Racal Instruments 9057 Technical Manual Download Page 1

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9057 & 9059

Frequency Period Meter

Technical Manual

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G0RSQ

May 2018

Summary of Contents for 9057

Page 1: ...9057 9059 Frequency Period Meter Technical Manual Courtesy of Racal_Dana user group Click to join Racal_Dana Please enjoy responsibly G0RSQ 23rd May 2018...

Page 2: ...9057 9059 Frequency Period Meters Racal Instruments Limited Duke Street Windsor Berks Prepared by Technical Publications Racal Group Services Limited G 0 R S Q...

Page 3: ...7 j G 0 R S Q...

Page 4: ...ral Information Frequency Measurement Period Measurement Overspill PRINCIPLES OF OPERATION General Frequency i iteasurement Self Check Period Measurement TECHNICAL DESCRIPTION Introduction Attenuator...

Page 5: ...sts Setting Up Internal Frequency Standard External Frequency Standard Input Attenuator Checks Sensitivity Check Setting Up Schmitt Trigger Amplifier and Pre scaler Assembly 19 0604 Miscellaneous Serv...

Page 6: ...mbly Parts List Circuit and Layout Input Attenuator Parts List Layout Amplifier and High Speed Decade Circuit Amplifier and High Speed Decade Parts List Layout Readout Assembly Circuit Readout Assembl...

Page 7: ...SECTION 1 TECHNICAL SPECIFICATION G 0 R S Q...

Page 8: ...ensitivity Better than lOmY Impedance 1MOin parallel with 25 pF a c coupled Signal Conditions 9057 and 9059 Channel 1 A Sensitivity Switch Setting Signal Range volts r m s Maximum input before damage...

Page 9: ...eck 1 5 TIME BASE Frequency Standard Warm up Time 9057 9059 Refer to 1 1 1 count timebase accuracy 10ms1 lOOms ls and lOs Internal 100kHz signal Does not operate on Channel B of the 9059 NOTE On the 9...

Page 10: ...s displayed during period required to complete new measurement Display is automatically up dated at the end of each measurement Operation of the Reset push button resets the display to zero and the in...

Page 11: ...mplete re charge Rate cannot damage cells if inadvertently left on Trickfe A trickle charge is automatically applied in the OPERATE mode if the mains input is left connected and the instrument switche...

Page 12: ...S high impact material The Counter has a protective shower resistant lid Height Overall 108mm 4 11 Width Overall 229mm 911 11 Depth Overall including pack 298mm 111 6 11 Including Battery Pack approxi...

Page 13: ...SECTION 2 DESCRIPTION OPERATION MAINTENANCE G 0 R S Q...

Page 14: ...nds the frequency range to 560MHz The 10mV sensitivity is maintained up to 500MHz decreasing to 50mV at 560MHz The switched attenuator permits a maximum input level of 4V r m s on Channel B Display 1...

Page 15: ...eries to be re charged from an a c supply via the 3 pin plug on the rear panel according to the position of the CHARGE OPERATE switch This switch must be set to OPERATE to use the instrument and in th...

Page 16: ...ains pock to the counter1 taking core to mote the 8 woy plug and socket correctly1 and tighten the two finger screws 4 Connect the mains supply 5 Switch on the instrument using the OFF PERIOD FREQUENC...

Page 17: ...ility which is selected by the OPERATE SELF CHECK slide switch In the SELF CHECK position the switch feeds the 100kHz reference signal from the frequency standard to the input amplifier This permits p...

Page 18: ...e measurement is to be made and check that the following displays are obtained TABLE 2 Self Check Period Displays Number of Periods Units Display 1 Sec 0 00001 10 ms 000 010 100 ms 00 0100 1000 ms 0 0...

Page 19: ...Periods 1 10 100 1000 A two position slide switch In the lower position CHECK the 100kHz check signal is applied as the input signal In the upper position OPERATE the instrument operates normally for...

Page 20: ...EXTERNAL On the Model 9059 a 1M Hz reference frequency output derived from the internal frequency standard is available at this socket when the FREQUENCY STANDARD switch is set to INTERNAL Model 9059...

Page 21: ...ximum attenuation which allows the display to operate 4 Select using the bank of push buttons on the front panel the gate time which allows the redding to fill all six windows of the display without o...

Page 22: ...re applied to the input socket of model 9057 or input socket A on model 9059 Signals in the frequency range 40MHz 560MHz are applied to input socket B in model 9059 Signals in the range 1OHz 80MHz are...

Page 23: ...t that the 1OOkHz signal derived from the Frequency Standard takes the place of the input signal This self check arrangement does not apply to Channel s of the 9059 PERIOD MEASUREMENT 4 9 The input is...

Page 24: ...RESET GENERATOR TRANSFER DRIVE 710 IC11 1 Ve RESET DP DATA e I I I I I PUSH BUTTON RANGE SWITCHES FREQUENCY PERIOD I 1 1 Ve RESET FUNCTION 0 0 0 0 LEVER 1 c 9059 O N L Y l 1 1 40MHz AMPLIFIER 1 TO l 1...

Page 25: ...lifier and Pre scaling Assembly or 20dB attenuation may be switched in using conventional means AMPLIFIER AND PRE SCALER ASSEMBLY 19 0604 Fig 4 3 lv odel 9059 only 5 3 The input signal in the frequenc...

Page 26: ...ins 1 and 2 of IC2a are at logic 0 pin 12 of IC2d is at logic 0 5 11 logic 0 at pin 12 of IC2d closes IC2d gate f hus inhibiting the 1MHz output from the external frequency standard The logic 0 state...

Page 27: ...Decade Assembly via pin 15 of the p c b to open IC1a gate IC2b gate is open due to logic 1 on pin 9 from IC2a and logic 1 on pin 12 no current flow through R45 and the 100kHz from the Frequency Stand...

Page 28: ...e the output of each stage is set to logic 1 11 The leading edge of the first pulse derived from the frequency standard or the input signal sets the output of IC7c to logic 1 11 This means at this in...

Page 29: ...FIER AND PRE SCALER 6 3 sv 8 TO HIGH SPEED DECADE FROM FREQUENCY 1 0 t M STANDARD IC3 CONTROL FROM FUNCTION SWITCH l f 4 1 1 FREQUENCY 0 PERIOD FROM ATTENUATOR ASSEMBLY 11 s TO AMPLIFIER HIGH SPEED DE...

Page 30: ...des adjustment of the Schmitt trigger input bias to the base of Q14 5 35 Q14 and Q15 shape the waveform into square pulses with fast rise time edges which are coupled via the emitter follower Q16 to t...

Page 31: ...4 8 5 46 Before a measurement can take place the display the time base divider chain and control logic must be reset to their appropriate standby states This is carried out by the positive and negati...

Page 32: ...vider chain and the display assembly 5 54 The Q output of logic o to pin 3 of the p c b is taken to the J and K inputs of IC3a on the Amplifier and High Speed Decade Assembly to ensure a main gate per...

Page 33: ...C12b causes pin 8 of IC12b to go to logic 1 Pins 4 and 5 of IC7b are both now at logic 1 since the collector of Q10 is normally high thus pin 9 of 1C12b goes to logic 0 IC b and IC12b remain in this c...

Page 34: ...b Q output of Ic4 a Q output of ICS a D c B B J input J A of Ic4 b t Q output of Ic4 b A _________ ____________ Q output of IC5 b Q Fed to next Display Decad on Readout Assembly WOH 2105 Fig 2 3 Coun...

Page 35: ...the charging current which is approximately 350 rnA This corresponds to a mains supply current of approximately 40mA 5 73 With the rear panel toggle switch in the Operate position a trickle charge of...

Page 36: ...a c working requires modification to the internal wiring as follows 9057 9059 230V a c Operation Primary Connection A B C D Component mains fuse tag to Pin 7 of p c b to neutral mains socket 115V a c...

Page 37: ...ead Coaxial Lead Extension leads with 8 way connectors I BNC T Piece and 50n Terminating Pad USE OF TEST EQUIPMENT better than 40dB Range 1mV to 3V Frequency response 1 to 560 MHz Example Racal Airmec...

Page 38: ...Leads with 8 way connectors to connect the Power Pack to the Noin Chassis Assembly 3 Ensure the tv ains Pack input links are correct for the local supply voltage Chapter 5 para 77 refers 4 Connect the...

Page 39: ...display is extinguished PERFORMANCE TESTS NOTE If during the Performance Tests commencing at para 6 12 the required results are not obtainable it may be necessary to adjust the Schmitt trigger on the...

Page 40: ...erate Check switch to CHECK 3 Set the Internal External Switch to EXTERNAL 4 Apply the 1 MHz frequency standard to the 1 MHz External Frequency Standard input socket at a level of 80mV r m s 5 Press B...

Page 41: ...Set Channel B Slide Switch Attenuator to 0 01 5V 3 Set the Function Switch to Frequency B 4 Press the 10 ms MHz Range Switch Push Button 5 Check for correct display of the input frequency 6 Reduce th...

Page 42: ...th the 50 ohm load to the input socket of the 9057 or 9059 Channel A 5 Set the 9057 9059 Function Switch to FREQUENCY or FREQUENCY A 6 Set the signal generator frequency and the 9057 Push Button Range...

Page 43: ...Ql4 and Ql5 Amplifier and High Speed Decade 6 16 9057 9059 Equipment Required Signal Generator T Piece and 500 load Procedure 1 Connect the signal generator to the 9057 input socket 9059 Channel A an...

Page 44: ...socket 2 Connect the high impedance probe of the oscilloscope to the Amplifier and High Speed Decade input from the Amplifier and Pre Scaler Assembly Refer to Fig 4 15 the Amplifier and Pre Scaler ou...

Page 45: ...Push Button Range Switch Service View Chassis Upperside Internal Oscillator Ajustment Fig 2 4 G 0 R S Q...

Page 46: ...Amplifier afld Pr scat r Ass mbty Model 9059 only Fsr RLA Mains or Batt ry Pack Connector Service View Chassis Underside Schmitt Trigger Adjustment 1 Internal Oscillator Cofltrol Assembly G 0 R S Q...

Page 47: ...quested to include the following information a Instrument type and serial number b The type reference of the Assembly in which the particular item is located for example 19 0608 c The Racal Part numbe...

Page 48: ...0608 Control Assembly 19 0620 Attenuator Assembly 19 0662 Input Attenuator Interconnections and Chassis Parts List Fig No Parts List Layout Fig 4 9 Circuit Fig 4 10 Parts List Layout Fig 4 11 Circuit...

Page 49: ...ENUATOR BOARD ASSEMBLY 19 0620 Fitted in 9059 only Description Rat ToI Value Component References Resistors Carbon Film 1 10 10 120 Rl R2 Carbon Film 1 10 10 270 R3 Carbon Film 1 10 10 82 R4 Caeacitor...

Page 50: ...119 0620 11 tl D 1 0 J Cl R3 c J YR D 51 Circuit and Layout Attenuator Assembly 19 0620 Fig 4 1 G 0 R S Q...

Page 51: ...28 Carbon Film 1 10 5 2 2k Rll I R22 22 6039 Silicon Ql Q3 Q4 20 1530 Carbon Film 1 10 5 390 R34 Q6 Q7 Q10 20 1532 Carbon Film 1 10 5 470 R37 R44 22 6041 Silicon Q2 Q5 Q9 20 1542 Carbon Film 1 10 5 4...

Page 52: ...IWOH 21051 F _____ IB w 42 R43 Layout Amplifier and Pre Scaler Assembly 19 0604 Fig 4 2 G 0 R S Q...

Page 53: ...R 150 Cl t P o ol 1 o t ___ _____ Rt no ll AMPLIFIER Rt7 ISO 16 80 SHAPER DECADE DIVIDER Mt 4 7K Qll ov 3o _ Circuit Amplifier and Pre Scaler Assembly 19 0604 0 p 119 06041 FXI TO 19 605 FIG 4 8 Fig...

Page 54: ...19 0608 To 5 5 5 5 5 5 5 5 5 5 5 5 5 5 20 20 10 10 10 20 Value Component References 100 R13 R21 R24 1k R1 R4 R22 R25 R28 R31 R32 R34 10k R18 R26 R30 R33 R37 R41 incl 1 2k R8 R10 1 5k R27 1 8k R3 R6 2...

Page 55: ...00 R 22 n o 0 o _ U CJ o _ ClO I 02 o R21 c w R25 o os 0 R31 e R24 o R 5 R27 R8 R2B 0 3 I R32 _Rl3_ 0 0 _QL _Rlo_O oa RJO R14 o f Og o _Rl2_ o C13 R16_ o R33 R15 g o 4 R34 4 LK _ Ut G F F F c 0 R17 I...

Page 56: ...OUT ASSEMBLY _ _ _ __ __ __ 4 1 T P 5_ _1 3Z s 0 cl r y a OS ______________________ J R tT PV M uTT N SKT 1 0 SKT OVERFLOW TO READOUT ASSEMBLY 11o 11 075 F i 10 z TO OVERFLOW LAMP 3C 0 s I I I T O I U...

Page 57: ...ption Rat Resistors Carbon Film 1 4 Carbon Film 1 4 Carbon Film 1 4 Carbon Film 1 4 Metal Oxide lW Ca acitors Ceramic Ceramic Ceramic Ceramic Ceramic Polyester Miscellaneous Switch 51 ider Tol Value C...

Page 58: ...TO PIN 12 ON AMPLIFIER AND HIGH SPEED DECADE ASSEMBLY 19 0605 Fig 4 8 10 I I I I St I ATTENUATOR SWITCH I 5 TO FRONT 4ar ____ _PANEL EARTH 0 OPERATE CHECK SWITCH Sf I II I 11 P 40 7p RS 910 Circuit a...

Page 59: ...Film 1 4 5 330 R19 Q14 Q15 Q16 Q19 20 2392 Carbon Film 1 4 5 3 9k R24 020 20 2470 Carbon Film 1 4 5 47 R27 R35 22 6018 Silicon pnp Q7 20 2471 Carbon Film 1 4 5 470 R5 R29 R32 22 6047 Silicon npn 01 02...

Page 60: ...8 1 _ __ I 19 0605 RLA LKl 015 IC2 LK2 R39 61 51 27 ICl 1 6 3 3 a 1 2 3 4 5 6 7 8R5256 RSO T 9 P2 10 1128 12 1314 15 16 R26 R37 f fHz1o51 1s oso51 Layout Amplifier and High Speed Decade Assembly 19 06...

Page 61: ...A Dt lA T Rt t IK kf qt I c n ii Rt 47 150 I Flit A l IOK c U R T h 30 I 11 44 IO Jt t c II t s 470 1000 811 b 10 4 q It o 29 I 14 15 18 U 17 II 4 S I 1 Circuit Amplifier and High Speed Decade Assemb...

Page 62: ...57 9059 PARTS LIST FOR FIG 4 10 READOLIT ASSEMBLY 11 0754 Description Rat Tol Value Component References Integrated Circuits Decade Counter IC2 IC3 IC4 IC5 IC6 DigitaI Indicators DigitaI Decade DI1 DI...

Page 63: ...1 Display Counter Assembly 19 0607 L _ 1 LK4 _ J IWOH 21051 L K8 K i Display Assembly 19 0606 Layout Readout Assembly 11 0754 Fig 4 9 G 0 R S Q...

Page 64: ...LK6 l K L K LK4 11 81f 11 14 IC3 I C4 2 3 2 3 NOTU6 0N _ _____________ 6 0 r T i s s 1 v3 4 TO G SPEt D I OE c AOE o P TO HIGH SPEE O O O cit CONTROL ASSEMBLY J C OE ASSEMBLY Fi i 4 5 ig 4 8 OISPLAY...

Page 65: ...20 2152 Carbon Film 1 4 5 1 5k R3 20 2122 Carbon Film 1 4 5 1 2k R2 20 2181 Carbon Film 1 4 5 180 R6 20 2221 Carbon Film 1 4 5 220 Rl 20 2681 Carbon Film 1 4 5 680 R5 20 6542 Variable 1 20 1k R4 4 Cae...

Page 66: ...jwoH 210Sl 1 0 r _ _ I I I I I 0 r I I I C1 TO BE MOUNT D ON TF AC 14 Sl D 3 4 0 I lr J 70 80 Layout Power Supply Board 19 0664 Fig 4 11 G 0 R S Q...

Page 67: ...l I Ill 01 R3 3 h 1 SK Ill Cl Illi RZ Ill C3 0 01 Illi AI RS 220 eo 1Y O joo 11 NOTE FOR LAYOUT DIAGRAM REFER TO FIG 4 11 Circuit Mains Pack Assembly 11 0758 14 joo lt To owl I14T PIN 3 4 7 1 180 G oz...

Page 68: ...502 Battery 23 3036 Socket 23 3050 Socket 8 way 23 4043 Switch toggle S1 26 3007 Charge Warning Lamp 12V LPl CHARGE REGULATOR ASSEMBLY 19 0665 Resistors 20 3820 Metal Oxide 1 5 82 R1 2 20 3331 Metal O...

Page 69: ...WOH 21051 U l FSl SA w _____ 0 CD Layout Charge Regulator Assembly 19 0665 Fig 4 13 G 0 R S Q...

Page 70: ...______ _ _ J 3 330 01 4 8 W G r o Sla POWE R OUTf VT lOCKET lb__ _ ezc zJ NOTE FOR LAYOUT DIAGRAM REFER TO FI G 4 13 7 00 b 7 BK THERMOSTAT THE I Circuit Battery Pack Assembly 11 0759 Tl 0 BK I so A I...

Page 71: ...ents are common to both instruments except where indicated otherwise 22 1852 23 1016 23 1017 23 3005 23 3051 23 4013 23 4042 23 3009 23 8000 Zener Diode 6 2V Lampholder Red Lampholder Orange Socket BN...

Page 72: ..._ _ _ _ _ _ j sv No I 20 W N N V 33 COI ITRO A s v I J 0608 1 81 Y S Fig 4 5 vv 811 v 36 37 18 17 2 1 ol I 87G BASE W N R G FOR INTERNAL INT STD FUNCTION SWITCH WI b h FREQUENCY STANDARO EXT STD O vv...

Page 73: ...SECTION 5 APPENDICES AND CHANGE INFORMATION G 0 R S Q...

Page 74: ...ts April 1974 AMENDMENT FAST WARM UP OSCILLATOR UNIT The standard oscillator unit is now the Type 9441 which is a direct replacement for the 9440 The technical specification details remain unchanged I...

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