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Tektronix 1L30, Instruction Manual

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Tektronix 1L30 Instruction Manual Download Page 87

C a lib ra tio n — Type  1L30

RF  AMD 

LOCAL  OSCILLATOR 

CALIBRATION

The 

following  procedure  is 

N O T  

a  part  of 

the 

routine

 

: v  ibration. 

It  provides 

a 

c a lib ra tio n   procedure  for  the 

r.F  section,  when 

adequate 

equipm ent 

and 

q u alified 

per­

sonnel  are 

available. 

(Personnel  must  be  experienced  in

 

high  frequency 

calibration  technique.)  If  practical,  Tektronix

 

recommends 

that  the  RF  assembly  or  the  Plug-In  Unit  be

 

returned 

to  Tektronix  for  repair.  See  your  local  Tektronix

 

Field  Office  or  representative.

The  following  additional  equipment  or  its  equivalent  is

 

required  to  calibrate  the  RF  section.  See  Fig.  6-30.

'  i.  Sampling  Oscilloscope  with  Plug-In  Units.  Frequency,

 

DC  to  3900 M Hz,  Dual-Trace  display,  sensitivity  2  mV/cm.

 

Tektronix  Type  661/4S2A/5T3.

2.  Frequency  Meter  or  Counter. 

Frequency  Range  500

 

MHz  to  9C0M Hz,  accuracy  .001%.  PRD  Type  504,  Hetero-

 

oyne  Frequency  Meter.

3.  Two  (2)  1 0 X   Attenuators. 

Tektronix  Part  No.  017-

 

CG44-00.

4.

  Two  (2)  50 <2  5 ns  coaxial  cables.  Tektronix  Part  No.

017-0502-00.

5.  Two  (2)  Adapters,  Sealectro  slide  on  plug  to  GR  874

 

connector.  (General  Radio  Part  No.  52-073-6400-813.)

Preliminary 

Procedure  After  Replacing  the

Oscillator  Tube

1. 

Assemble  the  oscilloscope  with  the  dial  tape  assembly,

 

install 

a  knob  on  the  tuning  shaft.  Loosen  the  Allen  set

 

screws 

on 

the 

Varactor  adjustment,  the  pickoff  probe  and

 

the 

inner  and  outer  choke  plunger.  See  Fig.  6-31.

2.  Set  the  Varactor  adjustment  two  full  turns  back  from

 

maximum  pentration  and  the  pickoff  probe  approximately

 

’A 

inch  back  from  maximum 

penetration. 

Tighten  set  screws

 

just  enough 

to  hold  the 

adjustments 

in  place.

3.  Set  the  tuning  to  the  highest  frequency  position  (clock­

wise  to  the  mechancial  stop).  Push  the  inner  choke  in  until

 

it  bottoms  against  the  tube;  do  not  exert  any  excess  pres­

sure  that  might  break  the  tube.  Pull  the  inner  choke  out

 

slightly  and  tighten  the  choke  set  screws.  The  tuning  mechan­

ism  should  stop  the  choke  just  short  of  touching  the  tube.

 

Push  the  outer  choke  to  its  high  frequency  end.

4.  Connect  the  voltage  leads  (filament,  B +   and  Varactor)

 

to  the  oscillator  assembly.  Replace  the  back  panel  of  the

 

Type  1L30  and  install  2  to  3  screws  to  hold  the  panel  in

 

place.  (This  reduces  the  possibility  of  short  circuits.)  Fig.

 

6-32  illustrates  the  postion  of  the  RF  oscillator  for  calibra­
tion  adjustments.

5.  Connect  the  oscillator  output  (both  coaxial  connectors)

 

through  a  Sealectro  to  GR  adapter,  a  50 Q,  5  ns  cable  and

 

a  1 0 X   attenuator  to  both  inputs  of  the  Sampling  Unit

 

(4S2A).  Set  the  sweep  to  free  run.  Turn  the  power  switch  to

 

O N ,  and  allow  a  30  minute  warm-up  period  for  the  oscillator

 

to  stabilize.

6.  W ith  the  oscillator  tuned  to  the  high  frequency  end,

 

adjust  the  plate  (outer)  choke  position  for  maximum  oscilla­

tion  amplitude,  as  indicated  on  the  sampling  oscilloscope

 

system.  Tighten  the  plate  choke  set  screws.

NO TE

If  these  screws  are  overtightened,  they  w ill  w a rp

 

the  plastic  rods  and  may  cause  the  tuning  o p e ra ­

tion  to  bind.

©

Fig.  6-30.  Equipment  required  to  calibrate  the  RF  oscillator  assembly.

Summary of Contents for 1L30

Page 1: ...t I m h v aj h B w i Serial Number f K S I r i c T e k tr o n ix In c S w M illikan W ay P O Box 500 Beaverton Oregon 97005 Phone 644 0161 Cables Tektronix 070 0520 01 268 ...

Page 2: ...tion Section 7 Electrical Parts List Mechanical Parts List Information Section 8 Mechanical Parts List Section 9 Diagrams Mechanical Parts List Illustrations Accessories Abbreviations and symbols used in this manual are based on or taken directly from IEEE Stand ard 260 Standard Symbols for Units MiL STD 12B and other standards of the electronics industy Change infomation if any is located at the ...

Page 3: ... Vi DISP BAL DISPERSION Trn to isr PHASE LOCK fine RF CENTER FREQ 0 vt 3 N S l r FF 1 MHz CAL MARKERS LOCK INT 1MHz OUT CHECK REF FREQ PUSH MIXER PEAKING OFF OR EXT REF FREQ IN _______ VERTICAL DISPLAY 1 V VW u r LOG VIDEO FILTER G AIN n V i V SQ LAW 9 t o r RECORDEH IN P U T ViO 0 f 50 V TEKTRONIX K C RF INFUTT MAX INPUT POWER 30dBm SERIAL X PORTLAND OREGON U S A g v 4 SWEEP INPUT S sawtooth stuc...

Page 4: ... of 20 minutes with power applied is provided for the instrument to stabilize The performance check procedure given in Section 5 of this manual provides a convenient method to check the Operating requirements listed in this section ELECTRICAL CHARACTERISTICS Characteristic Performance Requirement Supplemental Information Input Frequency Range 925 MHz to 10 5 GHz See Table 1 1 CW Sensitivity S N 2N...

Page 5: ... display LIN 26 dB with 6 centimeter display SQ LAW 13 dB with 6 centimeter display VIDEO INPUT Response 16 Hz to 10 MHz Maximum Input 30 dBm for linear operation Power 15 dBm power limit for diode mixer TO RECORDER Output 2 mV per display centimeter amplitude of signal in LIN mode 10 V OUT 10 V 5 20 mA maximum load current Discontinued after Serial No 669 TABLE 1 1 Minimum CW Sensitivity2 Signal ...

Page 6: ... environmental test procedures including failure cri teria etc may be obtained from Tektronix Inc Contact your local Tektronix Field Office or representative Characteristic Operating Requirements Supplemental Information Temperature Non operating 4 0 C to 6 5 C Operating 0 C to 5 0 C To meet operating specifications the in strument must stabilize at an ambient tem perature within this range for 4 ...

Page 7: ...pply The distortion appears as a change of dispersion linearity with a change of the analyzer GAIN control setting and is most noticeable in the narrow dis persion settings such as 1 kHz cm It also appears as a non symmetrical response to a CW signal in which the slope of one side of the signal drops abruptly to the base line See Fig 2 1 Change the 225 volt supply for the Vertical Signal Out C F V...

Page 8: ...can be covered without switching Frequency scale The range of frequencies that can be read on one line of the frequency indicating dial Incidental frequency modulation residual frequency mod ulation Short term frequency jitter or undesired frequency deviation caused by instabilities in the spectrum analyzer local oscillators Incidental frequency modulation limits the usuable resolution and dispers...

Page 9: ...nse The superheterodyne process results in two major IF responses separated from each other by Operating Instructions Type H 30 twice the IF The spectrum analyzer is usually calibrated to only one of these two responses The other is called the image 3 Harmonic conversion The spectrum analyzer will re spond to signals that mix with harmonics of the local oscil lator and produce the intermediate fre...

Page 10: ...g adjustment of the local oscillator to set phase lock operation RF CENTER FREQ Con trol tunes the local os cillator and the dial Dial indicates the cen ter frequency of the dis play when the IF CEN TER FREQ controls are centered LOCK CHECK Push the button to check and set phase lock operation REF FREQ Selector Se lects the source INT or EXT for phase lock operation Phase Lock Connector Used to ap...

Page 11: ...G position signal display amplitude is logarithmic with a dynamic range 40 dB In the LIN position a signal display amplitude is linear with a dynamic range 2 6 dB In the S Q LAW position signal amplitude is a square law function or the display amplitude is a function of signal power The SQ LAW dynamic range is 1 3 dB The VIDEO position connects the INPUT connector to the veitical amplifier of the ...

Page 12: ...to the bottom line of the graticule with the Position controls 3 Adjust the Scale Ilium control for the desired grati cule illumination 4 Apply a low amplitude signal between 60 and 30 dBm from the Signal Generator or other source preferably within the frequency range of the Type 1L30 through a co axial cable to the RF INPUT connector 5 Adjust the GAIN control for a moderate noise level 0 5 cm on ...

Page 13: ...uld be set with the DC level within the center 4 centimeters of the grati cule Adjust for phase lock operation and release the LOCK CHECK button 16 Set the DISPERSION selector to 500 kHz switch the DISPERSION RANGE switch to the kflz CM position then decrease the DISPERSION to 50kHz cm keeping the sig nal centered on screen with the IF CENTER FREQ control If Ine signal should suddenly shift off sc...

Page 14: ...ont Panel Calibration Adjustments Three screwdriver adjustments provide a means to cali brate the DISPERSION IF CENTER FREQ and the DISPER SION RANGE balance These front panel adjustments must be recalibrated whenever the Type 1L30 is shifted to an other oscilloscope to compensate for differences in sawtooth amplitudes and CRT deflection sensitivities It is also ad visable to check the adjustments...

Page 15: ...trols are cen tered As the dial knob is rotated clockwise the dial tape increases in frequency and true signals see spurious re sponses travel across the screen from left to right The RF CENTER FREQ control is supplemented by a FINE RF CENTER FREQ control that provides a fine tuning ad justment through a limited frequency range on either side of the dial frequency This provides a fine tuning adjus...

Page 16: ...en ter the trace then adjust the RF CENTER FREQ control to shift the signal towards a beat mode Fig 2 5 where phase lock operation can be achieved within the dynamic range of t ie amplifier Adjust the FINE RF CENTER FREQ control for a phase lock condition then release the LOCK CHECK button After phase lock operation has been set the dispersion may be reduced To maintain phase lock condition the IF...

Page 17: ... in some cases it may improve the display reso lution See Fig 2 23 It does however restrict the usable sweep rate because of the filter time constant The sweep rate is usually reduced to about 50 ms cm or slower when the filter is used Dispersion Dispersion is the swept frequency width or screen window The frequency excursion of the frequency axis of the dis play is usually expressed as frequency ...

Page 18: ...est resolution for a given dispersion and sweep time is expressed as Analyzer definitions Dispersion in Hz Sweep Time in s See Spectrum The resolution of the Type 1L30 Spectrum Analyzer is optimized for most settings of 1he DISPERSION selector when the RESOLUTION control is in ihe coupled position Reso lution however can be varied from approximately 100 kHz to less than 1 kHz by uncoupling the RES...

Page 19: ...itch is in the LOG and LIN positions W ith the DISPLAY switch in Fig 2 12 To trigger the analyzer from the display requires 0 2 cm of signal Tune the spectrum null point away from the sweep start ing point with the RF CENTER FREQ control the SQ LAW position the output to the RECORDER con nector is square law SPECTRUM ANALYZER DISPLAYS The Spectrum Analyzer display is a plot of signal am plitude as...

Page 20: ...he carrier frequency plus or minus the modulating frequencies Fc nFm where n 1 2 3 etc Figure 2 15 illustrates vari ous degrees of frequency modulation Frequency modulated signal bandwidth is usually deter mined by the width of the sidebands containing sufficient energy to dominate the display A very approximate cal culation of the signal bandwidth equals 2 4FC Fm where AFC is the frequency deviat...

Page 21: ...ents and their amplitudes on a spectrum analyzer Com mon pulse forms and their spectra are described in Ref erence Data for Radio Engineers 4th edition Chapter 35 ITT 1956 Fig 2 16A illustrates a theoretical voltage spectrum of a rectangulary pulse pulse modulated oscillator The main lobe and the side lobes are shown as groups of spectral lines extending above and below the baseline The number of ...

Page 22: ...uency of the tunable first local oscillator The response to an input sig nal whose frequency is above the local oscillator frequency by a difference of the IF is called an image response The input signal that is the IF below Hie oscillator frequency is the true response For example the analyzer will re ceive a 700 MHz signal at a dial reading of 700 MHz oscillator frequency of 900 MHz and at a dia...

Page 23: ...easurements The relative amplitudes between signals are measured as follows 1 Center the IF CENTER FREQ controls then type the signal with the lowest amplitude to the center of the screen with the RF CENTER FREQ control 2 With no IF ATTEN switched on adjust the GAIN con trol so the low amplitude signal establishes some reference amplitude 3 Tune the stronger signal to the center of the display Add...

Page 24: ... performed by applying a calibrated or crystal controlled frequency to the RF INPUT and calibrating the dial near the frequency range of the input signal then tune the input signal to the same screen position and note the dial reading plus or minus the measured dial error Frequency Difference Measurements Frequency separation measurements to 100 MHz can be performed as follows 1 Adjust the DISPERS...

Page 25: ...hotographs or the use of a storage oscilloscope to show frequency drift as a function of time Temperature compensation can be computed by this process Amplitude Modulation Modulating frequency or frequencies and modulation per centage are the quantities most often desired from an AM signal measurement Fig 2 13 illustrates some amplitude modulated signals the methods to measure the modulating frequ...

Page 26: ... Uncouple the RESOLUTION control and turn to the fully clockwise posi tion The analyzer is now a fixed frequency device 3 Set the plug in oscilloscope Trigger Source selector to Int position and adjust the triggering controls for a stable triggered display The IF CENTER FREQ FINE control may require slight adjustment to displace the spectrum null point from the sweep start See Fig 2 12 4 Set the T...

Page 27: ...nal VIDEO FILTER B Same signal as A VIDEO FILTER ON OFF LIN mode Cl Amplitude modulated signal 2 kHz sidebands D Same signal as C VIDEO FILTER ON Fig 2 23 Using the VIDEO FILTER to improve the resolution capabilities of the analyzer 2 21 ...

Page 28: ...the 3rd mixer stage where it is mixed with 70 MHz and converted to a 3rd IF of 5 MHz The bandwidth of this 5 MHz IF can be varied from less than 1 kHz to more than 100 kHz by the variable resolution circuit The signal output from the resolution amplifier is am plified detected and applied through a logorithmic linear or square law voltage divider circuit to the vertical ampli fier of the plug in o...

Page 29: ...ERSION i t 1 RF AMPLITUDE COMPARATOR i I I i 1o SWEEP I COMPARATOR SWEPT FREQ OSCILLATOR AMPLIFIER I i i OSCILLOSCOPE VERTICAL AMPLIFIER 1 1 IF 1 1 CENTER 1 FREQ L DISCRIMINATOR COMPARATOR J FREQUENCY DISCRIMINATORS SWEEPER CIRCUIT j RECORDER DETECTOR V J L TO RECORDER i 70 MHz OSCILLATOR k r VERTICAL DISPLAY y 75 MHz 75 MHz SWITCHED IF ATTENUATOR 1 dB 51 dB 5 MHz NARROW BAND AMPLIFIER MIXER VARIA...

Page 30: ...l lator circuit In its quiescent state the transistor is turned on by the forward bias on its base circuit As the input signal Circuit Description Type 1L30 swings negative D821 turns on pulling the transistor base down The emitter of Q820 follows the base down reducing the current in transformer T820 This couples this change back to the base circuit of Q820 causing regeneration The tran sistor tu...

Page 31: ...al A block diagram of the sweeper circuit is shown in Fig 3 4 3 4 The sawtooth voltage from the oscilloscope is connected to the analyzer SWEEP INPUT connector by an external jumper cable If the sawtooth amplitude is 150 V a selector switch SW201 on the back panel of the instrument switches in additional attenuation so the amplitude of the voltage to the comparator Q230 Q240 is approximately the s...

Page 32: ...r is tapped across the partial winding of L314 and oapacitively coupled to transformers T330 and T331 The transformers provide a voltage step up ratio of approximately 2 1 and convert the single ended input signal to a balanced push pull output signal to drive the output amplifier Q340 Q350 Fig 3 5 is a simplified drawing of the transformer cir cuit The oscillator is the signal source or generator...

Page 33: ... the comparator Q260 which is converted to a single ended output signal for the sweep compartor Q230 Q240 The IF CENTER FREQ and the FINE IF CENTER FREQ controls R270 and R274 shift the cur rent distribution through the comparator Q260 to change the average DC level of the output signal to Q240 This allows the IF center frequency to be shifted without affecting the dispersion calibration or disper...

Page 34: ...mitter and L134 at the collector of Q130 are peaking adjustments which are adjusted for optimum flatness of the IF response 0 3 7 compensates for the tran sistor rolloff toward the high end of the band however because of the low Q in the collector circuit due to R134 and circuit loading the overall effect of both adjustments 1 134 and 0 3 7 is seen as a bandpass response adjustment The output from...

Page 35: ... very narrow bandpass1 see Fig 3 8 Ref F langford Sm ith RAC Radiotron Designer s Handbook fourth edition 3 8 Fig 3 8 Crystal filter equivalent circuit and impedance response curves The bandwidth of the filter network is a function of the crystal output load which is primarily the parallel resonant circuit therefore bandwidth becomes a function of the Q for the resonant circuit The Q of the output...

Page 36: ...ted by the voltage divider R606 R607 so that an approximate 4 5 centimeter display in the LIN position will provide approximately the same signal amplitude when the switch is changed to either of the other two positions In the SQ LAW position two germanium diodes D603 D604 are connected back to back to form a square law voltage divider Signal voltage to the amplifier V620 in the SQ LAW mode become...

Page 37: ... play and enables easier evaluation of signal modulation when viewing signals with minimum resolution bandwidth The VIDEO position of the VERTICAL DISPLAY selector connects the external Video INPUT connector through the G AIN control to the vertical amplifier input of the plug in oscilloscope The GAIN control R411B ganged with R411A in the narrow band amplifier provides one control to change the g...

Page 38: ...ft bushings Avoid the use of chemical cleaning agents which might dam age the plastics used in this instrument Some chemicals to avoid are ben zene toluene xylene acetone or similar com pounds The life of potentiometers and selector switches is in creased if these devices are properly lubricated Use a cleaning type lubricant such as Cramoline on shaft bush ings and switch contacts Lubricate the sw...

Page 39: ...s and a multiplier the value will normally be printed on the resistor For example a 332 kQ resistor will be color coded but a 332 5 kQ resistor will have if value printed on the resistor body The color coding sequence is shown in Fig 4 1 Obaining Replacement Parts Local Purchase All electrical and mechanical parts re placement can be obtained through your local Tektronix Field Office or representa...

Page 40: ...t color of the code Power supply voltages can be identified by the color stripes and the backg rund color White back ground indicates a positive supply A tan background in dicates a negative supply Table 4 2 shows the wiring color code for the power supply voltages used in the Type 1L30 TABLE 4 2 W iring Color Code Supply Back ground Color Polarity 1st Stripe 2nd Stripe 3rd Stripe If a p plicable ...

Page 41: ...the sequence as the com ponents are removed or installed 4 4 3 Carefully remove the inner plate connector and lif out the large and small t eflon insulating washers This exposes the tube and spanner retaining nut 4 Using special tool Tektronix Part No 003 0397 00 see Fig 4 6 unscrew the spanner nut then gently lift out the tube while feeding the heater wires into the opening at the front end of th...

Page 42: ... color code Apply power if desired The ground wire on the DISPERSION RANGE switch must be grounded for proper operation of the instrument Fig 4 15 illustrates the component layout and circuit layout on the honeycomb chassis 6 Remount the chassis using the reverse procedure of steps 1 through 5 Do not force the chassis into place Check for pinched or undue strain on the wires and connec tors When r...

Page 43: ...e honeycomb square pin connector Fig 4 10 Phcss lock assembly removed and ready to troubleshoot 6 Slide the assembly ta c k and out of the U shaped cover Be careful that the mounting screws for the low pass filter do not catch the chassis 7 Supp r the phase iack assembly on a small block see Fig 4 10 thru connect the signal lead from the oscillator to 4 6 ...

Page 44: ...4 00 The following techniques are suggested to i emove and replace components on the ceramic strips 1 Grip the lead with needle nose pliers Apply the tip of the soldering iron to the connection at the notch then pull gently to remove the lead 2 Clean the leads on the new component and bend them to the correct shape to fit the replacement area Insert the leads making certain the component seats the...

Page 45: ...rol setting or malfunctioning associated equipment Note the effect the controls have on the trouble symptoms Normal or abnormal operation of each control helps establish the location and nature of the trouble Check the instrument calibration or the calibration of the affected circuit The trouble may be corrected after calibration Before changing any adjustment during this check note the position o...

Page 46: ...e CAUTION Do not use an ohmmeter scale that has a high in ternal current Do not check the fofward to back resistance ratios of tunnel diodes or mixer diodes Some Trouble Symptoms A misleading trouble symptom may occur if one of the Varactor diodes in the oscillator circuit is shorted This will clamp the DC output voltage from the phase lock circuit and prevent vertical trace shift as the FINE RF C...

Page 47: ... v vfif iV lYSii tiV t ii frfrVi a I YSriSiTiVif i jl ni Ji ii lifliiiM lfiifurtiitTii jliT f i i rT fC u Maintenance Type 1L30 v Fig 4 14 Phase Lock and Recorder Detector circuit boards 4 10 ...

Page 48: ...si L i y n Maintenance Type 1L30 Fig 4 15 Honeycomb assembly drcui a n d component layout 4 n ...

Page 49: ...or Hew lett Packard Model 241 A 5 VHF Signal Generator Frequency range 10 MHz to 400 MHz accuracy 1 calibrated 0 to 120dBm variable output Hewlett Packard Model 608D 6 Constant Amplitude Signal Generator 1 MHz to 5 MHz output amplitude I V to 5 V peak to peak Tektronix Type 191 Constant Amplitude Signal Generator 7 Step Attenuator 1 dB steps and lOdB steps accuracy 1 Hewlett Packard Type 355D and ...

Page 50: ...ered adjust the IF CENTER FREQ CAL for minimum horizontal signal shift as the DISPERSION control is switched between the lOM Hz cm and 2M Hz cm positions Position the signal to the graticule center with the oscilloscope Horizontal Posi tion control f Adjust the DISP BAL for minimum signal shift as the DISPERSION RANGE is switched between the M H z C M and kHz CM positions Adjust until there is min...

Page 51: ...he RF CENTER FREQ control to minimize interference of the converted signals tunable signals c Set the DISPERSION RANGE to kHz CM position and the DISPERSION to lOOkHz cm Uncouple the RESOLU TION and turn the control fully clockwise Set the Time Cm selector to 1 s NOTE If a Type 549 storage oscilloscope is used set the controls for single sweep storage and after sweep automatic erase d Adjust the G...

Page 52: ...nd 10 is Marker Selector buttons on the Time Mark Generator g Check the range of the IF CENTER FREQ FINE con trol Frequency range must equal or exceed and 50 kHz from the centered position h Set the DISPERSION selector to the 500 kHz position and center the IF CENTER FREQ controls Apply 10 ns and 1 as time markers to the RF INPUT i Check dispersion accuracy over a and 2 5 MHz change in the IF cent...

Page 53: ...ctor Turn the INT 1 MHz REF FREQ switch to the OFF position 7 Check Dynamic Range of Vertical Display Modes a Requirement The dynamic range of the screen for the three display modes is as follows LIN 26 dB LOG 40 dB SQ LAW 13 dB b Apply a 200 MHz signal below 40 dBm from a VHF Signal Generator that has a calibrated variable out put attenuator to the RF INPUT connector c Adjust the GAIN control and...

Page 54: ...nuator dial from the Signal Generator to the R r INPUT connector Adjust the Spectrum Analyzer GAIN control for a signal amplitude of 5 cm 5 6 2 Switch the 1 dB IF ATTEN switch on and adjust the Signal Generator output attenuator control to return the signal amplitude to 5 cm 3 Check the new reading of the attenuator dial Should read 59 dBm 0 1 dBm 4 Turn the 1 dB IF ATTEN switch to OFF Check the r...

Page 55: ... input amplitude until the signal display on the analyzer oscilloscope screen is again 2 8 cm j Check the input signal frequency Must equal or be less than 16 Hz Remove the signal to the Type 1L30 Video IN t PUT and the test oscilloscope 12 Check Incidental Frequency Modulation a Requirement With the DISPERSION RANGE switch at the kHz CM position the IF incidental FM should not exceed Performance ...

Page 56: ...750 MHz 4850 MHz Scale 4 4800 MHz 5750 MHz 5850 MHz Scale 4 5800 MHz 6750 MHz 685QMHz Scale 5 6800 MHz 14 Check RF Center Frequency Calibration System Sensitivity and Phase Lock Operation a Requirement Dial accuracy within 2 MHz f i of the dial reading sensitivity within that specified in Table 5 5 phase lock operates through all frequency ranges b Apply a frequency and amplitude calibrated signal...

Page 57: ...tude 2X average noise level NOTE If excessive spurious signals are present refer to the Calibration procedure This concludes the performance check for the Type 1130 If the instrument has met all checks it is ready to operate and will perform to specifications listed in Section 1 TABLE 5 5 Suggested1 Signal Gen RF Center Freq in MHz Dial Scale Minimum Sensitivity2 Dial Accur acy check 100 kHz Resol...

Page 58: ...istortion Group One 1 Plug In Oscilloscope Oscilloscope with a 6cm vertical height that will accept the Type 1L30 Spectrum Analyzer This oscilloscope should be the oscilloscope the Type 1L30 being calibrated will normally be used with The front panel adjustments will require readjustment if the analyzer is changed to another oscilloscope A Type 545B Oscillo scope is used in this procedure 2 Test O...

Page 59: ...Fig 6 1 A Test equipment required for calibration ...

Page 60: ... Calibration Type 1130 ...

Page 61: ...s Tektronix Part No 012 0091 00 23 Flexible Cable Plug In Extension Tektronix Part No 012 0038 00 24 Adjusting tools a Screwdriver 3 32 blade 3 inch shaft 003 0192 00 b Tuning tool Handle 003 0307 00 Insert for 4 D hex cores 003 0310 00 c Low capacitance screwdriver V4 inch 003 0209 00 by 8 inch fiber rod with screwdriver shaped ends Group Two RF Signal Generators with calibrated frequency and out...

Page 62: ... accuracy through the f and 2 5 MHz range of the IF CENTER FREQUENCY at each DISPERSION selector position listed in Table 6 2 Accuracy must remain within 3 over the center 8 divisions of the graticule 8 Adjust Avalanche Voltage and Internal Page 6 15 1 MHz Reference Oscillator Set the INT 1 MHz REF FREQ selector to the EXT REF FREQ position push the LOCK CHECK button and adjust the Avalanche Volts...

Page 63: ...6 27 System Sensitivity and Phase Lock Operation Apply signal frequencies that are listed in Table 6 6 to the RF INPUT Check the dial accuracy and the analyzer sensitivtiy over th e frequency range Ac curacy must remain within 2 MHz 1 of the dial reading Check sensitivity with the RESOLU TION control fully clockwise Scale 1 105 dBm Scale 2 100 dBm Scale 3 95 dBm Scale 4 9 0 dBm Scale 5 75 dBm Chec...

Page 64: ... the square pin connector for the honeycomb as sembly c Adjust the IF CF Range R290 see Fig 6 4 for 0 75 volts 0 1 V of trace deflection on the test oscilloscope d Disconnect the probe from pin P of the connector e Apply a 200 MHz signal from the Time Mark Genera tor harmonic of 10 ns marker through a 20 dB attenuator to the RF INPUT connector f Adjust the GAIN control for a display signal ampli t...

Page 65: ... have some effect on display linearity Interchanging the discriminator cables W375 and W370 with another length is also a possible correction Changing these transistors or cables is only recommended after new transistors have been installed o r components have been changed end linearity cannot be obtained by other means a Equipment setup is shown in Fig 6 3 Fig 6 5 Typical dispersion accuracy disp...

Page 66: ... 5 Range of the control should be equal or exceed and 25 MHz from its centered position It is checked by rotating the control to both extreme positions from center and noting the frequency shift of the 1 is or 10 MHz mark ers as the control is rotated Dispersion accuracy and dis play linearity must remain within the listed specifications of Table 6 1 to the and 25 MHz positions e Center the IF CEN...

Page 67: ... Gen erator 2nd harmonic of the 10 ns marker through a 40 dB attenuator two 10X attenuators to either RF INPUT con nector NOTE l This 200 MHz signal may be applied through a P6040 probe coble adapier to the Sealectro con nector J100 on the wide bandpass filter assem bly c Turn the GAIN control fully clockwise and switch in the required IF Attenuation to reduce the signal amplitude to approximately...

Page 68: ...e test oscilloscope display will remain fairly symmetrical through each position of the RES Fig 6 9 Test oscilloscope display when C504 and C508 are cor rectly adjusted DISPERSION lOCfkHz CM RESOLUTION fully clock wise Calibration Typo 1130 s v tr t t if I I Fig 6 10 Location of the resolution adjustments c L t OLUTION control Remove the test oscilloscope probe Return the RESOLUTION control to the...

Page 69: ...esolution bandwidth at the 6dB amplitude point This point can be determined by switching in 6dB of IF Attenuation and noting the ampli tude level then switching out the attenuation to return the display to full screen Bandwidth must equal or exceed Fig 6 12 Typical bandpass characteristics of the resolution ampli fier at maximum and minimum resolution settings 100 kHz at the 6dB point and the resp...

Page 70: ...arkers from the Time Mark Generator through a 20 dB attenuator and 50 Q termination to the RF INPUT connector NOTE The Bal adjustment should be preset to its center position and the kHz Cm Cal R368 adjustment preset near the full clockwise position c Adjust C384 and C385 Fig 6 14 for 1 marker 2 centi meters Fig 6 15 Adjust these capacitors simultaneously in opposite directions This will keep the 2...

Page 71: ... CENTER FREQ FINE control Frequency range must equal or exceed and 50 kHz from its centered position f Set the DISPERSION selector to the 500 kHz position and center the IF CENTER FREQ controls g Check dispersion accuracy through and 2 5 MHz I change in the IF center frequency at each DISPERSION selector position listed in Table 6 2 A 1 marker 2 centimeter Checking 500 kHz CM disper sion Center ma...

Page 72: ... posi tion depress the LOCK CHECK button and adjust the Avalanche Volts adjustment R831 Fig 6 17 clockwise until avalanche occurs then ccw from this point about 8 turn Free running avalanche appears as a wide noise trace or a definite increase in the noise level on the trace See Fig 6 18 Turn the adjustment Vs turn counterclockwise from the free running state NOTE It is not uncommon to have instru...

Page 73: ...nstruments Serial No 439 and below Connect the test oscilloscope probe to pin D of the phase lock square pin connector switch the INT 1 MHz REF FREQ to the OFF position and check for a voltage swing that is approximately between 4 volts and 10 volts as the FINE RF FREQ control is rotated through its range With instruments Serial No 440 and above 1 Depress the LOCK CHECK button and rotate the FINE ...

Page 74: ... free running trace to the bottom line of the graticule Midrange 000 Centered kHz CM 500 kHz OFF Midrange LIN Switches off Centered OFF Time Cm 10 ms Triggering Adjusted for a free running sweep Horizontal Position Centered trace 9 Check Accuracy of IF Attenuator dB Selectors a Equipment setup is shown in Fig 6 20 b Apply a 200 MHz signal that is 10 dB below 1 mW from the signal generator through ...

Page 75: ...ttenuator dial Should read 59 dBm 0 1 dBm 4 Turn the 1 dB ATTEN switch to OFF Check the re mainder of the IF ATTEN selector steps as directed in Table 6 3c J I 4 TABLE 6 3 c Spectrum Analyzer IF ATTEN switch O N RF Generator Attenuator Control Setting 2 dB 58 dBm 2 dBm 4 dB 56 dBm 4 dBm 8 dB 52 dBm 8 dBm 16 dB 44 dBm 1 6 dBm 20 dB 40 dBm 2 0 dBm 10 Check Dynamic Range of Vertical Display Modes a E...

Page 76: ...the RESOLUTION control and turn one posi tion counterclockwise from the fully clockwise position c Adjust the G A IN control so the amplitude of the 200 M H z feedthrough signal is approximately 5 cm d Turn the VIDEO FILTER switch to the O N position e Check The video filter circuit should attenuate and distort the 200 M H z response See Fig 6 21 fig 6 21 Typical Video Filter integrated display of...

Page 77: ...tor through a BNC T connector to both the Type 1L30 Video INPUT connector and the vertical Input of a DC coupled test oscilloscope c Turn the Type 1L30 GAIN control fully clockwise Ad just the signal generator output control for a signal ampli tude of 4 cm on the plug in oscilloscope then adjust the test oscilloscope sensitivity for a 4 cm display reference amplitude d Decrease the signal generato...

Page 78: ... constant 4 cm signal amplitude on the monitor oscilloscope i Check Frequency of the signal generator must equal or exceed 10 MHz NOTE The Type 1L30 Unit must be plugged directly into the oscilloscope vertical compartment for the high frequency check j Remove the signal generator and the test oscilloscope from the Video INPUT of the Type 1L30 NOTES S f i k ...

Page 79: ...ly a very stable 200 MHz signal to accurately measure incidental FM and the Type 1L30 must be on a vibration free plat form a Equipment setup is shown in Fig 6 23 b Set the DISPERSION RANGE switch to kHz CM and the DISPERSION to 500kHz cm Set the Time Cm to 50 ms c Apply a 200 MHz signal from the Time Mark Gener ator 2nd harmonic of 10 ns marker through a 20 dB atten uator and a 50 Q termination t...

Page 80: ...e signal display on screen Adjust the j MIXER PEAKING for maximum signal amplitude K h Switch the INT 1 MHz REF FREQ to the INT position I and phase lock the display I I 1 i Decrease theDISPERSION to 1 kHz cm keeping the h phase locked signal on screen with the IF CENTER FREQ I controls j Check the amount of frequency modulation in the con p verted signal IF LO display Must not exceed 3 mm or 1 5 ...

Page 81: ...hen adjust the MIXER PEAKING control for maximum signal amplitude d Adjust C68 in the RF mixer Fig 6 26 for optimum sig nal amplitude and display flatness over the 100 MHz disper sion f and 50 MHz either side of 1000 MHz 17 Adjust Wide Band Amplifier Response O Check Response Flatness of RF Mixer and Wide Band IF Amplifier The Type 1L30 response flatness and sensitivity is depend ent on the combin...

Page 82: ...not within tolerance adjust C l37 and LI34 Fig 6 26 for maximum sensitivity and an alyzer response flatness Adjusting C l37 will usually produce a noticeable effect on the response slope Adjust LI 34 for optimum sensitivity at the high frequency portion of the IF response j Check the display flatness over the frequency range of the instrument as follows NOTE Each time the Signal Generator frequenc...

Page 83: ...stablished in step 3 may be a minimum or maximum signal response point through the dispersion window Check for and use the aver age signal amplitude over the dispersion window Calibration Type 1L30 TABLE 6 4 RF Center Frequency Applied Signal Generator Frequency 1450 M H z 1550 MHz S cale 1 1500 MHz 1950 M H z 2050 MHz Scale 1 2000 MHz 2450 MHz 2550 MHz Scale 2 2500 MHz 2950 MHz 3050 MHz Scaie 2 p...

Page 84: ...ivity and Phase Lock Operation a Equipment setup is shown in Fig 6 27 t b Apply a frequency and amplitude calibrated signal that is between 60 dBm and 30 dBm to the RF INPUT connector I NOTE If an external attenuator is used it must have flat high frequency characteristics Use Tektronix 20 dB Attenuator Part No 0 1 1 0 0 8 6 0 0 or 40dB i Attenuator Part No 0 1 1 0 0 8 7 0 0 c Set the DISPERSION c...

Page 85: ...requencies listed in Table 6 6 Accuracy must equal or check within 2 MHz fl of the dial reading Dial accuracy need only be checked for scale 1 The other scales are harmonic settings of this fundamental range Fig 6 28 Signal to noise ratio of 2 1 for measuring analyzer sensitivity NOTE To check the dial accuracy to specifications an accurate within 0 1 signal source must be used The listed signal g...

Page 86: ...b Install the Type 1L30 into the plug in oscilloscope verti cal compartment Connect a 50 0 termination on the RF INPUT connector Set the DISPERSION RANGE selector to kHz CM the DISPERSION to 500 kHz cm uncouple the RESOLUTION control and turn fully clockwise c Adjust the G AIN control for approximately 1 centi meter of noise level Adjust the MIXER PEAKING control for maximum signal amplitude then ...

Page 87: ... full turns back from maximum pentration and the pickoff probe approximately A inch back from maximum penetration Tighten set screws just enough to hold the adjustments in place 3 Set the tuning to the highest frequency position clock wise to the mechancial stop Push the inner choke in until it bottoms against the tube do not exert any excess pres sure that might break the tube Pull the inner chok...

Page 88: ...r constant os cillation with no dead spots or backlash Output power should remain fairly uniform and within 0 75 V to 1 5 V peak to peak throughout the tuning range If dead spots are noticed at either end of the tuning range try adjusting the Varactor and or the pick off probe If backlash is present try adjusting the outer choke position All electrical adjustments interact therefore their effect s...

Page 89: ...llator to read 1100 on the dial tape c Adjust the varactor until the oscillator frequency is 1300 MHz as indicated by a beat mode signal on the fre quency meter Turning the Varactor assembly clockwise will reduce the oscillator frequency Turning the Varactor assembly counter clockwise will increase the oscillator frequency 3 Repeat steps 1 and 2 as necessary to track the oscillator to the tape 4 C...

Page 90: ... Connect the frequency meter to the RF INPUT c Set the Type 1L30 front panel controls as follows DISPERSION RANGE M H z C M DISPERSION 1 MHz cm INT 1 MHz REF FREQ OFF VERTICAL DISPLAY LIN IF CENTER FREQ Centered 000 RF CENTER FREQ 1300 FINE RF CENTER FREQ Fully clockwise d Set the frequency meter to 650 MHz e Note the position of the signal on the analyzer dis play f Rotate the FINE RF FREQ contro...

Page 91: ...cased piste plastic EMI electromagnetic intei erence see RFI PMC paper metal cased EMT electrolytic metal tubular poly polystyrene epsilon 2 71828 or of error prec precision equal to or greater than PT paper tubular equal to or less then e iemal forod focus and intensity flct head brass flat head steel fillister head brass fillister head steel frequency modulation feet or foot giga or 109 accelera...

Page 92: ...0 1000 pF Cer C136 231 0616 00 6 8 pF Cer Cl 37 281 0063 00 9 35 pF Cer Var Cl 38 281 0635 00 lOOOpF Cer Cl 39 283 0039 00 0 001 ju F Cer Cl 40 283 0103 00 180 pF Cer C143 281 0635 00 1000 pF Cer Cl 45 281 0558 00 18 pF Cer Cl 46 281 0549 00 68 pF Cer Cl 47 281 0523 00 100 pF Cer C148 283 0065 01 0 001 lF Cer Cl 49 281 0635 00 1000 pF Cer Cl 51 281 0549 00 68 pF Cer Cl 52 281 0549 00 68 pF Cer Cl ...

Page 93: ...039 00 0 001 ftF Cer 500 V 4 C368 283 0003 00 0 01 xF Cer 150V A 4 C373 283 0039 00 0 001 fxF Cer 500 V 1 C376 283 0039 00 0 001 ixF Cer 500V v C383 283 0039 00 0 001 xF Cer 500 V 1 C384 281 0105 00 0 8 8 5 pF Cer Var C385 281 0105 00 0 8 8 5 pF Cer Var C386 283 0039 00 0 001 xF Cer 500 V is 1 C401 283 0065 01 0 001 Cer 100V 5 C412 283 0003 00 0 01 ixF Cer 150 V 1 C413 283 0039 00 0 001 ft Cer 500...

Page 94: ...xF C626 283 0003 00 0 01 ixF C651 283 0001 00 0 005 ju F C656 283 0001 00 0 005 ixF C658 283 0083 00 0 0047 ixF C660 281 0629 00 33 pF C661 283 0081 00 0 1 ix C662 283 0001 00 0 005 ju F C666 283 0028 00 0 0022 ix C668 285 0703 00 0 1 ixF C801 283 0065 00 0 001 ix C806 281 0543 00 270 pF C807 281 0536 00 1000 pF C810 283 0003 00 0 01 ju F C823 283 0081 00 0 1 fX C832 283 0065 00 0 001 ix C844 283 ...

Page 95: ...n Replaceable by 1N3605 D365 152 0153 00 Silicon Replaceable by 1N4244 D373 D376 153 0025 00 Silicon Selected 152 0153 00 1 pair D380 152 0238 00 Silicon 1N4442 100 439 D380 152 0246 00 Silicon Low leakage 0 25 W 40 V 440 up D383 D386 153 0025 00 Silicon Selected 152 0153 00 1 pair D387 152 0238 00 Silicon 1N4442 100 439 D387 152 0246 00 Silicon Low leakage 0 25 W 40 V 440 up D412 152 0107 00 Sili...

Page 96: ...Adapter Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Chassis mtd 1 contact female Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Socket w hardware Chassis mtd 1 contact female Socket Banana Jack Assembly BNC Coaxial Cable Assembly 61 4 inch Cable Assembly 6y inch Inductors L66 L812 108 0394 00 30 pH L832 L842 L862 L872 LI 01 108 0371 00 0 23 pH LI 02 108 0370 00 0 14 pH...

Page 97: ...pressor Var Core 276 0506 00 X402 up L508 L534 L620 L624 L675 108 0363 00 67 iH 108 0226 00 IOOju H 108 0366 00 67 xH 114 0209 00 28 60 xH 276 0507 00 Core Ferramic Suppressor Var Core not available separately L676 L804 LR413 LR423 LR427 276 0507 00 Core Ferramic Suppressor 114 0208 00 95 150 xH Var 108 0368 00 1 0 xH wound on a 1 kQ V2 W resistor 108 0367 00 1 jtxH wound on a 1 kQ V4 W resistor 1...

Page 98: ...Silicon 40242 RCA Q U O 151 0175 00 Silicon 2N3662 Q450 151 0175 00 Silicon 2N3662 Q460 151 0175 00 Silicon 2N3662 Q 5I0 151 0181 00 Silicon 40242 RCA Q520 151 0175 00 Silicon 2N3662 Q530 151 0175 00 Silicon 2N3662 Q650 151 0175 00 Silicon 2N3662 Q710 151 0164 00 Silicon 2N3702 Q717 151 0174 00 Silicon 2N3403 Q720 151 0164 00 Silicon 2N3702 Q727 151 0174 00 Silicon 2N3403 Q800 151 0108 00 Silicon ...

Page 99: ... w 5 R168 315 0121 00 120 0 y4 w 5 R169 315 0510 00 51 O y4 w 5 R170 315 0121 00 1200 y4 w 5 R173 315 0221 00 220 0 y4 w 5 R174 315 0240 00 24 0 y4 w 5 R175 315 0221 00 220 0 y4 w 5 R178 315 0431 00 430 0 y4 w 5 R179 315 0120 00 120 y4 w 5 R180 315 0431 00 430 0 y4 w 5 R183 315 0911 00 9100 y4 w 5 R184 307 0107 00 5 6 0 y4 w 5 R185 315 0911 00 910 0 y4 w 5 R201 321 0332 00 28 kO y8 w Prec 1 R202 3...

Page 100: ...i R253 311 0329 00 50 kn Var R254 323 0440 00 374 kn A W Prec 1 100 629 R254 323 0409 00 178 kn A W Prec 1 670 up S R254 323 0418 00 221 kn A W Prec 1 630 up 1 R255 316 0101 00 ioo n AW R 1 100 629 I R256 323 0440 00 374 kn A W Prec R256 323 0414 00 200 kn A W Prec 1 630 669 R257 311 0326 00 io kn Var X670 up R258 315 0222 00 2 2 kn 4 W 5 X670 up jy R260 Use 321 0423 00 249 kn w Prec 1 y R261 Use ...

Page 101: ... Use 315 0510 00 51 ka R376 Use 315 0510 00 51 ka R380 316 0272 00 2 7 ka R381 316 0274 00 270 ka 1 R383 315 0681 00 680 a R384 321 0097 00 ioo a i R385 321 0097 00 ioo a i R401 315 0680 00 68 a R410 315 0393 00 39 ka R411A R411B 311 0588 00 5ka l ka R414 315 0512 00 5 1 ka R416 315 0102 00 l ka i R426 315 0102 00 i ka R436 315 0102 00 i ka R448 i J 315 0472 00 4 7 ka R454 315 0103 00 10 ka t R456...

Page 102: ...552 315 0111 00 n o a y4 w 5 R553 315 0151 00 150 a y4 w 5 R554 315 0331 00 330 a y4 w 5 R555 315 0511 00 5ioa y4 w 5 R556 315 0561 00 560 a y4 w 5 R557 315 0104 00 ioo ka y4 w 5 R558 315 0394 00 390 ka y4 w 5 R559 315 0394 00 390 ka y4 w 5 R606 316 0102 00 i ka y4 w R607 316 0471 00 470 a y4 w R610 316 0102 00 i ka y4 w R623 316 0101 00 ioo a y4 w R624 316 0103 00 io ka y4 w R626 316 0680 00 68 a...

Page 103: ... y4w R821 301 0183 00 18 kn y2w R823 Use 304 0181 00 180 n 1 w R830 315 0103 00 io kn y4w R831 311 0453 00 io kn Var R832 315 0333 00 33 kn y4w R841 315 0510 00 51 n y4w R844 308 0293 00 4kn 3 W WW R846 308 0307 00 5 kn 3 W WW R855 317 0510 00 51 n W R856 321 0193 00 l kn y8w Prec R856 321 0289 00 10k y8w Prec R857 321 0193 00 l kn y8w Prec R857 321 0289 00 10k y8w Prec R860 315 0104 00 ioo kn y4w...

Page 104: ...0866 00 260 0643 00 260 0758 00 260 0643 00 260 0642 00 260 0689 00 120 0428 00 120 0325 00 120 0325 00 120 0325 00 120 0340 00 120 0340 00 120 0340 00 120 0340 00 120 0340 00 120 0340 00 Toggle IF ATTEN 20 dB Toggle IF ATTEN 16 dB Toggle IF ATTEN 8 dB Toggle IF ATTEN 4dB Toggle IF ATTEN 2 dB Toggle Slide IF ATTEN 1 dB 262 0763 00 Rotary DISPERSION 100 339 262 0763 00 Rotary DISPERSION 340 up Rota...

Page 105: ...00 RF Probe 5 5 and 7 5 inch W78 175 0367 00 3 25 inch Lossy W94 175 0364 00 12 25 inch Lossy W HO 175 0308 00 3 25 inch Coaxial W150 175 0313 00 4 37 inch Coaxial W200 175 0358 00 2 812 inch Coaxial W300 175 0358 00 2 812 inch Coaxial W300 175 0413 00 8 23 inch Lossy W 3705 W 3755 W500 175 0358 00 2 812 inch Coaxial Y440 158 0024 00 70 MHz Crystals Y501 158 0019 00 5 MHz Y610 158 0027 00 5 MHz Y8...

Page 106: ... List Type 1L30 i I i 4 i i I INDEX OF MECHANICAL PARTS LIST ILLUSTRATIONS Located behind diagrams FIG 1 FRONT FIG 2 REAR CHASSIS FIG 3 IF CHASSIS FIG 4 W IDE BAND FILTER PHASELOCK ASSEMBLY FIG 5 STANDARD ACCESSORIES 7 16 ...

Page 107: ...ded w resistor 210 0223 00 1 LUG solder y4 ID x 7 u inch OD SE 210 0940 00 1 WASHER flat Vi ID x 3 8 inch OD 210 0583 00 1 NUT hex V4 32 x s u inch 6 366 0153 00 1 KNOB charcoal DISPERSION RANGE knob includes 213 0004 00 1 SCREW set 6 32 x 3 18 inch HSS 7 384 0394 00 1 ROD shaft 8 214 0694 00 1 CAM control actuator cam includes 213 0022 00 2 SCREW set 4 40 x 3 18 inch HSS 9 376 0029 00 1 COUPLING ...

Page 108: ... resistor 210 0046 00 1 LOCKWASHER internal ID x 0 400 inch OD 210 0471 00 1 NUT hex V4 32 x 5 u inch 358 0054 02 1 BUSHING y4 32x3 32 inch 16 366 0153 00 213 0004 00 17 260 0643 00 210 0046 00 210 0940 00 210 0562 00 18 366 0215 01 19 262 0762 00 260 0758 00 211 0005 00 20 366 0284 00 100 669 213 0020 00 100 669 366 0487 00 670 213 0153 00 670 1 KNOB charcoal GAIN knob includes 1 SCREW set 6 32 x...

Page 109: ..._____ ASSEMBLY oscillator dial tape assembly includes ASSEMBLY oscillator assembly includes OSCILLATOR ASSEMBLY input frequency control ASSEMBLY cable RF probe OSC to J65 J855 GEAR mounting hardware not included w gear SCREW set 2 56 x 3 3 2 inch HSS ASSEMBLY dial tape assembly includes GEAR ROD sprocket WASHER plastic 0 130 ID x 0 375 inch OD WASHER spacer plastic 0 265 ID x 0 437 inch OD SPROCKE...

Page 110: ...h OD 1 ROD securing rod includes 1 RING retaining 1 SOCKET mounting hardware not included w socket 2 WASHER flat y4 ID x 3 8 inch OD 1 NUT hex V4 32 x s u inch 49 136 0140 00 1 0 0 669X 1 210 0895 00 1 0 0 669X 1 210 0465 00 1 0 0 669X 2 210 0223 00 1 0 0 669X 1 50 384 0631 00 4 212 0044 00 1 51 386 0115 01 1 213 0138 00 2 119 0143 00 1 52 119 0064 01 1 53 103 0053 00 1 54 210 0579 00 1 2 1 0 1 0 ...

Page 111: ...ntact 58 132 0014 00 1 CONNECTOR sleeve 59 175 0367 00 1 ASSEMBLY cable 3 250 inches J69 to J80 60 366 0153 00 1 KNOB charcoal FINE FREQ knob includes 213 0004 00 1 SCREW set 6 32 x 3 1 6 inch HHS 61 X670 1 RESISTOR variable mounting hardware not included w resistor 358 0054 02 X670 1 BUSHING y4 32 x 3 3 2 inch 210 0046 00 X670 1 LOCKWASHER internal y4 ID x 0 400 inch OD 210 0471 00 X670 1 NUT hex...

Page 112: ...re not included w switch 2 SCREW 2 56 x 3 u inch RHS 2 NUT hex 2 56 x 3 u inch 2 RESISTOR mounting hardware for each not included w resisfor 1 SCREW 6 32 xiy2 inches RHS 1 EYELET 1 NUT hex 5 i6 X 21 3 2 inch long 1 SCREW 6 32 x 5 14 inch PHS 1 LUG solder SE 6 mounting hardware not included w lug 1 SCREW 6 32 x V 4 inch PHS 1 NUT hex 6 32 x Vi inch 1 PLATE switch mount 2 ROD spacer hex y4 x 1 370 i...

Page 113: ...WASHER internal 4 not shown LUG solder SE 4 not shown NUT hex 4 40 x 3 6 inch not shown SHIELD tube 7 8 I D x l 3 4 inches h w spring SOCKET crystal mounting hardware not included w socket SCREW thread forming 2 32 x 3 16 inch PHS COIL mounting hardware not included w coil ROD spacer 3 8 x 5 8 inch LUG solder DE 6 LUG solder SE 4 SCREW 4 40 x 3 6 inch PHS BRACKET coil mounting mounting hardware no...

Page 114: ...179 1044 02 630 Q Description Y 1 2 3 4 5_______________ _______ 4 STRIP ceramic 7 u inch h w 20 notches each strip includes 2 STUD plastic mounting hardware for each not included w strip 2 SPACER plastic 0 406 inch long 1 STRIP ceramic 7 inch h w 4 notches strip includes 1 STUD plastic mounting hardware not included w strip 1 SPACER plastic 0 406 inch long 1 CABLE HARNESS chassis 1 CABLE HARNESS ...

Page 115: ...ng hardware for each not included w connector 358 0135 00 1 BUSHING plastic 12 131 0372 00 11 CONNECTOR coaxial w hardware 13 210 0206 00 2 LUG solder 1 0 long 14 210 0812 00 3 WASHER fiber 1 0 15 210 0813 00 3 WASHER fiber shouldered 1 0 16 131 0373 00 30 CONNECTOR terminal stand off 17 136 0153 00 1 SOCKET crystal w clamp mounting hardware not included w socket 211 0022 00 1 SCREW 2 56 x 3 14 in...

Page 116: ...ing hardware not included w assembly 36 211 0065 00 16 SCREW 4 40 x 3 1 6 inch PHS 37 175 0308 00 1 ASSEMBLY cable 3 250 inches J120 to J109 175 0313 00 1 ASSEMBLY cable 4 375 inches J147 to J151 175 0384 00 ASSEMBLY cable black band 175 0384 01 ASSEMBLY cable brown band 175 0384 02 ASSEMBLY cable red band 175 0384 03 ASSEMBLY cable orange band 175 0384 04 ASSEMBLY cable yellow band 175 0358 00 1 ...

Page 117: ...board includes 10 PIN connector mounting hardware not included w board 4 SCREW 4 40 x 3 u inch PHS 2 NUT block 1 RESISTOR variable FINE FREQ mounting hardware not included w resistor 1 LOCKWASHER internal y4 ID x 0 400 inch OD 2 NUT hex y4 32 x s 16 inch 1 SWITCH unwired LOCK CHECK mounting hardware not included w switch 1 LUG solder y4 ID x 7 u inch OD SE 2 NUT hex y4 32 x s u inch 1 SWITCH unwir...

Page 118: ... Description No Part No Eff Disc_______y 1 2 3 4 5 _____________ ___________ 4 2 7 ASSEMBLY cable J855 to OSC see FIG 1 FRONT 28 610 0172 00 1 ASSEMBLY WIDE BAND FILTER mounting hardware not included w assembly 29 213 0138 00 2 SCREW sheet metal 4 x 3 6 inch PHS 3 0 ASSEMBLY cable 12 250 Inches J94 to J100 see FIG 3 IF CHASSIS 31 ASSEMBLY cable 3 250 inches J80 to J69 see FIG 1 FRONT ...

Page 119: ...del No t No Part No Eff Disc y 1 2 3 4 5 Description 5 1 134 0052 00 1 2 012 0091 00 1 3 134 0076 00 1 070 0520 01 2 PLUG red CORD patch BNC to banana red 18 inches long PLUG protector MANUAL instruction not shown TYPE 1L30 SPECTRUM ANALYZER 9 2 9 9 3 0 sswwssrfe ...

Page 120: ...T Y P E I L 3 0 S P E C T R U M A N A L Y Z E R ib i IF SYSTEM BLOCK DIAGRAM 9 1 9 2 ...

Page 121: ...S i j IF OUT TO 1 5 0 2 3 0 MHx BAND PASS FILTER l TO LOCK CHECK SWITCH T Y P E ILSO SPEC TR U M ANALYZER a 12 67 R F AND PHASE LOCK BLOCK DIAGRAM 9 3 9 U 1 ...

Page 122: ... IS T F O P SEM IC O N D U C TO R TY PES DENOTES SELECTED LOSSY COAX T Y P E I L 3 0 S P E C T R U M A N A LY Z E R REFERENCE DIAGRAMS PHASE LOCK C IR C U IT WIDE BAND AMPLIFIER MIXER OUTPUT AMPLIFIER lies R F S E C T I O N T 9 5 9 6 ...

Page 123: ...Ms im SEE PARTS ItST FOR EARLIER VALUES AND SERIAL NUMBER RANGES OF PARTS MARKED WITH BLUE OUTLINE T Y P E I L 3 0 S P E C T R U M A N A L Y Z E R n o7 PHASE LOCK CIRCUIT s 7 9 8 ...

Page 124: ...kt aA 1ST AMPLIFIER E A M PLIFIER SEE PARTS U S T FOR SEMICONDUCTOR T Y P E S d e n o t e s s e l e c t e d l o s s y c o a x T Y P E 1L30 SPECTRUM A N A LY ZE R e s r WIDE BAND AHPLIRER 3 AND MIXER 9 9 9 10 ...

Page 125: ... ft U m A iw u 2 ffeiifr I r v i J aB4 d I iov i 4 2J0 RZC6 0 2 0 f CENTER D i 4 99K 350 5i 4 R2 fc W 2 4 S jow S t M c w i i I I 4 M i AVV t I 4 1 V i ie i j BOr I ...

Page 126: ... i s J W S4 L T O 0401 S J Rt FE RE MCE P I B M S WIDE BAND AMPLIFIER M IX E R S NARROW BAND I F AMPLIFIER v lO M W t OSCILLATOR M IXER C I5 I L 5 I C I 5 2 C IQ 1 L 1 0 8 C I8 6 FO R M A L O W P A S S FILTER C H A R A C T E R IS T IC D EN O TES SELECTED LOSSY COAX T Y P E iL 3 0 S P E C T R U M A N A L Y Z E R II6 S I F ATTENUATOR 9 13 9 1U ...

Page 127: ......

Page 128: ...iig ___ j A ffift W T s f e T Y P E 1 L 3 0 S P E C T R U M A N A L Y Z E R 9 17 9 18 SEC f A TS U5T CO EAKUER VALUES AND Sf SAl NUMBER CANOES Of PA6TS MARKED WITH ELUE OUTUNE VARIABLE RESOLUTION S it fc CIRCUITS J ...

Page 129: ...S C IL L A T O R M IX E R VA R IA BLE R E SO L U T IO N C IR C U IT S n o t e DECOUPLING NETWORKS IN TWE OSCILLOSCOPE CAUSE SEVERAL OF TWE AND B S U P P U tS TO READ SEVERAL VOLTS LOW TW IS IS N O R M A L AND DOES NOT IN D IC A TE TR O U B LE IN TH E A N A L Y Z E R T Y P E L 3 0 S P E C T R U M AklALYZLR OUTPUT AMPLIFIER 9 19 9 20 ...

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