Nautel FM10 Technical Instructions Download

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10 000 WATT FM BROADCAST TRANSMITTER

FM10

Page 7-7

15 July 1997

Table 7-5 Test Voltages - Control/Monitor PWB

LOCATION

DESCRIPTION

TEST VOLTAGE

J1-2

Temp (IPA) Ref

8.5 - 11.5 VDC @ T (Ambient) = 25

J5-1

Temp (A) Ref

8.5 - 11.5 VDC @ T (Ambient) = 25

J5-2

Temp (B) Ref

8.5 - 11.5 VDC @ T (Ambient) = 25

J5-3

Temp (C) Ref

8.5 - 11.5 VDC @ T (Ambient) = 25

J5-4

Temp (D) Ref

8.5 - 11.5 VDC @ T (Ambient) = 25

J5-5

Temp (E) Ref

8.5 - 11.5 VDC @ T (Ambient) = 25

J5-6

Temp (F) Ref

8.5 - 11.5 VDC @ T (Ambient) = 25

J5-7

Intermediate RF Level (A)

See Table 5-6

J5-8

Intermediate RF Level (B)

See Table 5-6

J5-9

Intermediate RF Level (C)

See Table 5-6

J5-10

Intermediate RF Level (D)

See Table 5-6

J5-11

Intermediate RF Level (E)

See Table 5-6

J5-12

Intermediate RF Level (F)

See Table 5-6

TP1

Reflected Power Level

0.0 VDC @ 1.0 SWR

TP2

PA Volts Control

See Table 5-6

TP3

+24V (Unreg)

21 – 28 VDC

TP4

IPA Volts Control

See Table 5-6

TP5

IPA Forward Power Level

See Table 5-6

TP6

Forward Power Level

11.0V @10kW

TP7

RF Drive Level

See Table 5-6

TP8 -

TP11

Ground

0.0 VDC

U8-5

12.2 VDC

U8-7

6.8VDC @ U8-1 = 5 VDC

6.6VDC @ U8-1 = 0 VDC

U8-8

2.8V

U13-9

High AC Power Threshold

10.2VDC @ U13-14 = 5 VDC

U13-10

Low AC Power Threshold

7.3 VDC

U22-4

Low Battery Threshold

4.1 VDC

U22-9

1.4 VDC

U36-5

IPA High Reflected Power Threshold

See Table 5-6

U36-7

IPA High Forward Power Threshold

See Table 5-6

U42-6

Low RF Drive Threshold

4.3 VDC

U42-9

High RF Drive Threshold

7.4 VDC

Summary of Contents for FM10

Page 1: ...SA 04401 Nova Scotia Canada B0J 3J0 Phone 207 947 8200 Phone 902 823 3900 Fax 207 947 3693 Fax 902 823 3183 ISO 9002 REGISTERED ISO 9001 REGISTERED Copyright 2002 NAUTEL All rights reserved TECHNICAL...

Page 2: ...July 1997 Contents 2 0 15 July 1997 Contents 3 0 15 July 1997 Contents 4 0 15 July 1997 Contents 5 0 15 July 1997 Contents 6 0 15 July 1997 Contents 7 0 15 July 1997 Contents 8 1 15 November 1999 Cont...

Page 3: ...7 6 4 0 15 July 1997 6 5 0 15 July 1997 6 6 0 15 July 1997 6 7 0 15 July 1997 6 8 0 15 July 1997 6 9 1 15 November 1999 6 10 1 15 November 1999 6 11 0 15 July 1997 6 12 0 15 July 1997 7 1 0 15 July 19...

Page 4: ...7 10 3 0 15 July 1997 10 4 Blank SD 1 0 15 July 1997 SD 2 2 01 October 2002 SD 3 0 15 July 1997 SD 4 2 01 October 2002 SD 5 0 15 July 1997 SD 6 0 15 July 1997 SD 7 0 15 July 1997 SD 8 0 15 July 1997 S...

Page 5: ...g PINCH CASUALTY S NOSE AND EXHALE TWO SLOW BREATHS INTO CASUALTY Figure 5 h REMOVE YOUR MOUTH and check for breathing Figure 6 i CONTINUE GIVING ONE BREATH EVERY FIVE SECONDS without interruption If...

Page 6: ...and do not handle affected areas more than necessary 7 Do not apply salves grease etc to burns 8 Do not remove burned clothing which adheres to the skin or break blisters 9 Cover the burn with a dry...

Page 7: ...until the patient is breathing on his own or until medical aid arrives Survival rates can be quite high if cardio pulmonary resuscitation is started within 3 to 4 minutes of the injury being received...

Page 8: ...YLLIUM OXIDE ceramic which is non hazardous during normal device operation and under normal device failure conditions These devices are specifically identified in the equipment manual s parts list s D...

Page 9: ...ping costs incurred in returning the part assembly to the Customer 5 Warranty replacement parts and repair which are provided under items 2 or 3 shall be guaranteed for a period of ninety days from da...

Page 10: ...d up to thirteen months from shipment repair and exchange of modules is at no charge to the customer When the warranty has expired a charge of 80 of the list price for all exchanged modules is made If...

Page 11: ...2 1 2 1 2 LIGHTNING PROTECTION 2 2 2 1 2 1 Station Reference Ground 2 2 2 1 2 2 AC Power Source 2 2 2 1 2 3 Antenna Feed Cable 2 2 2 1 2 4 Antenna Tower 2 2 2 1 2 5 External Control Monitor Wiring 2...

Page 12: ...S REQUIRED BUT NOT SUPPLIED BY NAUTEL 2 7 2 1 13 1 Surge Protector Panel 2 7 2 1 14 TEST EQUIPMENT AND SPECIAL TOOLS 2 7 2 2 NON TECHNICAL PRE COMMISSIONING 2 8 2 2 1 ACCEPTANCE OF SHIPMENT 2 8 2 2 2...

Page 13: ...9 REMOTE OPERATION 4 2 4 10 COMMISSIONING PROCEDURES 4 3 4 10 1 CONTROL MONITOR BACKUP BATTERY INSTALLATION 4 3 4 10 2 EXCITER SETUP 4 3 4 10 3 PRELIMINARY SETTINGS 4 4 4 10 4 INITIAL TURN ON 4 4 4 1...

Page 14: ...M 5 21 5 11 5 HIGH AC PWR ALARM 5 21 5 11 6 LOW AC PWR ALARM 5 22 5 11 7 REFLECTED POWER ALARM 5 22 5 11 7 1 Reflected and Forward Power Zero Watts 5 22 5 11 7 2 Reflected Power Zero Watts and Forward...

Page 15: ...6 3 7 3 Charging Relay Control 6 4 6 3 7 4 PA Volts Monitor 6 5 6 3 7 4 1 High PA Volts 6 5 6 3 7 4 2 Low PA Volts 6 5 6 3 7 5 IPA Volts Monitor 6 5 6 3 7 5 1 High IPA Volts 6 5 6 3 7 5 2 Low IPA Vol...

Page 16: ...20 Low Transmitter Forward Power 6 11 6 5 2 21 Transmitter Reflected Power 6 12 6 5 2 21 1 Refld Pwr Less Than 100 Watts 6 12 6 5 2 21 2 Refld Pwr Greater Than 440 Watts 6 12 6 5 2 21 3 Refld Pwr Gre...

Page 17: ...PATTERNS 9 1 9 4 WIRE COLORS 9 1 9 5 WIRING LIST PROVIDED 9 1 10 ELECTRICAL SCHEMATICS 10 1 INTRODUCTION 10 1 10 2 COMPONENT VALUES 10 1 10 3 GRAPHIC SYMBOLS 10 1 10 4 LOGIC SYMBOLS 10 1 10 5 REFERENC...

Page 18: ...c RF Power Stage Sheet 2 of 2 SD 7 SD 8 Electrical Schematic RF Combiner Final Filter NAF79 SD 8 SD 9 Electrical Schematic Control Monitor Function SD 9 SD 10 Electrical Schematic Control Display PWB...

Page 19: ...Output or Reduced RF Output 5 17 5 6 Factory Determined Measurements for Critical Parameters 5 28 7 1 Test Voltages Waveforms Switching Power Supply 7 2 7 2 Test Voltages Waveforms Power Supply Contr...

Page 20: ...Supplies 9 8 9 4 Wiring List NAC66 01A or NAC66 03 Control Monitor Panel 9 9 9 5 Wiring List NAS43 02 Low Voltage Power Supply 9 10 9 6 Wiring List Fan Plate Assembly 182 7130 9 11 9 6A Wiring List Fa...

Page 21: ...ly tree for this transmitter is depicted in figures 8 1A and 8 1B It identifies the major assemblies and shows their hierarchical assembly relationship It also identifies the reference designation ass...

Page 22: ...armonics 80dB relative to carrier Spurious Outputs 80dB relative to carrier Asynchronous AM Noise 65dB Synchronous AM Noise Better than 50dB AC Power Source all voltages are phase to phase 1 208 VAC 3...

Page 23: ...larm 1 Interlock Open Alarm 2 AC Power Alarm 3 High Temperature Alarm 4 Fan Fail Alarm 5 Low UPS Battery Alarm 6 High Reflected Power Alarm 7 PA Module Fail Alarm 8 IPA RF Exciter Fail Alarm Environme...

Page 24: ...Multimeter 3 1 2 digit AC and DC volts 10M ohms input ohms and amps 0 5 accuracy Beckman 310 testing and maintenance Oscilloscope Tektronix Model 2245A testing and maintenance Modulation Monitor Belar...

Page 25: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 1 5 15 July 1997 Figure 1 1 FM10 10 000 Watt FM Broadcast Transmitter...

Page 26: ...ch pounds 0 665 Newton Meters Installing power MOSFETS Manufactured by or available from Nautel Table 1 4 Glossary of Terms TERM DESCRIPTION Intermediate Power Amplifier IPA A module within the transm...

Page 27: ...1 1 3 1 Fans in each RF power module draw cooling air through two large filters in the upper rear of the transmitter circulate it through the modules and exhaust it as a low velocity stream through o...

Page 28: ...al cable should be connected directly to the station reference ground where it enters the building The centre conductor and the shield of the feed cable should pass through a ferrite toroid positioned...

Page 29: ...itor PWB A14 as the exciter interlock RF mute control If the exciter has an automatic level control ALC circuit it should be enabled if possible 2 1 6 SAFETY INTERLOCK The external safety interlock ci...

Page 30: ...tor PWB A14 The terminal of each control input may be connected to TB2 15 which will allow activation of the input by momentarily connecting the appropriate terminal to ground 2 1 8 EXCITER INTERLOCK...

Page 31: ...rcuits will require activation of the PROTECT RESET control before the RF output is restored 2 1 10 1 IPA RF Fail Alarm The IPA RF Fail Alarm output is applied to the IPA RF FAIL ALARM terminal TB2 1...

Page 32: ...B2 7 of the control monitor PWB A14 When the interlock circuit is intact short circuit the output is an open collector When the interlock is open the INTLK OPEN ALARM output switches to a current sink...

Page 33: ...tter shipment 2 1 12 2 Ancillary Parts An ancillary parts kit is provided with each transmitter These parts are provided to ensure initial installation is not delayed because of a lost or damaged part...

Page 34: ...lly disassembled transmitters should be placed in their final location prior to completing assembly 2 2 4 INSTALLATION OF EXTERNAL CONTROL MONITOR WIRING Connect wiring originating from the remote con...

Page 35: ...et e Locate three black 2 AWG wires 305 306 and 307 that will be attached to the power transformer A1T1 noting they are tyrapped together at the left hand side of the power supply compartment when vie...

Page 36: ...f the transmitter s Replace the power supply air blocker using the hardware retained in step c Do not operate the transmitter with the power supply air blocker removed Table 2 1 Power Transformer Wire...

Page 37: ...POWER MODULE INSTALLATION Install the IPA and RF power modules as follows a Remove the upper rear panel noting there is a safety ground wire connected to it Temporarily remove this wire to allow pane...

Page 38: ...s tabulated in table 2 3 o Do not install the upper rear panel at this time Access to the rear of the IPA module is required to connect the RF drive from the exciter If the exciter is located in the c...

Page 39: ...n the exciter mounting drawer slides noting it is installed from the front of the cabinet c Plug the exciter s AC power cord into the EXCITER AC ONLY receptacle noting it is located on the rear panel...

Page 40: ...oaxial cable that has been cut to the required length to the transmitter s RF output noting the RF feed cable termination point is located at the top of the RF output filter refer to figure MD 15 for...

Page 41: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 2 15 01 October 2002 Figure 2 1 External Input Output Interface...

Page 42: ...p of its associated primary winding identified in step c noting the tap for all three primary windings must be the same A B C D or E f Re install the lower panel on the rear of the cabinet using the a...

Page 43: ...er Transformer A1T1 NOMINAL AC VOLTAGE PRIMARY WINDING TAPS RMS PHASE TO PHASE 208 VOLTS 380 415 VOLTS H1 H2 H3 193 203 351 369 1 A 2 A 3 A 204 213 370 389 1 B 2 B 3 B 214 223 390 410 1 C 2 C 3 C 224...

Page 44: ...y detail CONTROL MONITOR FUNCTIONS CONTROLS AND INDICATORS 3 3 Table 3 2 lists the control monitor functions controls and indicators Refer to figure MD 1 to locate the control monitor panel A13 and th...

Page 45: ...minally 70 VDC to the input of the C PA switching power supply which provides the DC supply voltage for the C RF power amplifier module A4CB5 MD 5 PWR MDL D Applies unregulated B Volts nominally 70 VD...

Page 46: ...MD 6 FAN FAIL When turned on indicates one or more of the AC DC power supply s cooling fans has failed or is operating at an unacceptably low speed A5A1DS3 MD 6 PA VDC FAIL PWR SPLY A When turned on...

Page 47: ...rol circuitry Latching circuit maintains turned on state of local alarm LED when cause of alarm has been removed and operation has returned to normal PWR MDL B circuit breaker has been set to OFF A5A1...

Page 48: ...rol circuitry Latching circuit maintains turned on state of local alarm LED when cause of alarm has been removed and operation has returned to normal PWR MDL D circuit breaker has been set to OFF A5A1...

Page 49: ...s was too low for the control voltage level being applied to the common control circuitry Latching circuit maintains turned on state of local alarm LED when cause of alarm has been removed and operati...

Page 50: ...age being applied to power amplifiers in module B at 25 amperes A7A2F3 MD 2 PA VDC B Fuses regulated DC supply voltage being applied to power amplifiers 5 6 in module B at 25 amperes A7DS1 MD 2 B VDC...

Page 51: ...cates that PWR MDL E circuit breaker is closed and that B VDC is being applied to switching power supply E A11A2F1 MD 2 PA VDC F Fuses regulated DC supply voltage being applied to power amplifiers in...

Page 52: ...A26A1F6 MD 13 24 VDC P S FANS A Fuses unregulated 24 VDC being applied to the cooling air fans on fan assembly A27 at 3 0 amperes A26A1F7 MD 13 24 VDC P S FANS B Fuses unregulated 24 VDC being applie...

Page 53: ...ides a convenient ground reference point for DC supply voltage measurements A26A2R12 MD 14 ALARM THRSHLD ADJUST Adjusted to provide a shutdown signal and AC POWER PHASE ALARM display when an AC power...

Page 54: ...When turned on indicates temperature inside one or more RF power amplifier modules is was in excess of 85 C Appropriate POWER MODULE ALARM lamp s will also be on Latching circuit maintains turned on s...

Page 55: ...is was less than 80 of the optimum RF drive level for the RF power amplifier modules Latching circuit maintains turned on state when intermediate RF is restored to an acceptable level A13A1DS12 MD 7 M...

Page 56: ...ed off and remote status outputs will be switched to their non alarm state The alarm displays circuits associated with any control circuit that is in an alarm state when the switch is released will re...

Page 57: ...e RF output power decrease will follow a square law A13A1S10 MD 7 MD 8 RF ON Turns on RF power stage when pressed and released by setting control monitor PWB s on off circuitry to its on state A13M1 M...

Page 58: ...S1 MD 2 REPLACE BATTERY When turned on indicates the backup battery voltage is too low less than 4 1VDC A14R20 MD 2 REFLD PWR Adjusted to activate the reflected power monitoring circuits when the refl...

Page 59: ...ching power supplies A thru F and hence transmitter output will be inhibited due to the detection of low IPA output A14R151 MD 2 LOW RF Adjusted to set the forward power to RF power amplifier module s...

Page 60: ...SED IN TEXT A16A1C2 MD 10 RATIO Adj Adjusted to optimize directivity of the IPA Input Power Probe A16 at the desired operating frequency A25A2R2 MD 11 REFL PWR NULL Adjusted to null the voltage sample...

Page 61: ...F amplifier 4 has failed A13DS5 PA ALARM Q5 When turned on indicates RF amplifier 5 has failed A13DS6 PA ALARM Q6 When turned on indicates RF amplifier 6 has failed A13E1 E1 Normally installed enables...

Page 62: ...signations are listed Prefix with A18 A19 A20 A21 A22 or A23 for full reference designations Denotes there are six identical power amplifier output PWBs Prefix with A1 A3 A5 A7 A9 or A11 as appropriat...

Page 63: ...lly set to NORMAL Allows for tuning of RF amplifier 1 when set to TUNE A17A5S1 2 RF Output 2 Normally set to NORMAL Allows for tuning of RF amplifier 2 when set to TUNE A17DS1 PA VDC When turned on in...

Page 64: ...res all voltages to be turned off proceed directly to paragraph 4 3 2 If in remote control select RF OFF at the remote control site If the front of the transmitter is accessible press and release the...

Page 65: ...their loads while turned on The following should be routinely observed 4 7 1 The total DC current being drawn by the transmitter must not exceed the level specified as Total Current in the RF Power R...

Page 66: ...e transmitter will turn on in an RF off state d Install the three batteries in the control monitor PWB s battery holder ensuring they are properly oriented and fully engaged NOTE The control monitor P...

Page 67: ...ere taped to the front of the transmitter during packing for shipment It is recommended they be inserted into section 5 of this manual along with the blank table 5 6 that is provided The blank table 5...

Page 68: ...a FAN FAIL ALARM indication on power supply control panel A5 g Set the DC SUPPLY VOLTAGE switch to PA h The DC SUPPLY VOLTAGE meter indication should be zero volts DC i The DC SUPPLY CURRENT meter ind...

Page 69: ...ARD REFLECTED POWER meter s lower scale should be zero watts i Set the FORWARD REFLECTED POWER switch to FORWARD j Continue to press the OUTPUT POWER RAISE switch for a DC SUPPLY VOLTAGE meter indicat...

Page 70: ...r at scheduled intervals The recommended minimum time between scheduled maintenance visits is three months Local operating and environmental conditions may dictate more frequent visits and in remote s...

Page 71: ...th the power amplifier stage turned off The transmitter may remain connected to its antenna system for these procedures It is recommended the RF output level be reduced to a minimal value when the RF...

Page 72: ...ier module has one or more defective power amplifiers as indicated by the control monitor panel s PA FAIL ALARM lamp but it is still contributing to the transmitter s RF output it may be left on A red...

Page 73: ...h to FORWARD and read the FORWARD REFLECTED POWER meter indication b If the meter reading in step a is the normal operating level the alarm is probably false Press release the ALARM RESET switch c If...

Page 74: ...s operational by measuring the voltage between RF power module side of the fuse and ground The digital multimeter reading shall be the nominal PA Volts supply level NOTE If the voltage measured in ste...

Page 75: ...e MD 1 to locate the circuit breaker panel and then to figure MD 5 to locate a specific PWR MDL circuit breaker 5 7 1 RF POWER MODULE REMOVAL Remove a defective RF power module as follows NOTE PWR MDL...

Page 76: ...to be removed k Disconnect the PA volts connector 3 pin from J7 of RF power module to be removed l Disconnect the 9 pin connector from J8 of RF power module to be removed m Free the RF power module to...

Page 77: ...G303 RF coaxial cables must be obtained One to interconnect the output of the RF amplifier being tested to the input of the thruline wattmeter which is connected to the dummy load and One to interconn...

Page 78: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 5 9 01 October 2002 Figure 5 1 Test Interconnection for RF Power Module to be Tuned...

Page 79: ...pairs and an associated NORMAL TUNE switch in the following procedures Refer to table 5 4 to identify which components are associated with a power amplifier channel noting there are six channels If n...

Page 80: ...measure reflected power and determine the reflected power level of the RF drive as indicated by the input power meter Measurement should be less than 1 0 watt Table 5 4A PA Voltage Versus Frequency CA...

Page 81: ...down d Slide RF power module into its respective support tray from the front of the cabinet ensuring retaining studs at rear of the module s chassis pass thru the access holes in the support tray e E...

Page 82: ...y cables prefixed by W mating with the associated RF power module connectors J1 thru J6 When disconnecting cable mating connectors from J1 thru J6 or J9 on the rear of the RF power module to be remove...

Page 83: ...by attaching hardware hexagon nuts and washers on its rear retaining studs NOTE Ensure nuts are firmly tightened as the retaining studs provide a ground for the module d Connect the following mating...

Page 84: ...he DC voltage between A14U36 11 and ground Adjust LOW RF potentiometer A14R151 until the voltage recorded as Low RF Mon Adj A14U36 11 in table 5 6 is obtained j Remove external power supply from P27 1...

Page 85: ...y control PWB using the hardware removed in step b Reconnect the mating connector plugs with their associated connectors on the PWB d Turn on the MAIN POWER and all PWR MDL A thru F and IPA circuit br...

Page 86: ...formation MODULE RF DRIVE on and any one PA VDC FAIL PWR SPLY A thru F The RF drive level at the input to an RF power module has dropped to an unacceptable level and the associated power supply has be...

Page 87: ...trouble shooting information IPA TEMP on Temperature inside the IPA module has exceeded its preset threshold See paragraph 5 11 11 for trouble shooting information PA VDC FAIL PWR SPLY one or more of...

Page 88: ...amplifiers causing an unacceptable match at the combiner detected forward power level was too low for the PA supply voltage level being applied to the RF power modules the COMBINER MATCHING alarm lam...

Page 89: ...is necessary to check the control monitorPWB s intermediate RF level monitor circuitry refer to the control monitor PWB s service instruction manual and the trouble shooting data in section 7 of this...

Page 90: ...by pressing the ALARM RESET switch If the LOW AC PWR alarm lamp turns off and the AC PHASE alarm lamp turns on continue trouble shooting If not see paragraph 5 11 6 NOTE Random alarm occurrences can r...

Page 91: ...C PWR lamp was not caused by an AC phase alarm by pressing the ALARM RESET switch If the LOW AC PWR lamp turns off and the AC PHASE lamp turns on a phase loss may have occurred see paragraph 5 11 4 b...

Page 92: ...exist at the transmitter output a If an external reflected power meter is available verify its reading is similar to that on the control monitor panel b If the external reflected power meter s reading...

Page 93: ...probe A16 If necessary replace or repair any damaged connections cabling using suitable coaxial cable 50 ohm near 0 68 dielectric constant material 5 11 8 3 RF Drive Checks a Read the exciter s forwar...

Page 94: ...ce the IPA module with an operational RF power module as detailed in paragraph 5 8 b Trouble shoot the IPA module as detailed in the IPA module s service instruction manual 5 11 9 3 Control Monitor PW...

Page 95: ...air flow The transmitter s RF output should not be affected by this alarm nor should the IPA switching power supply be inhibited or tripped off by its associated PWR MDL circuit breaker Trouble shoot...

Page 96: ...cceptably low Compare the reading obtained in step a with the voltage recorded as PA VDC FWD PWR set to Assigned Level in table 5 6 If these readings do not coincide refer to the switching power suppl...

Page 97: ...tage recorded as IPA VDC in table 5 6 If these readings do not coincide refer to the switching power supply modules service instruction manual for replacement or repair instructions c Allow the system...

Page 98: ...or fan blockage b Check fan fuses A1F6 and A1F7 located on the low voltage power supply PWB A failed fuse will cause the two fans in a fan assembly to turn off AIR FILTERS 5 12 Air filters should be i...

Page 99: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 5 30 01 October 2002 Figure 5 2 Tuning Shelf Installation...

Page 100: ...______ VDC __________ VDC IPA VDC __________ VDC __________ VDC IPA CONTROL LEVEL A5A1TP9 __________ VDC __________ VDC A5A1TP11 __________ VDC __________ VDC IPA PDM CONTROL LEVEL A5A1TP16 __________...

Page 101: ...FWD PWR A14TB2 12 __________ VDC PA VOLTS MAX ADJ A14U4 3 __________ VDC HIGH REFLECTED POWER A14U6 3 __________ VDC LOW RF MON ADJ A14U6 8 __________ VDC FWD PWR MON ADJ A14U35 3 __________ VDC IPA H...

Page 102: ...54 9 VAC phase to phase for the B DC power supplies The X set is delta wound and it supplies the B volts 1 DC power supply The Y set is wye wound and it supplies the B volts 2 DC power supply The out...

Page 103: ...U2 The output voltage of U2 15 VDC is determined by the values of resistors R11 R12 and R14 6 3 4 1 2 24V Fan Supply FET source followers Q3 Q4 and their associated components comprise a circuit which...

Page 104: ...omparator will be more positive than the alarm reference voltage and U1A s output TP5 will be a current sink to ground R12 is adjusted to apply an alarm reference voltage that is just more positive th...

Page 105: ...intain a stable output voltage at the desired level 6 3 7 2 IPA Volts Control The IPA Volts Control signal J3 1 2 provided by the control monitor PWB A14 is a low level DC voltage which determines out...

Page 106: ...VDC alarm LED is turned on and 0 0 VDC is applied to the PA Volts Alarm output J11 4 which is applied to the control monitor PWB 6 3 7 5 IPA Volts Monitor The IPA Volts Sample output from IPA switchi...

Page 107: ...witch Momentarily pressing the LAMP TEST switch on the transmitter s control monitor panel will cause 0 0 VDC to be applied to the LED Test input J11 3 This turns on all alarm LEDs on the power supply...

Page 108: ...s comprised of six 330 watt RF power amplifiers The RF input from the intermediate RF drive splitter A15 is split again on power module interface PWB A13 to drive the six RF power amplifiers within th...

Page 109: ...onitor panel selects either forward or reflected power to be displayed on meter M1 6 5 2 CONTROL MONITOR PWB See figure SD 9 The control monitor PWB A14 determines and regulates the RF output of the t...

Page 110: ...ute the exciter s output the RF ON indicator LED will turn off the remote RF on status is disabled open circuit J6 6 will switch to ground RF On causing the low voltage power supply to remove the 24 V...

Page 111: ...ntrol J8 12 11 outputs in response to a fault Once the fault has been removed repaired the shutdown protection circuit must be reset manually by either momentarily pressing the PROTECTION RESET switch...

Page 112: ...l to the IPA module s forward power as sensed at the input of the intermediate RF drive splitter When the detected IPA fwd Pwr level falls below the low drive threshold the PA Volts Control output wil...

Page 113: ...H REFLD PWR alarm activates current sink 6 5 2 21 3Refld Pwr Greater Than 1200 Watts Should the detected reflected power level exceed 1200 watts the PA Volts Control and the IPA Volts Control outputs...

Page 114: ...er to the power supply control PWB s manual for schematic diagrams and detailed circuit description 7 2 3 LOW VOLTAGE POWER SUPPLY PWB Table 7 3 provides typical test voltages for the low voltage powe...

Page 115: ...72 VDC TP1 PA Volts 48 7 VDC P1 3 FET Gate Drive See Figure 7 1 P2 2 PA Volts Sample See Figure 7 2 A1E1 Switching FET Assy Output See Figure 7 3 5 0 s div 20 0 V div 0 0 VDC indicated as Gnd Figure 7...

Page 116: ...in Table 5 6 TP4 IPA B Volts Sample 4 6 VDC B Volts 72 VDC TP5 0 0VDC TP6 See Table 5 6 TP7 See Table 5 6 TP8 50kHz Square Wave See Figure 7 5 TP9 See Table 5 6 TP10 Ramp Peak Detect 2 2 2 6VDC TP11 S...

Page 117: ...4 8 2 5 VDC U28 8 2 5 VDC U29 8 2 5 VDC U30 8 2 5 VDC U32 8 2 5 VDC U33 8 2 5 VDC U24 10 2 5 VDC U28 10 2 5 VDC U29 10 2 5 VDC U30 10 2 5 VDC U32 10 2 5 VDC U33 10 2 5 VDC U34 10 2 5 VDC Table 7 3 Tes...

Page 118: ...0 VDC indicated as Gnd Figure 7 4 100kHz Oscillator Waveform 5 0 s div 1 0 V div 0 0 VDC indicated as Gnd Figure 7 5 50 kHz Square Wave Waveform 5 0 s div 1 0 V div Scale Centre 0 0 VDC Figure 7 6 50k...

Page 119: ...DC indicated as Gnd Figure 7 8 TP18 Waveform 5 0 s div 5 0 V div 0 0 VDC indicated as Gnd Figure 7 9 TP19 Waveform 5 0 s div 20 0 V div 0 0 VDC indicated as Gnd Figure 7 10 CR21 Cathode Waveform 5 0 m...

Page 120: ...0 Intermediate RF Level D See Table 5 6 J5 11 Intermediate RF Level E See Table 5 6 J5 12 Intermediate RF Level F See Table 5 6 TP1 Reflected Power Level 0 0 VDC 1 0 SWR TP2 PA Volts Control See Table...

Page 121: ...the identified table 8 4 2 WHEN REF DES IS KNOWN Locate the information for a part when the full reference designation is known as follows Enter the family tree depicted in figure 7 1 with the full re...

Page 122: ...bility during manufacture 8 6 6 X Y GRID COLUMN Ref Des Indexes for printed wiring boards PWB s or assemblies that contain PWB s with a high parts density have an X Y grid column This column contains...

Page 123: ...55 Cornell Dubilier Electronics Division Federal Pacific Electric Company 150 Avenue L Newark New Jersey 07101 15513 Data Display Products P O Box 91072 5428 West 104th St Los Angeles California 90009...

Page 124: ...Cinch Connectors 1501 Morse Avenue Elk Grove Village Illinois 60007 72982 Erie Technological Products Inc 644 West 12th Street Erie Pennsylvania 16512 74193 Heinemann Electric Company 2600 Brunswick...

Page 125: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 8 5 15 November 1999 This Page Intentionally Left Blank...

Page 126: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 8 6 15 November 1999 Figure 8 1 Family Tree FM10 10kW FM Broadcast Transmitter Sheet 1 of 2...

Page 127: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 8 7 15 November 1999 Figure 8 1 Family Tree FM10 10kW FM Broadcast Transmitter Sheet 2 of 2...

Page 128: ...3A1RV5 Varistor 200V RMS 75 Joules QI15 Z21L331 81483 A3A1RV6 Varistor 200V RMS 75 Joules QI15 Z21L331 81483 A3A1U1 Diode Power Rectifier 400V 90A UR20 1RKD91 04 81483 A3A1U2 Diode Power Rectifier 400...

Page 129: ...d 4 Pin 22AWG JU01 640433 4 09482 P4 Connector Size 13 9 5 Socket Contacts 182 5011 182 5011 37338 P5 Connector Size 13 9 5 Socket Contacts 182 5011 182 5011 37338 P6 Connector Size 13 9 5 Socket Cont...

Page 130: ...End 8 Pin 22AWG JU06 640433 8 09482 P52 Connector MTA Closed End 8 Pin 22AWG JU06 640433 8 09482 P53 Connector MTA Closed End 8 Pin 22AWG JU06 640433 8 09482 P54 Connector MTA Closed End 8 Pin 22AWG J...

Page 131: ...ble 182 8050 W31 182 8050 W31 37338 W32 Coaxial Cable RF Specify c Non Reparable 182 8050 W32 182 8050 W32 37338 W33 Coaxial Cable RF Specify c Non Reparable 182 8050 W33 182 8050 W33 37338 W34 Coaxia...

Page 132: ...installation USE CODE EXPLANATION Denotes item is a coaxial cable that is precisely cut to a frequency dependent length Carrier frequency of transmitter must be included when ordering replacement cabl...

Page 133: ...2 A2R4 Not Used A A2R4 Resistor Metal Film 2200 Ohms 5 2W RBP15 GS 3 2200 Ohms 75042 A3 Choke Strap Assembly 182 7008 01 182 7008 01 37338 A3R1 Resistor Metal Film 150K Ohms 1 1 4W RAC03 MF55D1503F 59...

Page 134: ...125V Shunt Tap Trip SD13 CD1B15DC00250270VDUCON 74193 CR1 Diode Power Rectifier 600V 1A QL07 1N4247 5M411 CR2 Diode Power Rectifier 600V 1A QL07 1N4247 5M411 CR3 Diode Power Rectifier 600V 1A QL07 1N...

Page 135: ...n 22AWG JU01 640433 4 09482 P2 Connector MTA Closed End 12 Pin 22AWG JU03 1 640433 2 09482 1 P3 Connector MTA Closed End 4 Pin 22AWG JU01 640433 4 09482 3 P3 Not Used S1 Switch Rotary Non shorting 2P6...

Page 136: ...N4938 E 2 27014 CR20 Diode General Purpose 200V 0 1A QAP29 1N4938 E 2 27014 CR21 Diode General Purpose 200V 0 1A QAP29 1N4938 E 2 27014 CR22 Diode General Purpose 200V 0 1A QAP29 1N4938 E 2 27014 CR23...

Page 137: ...1 1 4W RAB37 MF55D1002F E 4 59124 R20 Resistor Metal Film 3920 Ohms 1 1 4W RAB32 MF55D3921F F 5 59124 R21 Resistor Metal Film 3920 Ohms 1 1 4W RAB32 MF55D3921F F 5 59124 R22 Resistor Metal Film 332 O...

Page 138: ...tch Pushbutton Momentary PWB Mount SCP11 MP01 R0 2 C2 B E B 1 09353 S7 Switch Pushbutton Momentary PWB Mount SCP11 MP01 R0 2 C2 B E G 7 09353 S8 Switch Pushbutton Momentary PWB Mount SCP11 MP01 R0 2 C...

Page 139: ...0 Bulkhead JDP26 UG1094 U 02660 J7 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094 U 02660 J8 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094 U 02660 J9 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094 U...

Page 140: ...acitor Ceramic 0 001uF 10 200V CCG01 CKR05BX102KRV 56289 A1CR1 Diode Hot Carrier QK09 1N5711 50434 A1E1 Connector Quick Dis M 1 4 TAB PWB HX42 1266 91833 A1R1 Resistor Metal Film 1500 Ohms 1 1 4W RAB2...

Page 141: ...Bulkhead JDP26 UG1094 U 02660 J18 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094 U 02660 J19 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094 U 02660 J20 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094...

Page 142: ...1 CKR05BX102KRV 56289 A2CR1 Diode Hot Carrier QK09 1N5711 50434 A2R1 Not Used A2R2 Resistor Variable Film 500 Ohms 1 2W RW36 3339P 1 501 80294 A2R3 Resistor Metal Film 3300 Ohms 2 1 2W RAP11 RL20S332G...

Page 143: ...Channel QAP38 IRFP140 81483 Q4 Transistor Field Effect N Channel QAP38 IRFP140 81483 Q5 Transistor Field Effect N Channel QAP38 IRFP140 81483 Q6 Thyristor 25A 800V QS12 2N6509 04713 TB1 Terminal Bloc...

Page 144: ...C14 Capacitor Ceramic 0 1uF 10 100V CCG07 CKR06BX104KRV 56289 A C15 Not Used B C15 Capacitor Tantalum 1 0uF 10 50V CCP24 CSR13G105KM 56289 CR1 Not Used CR2 Not Used CR3 Not Used CR4 Diode Power Recti...

Page 145: ...W RAB25 MF55D1001F F 3 59124 R12 Resistor Metal Film 332 Ohms 1 1 4W RAB19 MF55D3320F F 3 59124 R13 Resistor Metal Film 100K Ohms 1 1 4W RAC01 MF55D1003F D 1 59124 R14 Resistor Metal Film 121 Ohms 1 1...

Page 146: ...ion exists for that item Refer to description and or the use code to determine which item variation is required for a specific installation Partial reference designation shown Prefix with A26A1 ref de...

Page 147: ...t PICO II FC09 251001 75915 F2 Fuse 1A 125V Fast PICO II FC09 251001 75915 F3 Fuse 1A 125V Fast PICO II FC09 251001 75915 J1 Header MTA 4 Square Posts 0 156 Centre JU20 640383 4 09482 J2 Header MTA 8...

Page 148: ...UTEL S JAN MIL OEM X Y OEM CODE DES AND DESCRIPTION PART NO PART NO GRID CODE U1 IC Operational Amplifier Dual UD02 LM258J 04713 XK1 Socket Relay 163 5003 163 5003 37338 XU1 Socket DIP 8 Socket Contac...

Page 149: ...this manual therefore detailed printed wiring patterns for printed circuit boards are not included WIRE COLORS 9 4 Every effort is made to manufacture the assemblies using wire that is the color tabu...

Page 150: ...P24 2 13 White 22 1 Conductor P14 Body P24 3 Shield Shielded P24 6 P1 3 14 White 22 P1 2 P26 8 15 White 22 P1 5 P26 6 16 Black 22 P1 7 P24 4 17 White 22 P1 10 P26 3 18 White 22 P59 5 P27 3 19 White 22...

Page 151: ...White 22 P1 6 P16 2 61 White 22 P1 1 P16 12 62 White 22 P3 3 P16 4 63 Black 22 P2 10 XA27TB1 1 64 White 22 P2 12 XA28TB1 1 65 White 22 P2 9 XA27TB1 2 66 Black 22 A27TB1 2 XA28TB1 2 67 Black 22 R1 3 P...

Page 152: ...te 22 B P27 8 E16 A 106 Black 22 B P27 7 A13M3 107 White 22 B P27 8 A13M3 108 Black 22 A13 Panel Hinge Ground Braid Sleeved A13 Panel A13 Panel Hinge Black 22 P28 1 P50 3 200 Conductor 22 1 Conductor...

Page 153: ...P49 3 Shield P32 1 P55 1 233 Conductor 22 1 Conductor P32 2 P55 6 Shield Shielded P32 5 P55 3 234 White 22 P32 6 P55 4 235 White 22 P32 7 P31 7 236 White 22 P32 8 P55 2 237 White 22 P32 9 P55 5 238 Wh...

Page 154: ...A10A2E5 278 White 10 P40 1 A11A2E3 279 White 10 P40 2 A11A2E4 280 White 10 P40 3 A11A2E5 281 White 10 P41 1 A12A2E3 282 White 10 TB1 1 A4CB1A Line 300 Black 2 163 8200 065 TB1 2 A4CB1B Line 301 Black...

Page 155: ...329 Black 6 A9E2 R1 4 330 Black 6 A10E2 R1 4 331 Black 6 A11E2 R1 4 332 Black 6 A12E2 R1 4 333 Black 6 Xmtr Ref Gnd Sta Ref Gnd 334 Black 2 163 8201 150 A14TB1 13 A10TB1 4 400 White 22 1 Conductor A14...

Page 156: ...DESTINATION CODE SIZE REMARKS J1 1 T1 Z1 1 Grey 14 J1 2 T1 Z2 2 Grey 14 J1 3 T1 Z3 3 Grey 14 J1 4 T1 S1 4 Grey 14 J1 5 T1 S0 5 Black 14 J1 6 T1 S2 6 Grey 14 J1 7 T1 A2 7 Grey 18 J1 8 T1 A2 8 Grey 18 J...

Page 157: ...S2A 3 P2 4 8 White 22 S2A 4 P2 9 9 Black 22 S2A 5 P2 5 10 White 22 S2A 6 P2 6 11 White 22 S2A 7 P2 11 12 White 22 S2A 8 P2 7 13 White 22 S2A W1 P2 12 14 White 22 P2 1 M2 ve 15 White 22 M2 ve Ground 1...

Page 158: ...XF2 Side U1 AC2 5 Grey 22 XF3 Side U1 AC3 6 Grey 22 TB1 4 XF4 Centre 7 Grey 18 TB1 6 XF5 Centre 8 Grey 18 U1 AC1 P2 4 9 Grey 22 U1 AC2 P2 2 10 Grey 22 U1 AC3 P2 1 11 Grey 22 U1 C1 ve 12 White 18 C1 ve...

Page 159: ...le 9 6 Wiring List Fan Plate Assembly 182 7130 SOURCE DESTINATION CODE SIZE REMARKS B1 ve TB1 1 Red 20 Lead of B1 B1 ve TB1 2 Blue 20 Lead of B1 B1 H E TB1 3 White 20 Lead of B1 B2 ve TB1 1 Red 20 Lea...

Page 160: ...er 1999 Table 9 6A Wiring List Fan Panel Assembly SOURCE DESTINATION CODE SIZE REMARKS B1 ve TB2 1 Red Lead of P57 B1 ve TB2 2 Black Lead of P57 B1 H E TB2 3 Blue Lead of B1 B2 ve TB2 1 Red Lead of P5...

Page 161: ...10 000 WATT FM BROADCAST TRANSMITTER FM10 Page 9 13 15 November 1999 This Page Intentionally Left Blank...

Page 162: ...ntacts A1J1 16 Pin Contacts P16 MTA 12 Socket Contacts A5A1J13 MTA 12 Pin Contacts P17 MTA 4 Socket Contacts A5A1J1 MTA 4 Pin Contacts P18 MTA 4 Socket Contacts A5A1J3 MTA 4 Pin Contacts P19 MTA 8 Soc...

Page 163: ...TA 8 Pin Contacts P52 MTA 8 Socket Contacts A5A1J17 MTA 8 Pin Contacts P53 MTA 8 Socket Contacts A5A1J18 MTA 8 Pin Contacts P54 MTA 8 Socket Contacts A5A1J19 MTA 8 Pin Contacts P55 MTA 8 Socket Contac...

Page 164: ...3 BNC W21P2 BNC A24J21 BNC W22P1 BNC A21J4 BNC W22P2 BNC A24J22 BNC W23P1 BNC A21J5 BNC W23P2 BNC A24J23 BNC W24P1 BNC A21J6 BNC W24P2 BNC A24J24 BNC W25P1 BNC A22J1 BNC W25P2 BNC A24J25 BNC W26P1 BNC...

Page 165: ...5J8 BNC W39P1 BNC To Exciter BNC W39P2 BNC A16J1 BNC W40P1 BNC A16J2 BNC W40P2 BNC A17J5 BNC W41P1 BNC A15J1 BNC W41P2 BNC A18J9 BNC W42P1 BNC A15J2 BNC W42P2 BNC A19J9 BNC W43P1 BNC A15J3 BNC W43P2 B...

Page 166: ...Contacts P51 MTA 8 Socket Contacts A5A1J17 MTA 8 Pin Contacts P52 MTA 8 Socket Contacts A5A1J18 MTA 8 Pin Contacts P53 MTA 8 Socket Contacts A5A1J19 MTA 8 Pin Contacts P54 MTA 8 Socket Contacts A5A1J...

Page 167: ...NC W4P1 BNC A18J5 BNC W5P1 BNC A18J6 BNC W6P1 BNC A18J7 3 Pin Contacts P35 3 Socket Contacts A18J8 9 Pin Contacts P5 9 Socket Contacts A18J9 BNC W41P2 BNC A19J1 BNC W7P1 BNC A19J2 BNC W8P1 BNC A19J3 B...

Page 168: ...2 BNC W32P1 BNC A23J3 BNC W33P1 BNC A23J4 BNC W34P1 BNC A23J5 BNC W35P1 BNC A23J6 BNC W36P1 BNC A23J7 3 Pin Contacts P40 3 Socket Contacts A23J8 9 Pin Contacts P10 9 Socket Contacts A23J9 BNC W46P2 BN...

Page 169: ...24J35 BNC W35P2 BNC A24J36 BNC W36P2 BNC A25J1 BNC P56 BNC A25J2 BNC P13 BNC A25J3 BNC P14 BNC A26A1J1 MTA 12 Pin Contacts A26P1 MTA 12 Socket Contacts A26A1J2 MTA 12 Pin Contacts P1 MTA 12 Socket Con...

Page 170: ...ibe two state logic inputs outputs which differ from those inputs outputs having only one distinct state or multiple states analog 10 6 1 TYPE OF INPUTS OUTPUTS On electrical schematics names used to...

Page 171: ...his section Enter Table 10 1 to with the Nautel nomenclature number and or the description to identify the appropriate figure number s 10 9 3 TITLE OF BLOCK When a functional block has not been assign...

Page 172: ...c AC DC Power Supply Sheet 2 of 2 Figure SD 4 Electrical Schematic Low Voltage Power Supply PWB NAPS09C 01 Figure SD 5 Electrical Schematic 3 Phase Monitor PWB NAPC60 03 Figure SD 6 Electrical Schemat...

Page 173: ...Figure SD 1 Electrical Schematic FM10 FM Broadcast Transmitter Overview Page SD 1 15 July 1997...

Page 174: ...Figure SD 2 Electrical Schematic AC DC Power Supply Sheet 1 of 2 Page SD 2 15 July 1997...

Page 175: ...Figure SD 3 Electrical Schematic AC DC Power Supply Sheet 2 of 2 Page SD 3 15 July 1997...

Page 176: ...Figure SD 4 Electrical Schematic Low Voltage Power Supply PWB NAPS09C 01 Page SD 4 15 November 1999...

Page 177: ...Figure SD 5 Electrical Schematic 3 Phase Monitor PWB NAPC60 03 Page SD 5 15 July 1997...

Page 178: ...Figure SD 6 Electrical Schematic RF Power Stage Sheet 1 of 2 Page SD 6 15 July 1997...

Page 179: ...Figure SD 7 Electrical Schematic RF Power Stage Sheet 2 of 2 Page SD 7 15 July 1997...

Page 180: ...Figure SD 8 Electrical Schematic RF Combiner Final Filter NAF79 Page SD 8 15 July 1997...

Page 181: ...Figure SD 9 Electrical Schematic Control Monitor Function Page SD 9 15 July 1997...

Page 182: ...Figure SD 10 Electrical Schematic Control Display PWB NAPD05 01A Page SD 10 15 July 1997...

Page 183: ...depict the location of electrical components and show assembly outline detail Where appropriate dimensional information will be included 11 3 1 When a module assembly is the subject of its own assembl...

Page 184: ...Power Supply Control Panel Figure MD 7 Assembly Detail NAC66 01A or NAC66 03 Control Monitor Panel Figure MD 8 Assembly Detail NAPD05 01A Control Display PWB Figure MD 9 Assembly Detail NAI07 Interme...

Page 185: ...Figure MD 1 Assembly Detail FM10 FM Broadcast Transmitter Front View Page MD 1 15 July 1997...

Page 186: ...Figure MD 2 Assembly Detail FM10 FM Broadcast Transmitter Rear View Page MD 2 15 July 1997...

Page 187: ...Figure MD 3 Assembly Detail NASR92 02 and 03 AC Power Supply Assemblies Page MD 3 15 November 1999...

Page 188: ...igure MD 4 Assembly Detail 3 Phase Rectifier Assembly 182 7150 and 182 7150 01 Page MD 4 15 July 1997...

Page 189: ...Figure MD 5 Assembly Detail NAG02 01 NAG02 02 Circuit Breaker Panel Page MD 5 15 July 1997...

Page 190: ...Figure MD 6 Assembly Detail NAC76 Power Supply Control Panel Page MD 6 15 July 1997...

Page 191: ...F Figure MD 7 Assembly Detail NAC66 01A or NAC66 03 Control Monitor Panel Page MD 7 5 November 1999...

Page 192: ...Figure MD 8 Assembly Detail NAPD05 01A Control Display PWB Page MD 8 15 July 1997...

Page 193: ...Figure MD 9 Assembly Detail NAI07 Intermediate RF Drive Splitter Page MD 9 15 July 1997...

Page 194: ...Figure MD 10 Assembly Detail NAFP68 IPA Input Power Probe Page MD 10 15 July 1997...

Page 195: ...Figure MD 11 Assembly Detail NAF79 RF Combiner Filter and NAFP64 RF Power Probe Page MD 11 15 July 1997...

Page 196: ...Figure MD 12A Assembly Detail NAS43 02 Low Voltage Power Supply Page MD 12A 15 July 1997...

Page 197: ...Figure MD 12B Assembly Detail NAS43 02A Low Voltage Power Supply Page MD 12B 15 July 1997...

Page 198: ...Figure MD 13 Assembly Detail NAPS09C 01 Low Voltage Power Supply PWB Page MD 13 15 November 1999...

Page 199: ...Figure MD 14 Assembly Detail NAPC60 03 3 Phase Monitor PWB age MD 14 15 July 1997...

Page 200: ...Figure MD 15 Dimensional Information FM10 10 000 Watt FM Broadcast Transmitter Page MD 15 15 July 1997...

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Nautel FM10, Technical Instructions

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