (external, typical)Distortion

8648A

100 kHz to 1000 MHz0.001 Hz

< 75 ms---

< ± 2 ppm/year

< -30 dBc

-60 dBc------

< -55 dBc< -60 dBc

------

< 7 Hz< 4 Hz< 7 Hz

------

+ 10 to - 136 dBm

0.1 dB± 1.0 dB< 1.5:150 WYes

0 to 100 kHzdc to 150 kHz

< 1%

0 to 10 radians20 Hz to 10 kHz

0 to 100%1 Hz to 25 kHz

< 3%

8648B

9 kHz to 2000 MHz0.001 Hz

< 75 ms< 100 ms

< ± 2 ppm/year

< -30 dBc

-60 dBc------

< -55 dBc< -60 dBc< -54 dBc

---

< 7 Hz< 4 Hz< 7 Hz

< 14 Hz---

+13 to -136 dBm

0.1 dB± 1.0 dB< 1.5:150 W

No


< 1%


0 to 100%1 Hz to 25 kHz

< 3%

8648C


< 75 ms< 100 ms

< ± 2 ppm/year

< -30 dBc

-60 dBc-50 dBc

---

< -55 dBc< -60 dBc< -54 dBc

---

< 7 Hz< 4 Hz< 7 Hz

< 14 Hz---

≤2500 MHz : +13 to -136 dBm≤4000 MHz : +10 to -136 dBm

0.1 dB± 1.0 dB< 1.5:1

50 W (≤2000 MHz)No


< 1%


0 to 100%1 Hz to 25 kHz

< 3%

8648D


< 75 ms< 100 ms

< ± 2 ppm/year

< -30 dBc

-60 dBc-50 dBc-40 dBc

< -55 dBc< -60 dBc< -54 dBc< -48 dBc

< 7 Hz< 4 Hz< 7 Hz

< 14 Hz< 28 Hz

≤2500 MHz : +13 to -136 dBm≤4000 MHz : +10 to -136 dBm

0.1 dB± 1.0 dB< 1.5:1

25 W (≤4000 MHz)No


< 1%


0 to 100%1 Hz to 25 kHz

< 3%

1Residual FM is specified over 0.3 to 3 kHz BW, and with a CCITT filter 2Accuracy applies for frequency less than 1001 MHz.38648 SWR is <2.5:1 for frequencies <249 kHz and <2.0:1 for frequencies >2.5 GHz.4AM performance is not specified below 1.5 MHz and is typical above 1001 MHz.

RF Signal Generator Performance Summary(Please refer to data sheet, literature number 5965-3432E, for full specifications)

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By internet, phone, or fax, get assistance withall your test & measurement needs

Online assistance:www.agilent.com/find/assist

Phone or FaxUnited States:(tel) 1 800 452 4844

Canada:(tel) 1 877 894 4414(fax) (905) 282 6495

China:(tel) 800 810 0189(fax) 1 0800 650 0121

Europe:(tel) (31 20) 547 2323(fax) (31 20) 547 2390

Japan:(tel) (81) 426 56 7832(fax) (81) 426 56 7840

Korea:(tel) (82 2) 2004 5004 (fax) (82 2) 2004 5115

Latin America:(tel) (305) 269 7500(fax) (305) 269 7599

Taiwan:(tel) 080 004 7866 (fax) (886 2) 2545 6723

Other Asia Pacific Countries:(tel) (65) 375 8100 (fax) (65) 836 0252Email: [email protected]

Product specifications and descriptions in thisdocument subject to change without notice.

Copyright � 2000 Agilent TechnologiesPrinted in USA December 12, 2001 5962-6191E

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