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Printed in USA March 2000

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  • Page 1

    ® Advanced Test Equipment Rentals www.atecorp.com 800-404-ATEC (2832) Notice Hewlett-Packard to Agilent Technologies Transition This documentation supports a product that previously shipped under the Hewlett- Packard company brand name. The brand name has now been changed to Agilent Technologies. The two products are functionally identical, only our name has changed. The document still includes references to Hewlett-Packard products, some of which have been transitioned to Agilent Technologies.

  • Page 2

    Contacting Agilent By internet, phone, or fax, get assistance with all your test and measurement needs. Table 1-1 Contacting Agilent Online assistance: www.agilent.com/find/assist United States Latin America Canada Europe (tel) 1 800 452 4844 (tel) (305) 269 7500 (tel) 1 877 894 4414 (tel) (+31) 20 547 2323 (fax) (305) 269 7599 (fax) (905) 282-6495...

  • Page 3

    Operation and Service Manual HP 8447D/E/F and HP 8447F H64 Amplifiers Serial Numbers: HP 8447D, 2944A HP 8447E, 2944A HP 8447F, 2944A HP 8447F H64, 3113A HP Part No. 08447-90066 Supersedes 08447-90033, 08447-90063, 08447-90059 Printed in USA Print Date: July 1996 Copyright Hewlett-Packard Company 1970-1996.

  • Page 4

    Legal Legal The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, in- cluding but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

  • Page 5

    Operation and Service Manual DRAFT...

  • Page 6: General Information

    The HP 8447F Amplifier contains a preamplifier and a power amplifier. They are the same thin film amplifiers used in the HP 8447D and HP 8447E. The input and output ports of both amplifiers are available on the front panel. They can be used separately or cascaded to provide 47 dB of gain.

  • Page 7

    Operation and Service Manual General Information Table 1 HP 8447D and HP 8447E Specifications HP 8447D HP 8447E Specifications Preamp Power Amp − − Harmonic distortion 30 dB for 0 dBm output (typi- 30 dB for 8 dBm output cal) −...

  • Page 8

    Operation and Service Manual General Information Table 2 HP 8447F Specifications HP 8447F HP 8447F H64 Specifications Preamp Power Amp Preamp Low Freq. Preamp Frequency range 0.1 to 1300 MHz 0.1 to 1300 MHz 0.1 to 1300 MHz 9 kHz to 50 MHz Typical 3 dB bandwidth .075 to 1700 MHz...

  • Page 9

    C to Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.15 ns. b. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.25 ns. Table 3 HP 8447F H64 Characteristics HP 8447F H64 Characteristics Preamp Low Freq.

  • Page 10

    Operation and Service Manual General Information Figure 1 Typical Preamplifier Performance Curves DRAFT...

  • Page 11

    Operation and Service Manual General Information Figure 2 Typical Power Amplifier Performance Curves DRAFT...

  • Page 12

    The option H64 dual amplifier is not supplied with this cable. Instruments Covered by this Manual This manual fully documents the HP 8447D, HP 8447E and the HP 8447F. Any references in the manual apply to all three amplifiers unless otherwise noted.

  • Page 13

    Operation and Service Manual General Information DRAFT...

  • Page 14

    Operation and Service Manual Receiving and Operating Receiving and Operating Initial Inspection Mechanical Check If damage to the shipping carton is evident, ask the carrier’s agent to be present when the instrument is unpacked. Inspect the instrument for mechanical damage. Also check the cushioning material for signs of severe stress.

  • Page 15

    Operation and Service Manual Receiving and Operating offset pin on the power cable’s three-prong connector is the ground wire. The power cord and power input connector meet the specifications established by the International Electrotechnical Commission (IEC). CAUTION: Always use the three-prong ac power cord supplied with this instrument. Failure to ensure adequate earth grounding by not using this cord may cause instrument damage.

  • Page 16

    Connect the line power cable to line power and press the LINE switch. CAUTION: The input to the HP 8447D/E/F and the HP 8447F Option H64 amplifiers is very susceptible to damage from electrostatic discharge. Before connecting any coaxial cable to the input jack of the amplifier, make certain that static electricity buildup in the cable is completely discharged.

  • Page 17

    Receiving and Operating Attach INPUT and OUTPUT cables. CAUTION Power out of the HP 8447E and power out of the HP 8447F power amp can exceed 100 mW. This may be enough power to damage sensitive circuits connected to the OUTPUT.

  • Page 18

    Disregard references to any amplifier not being tested. Table 4 Recommended Test Equipment and Accessories Instrument Type Minimum Specifications Suggested Model Generator/Sweeper Frequency Range: 0.1 to 110 MHz HP 8601A ± Flatness: 0.25 dB over full range Output Level: 10 dBm minimum ± Frequency Accuracy: 1%...

  • Page 19

    Frequency range: 10 Hz to 10 MHz Meter accuracy: ±5% − Power meter HP 432A/478A Rower range: 20 dBm to 10 dBm Frequency range: 10-1300 MHz ± Meter accuracy: Amplifier Gain: 24 dB HP 8447D Noise: <8 dB Frequency range: 0.1-130 MHz DRAFT...

  • Page 20

    Performance Tests Procedures Table 4 Recommended Test Equipment and Accessories Instrument Type Minimum Specifications Suggested Model Digital voltmeter Voltage range: 0-60V HP 3440A/3444A A, T Accuracy: ±0.05% ±1 digit Double balanced Frequency range: 200-1300 MHz Sage Laboratories mixers 2500 Series Low pass filter...

  • Page 21

    Sweep oscillator ........HP 8620A/8621A...

  • Page 22

    Operation and Service Manual Performance Tests Procedures Figure 3 Gain Test Setup: 10 MHz to 1.3 GHz Procedure: 1 To measure gain flatness and mean gain, connect the equipment as shown in Figure 3. Set the sweep oscillator for a 1.3 GHz, leveled, CW signal. Set the signal level for −10 dBm out of the 10 dB attenuator (read on the power meter).

  • Page 23

    Operation and Service Manual Performance Tests Procedures nect the power meter to the amplifier OUTPUT. Calculate and record the amplifier gain as in step 2. Gain at 1150 MHz________________________dB 5 Measure, calculate and record the amplifier gain at the following frequencies. Use the procedures outlined in steps 3 and 4.

  • Page 24

    For HP 8447F H64 low frequency preamp, replace the generator/sweeper shown in Figure 4 with HP 3335A synthesizer (or equivalent). Set the synthesizer for a 9 kHz, CW signal. Repeat step 7. Measure, calculate and record the amplifier gain at 9 kHz.

  • Page 25

    6 dBm: quency preamp 14 Repeat steps 11 through 13 at various frequencies between 0.1 and 1300 MHz. For the HP 8447F H64 low frequency preamp repeat steps 11 through 13 at various frequencies between 0.1 to 50 MHz. DRAFT...

  • Page 26

    Equipment: Sweep oscillator........HP 8620A/8621A Generator/sweeper .

  • Page 27

    HP 8447F Option H64 Low frequency preamp, 1 to 50 MHz >9.6 dB:__________ 5 Measure return loss at the amplifier OUTPUT. Terminate the INPUT with 50Ω. The measured return loss should be as shown below. For the HP 8447F option H64 low frequency preamp, steps 7 through 11 are not needed. DRAFT...

  • Page 28

    Operation and Service Manual Performance Tests Procedures HP 8447D Output VSWR, 1 to 110 MHz: >8.8 dB _____________ HP 8447E/F Output VSWR, 1 to 110 MHz: >7.7 dB _____________ HP 8447F Option H64 low frequency preamp >9.6 dB _____________ Output VSWR, 1 to 50 MHz: Figure 6 VSWR Test Setup: 0.11 to 1.3 GHz...

  • Page 29

    HP 8447F Power amp, >8.8 dB:__________ 10 Repeat steps 8 and 9, measuring return loss at the amplifier OUTPUT. Terminate the amplifier INPUT with 50Ω. The measured return loss should be as shown below: HP 8447D Output VSWR, 110 to 220 MHz: 8.8 dB _____________ HP 8447E/F Output VSWR, 110 to 220 MHz: 7.7 dB...

  • Page 30

    Spectrum analyzer ......HP 141T/8552A/8555A Sweep oscillator........HP 8620A/8621A 400 MHz low pass filter .

  • Page 31

    1 To check distortion, connect the equipment as shown in Figure 7. Set the sweep oscil- lator for a fixed, 400 MHz CW signal. For the HP 8447F option H64 low frequency preamp, set the frequency to 10 MHz. 2 Set the spectrum analyzer input attenuator as shown below. Adjust the controls to dis- play 400 through 1200 MHz.

  • Page 32

    UHF noise source ......... HP 349A Sweep oscillator........HP 8620A/8621A Double balanced mixers .

  • Page 33

    Cable assembly (5)........

  • Page 34

    100 MHz (or 105 MHz). It should be less than 8.5 dB. For the HP 8447F option H64 low frequency preamp, check the amplifier’s noise fig- ure at 30 MHz. It should be less than 7 dB.

  • Page 35

    Equipment: Digital voltmeter ........HP 3440A/3444A RMS voltmeter .

  • Page 36

    The following tables list parts in alpha-numerical order of their reference designa- tions. It is important that you refer to the table that documents the instrument being serviced. Cabinet parts for all three amplifiers are listed in Figure 11. HP 8447D/E/F Cabinet Parts. Figure 12. HP 8447D/E/F Type-N Connector (Options 010 and 011) lists the parts that make up the Type-N connector used in amplifier...

  • Page 37

    Operation and Service Manual Parts and Service Table 6 Abbreviations = amperes = counterclockwise DEPC = deposited carbon = automatic frequency = ceramic = drive control = cabinet mount only AMPL = amplifier COEF = coefficient ELECT = electrolytic = common ENCAP = encapsulated = beat freq oscillator...

  • Page 38

    Operation and Service Manual Parts and Service Table 6 Abbreviations = slow-blow = tantalum = with = screw = time delay = watts = selenium = toggle = working inverse SECT = section(s) = thread voltage SEMICN = semiconductor = titanium = wirewound = silicon = tolerance...

  • Page 39

    Operation and Service Manual Parts and Service Table 8 HP 8447D Replaceable Parts HP Part Mfr Part Description Number Code Number 08447-60045 Board Assy: Power Supply 28480 08447-60045 A1C1 0150-0024 C: fixd cer 0.02 uF +80-20% 600 Vdcw 71590 Type DD 203...

  • Page 40

    R: fixd comp 27 kohm 5% 1/4W 01121 CB 2735 3101-2139 Switch-pb DPST-NO altng 10.5A 250Vac 28480 3101-2139 3101-2195 for HP 8447D, serial no. 2727A06246 28480 3101-2195 for HP 8447E, serial no. 2727A02669 for HP 8447F, serial no. 2805A03498 0590-0012 Nut: knurled 15/32-32 04009...

  • Page 41

    Operation and Service Manual Parts and Service Table 8 HP 8447D Replaceable Parts HP Part Mfr Part Description Number Code Number 08447-20006 Cable assy: BNC INPUT 28480 08447-20006 08447-20003 Cable assy: Type-N OUTPUT 28480 08447-20003 (Opt 010 and 011 only)

  • Page 42

    Operation and Service Manual Parts and Service Table 9 HP 8447E Replaceable Parts HP Part Mfr Part Description Number Code Number 08447-60045 Board Assy: Power Supply 28480 08447-60045 A1C1 0150-0024 C: fixd cer 0.02 uF +80-20% 600 Vdcw 71590 Type DD 203...

  • Page 43

    R: fixd comp 27 kohm 5% 1/4W 01121 CB 2735 3101-2139 Switch-pb DPST-NO altng 10.5A 250Vac 28480 3101-2139 3101-2195 for HP 8447D, serial no. 2727A06246 28480 3101-2195 for HP 8447E, serial no. 2727A02669 for HP 8447F, serial no. 2805A03498 0590-0012 Nut: knurled 15/32-32 04009...

  • Page 44

    Operation and Service Manual Parts and Service Table 9 HP 8447E Replaceable Parts HP Part Mfr Part Description Number Code Number Fuseholder (includes the following parts) XF1MP1 2110-0564 Fuseholder body 12A max for UL 28480 2110-0564 XF1MP2 2110-0565 Fuseholder cap 12A max for UL...

  • Page 45

    Operation and Service Manual Parts and Service Table 10 HP 8447F Replaceable Parts HP Part Mfr Part Description Number Code Number 08447-60045 Board Assy: Power Supply 28480 08447-60045 A1C1 0150-0024 C: fixd cer 0.02 uF +80-20% 600 Vdcw 71590 Type DD 203...

  • Page 46

    R: fixd comp 27 kohm 5% 1/4W 01121 CB 2735 3101-2139 Switch-pb DPST-NO altng 10.5A 250Vac 28480 3101-2139 3101-2195 for HP 8447D, serial no. 2727A06246 28480 3101-2195 for HP 8447E, serial no. 2727A02669 for HP 8447F, serial no. 2805A03498 0590-0012 Nut: knurled 15/32-32 04009...

  • Page 47

    Operation and Service Manual Parts and Service Table 10 HP 8447F Replaceable Parts HP Part Mfr Part Description Number Code Number 08447-60044 5086-7767 replacement kit (for use with 28480 08447-60044 08447-60045 assy). 8120-1348 Cable assy: power, detachable 70903 KHS-7041 08447-20002...

  • Page 48

    Operation and Service Manual Parts and Service Table 11 HP 8447F H64 Replaceable Parts HP Part Mfr Part Description Number Code Number 08447-60045 Board Assy: Power Supply 28480 08447-60045 A1C1 0150-0024 C: fixd cer 0.02 uF +80-20% 600 Vdcw 71590...

  • Page 49

    Operation and Service Manual Parts and Service Table 11 HP 8447F H64 Replaceable Parts HP Part Mfr Part Description Number Code Number A1R12 0698-3442 R: fixd met flm 237 ohm 1% 1/8W 28480 0698-3442 A1R13 0757-0180 R: fixd met flm 31.6 ohm 1% 1/8W...

  • Page 50

    Operation and Service Manual Parts and Service Table 11 HP 8447F H64 Replaceable Parts HP Part Mfr Part Description Number Code Number 9100-1618 Coil: molded choke 5.60 uH 28480 9100-1618 9100-1618 Coil: molded choke 5.60 uH 28480 9100-1618 (Opt 001 and 011 only)

  • Page 51

    Operation and Service Manual Parts and Service Figure 11 HP 8447D/E/F Cabinet Parts Index Part Number Description Number 08447-0029 Deck, main 5000-7891 Side cover, blue gray 5000-8766 Side cover, olive gray 5060-0247 Frame assembly 1490-0031 Stand, tilt 5060-0708 Top cover, blue gray...

  • Page 52

    Panel, front (8447F Opt 010) 08447-00081 Panel, front (8447F Opt H64) 08447-00040 Panel, front (8447D standard) mint gray 08447-00041 Panel, front (8447D Opt 001) mint gray 08447-00042 Panel, front (8447D Opt 010) mint gray 08447-00043 Panel, front (8447D Opt 011) mint gray 08447-00044...

  • Page 53

    Operation and Service Manual Parts and Service Figure 12 HP 8447D/E/F Type-N Connector (Options 010 and 011) Index Index Part No. Description Part No. Description 1250-0914 Body, RF conn 5040-0306 Insulator 1250-0915 Contact, RF conn 08555-20094 Contact, jack 2190-0444 Washer, lock...

  • Page 54

    Operation and Service Manual Parts and Service Figure 13 Internal Views DRAFT...

  • Page 55

    Equipment: Digital voltmeter ........HP 3440A/3444A Cable assembly (w/test clips).

  • Page 56

    Operation and Service Manual Parts and Service Figure 14 A1 Power Supply Component Locations, 08447-60011 Figure 15 A1 Power Supply Component Locations, 08447-60045 DRAFT...

  • Page 57

    Operation and Service Manual Parts and Service Figure 16 A2 Amplifier Board Component Locations, 08447-60038 Figure 17 A2 Amplifier Board Schematic (replaces U2 on Figure 18) DRAFT...

  • Page 58

    Operation and Service Manual Parts and Service Figure 18 Amplifier and Power Supply Circuits DRAFT...

  • Page 59

    Operation and Service Manual Manual Backdating Changes Manual Backdating Changes This manual does not contain backdating information. When backdating information is required you would adapt this manual to your instrument by making all of the manual changes listed opposite your instrument serial number in the following table.

This manual also for:

8447e, 8447f, 8447f h64

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