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Содержание FG3B

Страница 1: ...PERATOR S MANUAL Model FG3B Sweep Function Generator WAVEIEK...

Страница 2: ...e manual For warranty repair outside the United States contact your local Wavetek Corporation dealer or distributor whare your sweeplfunction generator was purchased or return to Wavetek Corporation s...

Страница 3: ...Mode1FG3B S w eep Function Generator Operator s Manual...

Страница 4: ......

Страница 5: ...t 13 5 4 VCF Operation 14 5 5 External Counter Operation 15 5 6 Auto Sweep Operation 15 5 7 AM FM Modulation Operation 16 5 8 APPLICATION NOTE Amplifier Response Testing 17 VI Specifications 21 VIl Ci...

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Страница 7: ...a display of responses automatically The counter makes it easy to set the frequency control knob to the precise value desired In addition the counter may be switched to measure and display extema sign...

Страница 8: ...2...

Страница 9: ...the packing be retained for protection should future transport of the instrument be required The carton should contain the following items 1 Model FG3B Sweep Function Generator 2 A plastic bag contai...

Страница 10: ...4...

Страница 11: ...he case opened Do not operate the instrument ungrounded with the ground pin of the power cord removed or with a 3 pin adapter Never permit water to enter the interior of the instrument WARNING Do not...

Страница 12: ...6...

Страница 13: ...R Indicator lights to show over range condition or when a signal applied to the Externat Counter input exceeds the counter s measurement range 3 COUNTER DISPLAY 5 digit LED display shows frequency val...

Страница 14: ...Figure 4 1 8...

Страница 15: ...DC offset voltage to the signal on Output connector 22 Pull to adjust offset 11 FUNCTION Selector Selects square triangle or sine wave output at connector 22 TTL CMOS output connector 20 not affected...

Страница 16: ...D IN connector 21 18 COUNTER INPUT Selects internai waveform function generator output or external signal on Extemal Counter connector 19 for measurement and display 19 EXTCOUNTER Accepts external sig...

Страница 17: ...to your AC outlet C Push the PWR switch The GA1E indicator will flash and the Counter Display will read the frequency of the signal D Preset the controls Ail controls pushed in Ail non power buttons r...

Страница 18: ...r The signal duty cycle may be varied by rotating the DUTY knob Pull it to invert the duty cycle F There is a simultaneous output at the TTL CMOS connector This output will drive 1ogic circuitry TIL o...

Страница 19: ...he AMPL knob for the desired amplitude at the OUTPUT jack NOTE For low level applications pull the AMPL knob for 20 dB 10 to 1 reduction attenuation of the output signal E If required pull and adjust...

Страница 20: ...the XlOk frequency multiplier button is pressed the range is 20Hz to 20kHz The VCF input modifies the initial frequency setting within the original 3 decade control range With a frequency setting of 2...

Страница 21: ...dow but the OVER indicator is not lit For unknown signais push the 1 sec button first NOTE For better accuracy wail 60 seconds for a stable reading when the 10 sec button is pressed 5 6 Auto Sweep Ope...

Страница 22: ...P WIDTH control so that the instrument sweeps through the desired frequencies NOTE The sweep cannot be stopped SWEEP WIDTH must be adjusted during the sweep J Then adjust the SWEEP TIME control for th...

Страница 23: ...CARRIER knob for the desired modulation leve 5 8 Application Note Amplifier Response Testing A typical use for the Mode FG3B Sweep Function Generator is evaluating the performance of audio power arnp...

Страница 24: ...power output This method is safe for the amplifier and gives optimum results Or if desired future sweep testing may be done at one fourth rated power or full power Use caution when testing at full pow...

Страница 25: ...SWEEP FUNCTION GENERATOR AMPLIFIER Figure 5 2 D C JO 0 0 o ll 0 19...

Страница 26: ...20...

Страница 27: ...0Q load TTL CMOS connector TIL 3V open circuit CMOS 4 to 14 5V adjustable 50Q 6 OUTPUTconnector only 20dB ldB at 1kHz OUTPUT connector only lOV to 1OV for no load 5V to 5V for 50Q Joad OUTPUT connecto...

Страница 28: ...z to 2MHz 6 3 Triangle Wave Output Linearity 98 0 2Hz to 100kHz 95 100kHz to 2MHz 6 4 Square Wave Output Symmetry 2 0 2Hz to 100kHz Rise Fall Time 120ns 6 5 CMOS Output Level 4V P P 1V P P to 14 5V P...

Страница 29: ...z Accuracy Timebase Resolution Input Sensitivity Extemal Display 6 9 Sweep 5MHZ to 100MHz back panel switch selected 10 PPM 1 count at 23 C Oscillator frequency lOMHz Stability 10 PPM at 23 C Internai...

Страница 30: ...xternat 100Hz to 2MHz 3dB lOV P P for 100 modulation 6 11 Frequency Modul ltion Deviation Modulation Freq Ext Sensitivity 6 12 General Power Source Dimensions Weight 0 to 5 400Hz internai OC 20kHz ext...

Страница 31: ...16 J201B 4 99KF 1 FREQ VA R217 7 15KF R21B 751 F A219 750KF 52018 GFG 684 1 AOJUSTEO IN FACTOAY 2 C RCUITRY ARE SUBJECT TO CHANGE WITHOUT NOTICE FOR FURTHER IMPROVEMENT 3 RESISTANCE VALUESIN 0 1 4WATI...

Страница 32: ...0316 0319 6F6685 13018 TTL CKT 1 1 15 5V SF 684 1 1 AOJUSTEO IN FACTOOY 2 CIACUITAY ARE SUBJECT TO CHANGE WTHOUT NOTICE FOR FUATHEA IMPROVEMENT 3 AfSISTANCE VALUES IN D 1 4 WATT AND CAPACITANCE IN af...

Страница 33: ...OUZ sov 9V l a 80601 J OV T 2 ll 7 v_ _ 0 T L 1 ADJUSTED IN FACTOAY 2 CIACOORY ARE SUBJECT TO CHANGE WT T NOTICE FOR FUATHER IMPAOVEMENT 3 RESISTANCE VN UES C 1 4 WATI ANOC IPN ITNIGEIN OTliERWISE SPE...

Страница 34: ...SF 684 12021 GF 684 eou TO GF66115 11325 2IW TD COUITER SELECTOR u 1 mil 1 1 A326 470JI I 1 ADJUSTED IN FACTOAY 2 CIACUITAY ARE SUBJECT TO CHANGE WTiiOUT NOTICE FOR FUATHEA IMPAOVEMENT 3 RESISTANCE V...

Страница 35: ...V t5 5V 1 AOJUSTEO IN FACTORY 2 CIACUITAY ARE SUBJECT TO CHNIGE MTHOUT NOTICE FOR FUFITHER IMPAOYEMENT 3 RESISTANCE V ALUES IN Q 1 t WATI AND CAPACITANCE IN UNLESS OTHERWISE SPECIFIEO Sweep Modulation...

Страница 36: ...r TO J606 dJ lb GF6684 10 GFS685 J608A o o J607 COLO TER SELECTOR 1 GFG 684 JSOSA ffl F ro 1 ADJUSTED IN FACTORY ccunER cOI HTER SELECTOR SELECTOR J604B J60o48 2 CIRCUITAV ARE SUBJECT TO CHANCE MTHOU...

Страница 37: ...ower cord is good 3 Check the internai fuse Refer to Section 8 2 for details B Counter does not read function generator frequency 1 Make certain the CNTR INP button is released 2 On the 1Hz range it w...

Страница 38: ...om the AC outlet and that the power cord is good B Disconnect the power cord from the rear panel connector DANGER Never attempt to open the instrument or change the fuse when AC power is present 32 C...

Страница 39: ...ase exposing the circuitry C The Iine voltage selection is located between the power transformer and the side of the case If the unit is originally set for 117VAC there are two jumpers soldered into t...

Страница 40: ...bel over the rear panel label so that it covers the previous AC line voltage requirement Write the new voltage on the label H Replace the AC power cord or change the plug on the present one so that it...

Страница 41: ...of of purchase for warranty repairs and any test leads used with the meter In addition mak e sure to include a written description of the problem encountered or service required For minimum turn aroun...

Страница 42: ...th the items listed above and shipping charges prepaid to 36 For U S A Wavetek Corp 9045 Balboa Ave San Diego CA 92123 Tel 619 279 2200 ext 670 Fax 619 495 3296 For U K Wavetek Ltd Hurricane Way Norwi...

Страница 43: ......

Страница 44: ...Wavetek Corporation Instruments Division 9045 Balboa Ave San Diego CA 92123 European Distribution and Service Center Wavetek Ltd Hurricane Way Norwich NR6 6 B England...

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