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Summary of Contents for Skanti TRP 5000

  • Page 1: Table Of Contents

    TRP 5000 INSTRUCTION MANUAL CONTENTS Page INTRODUCTION 1 - 1 OPERATING INSTRUCTIONS 2 – 1 2 – 1 Distress Operation on 2182 kHz 2 – 1 Tuning to 2182 kHz 2 – 2 Tuning to a Frequency Other than 2182 kHz 2 –...
  • Page 2 TRP 5000 INSTRUCTION MANUAL CONTENTS Page SIMPLE SERVICE 6 - 1 6 - 1 Incorrect Operation 6 – 1 Battery 6 – 1 Checking the Antenna Tuning 6 – 1 Using the CHECK SWITCH 6 - 2 Replacement of Fuses...
  • Page 3 LIST OF ILLUSTRATIONS Page Front panel and operating controls PROM-types which can be installed in the MEMORY /238\ Drilling plan for mounting of TRP 5000 3-20 TRP 5000 cabinet, standard version 3-21 TRP 5000 cabinet, optional terminal strips installed 3-22...
  • Page 4 /262\ Driver and Grid Voltage Stabilisers 8-105 /264\ input Voltage Sensor 8-107 /265\ P 5001 AC Power Pack Wiring Diagram 8-109 /266\ LT-stabilisers 8-111 /267\ HT-rectifiers 8-113 /268\ Driver and Grid Voltage Stabilisers 8-115 TRP 5000 Cabinet Wiring 8-116 Terminal Strip A 8-117...
  • Page 5: Introduction

    1.6-4 MHz coastal telephone band and in the maritime mobile short wave bands between 4 and 27.5 MHz. In addition the TRP 5000 provides facilities for radiotelegraph and telex transmission and reception...
  • Page 6 1 - 1...
  • Page 7 1 - 2...
  • Page 8: Operating Instructions

    Operating Instructions Distress Operation on,2182 kHz Set controls as fellows: SUPPLY to TRANSMIT BANDs to 2182 kHz VOLUME clockwise SENSITIVITY fully clockwise MODE to TRANSMIT ALARM Press and release ALARM START The alarm signal is now transmitted for approx. 45 seconds and may be monitored in the handset earpiece.
  • Page 9 2 - 1...
  • Page 10: Tuning To A Frequency Other Than 2182 Khz

    Tuning to a Frequency Other than 2182 kHz Set SUPPLY switch to TRANSMIT. 30 seconds after switching on the transmitter is ready for operation, Set BAND switch to any band except 2182 kHz Turn DIMMER control fully clockwise If FREQUENCY NO display does not show zero, clear display using C key of keyboard.
  • Page 11 2.4.2. The POWER switch has six positions LOW POWER Transmitter is keyed from handset key, morse key, or SIMPLEX telex equipment dependent on mode of operation. Receiver is muted while transmitting. Transmitter can be driven to approx. 1/20 Of full output power.
  • Page 12 2 - 3...
  • Page 13 2.4.4 The ALARM START push-button is used to start the alarm generator after the MODE switch has been turned to the TRANSMIT ALARM position. The push-button is depressed and released and the alarm signal will be transmitted for approx. 45 seconds. The push-button is also used for starting the alarm generator in the TEST ALARM position.
  • Page 14 2 – 4...
  • Page 15 2.4.10 The CHECK SWITCH is not normally operative. Pulling the switch knob out will switch the ANTENNA CURRENT meter to read the voltage or current selected with the switch. When released, the knob will return to its original position. The switch has eight positions: LEVEL Check of anode AG voltage swing Check of anode DC voltage...
  • Page 16 2 - 5...
  • Page 17: Installation

    Antennas and earth connections must be installed with the greatest care, especially where duplex telephony is desired. Types of Installation The TRP 5000 radiotelephone may be powered from either a 24V battery or from 110/115/120/220/230/240V-AC mains. The TRP 5000 is composed of the following units:...
  • Page 18: Earth Connections

    A mains switch and fuses are to be provided in the supply leads. External fuse ratings are listed in Table 3.1. Power Pack Supply Voltage External Fuses P 5000 P 5001 110V 115V 50-60 120V P 5001 220V 230V 50-60 240V Table 3.1 3.4.1...
  • Page 19 3 – 2...
  • Page 20: Antennas

    3.5.1.2 Wooden Ships: From the transmitter earth terminal a 100x0.5 mm copper strap is run, preferably uninterrupted, to an earth bolt welded to an earth plate having a minimum area of 1 m2 mounted under the water line. Should it, however, be necessary to break the copper strap, for example to pass through a deck, two 1/2"...
  • Page 21 3 – 3...
  • Page 22 Like wise in order to minimise duplex noise, every other electric installation such as cable braiding (screens) and instruments should be earthed effectively, and the instruments in question should be fitted with noise-interference suppression devices. The Antennas should be suspended well in the clear, away from objects whose influence on the antennas may vary, such as derricks etc.
  • Page 23: Remote Speaker

    If a long coaxial cable is used in order to separate receiver and transmitter antennas it wilt often be advantageous to insert an impedance matching transformer at the antenna end of the coaxial cable. While the receiver input impedance is always 50 ohm at frequencies above 4 MHz, the receiver is normally supplied with a high impedance input at frequencies below 4 MHz.
  • Page 24 Input Terminal strip C, shown on page 3-25, is to be connected to the Exciter. Output Terminal Strip D, shown on page 3-26, is intended to be connected to the Transmitter Power Amplifier and can be used for example where it is desired to control an ATU. The corresponding socket in the T5000 is only mounted and wired on special order, but a BAND switch wafer which can be wired to give the BAND position is always supplied as an integral part of the Transmitter Power Amplifier.
  • Page 25 3 - 6...
  • Page 26: Memory

    3.11 Programming of MEMORY /238\, General 3.11.1 The building block of the memory, located on printed circuit board /238\ , is the Programmable Read Only Memory, in short PROM. A PROM is not re-programmable, because programming a bit position is like blowing a fuse.
  • Page 27 3 - 7...
  • Page 28: Ordering Programmed Prom's

    3.11.5 Information about the transmitting mode of every Frequency No. in use must be stored in the memory, whether it is a radiotelephone frequency (A3A,A3J, orA3H)or a wireless telegraph frequency (Al, A2H, or Fl). 3.11.6 Programming Frequency No. zero can be done in two ways. If it is convenient that this Frequency No.
  • Page 29 3.12.3 Now the proper BAND corresponding to the transmitting frequency is to be found. If it is a coastal telephone frequency paragraph 3.11.4 describes what to do- The encoding of the different BAND’s is shown in table 3.12.2. BAND Code 0000 0001 0010...
  • Page 30 3 - 9...
  • Page 31 3.12.6 Each of the four least significant digits of the synthesiser frequency ("100 kHz", "10 kHz", "l kHz", and "100 Hz") are encoded as follows: Number Code 1001 1000 0111 0110 0101 0100 0011 0010 0001 0000 Table 3.12.5 3.12.7 The most significant digit of the synthesiser frequency ("l MHz") is encoded as follows.
  • Page 32 3 - 10...
  • Page 33 3.12.10 Example 1: Assume that the telex frequency 4170.0KHz is to be programmed at Frequency No. 83. The input address can be found from table 3.12.1: Input address = 83-64 = 19 According to paragraph 3.12.9 the Control bit is set to 1 According to table 3.12.2: BAND = 4 MHz Code = 1000...
  • Page 34 3 – 11...
  • Page 35 Example 2: Assume that a radio telephone frequency 3550.0KHz is to be programmed at Frequency No. 228. The input address can be found from table 3.12.1: Input address = 228-224 = 4 According to paragraph 3.12.9 the Control bit is set to 1 According to table 3.11.2 and table 3.12.2: BAND = H,...
  • Page 36 3.12.11 When the three PROM’s are to be installed in the MEMORY /238\ make sure that they are mounted in the correct column: Column Frequency No. (both included) 0- 31 32- 63 64- 95 96-127 128-159 160-191 192-223 224-255 Table 3.12.9 3.12.12 Also take care that PROM-A is mounted in the socket marked with an A, PROM-B in socket B, and PROM-C ;n socket C.
  • Page 37 3 - 13...
  • Page 38: Instruction For Use Of Programming Iinit /241

    3.13 Instruction for use of PROGRAMMING UNIT /241\ 3.13.1 Three sockets are located in the PROGRAMMINGUNIT. From MEMORY /238\ the three PROM’s in the column No. found from table 3.12.9 are moved to board /241\ and mounted in these three sockets. Take care that the one placed in socket A on /238\ is mounted in the socket marked with an A, socket B in socket B, and socket C in socket C.
  • Page 39 3 – 14...
  • Page 40: Programming Unit

    3.13.14 Now activate the red pushbutton. 3.13.15 If the programming was done successfully the lamp of the red push button will now light and the Pin is moved to the next hole. 3.13.16 If the programming was not done successfully, the red push button must be activated repeatedly until the lamp is lit.
  • Page 41 3 - 15...
  • Page 42 3.13.25 A self adhesive sticker should be placed on the package of each PROM indicating in which column and socket (A, B, or C) it is to be mounted. 3.13.26 Programming procedure step by step Calculate for each Frequency No. the synthesiser frequency from the transmitting frequency as shown in table 13.12.4, find the correct BAND (for a coastal telephone frequency table 3.11.2 is used), and decide whether it is to be a radiotelephone frequency (RT) or a radiotelegraph...
  • Page 43 Push and keep down during step 13 the grey pushbutton. Activate the red pushbutton. Move the Programming Pin to the other hole and repeat the steps 12 and Go back to step 4 and repeat through to step 8 Turn off the Programming Unit. Place the Programming Pin in its holding clips.
  • Page 44 3.14.2 Band’s A to H The configuration is basically an L-network, the series inductance of which consist of may consist of variometer -A-.The rotor and stator of variometer can be used on the lower frequencies, giving a high value of inductance.
  • Page 45 4. Set CHECK SWITCH to LEVEL and pull the knob while pressing the TUNE button. Observe Level-reading on meter. Reading should be as near 3 as possible but never above. 5. Set SUPPLY switch to STAND BY and adjust Level by selecting appropriate tab settings on wafers 1 to 9 (refer to sections 3.14.2 and 3.14.3).
  • Page 46 MOUNTING OF TRP 5000 3 – 21...
  • Page 47: Trp 5000 Cabinet, Standard Version

    TRP 5000 CABINET, STANDARD VERSION...
  • Page 48 3 – 22...
  • Page 49 TRP 5000 CABINET, ALL OPTIONAL TERMINALS STRIPS INSTALLED 3 - 23...
  • Page 50: Terminal Strip A

    TRP 5000 CABINET WIRING TERMINAL STRIP A (mounted on cabinet back wall) Blue be Beige bk Black bn Brown Green or Orange Pink Slate (grey) Violet White Yellow tt transparent Note 1: Max cable length Minimum to battery conductor size...
  • Page 51: Terminal Strip B

    TRP 5000 OUTPUT TERMINAL STRIP B OPTIONAL (Terminal strip to be mounted on cabinet back wall) 3 – 24...
  • Page 52: Terminal Strip C

    TRP 5000 INPUT TERMINAL STRIP C OPTIONAL (Terminal strip to be mounted on cabinet back wall)
  • Page 53 3 - 25...
  • Page 55: Installation Of External Antenna Relay

    Installation of external antenna relay for integral receiver (simplex one antenna installation) or extra receiver. 3 – 27...
  • Page 61: T 5000 Tuning Chart

    T 5000 TUNING CHART Ship : ________________________ Harbour: ___________________________________ Technician : Date: T 5000 serial no.: ________ Supply voltage : V DC/AC-50/60Hz Antenna: _______________________ CHECK SWITCH readings are taken with POWER switch in position FULL POWER DUPLEX and MODE switch in position A3J CHECK TUNE TUNE button...
  • Page 62 992 230 0 2 3 - 33...
  • Page 63: Programming Work Sheet

    PROGRAMMING WORK SHEET. Transmitting Frequency Freq. Band Mode Synthesizer Frequency (KHz) Correction (KHz) Frequency (KHz) 992 221 71 3 - 34...
  • Page 64: Technical Data

    4. Technical Data Modes of operation Duplex, semi-duplex and simplex A3A, A3H, A3J, and Fl. Semi-duplex and simplex Al and A2H. At 2182 kHz A3H simplex only Power Output Al, A2H, A3A, and A3J: 400 watts Peak Envelope Power Fl: 250 watts with reduction to less than 20 watts.
  • Page 65 4 - 1...
  • Page 66: Technical Description

    Technical Description Mechanical 5.1.1 The equipment consists of four main units: Transmitter Power Amplifier, Power Pack, Exciter and Receiver. The Transmitter Power Amplifier is built on an alodine treated aluminium chassis. The other units are built on zinc plated and passivated iron chassis. 5.1.2 The cooling of the two P.A.
  • Page 67: Circuit Summary, Exciter E 5000

    Circuit Summary, Exciter E 5000 5.3.1 The circuit diagram is divided into a wiring diagram on page 8-67 showing the Motherboard /231\ and the interconnections between the printed circuit boards, of which the Exciter is composed, and circuit diagrams of the individual circuit boards. The block diagram on page 8 - 60 illustrates the operation of the Exciter.
  • Page 68: Circuit Description, Exciter E 5000

    The Side-step principle is performed as follows. Assume that the output frequency of the Frequency Synthesiser is (a.b.c.d.,e) KHz. Th is frequency is divided by (abcd + 1)e times and (abcd) * (10-e) times, so that the division ratio on the average is: ((abcd + 1)* e + (abcd)*(10 - e)) = abed.e.
  • Page 69: Rf Translator

    5.4.2 /233\ RF TRANSLATOR The lst. mixer converts the 1.4 MHz (or 1,973 MHz for LSB) LSB-signal to an USB-signal in the frequency range 1.6 to 4.3 MHz, by mixing it with the injection frequency from the VCO of the synthesiser. The image signal is removed in the 4.3MHz low-pass filter and the wanted signal is applied to TR1.
  • Page 70: Harmonic Generator

    TEST ALARM and TRANSMIT ALARM, and can be started by pushing the ALARM START push-button that applies +12 V to terminal 2c. Via the voltage divider R32 and R33, a keying signal is applied to the Key Selector. The 2Hz Astable Muitivibrator starts and supplies base current to TR6 and TR11 alternatively.
  • Page 71: Frequency Dividers

    5.4.5 /236\ VCO The Loop Filter and Voltage Controlled Oscillator are located o n this printed circuit board. The Loop Filter consists of an active4th order low pass filter and an integrator. The purpose of the Loop Filter is to remove the pulses from the output of the Phase/Frequency Detector on board /237\ and allow only the DC-information to pass on to the vari-cap diodes of the VCO.
  • Page 72 The Look Detector consists of IC15 and IC17. If the loop is in look , output pin 9 of IC19 will always be L0W when the output pulse from the Loop Divider is generator, so output pin 9 of IC15 stays LOW. In an unlocked condition of the loop, output pin 9 of IC19 will be at a LOW or HIGH logic level at random when the output pulse from the loop Divider is generated.
  • Page 73: Master Oscillator

    When the BAND switch is turned into the 2182 kHz position, terminal 11 receives a LOW level signal which, via 3/4 IC6, activates the ripple blanking outputs of IC12, and IC19. The displays are then blanked, but the original Frequency No. is stored. If a HIGH level is applied to terminal 13 (Disable) or a LOW level to terminal 14 (Programmed Frequency No.), the Blanking Oscillator consisting of IC3 and associated components starts a 1Hz oscillation and...
  • Page 74 By activating the key S2, the output of pin 9 of SK1 will be forced LOW, as for an un-programmed Frequency No., thus permitting the user via the key S1 to activate IC and there by IC6 and IC8. Their outputs are combined by means of 4/6 IC5, 2/4 IC7 and 1/4 IC3 into three pulse-trains, one for the Vcc-pins and one for the Enable pins of the three PROM’s and lastly one for the transistor TR1.
  • Page 75: Circuit Summary, Transmitter Power Amplifier T 5000

    Circuit Summary, Transmitter Power Amplifier T 5000 5.5.1 The circuit diagram is divided into a wiring diagram On page 8-89 showing the interconnections between the printed circuit boards of which the Transmitter Power Amplifier is composed, and circuit diagrams of the individual circuit boards.
  • Page 76 5 – 10...
  • Page 77: Circuit Summary, 24 V Do Power Pack P 5000

    When "2182 kHz" is selected by means of the BAND switch the information is HIGH on al] four input leads from the BAND switch. In that case the output from 1/2 IC2, pin 8, is HIGH and as terminal 7 is open and thus HIGH too, the output of 1/4 IC1, pin 11, is LOW, telling the Exciter to select 2182 kHz.
  • Page 78 5 - 11...
  • Page 79: Circuit Description, 24V Dc Power Pack P5000

    5.7.4 High tensions for the P.A. valves are generated by the HT-converter followed by rectifiers. To avoid excessive anode voltage to the P.A. - valves at high battery voltages an input voltage sensor is incorporated in the power pack. When the input voltage exceeds a certain voltage a relay in the input voltage sensor circuit will operate and decrease the anode voltage.
  • Page 80 The board contains also the keying relay RL1 for the complete TRP5000 equipment. The contacts of the relay are used to disconnect the speaker built into the Power Pack, and to key the grid bias of the P.A. valves. 5 - 12...
  • Page 81: Ht-Rectifiers And Base Keying Circuit

    5.8.3 /262\ HT-RECTIFIERS AND BASE KEYING CIRCUIT. The current which energises relays RL1 and RL2 passes Transmitter Power Amplifier safety switch 250S1 and Power Pack safety switch 260S2 and is controlled by keying relay 261RL1. Via the contacts of RL1 and RL2, b ase drive is applied to the HT-converter transistors and the square wave output is rectified in six bridge circuits.
  • Page 82 5 - 13...
  • Page 83: Circuit Summary, Ac Power Pack P5001

    Circuit Summary, AC Power Pack P5001 The circuit diagram is divided into a wiring diagram on page 8-109 showing the interconnections between the printed circuit boards of which the Power Pack is composed, and circuit diagrams of the individual circuit boards. The block diagram on page 8-63 illustrates the operation of the Power Pack.
  • Page 84 5 - 14...
  • Page 85 5.10.3 /267\ HT-RECTIFIERS A HT-transformer 267 T2 has six secondary HT-windings. Each winding is connected to a bridge rectifier and the DC-outputs are series connected to obtain the anode supply voltage for the Transmitter Power Amplifier, while the DC-output from the second bridge above ground is used as screen grid supply voltage.
  • Page 86: Simple Service

    5 - 15 Simple Service Incorrect Operation If the equipment is not functioning correctly, a check should be made that it is being operated properly. Go through adjustment procedures 2.2 and 2.3 if necessary. Battery The condition of the battery should be checked at frequent intervals. The battery must always be fully charged and should be topped up frequently with distilled water (liquid should rise 5 to 10 mm above the plates).
  • Page 87 6 - 1...
  • Page 88: Replacement Of Fuses

    Position of Check of Deflection to Actual deflection CHECK SWITCH 3 corresponds to approx. anode DC voltage 1700 2.4 to 3.5 dependent on supply voltage screen grid voltage of valve no. 1 screen grid voltage 2.4 to 3.6 dependent of valve no. 2 on valve characteristics control grid bias 2.3 to 3.7 dependent...
  • Page 89 6 - 2...
  • Page 90 Fuse Rating Designation Front Panel Fuses Symptom if fuse is blown (from left to right) 1.6A fast 260FS 5 7-5v to Receiver no light in display 1.6A fast 260FS 6 15-7V to Receiver and no light in displays, Exciter negative deflection in CHECK SWITCH position V 3.15A fast 260FS 3...
  • Page 91 6 - 3...
  • Page 92: Repair And Alignment

    REPAIR AND ALIGMENT Introduction Repair and adjustments on the equipment shout be preformed only by qualified technicians, to whom this chapter is addressed. Before attempting any repairs or adjustments, a study of Chapter 5, Technical Description, is recommended. Cross-Slot Srews The cross-slot screws used to secure the printed circuit boards are Pozidriv screws.
  • Page 93 7 – 1...
  • Page 94: Ac Voltages

    AC Voltages AC voltages listed in the circuit diagrams are typical voltages. Voltages specific are based on measurement with an oscilloscope having an input impedance of 10Mohms in parallel with 7pF, a sensitivity of the order of 50mV/div and a frequency range of not less than DC - 50MHz. AC voltage values measured in the signal path of the transmitter can be measured only if the transmitter is modulated with a two-tone signal.
  • Page 95 7 - 2...
  • Page 96: Adjustments

    Note: Extreme care must be taken as high tension is now accessible. 4. Key the transmitter and adjust I by means of 254R1 (right) to 1.4 on the meter scale. 5. Key the transmitter and adjust I by means of 254R3 (left) to the same value.
  • Page 97 7 – 3...
  • Page 98: 232\ Realignment Of 1.4 Mhz Exciter

    7.10 /232\ Realignment of 1.4 MHz (1.973 MHz) EXCITER Measuring equipment: Oscilloscope having a sensitivity better than 50mV/div. Input impedance 10Mohm in parallel with 20pF or less. 7.10.1 Realignment of 232R6, Microphone Sensitivity: The microphone sensitivity potentiometer is normally fully clockwise, corresponding to full sensitivity.
  • Page 99 7 - 4...
  • Page 100: 233\ Realignment Of Rf Translatoft

    Press TUNE button and adjust 232R46 to give exactly the same peak deflection as before. Re-solder grey lead to terminal 232-13. Above procedure implies that 232R15 is correctly adjusted (point 7.10.2.). 7.10.5 Realignment of 232T1: Control settings: SUPPLY switch: STAND BY 1.
  • Page 101 7 - 5...
  • Page 102 7.11.3 Realignment of 233R57: Control settings: SUPPLY switch: STAND BY MODE switch: POWER switch: DUPLEX BAND switch: Not 2182 kHz FREQUENCY NO: A radiotelephone frequency in the 6 MHz band. 1. Connect oscilloscope to output BNC socket 231 SK7. 2. Adjust 233R4 tor minimum interference signa!. 7.11.4 Realignment of 233T1: Control settings: SUPPLY switch: STAND BY 1.
  • Page 103 7.11.6 Realignment of 1.6-4 MHz filter: Control settings: SUPPLY switch: STAND BY MODE switch: POWER switch: DUPLEX BAND switch: Not 2182 kHz FREQUENCY NO: A radiotelephone frequency between 1.6 and 4 MHz 1. Conneet signal generator to test point 233TP3 through a 10 nF capacitor and to ground at 233R16.
  • Page 104: Realignment Of Control Circuit And Tone

    Band Alignment frequency Input Output applied to 233TP3 Coil Coil 4 MHz 4140 kHz 233L13 233L25 6 MHz 2062 kHz 233L14 233L26 8 MHz 2715 kHz 233LI5 233L27 12 MHz 2690 kHz 233L16 233L28 16 MHz 2660 kHz 233L17 233L29 22 MHz 2560 kHz 233L18...
  • Page 105 7 -8...
  • Page 106: 235\ Realignment Of Harmonic Generator

    7.13 /235\ Realignment of HARMONIC GENERATOR Measuring equipment: DC Voltmeter having an internal resistance of 25kohms or more. Extender board /259\. Control settings: SUPPLY switch: STAND BY BAND switch: Not 2182 kHz Board /235\ exists in two versions. The diagram no’s. are 992 203 3 Version 2 and 992 203 3 Version 4.
  • Page 107 7 - 9...
  • Page 108: 236\ Realignment Of Vco

    7.14 /236\ Realignment of VCO Measuring equipment: Frequency Counter having an accuracy better than 10-3 and a sensitivity of at least 0.5 V. Extender Board /259\ Control settings: SUPPLY switch: STAND BY BAND switch: Not 2182 kHz 1. Insert extender board 2.
  • Page 109: Function Table For 234Ic5

    Input Output    Mode switch Mode of operation 0 0 0 0 0 A2H 1 1 1 1 1 0 1 1 A2H 0 0 0 0 1 A1 1 1 1 1 1 0 1 1 A2H 0 0 0 1 0 F1 1 1 1 1 1 0 1 1 A2H 0 0 0 1 1 Test Alarm...
  • Page 110 7 - 11...
  • Page 111: Function Table For 235Ic4

    Input Output 0 0 0 0 0 \ 1 1 1 1 0 0 0 1 0 0 0 0 1 1 1 1 1 0 0 0 1 0 0 0 1 0 1 1 1 1 0 0 0 1 0 0 0 1 1 1 1 1 1 0 0 0 1 0 0 1 0 0...
  • Page 112 7 - 12...

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