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Delta Electronics C-QUAM ASE-1, Предварительное руководство

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Содержание C-QUAM ASE-1

Страница 1: ...oweredRadio Com I I I I I I C OOAM S TEREX SYSTEM I INSTALI ATICN I Preliminary Manual I I I I I I 1 I s I l I ll DELTA ELECTRONICS DELTA ELECTRONICS INC I 6730 GENERAL WASHINGTON DRIVE ALEXANDfKA VIR...

Страница 2: ...ual EXCITER t ODEL ASE 1 t aXJI ATICN M Nl roR t ODEL ASM 1 FCC I D Il 767Cl300 DELTA ELF Cl RCNICS INC 5730 GENERAL WASHING IW DRIVE ALEXANDRIA VIR iINIA 22312 c OUAM is a registered trademark of r t...

Страница 3: ...production Such component parts bear only the warranty of the manufacturer thereof in effect at the time of shipnent to Purchaser Delta will at its own expense and after written notice has been recei...

Страница 4: ...hether to person or property resulting from its use REPLACEMENT PARTS To obtain service replacement or warranty items write or call Delta Please supply Product Identification Model Number and Serial N...

Страница 5: ...3 2 Procedures 3 1 I 4 ASE 1 RF CONNECTIONS TO BROADCAST TRANSMITI ER 4 1 4 1 Introduction 4 1 4 2 Discussion 4 1 I 5 ASE 1 AUDIO CONNECTIONS TO 5 1 BROl DCAST TRANSMITI ER 5 1 Introduction 5 1 I 5 2...

Страница 6: ...DENTIFICATION 2 IDEAL OSCILLOSCOPE DISPLAY OF 2 3A I srEREO SIGNALS 5 SAMPLE OSCILLOSCOPE DISPLAYS OF 2 38 srEREO SIGNALS 6 7 I CLOSED LOOP F QUIPMENT ARRAN iEMENT 1 2 4A MATCHIN i PAD CONsrRUCTION 2...

Страница 7: ...AUDIO EQUALIZER MATRIX Y i ENCODER L R AMPLIFIER SAMPLE TRANSMITTER RF AMPLIFIER PCMER SUPPLY AUDIO NIGtrr PROCESSOR AUDIO INTERFACE BULK DELAY FUNCTI AL DIAGRAM 1 0NITOR MIXER DECODER AVC METER POWE...

Страница 8: ...www SteamPoweredRadio Com I LIST OF TABLES I I I I I I I I I I I I I I I I I t I I...

Страница 9: ...to transmit stereo It is truly a compatible stereo transmission system II AM ANO PM 1 l JLATICN To ensure a full understanding of C QUAM a quick presentation of modulation characteristics is in order...

Страница 10: ...www SteamPoweredRadio Com I I I I I I I I FIGL RE lA ENVELOPE I I I I I I FIGURE 18 I SPECTRLM I I FIGURE 1 I AMPLITUDE t ODULATION I F 2...

Страница 11: ...velope detector does not detect ilase variations of the PM signal All the sidebands add and subtract according to their phasing to produce a constant amplitude RF signal Thus a ilase modulated carrier...

Страница 12: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I I FIGLRE 2A ENVELOPE FIGURE 28 SPECTRLM FIGURE 2 PHASE t ODULATION I F 4...

Страница 13: ...atible with envelope detector receivers because the Q channel amplitude affects the amplitude of the sum of the I and Q channels The QUAM signal is thus passed through a limiter to strip off the ampli...

Страница 14: ...I I I I I I I I I I CARRIER 90 PHASE OSCILLATOR SHIFTER QUAM SUMMATION TRANSMITTER RF INPUT L A Q L A _____ ___________ ____ L RAUDIO MATRIX IASM 1 MODULATION MONITOR FIGURE 3 C QUAM BLOCK DIAGRAM I...

Страница 15: ...ization In Section 6 procedures are given for the first Proof of Performance measurement process involving the new equipment Sections 7 and 8 are Equipment and Assembly level Lists of Material and Ass...

Страница 16: ...ax at 85 mod L R single channel 1 0 max at 70 mod NCYrE Ibis is equivalent of 140 modulation 70 envelope modulation simultaneous with 70 stereo infor mation 1 2 2 ASE l ASM 1 Unit Specifications EXCIT...

Страница 17: ...c output Sample Transmitter C QUAM output 2 volts peak to peak into 50 ohms for closed loop tests Barrier Strip rear panel L R audio output Modulation Meters Functions or Land L R or Rand L R Front pa...

Страница 18: ...Com _ _ 0 N 4 05801 AM Sf ll O ICIT II aS 1 C OUAM St ST M I OUT lUCtAONICI I I I O o OS802 S801 OS803 l llOT SHll O NIGHt l III QHT J t l A Ill _ i M801 7 EXCITER FRONT VIEW R782 R78 l R784 R783 580...

Страница 19: ...R Mj Mono Stereo switch Stereo Pilot switch L R Envelope switch Night Day switch Balance Bottom L RQ indicates L R and L R audio drive levels On Off indication of night operating mode Audio drive lev...

Страница 20: ...parallel with front panel switch for changing equalization when using another transmitter or antenna See Exciter front panel controls Left and Right 600 ohm balanced audio input O dBm to 10 dBm determ...

Страница 21: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I...

Страница 22: ...D ER AUDIO a UA liER MA_IR IX DAY UOIO N IGHT PROCESSOR POWER SUPPLY f 1 JIWTrifflff h S607 1 i 0 E FE A T 7 o r tiPROtlss J Sl i 1 _t j t 1 l S J i tl 4 ll J s A _ f lf I i Q i_f jl ti _ 1 t i i i _...

Страница 23: ...UENCY EQUALIZATICN sections compensating for signal path differences in the NIGHT transmitter LEFT and RIGHT audio signal DEI Y from O to 15 microseconds is also provided to compensate for both the mY...

Страница 24: ...o Interface Card This circuit card irounted on the left side of the EXCITER provides the interconnections for the two 600 ohm attenuator pads that reduce the station s LEFT and RIGHT input audio typic...

Страница 25: ...mponent side 1 THRU 22 The exciter circuit card has 22 connections on each side of the card When viewed as shown above the alphabetical pin outs are always on the left and the numerical are on the rig...

Страница 26: ...front thumb wheel switch Its function depends on the modulation switch setting S801 The monaural 100 envelope and 125 envelope limits have no external settings and are both fixed factory adjustments...

Страница 27: ...www SteamPoweredRadio Com I 1 I I I I I I I I I 1 I I I I I I...

Страница 28: ...set control R819 As long as the carrier level indication is within the range of the meter 20 change of RF level the modulation circuits will be within their design accuracy Two position meter functio...

Страница 29: ...www SteamPoweredRadio Com I I I I I I I I I I 1 tC IT I QE jf P Ne t I I I I I I I I I...

Страница 30: ...left audio channel For distortion measurements of right audio channel A 60 dB s tep attenuator in 10 dB steps used with the front panel carrier set control to calibrate the rronitor RF sample input fr...

Страница 31: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I MON I li A C 1 C v 1T C li v OUITtol...

Страница 32: ...hannel AVC The AVC circuit card oontrols the audio signal level allowing the audio signal to be used as an instantaneous indication of the modulation level Ibis card also contains the carrier level de...

Страница 33: ...onversion to a 450 kHz IF It has a wide band front end which is switch prograrrrned to the station frequency at the factory 1 4 4 Monitor Curcuit Card Edge Connector Pin Identification be Monitor circ...

Страница 34: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I I I CAR 0 t pc e CONH c ro I N IJ tHnFtcATitJ...

Страница 35: ...e equipnent for any evidence of mishandling Report damage to the carrier illlt ediately 2 2 MECHANICAL CHECKOUT CAUTIOO Complete this procedure before applying power to units Remove all screws from th...

Страница 36: ...lloscope Display Use an oscilloscope continually in an X Y mode to display the stereophonic operation of the C QUAM Exciter and Monitor An adequate X Y display requires an oscilloscope of such sensiti...

Страница 37: ...2 lf connect the oscilloscope to the Monitor unbalanced left and right BNC outputs J9 and Jll Connect the left output to the X axis oscilloscope input CAUTICl l Reduce the intensity of the oscilloscop...

Страница 38: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I 1 I I left Only Right Only left Plus Right left Minus Right NOTE Pilot Tone Off Figure 5 Ideal Oscilloscope Displays ofStereo Signals __ __ _...

Страница 39: ...ww SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I I NORMAL T H D on RIGHT can be at top or bottom POOR SEPARATION POOR RIGHT EQUALIZATION Figure 6 Sampl6 Oscill ope Displays ofSt reo Signal...

Страница 40: ..._ IPMON NEGATIVE PEAK l R Modulation 5 Straight line indicates relatively little 1PM except an ucersion on the negative peak of modulation l R Modulation 95 Curved line indicates aconsiderable amount...

Страница 41: ...oscilloscope input is usually high impedance The distortion analyzer input which will be used to take measurements from several of the Monitor rear panel outputs via BNC connectors also can be unbala...

Страница 42: ...edRadio Com I I I I I I I I I I I I I I I I I I I i Ot f fll A AlYZ fl L l tftBI OSClllOSC D 1111 uu ___ ____ L MOfillllOfl u I I IXClllfl Figure 1 _ Closed Loop Equipment Arr ngemenc AUOIO OSClllATOf...

Страница 43: ...efore unplug the line cords to turn either unit off After AC power is applied the lights for all meters should be lighted rtlrow the meter switch small toggle switch on the Monitor under the carrier L...

Страница 44: ...www SteamPoweredRadio Com I I I I I I I I I I I 430Sl 430A AUDIO OSCILLATOR PAO r I LEFT LEFT I I I RIGHT I RIGHT I I L R L R I Figur 2 PHASING EXCITER INPUTS...

Страница 45: ...odulation 2 4 2 Left Plus Right AM Operation Connect the output of the audio oscillator through the pad to the left and right audio input terminals of the Exciter phasing the inputs for L R operation...

Страница 46: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I 10 20 JO SO dB so ____l__ 10 Oscilloscope Envelope Spectrum Analyzer Figure 3 _____ __________________ _...

Страница 47: ...ter should indicate 100 modulatin Adjust the digital switch immediately to the left of the meter to 100 and the corresponding LED indicator should also light For distortion measurements on L R 95 modu...

Страница 48: ...e the right hand meter Select the L R function with the pushbuttons S802 and pusbh the range selector buttons until a reading is obtained On the Exciter adjust balance control R783 until a null in the...

Страница 49: ...to L R The meter should read within a percent of 95 Connect the distortion and noise meter to the BNC connector in the rear of the Monitor labeled L R Fidelity measurements should show performance wi...

Страница 50: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I I 0 10 zo lO 40 zo MAXIMUM IROAOCAST TRANSMITTER l R 10 l R CROSSTALK zoo IS Ar l l RI 50 AM l RI Auilio f1tqut11cy Ht Figur B...

Страница 51: ...ht channel output using pushbutton S802 The separation for 100 modulation can be read directly on the right meter by selecting the appropriate scale with pushbuttons S802 NOTE For SO modulation the re...

Страница 52: ...nt panel Using an unmodulated transmitter set the monitor RF input level for a center indication on the carrier meter Modulate the broadcast transmitter withal kHz tone inserted at the normal audio in...

Страница 53: ...the transmitter will be required to reduce the noise level Improved p wer supply filterirY3 on the lower level RF stages in the transmitter is a general practice The dressing of leads having H curren...

Страница 54: ...ter IPM measurements do not satisfy the values indicated in Figure 8 or to improve on existing performance modulate the transmitter with a higher frequency audio tone 5 or 7 5 kHz Watch the crosstalk...

Страница 55: ...puts have no amplitude modulation but do have the proper Ef ase m dulation required for C QUAM AM Stereo Another output is available at the rear of the Exciter which is oot rrodulated in either amplit...

Страница 56: ...es which in turn can cause incidental phase modulation lberefore the higher the level on the cable and the higher the RF stage in the transmitter being driven the less opportunity for incidental phase...

Страница 57: ...www SteamPoweredRadio Com I I I I I I I I I I 50 OHM COAXIAL CABLE U50 2W uo lW 471 l 2W Figure 9...

Страница 58: ...the stereo Exciter to your transmitter has been accomplished a recheck of the phase modulated hum and noise and incidental i hase trodulation should be made Using the normal audio input to the transm...

Страница 59: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I 50 OHM COAXIAL e CABLE C f 1 r J l J i BIAS 50 OHM it 76 i T lOOA I rt tW BIAS TOROID Figur 10...

Страница 60: ...ct the roonaural performance of the transmitter Initially an audio oscillator set to l kHz should be connected to the left and right audio inputs of the stereo exciter phased for L R modulation 5 2 PH...

Страница 61: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I I _ iJ p r _ I I _...

Страница 62: ...e with the front panel screwdriver adjust The precise setting of the L R drive to the broadcast transmitter can be more accurately set by observing separation lbwever separation at this time is rrost...

Страница 63: ...ignal outputs at the p rts J9 and Jll on the monitor Adjust LEFT DELAY SNITCH S608 from its zero position in l microsecond steps for best closure Compare the oscilloscope display with those shown in P...

Страница 64: ...o the oor positions Set the HI FREQ EQUAL Q and LOW FREQ EQUAL Q switches on both the DAY and NIGHT CIRCUIT CARDS S304 S306 S302 S301 S604 S606 S602 and S601 to the IN position See Figure 4 Set the OS...

Страница 65: ...I R GtiT HlfR O OUAL RIGHT HI FR 0 CON Lfl HI FR O CONT LEFT HlfR O COUAL RIGHT LOWFR O COUAL t LCFT LOW fR O EOUAL 2 Figure 4 Exciter Equ1lization AdjustrMnts UndN Top Cover Access RIGHT HIFR O COUAL...

Страница 66: ...pposite the DAY CIRCUIT CARD controls described above 5 5 SEPARATIOO CHECKS Separation measurements should now be made over the audio spectrllt with the LEFT channel driven and then the same measureme...

Страница 67: ...look for when operatiN J into the antenna One is that the impedance bandwidth of the antenna system often is much narrower than the dwnmy load and the radiation from the antenna back into the transmit...

Страница 68: ...ion is that the increase in Incidental Phase I Modulation is being caused by the RADIATED RF signal from the ANTENNA Appropriate corrective action must be undertaken 11lis completes the check out and...

Страница 69: ...convenience forms for tabulating and plotting the data are included in this section A sunmary of the FCC proof requirements is shown also in Appendix A 6 2 PROCEDURE Although the FCC requires that eq...

Страница 70: ...tly low that the measurements made of the various performance characteristics will be reflective of the limits of the broadcast transmitter stereo encoder performance Referring to Figure 2 the measure...

Страница 71: ...N LEFT AUDIO IN A eqOAOCAST TRANSMITTER AUDIO IN EXCITER 8 RIGHT AUDIO IN JOOU _ 11 t _R_ F O U T_ ___ ___ TRANSMITTER MODULATED R F SAMPLE L R F IN STEREO MODULATION MONITOR R L R L R PILOT l220 l220...

Страница 72: ...audio oscillator is connected as previously described for main L R left L and right R modulation The frequency response can be directly observed by selecting L R for main channel response or L for the...

Страница 73: ...ue with the indication of the red dB scale on the meter It is _ already calibrated against 100 percent modulation Incidental phase modulation is measured as follows Connect the audio oscillator throug...

Страница 74: ...ft The front panel meters can be used directly when set to L and R e separation can be read directly on the panel meters with the meter range buttons only for 100 percent left or right only modulation...

Страница 75: ...www SteamPoweredRadio Com I I I I I I I I SECTION 7 LISI S OF MATERIAL 7...

Страница 76: ...www SteamPoweredRadio Com I I I I I I I I I I I I H I I I I I I I SECTION 8 SCHEMATIC DIAGRAMS...

Страница 77: ...T INTO 600 HC5 10 Ill 2 9 14 243 6 20 226 290 200 2 A02 112 0 oo 100 2 1020 110 2260 5t 9 INF 0 5 4 4 3 IILUE 1 l fMATERIAL TO AtAA TEAMS CRJGHTI INPUT 2 Rf VISIONS SVM ZOH O SCRIPT ION OAT APPAOV O S...

Страница 78: ...K S30t HOTE ti J302 2 R320 BAL A3 19 10 2K J A383 TO fAOt f P4LU 2 2 Rj 51 1 IETEA SVITCH SL il __ _ _ AJ6 _ a HOJ30 E E J1 1 21 93 lK 5 LON Ffl O 0UM IU1ION r l09 I 1 S302 RllO 10 2 3 A3 27 A336 IK 2...

Страница 79: ...C658 l 5 C654 10 9 S609 613 2 0K LOtif REO EOALI A TION IOOK 605 2 0K R 70 ti II C8J2 1 800 A S 661 R682 681 OPTO IS4X AT O VAAU8L A S STEA Jt0 t7 U R664 7 0 C629 L OUT TO AtJQIO I JIO Y 18 PMC S OEF...

Страница 80: ...5 5 52 3 us 200 II 808 11 200 II C7 1 20 806 11 C19 1 4 t5V C 1 01 a 21 808 1S t5Y 4 R us 02 II 22 100 11 402 II 23 100 11 C2Z 1 3 C 2 OIi 12 402 11 100 11 REF DES PREFIX A l 2 REVISIONS YM ONE OESCRI...

Страница 81: ...CAPACITORS TO 8E REPU ca lilllt4 CilPACIT OF EQUIV T04P COEFFJCIEHTS 5 Cl20A Ct208 Ct2l AU At 5 TO II OETUO INEO T80 PEA CUSTOl Ell0 S CAAAIEA FREQUENCY tSV tSV At7t 22 D C SlFPRESSION H t SV 0107 CA1...

Страница 82: ...SIONS ITE out frilOTES 1 lH ESS OTHEFN lst SPEc1 1E o ALI IIESISTOAS AE IN 0NCS N 51 2 u ess OTHEAwl r SPf Clf m ALL CAPACITORS Re IH t4ICROfAAAOS tOS 3 TEST AKJ INSP CTl0N PAOC OuAe 70 l 32l 4 C90S C...

Страница 83: ...l O DRAWN _____ _______ OIMENSIONS AR IN INCHES I t lN ESS OTHtAWlSf P Clf IED M L flOISTORS AR IN t Mt SS OTIEAWIK SPECJ JO AU CAPACITOAS J lllll JN MICAOfl ARAOI SOI 1UT CJ J IOH 1 03 322 UOJCTOM IH...

Страница 84: ...PAOCEOUAE 70 3 a CA40t CA402 CR401 CR404 ARE tN4720 CA CR 406 DW07 AAE 1 4002 s YOI T AEGI U TOAS toOI O TtD OH AIGKT SIOf PM El IEATSI I I I I CR B 79 B IIN OIIT Jt l B V t i _ 1511 c CR40l l 5 I _ V...

Страница 85: ...01 uc l P i HO N UUICl 1 1 C u et o c t MWIH0110t Ml I 111 0 t OUO AHU IW l OI IP U 4 3 2 REVISIONS YI ONE OESCRIPT ION OATE APPA OVEO SEE SHEET Ol OF 8033 324 FOR REVISIONS I I cnts t _ lf 65 OTI ew1...

Страница 86: ...VISIONS L__ OUT J 2 J Jl5 fJ h R57l 5K ll504 TLOUCH L__ _ _ _ _ _ _ __ _ _ _ _ I 270K l 6 1 2 KM 2 21 l5V 880 6 oo hcss1 1 0 S4 515 7 _ IF clJ00 3C l _ v l 7K _i_ 1 L __ _____________________ J l l I...

Страница 87: ..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ J lo 5 7 CL fl PEAK IETEA 5 l UI L _ 0 C l f 0 C 1 c t O MlUl ltl CI C llltOfH _ c oo uo1 u 1 11 o t o l lO H l t T ff ta 4 ASM 1 NEXT ASSY USED ON APPLICATION 3 2 REVI...

Страница 88: ...T NCJ INSPECTION PA0CEOURE 7033 329 4 VlOt U tOZ U30 4 U305 U308 U309 AA n oa a U303 1s n082CP U308 IS tc 33029 0307 U3t0 AJiE MCU55Pt S5V C342 rs C324 1 U TPOI OOICATOA CIACUI _l Ol F A A Jt7 W AEICI...

Страница 89: ...TION 7033 CA903 VOLTAGE AEGu UOAS ARf N UrrfTEO ON RIGHT SIDE PANEL HEATIIHK __ 5 CA907 ANO CA908 INSTAU 1 CIA SERIAL _ iE Jte v 1U11ERS 78 ANO A80V l Jl R 25V 7915 I I It OUTI JUI ft t3 ssv I GM I 1...

Страница 90: ...www SteamPoweredRadio Com I I I I I I APPENDIX A I FCC SECTIOO S 74 40 AND 73 128 I I I I I I I I I I I I...

Страница 91: ...I I I I I I APPENDIX B I ASE 1 ASM l UIPMENT PERFORMANCE MEASUREMENT I SAMPLE FORMS I I I I I I I I I I I I...

Страница 92: ...al Radio Station Date L R Frequenc y Response 95 Modulati on L R Distortio n 95 Modulati on L R into L R Crosstalk 1PM L R Noise Level r 50 Exciter to Monitor Closed L oop Checkou t L A L R Performa n...

Страница 93: ...0 l dB 2 3 4 5 3 2 1 0 o 1 _ 5 Q I 1 21 0 dB 2 31 3 _ 40 4 l I I 50 I I I 100 Excit er to Moni tor Close d Loop Chec kout L R Perfo rman ce r I j I I I 400 Frequ ency Hz L R I I l I I 1 I I I I I I I...

Страница 94: ...o n _ _ _ _ _ _ Date L R Frequ ency Respo nse 95 Modul ation L R Distor tion 95 Modul ation L R into L R Crosst alk l nciden tial Ampli tude Modul ation L R Noise Level 50 100 Excite r to Monit or Clo...

Страница 95: ...ww SteamPoweredRadio Com Q _ dB 2 3 dB 4 5 3 2 _ _ 2 2 3 0 0 5 0 It 0 It 0 5 0 4 5 L R into L R Cro ssta lk 50 100 r _ n Exc iter to Mo nito r Clo sed Loo p Che cko ut L R Per form anc e Fre que ncy H...

Страница 96: ...nnel Audio Frequency Response 50 Modulation Right Channel Distortion 50 Modulation Right Channel into Left Separation 50 Modulation Right Channel Noise Level 50 fi Exciter to Monitor Closed Loop Check...

Страница 97: ...www Ste amP owe redR adio Com a 0 l dB 2 3 4 5 3 2 1 0 0 dB 5 n _ _ 1 2 0 2 3 0 3 5 41 0 4 5 50 100 Exc iter to Mon itor Clos ed Loo p Che cko ut Left Cha nne l Perf orm ance 400 Freq uen cy Hz Left...

Страница 98: ...annel Frequency Response 50 Modulation Left Channel Distortion 50 Modulation Left Channel into Right Separation 50 Modulation Left Channel Noise Level r 50 100 I Exciter to Monitor Closed Loop Perform...

Страница 99: ...w S tea mP owe red Rad io C om CJ 2 1 0 _ 2 3 4 5 t _ r Radi o Stati on _ _ _ _ _ Date L R 25 MOD ULA TION I V I I FRE QUE NCY RESP ONS E DIST ORT ION 50 100 4 L R 25 2 1 0 d 1 2 3 4 5 8 7 6 5 4 3 2 1...

Страница 100: ...Mod ulati on 2 dB 100 Sk Left 25 Mod ulati on 2 dB 100 5k Dist ortio n Left 75 Mod ulati on 5 Left 50 Mod ulati on 5 Left 25 Mod ulati on 5 Whe n attai nabl e r 50 EQU IPM ENT PER FOR Mff lE JPl uR ft...

Страница 101: ...redRa dio Com txl 2 l 0 _ 2 3 4 5 Rad io Sta tion __ __ __ __ _ _ Dat e Ir 50 100 LE FT CH AN NE L 75 MO DU LA TIO N I V I I FR EQ UE NC Y RE SPO NS E DIS TO RT ION UU H Lef t 75 2 1 0 d 1 2 3 4 5 8 7...

Страница 102: ...w SteamPoweredRadio Com W e 2 1 0 _ 2 3 4 5 8 7 6 5 4 3 2 1 0 50 100 r LEFT CHANNEL 50 MODULAT ION I I I I FREQUEN CY RESPONSE DISTORTI ON 400 1k Sk Freque Hz 7 k J 2 1 0 d 1 2 3 4 5 8 7 6 5 4 3 2 1 o...

Страница 103: ...a dio Co m 2 l 0 1 2 3 4 5 _ _ Rad io Stat ion _ _ _ _ _ _ _ _ _ _ Date ti 50 50 100 LEF T CHA NNE L 25 MO DUL ATI ON I V I i I FRE QUE NCY RES PON SE DIS TOR TIO N __ _____ _ _ Left 25 2 1 0 dE 1 2 3...

Страница 104: ...C 2dB 100 Skf Right 25 Modu lation 2 dB 100 Sk Disto rtion Righ t 75 Modu lation 5 Right 50 Modu lation 5 Righ t 25 Modu lation 5 r When attain able 50 EQU IPME NT PERF ORM ANC E MEA SUR EME NTS TABU...

Страница 105: ...www SteamPoweredRadio Com _ i A _ _ D a t e RIGHT INTO LEFT 50 MODU LATIO N 0 5 10 15 0 to 5 years 20 After 5 years 25 30 35 40 45 50 I I 60 50 100 400 1k Freque ncy Hz r...

Страница 106: ...ula tion Inciden tal Phase Modula tion Same as above express ed in Radian s No Specifi cation 95 L R Modul ation Subcha nnel to Main Crossta lk No Specifi cation 95 L R Modula tion _ EQUIP MENT PERFO...

Страница 107: ...www SteamPoweredRadio Com O n _ _ Date _ _ _ _ _ _ _ _ _ 0 5 o 15 20 25 30 _ 35 40 45 50 60 50 W so 5 ta 1Nc1 OEN TAL PHA SE MOD ULA TION L R 95 MOD ULA TION 100 400 Freq uenc y Hz 4 I...

Страница 108: ...www SteamPoweredRadio Com s s St a w I_ __ __ __ SUB CH ANN EL TO MA IN CR OS STA LK Date _ _ _ _ _ _ _ _ _ 0 5 10 15 20 I 25 dB 30 35 40 4 51 60 50 L R 95 MO DU LAT ION 100 400 Fre que ncy Hz...

Страница 109: ...ation L R 85 Modul ation L R 50 Modul ation L R 25 Modul ation Noise Level Be ow J 00 at 400 Hz L R _ _ _ _ _ d8 Left ___ ___ dB Right _ _ _ _ _ dB EQUIP MENT PERF ORMA NCE MEAS UREM ENTS TABU LATIO...

Страница 110: ...r tivr ___ ___ ___ ___ ___ _ Q _ dB 2 3 4 5 Da y __ __ O te _ _ _ _ _ _ _ _ Xm ttr __ Pow er _ _ _ _ _ _ Lo ad Du mm y _D ay _N ig ht _ _ _ _ _ _ _ _ _ 6 Di sto rtio n I I I I I I 1 1 1 1 1 4 4 dB 2...

Страница 111: ...0 _ 2 3 4 5 8 7 6 5 co 4 3 2 1 0 Rad io Station _ _ _ _ _ _ _ _ Date 50 100 400 RIGHT CHANNEL 75 MODULAT ION I V I I I FREQUEN CY RESPONSE DISTORTI ON lk Frequency Hz 5k Right 75 7 k 10k 12 15k 2 1 0...

Страница 112: ...dio Com v _ Date Right RIGHT CHANNEL SO 50 MODULAT ION 2 I 1 2 I 1 I I rn 0 I O dE 1 1 2 3 4 5 8 7 6 5 4 3 2 0 50 r I FREQUEN CY RESPONSE DISTORTI ON 100 400 1k FrequeR Hz 5k 7 k 10k 12 15k r 2 3 4 5...

Страница 113: ...Radio Com di o n 2 1 0 _ 2 3 4 5 8 7 6 5 4 3 2 0 Date 50 100 400 RIGHT CHANN EL 25 MODUL ATION I V I I FREQU ENCY RESPON SE DISTOR TION 1k Frequen cy Hz Sk Right 25 7 k 10k 12 15k 2 1 0 dB 1 2 3 4 5 8...

Страница 114: ...on _ _ _ _ _ _ _ _ Date _ _ _ _ _ _ _ _ _ Separation Left into Right 50 Modulation Separation Right into Left 50 Modulation r 50 EQUIPMENT PERFORMANCE MEASUREMENTS TABULATION OF DATA 100 400 Separatio...

Страница 115: ...Com J StatiOI _ _ _ _ _ _ _ _ Date _ _ _ _ _ _ _ _ _ 0 5 10 15 20 25 30 35 40 45 50 60 50 100 f SEPA RATIO N LEFT INTO RIGHT 50 MODU LATIO N 400 lk Freque ncy Hz 0 to 5 years After 5 years 0 Separa t...

Страница 116: ...SteamPoweredRadio Com a ca _ _ _ _J 0 5 10 15 20 25 rn 30 35 40 45 50 60 50 100 r all R A RIGHT INTO LEFT 50 MODULA TION 400 Frequenc y Hz 1k 0 to 5 years After 5 years Sk ghl Separatio n 7 k 10k 12 1...

Страница 117: ...Modulat ion Incident al Phase Modulat ion Same as above expresse d in Radians No Specific ation 95 L R Modulat ion Subchan nel to Main Crosstal k No Specific ation 95 L R Modulat ion 50 EQUIPM ENT PE...

Страница 118: ...WIIIII Stci l ALSO _ L R to L R Date _ _ _ _ _ _ _ _ _ INCIDENTAL PHASE MODULATION L R 95 MODULATION Crosstalk o r T 5 r t 4 J J 10 r r 1 15 20 25 dB 30 351 40 I I I I I I I II I 45 50 60 50 100 400 l...

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