Ericsson MPI-II LBI-38558B Maintenance Manual Download | Manualshive

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Figure 1 - Synthesized MPI Radio Block Diagram (UHF)

LBI-38558

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Summary of Contents for MPI-II LBI-38558B

Page 1: ... LBI 38558B Mobile Communications MPI II 403 512 MHz SYNTHESIZED PERSONAL RADIO COMBINATION TABLE OF CONTENTS TRANSMIT RECEIVE ASSEMBLY LBI 38559 SYNTHESIZER BOARD LBI 38807 SERVICE SECTION LBI 38561 Maintenance Manual ...

Page 2: ... 6 0 to 12 0 Volts Channel Capacity 2 Channels Frequency Spread RX 10 MHz no degradation 15 MHz 1 dB degradation 20 MHz 2 dB degradation TX 7 MHz no degradation 10 MHz 1 dB degradation 15 MHz 3 dB degradation Frequency Stability 5 PPM Channel Spacing 25 kHz Dimensions less antenna H x W x D With 2 Watt Battery With 4 Watt Battery 7 11 x 2 59 x 1 46 inches 18 05 x 6 57 x 3 71 cm 7 81 x 2 59 x 1 46 ...

Page 3: ...al method 65 dB 25 kHz Spurious Response 70 dB Intermodulation 65 dB Hum and Noise Squelched Unsquelched 80 dB 40 dB Modulation Acceptance 7 kHz Frequency Response Within 2 dB and 8dB of a standard of 6 dB octave de emphasis curve from 300 to 3000 Hz EIA RF Input Impedance 50 ohms Receiver Attack Time 140 milliseconds EIA Receiver Recovery Time 110 milliseconds EIA The software contained in this d...

Page 4: ...HARGER Option MPPS3V VEHICULAR CHARGER Option MPPS3K 120V MULTI CHARGER Option MPPS3W 220V MULTI CHARGER Option MPPS3X C O M B I N A T I O N MPI II RADIO PACKAGE NUMBERS PACKAGE NUMBER DESCRIPTION MP12U1 MP14U1 2 WATT 403 440 MHz 4 WATT 403 440 MHz MP12U2 MP14U2 2 WATT 440 470 MHz 4 WATT 440 470 MHz MP12U3 MP14U3 2 WATT 470 512 MHz 4 WATT 470 512 MHz OPTIONS AND ACCESSORIES LBI 38558 3 ...

Page 5: ...Figure 1 Synthesized MPI Radio Block Diagram UHF LBI 38558 4 ...

Page 6: ... and this condition occurs Talk Around A Talk Around feature is provided for systems using a re peater With the toggle switch in the middle position the radio will transmit and receive on the programmed frequencies The Talk Around feature is enabled by moving the toggle switch to the rear position This will enable the radio to transmit on the receive frequency bypassing the repeater Two Tone Type ...

Page 7: ...er 8 in Tone Group 2 is 879 0 Hz Example 2 Code 265 The digit 2 in Table 3 shows that both Tone A and Tone B are both in Tone Group 2 Tone number 6 is 788 5 Hz Tone number 5 is 746 8 Hz GROUP CALL Quick Call Format In Group Call applications the Tone Group is determined by Table 5 while the frequency is determined by Table 4 Re fer to the following examples Example 1 Group Call Code 07 also code 2...

Page 8: ...026 566 134 273 245 370 554 031 374 643 135 205 610 246 542 653 032 136 502 712 252 661 036 137 142 174 270 254 314 612 706 037 560 627 143 333 255 425 043 355 144 466 666 262 316 431 730 047 375 707 145 525 266 655 051 520 771 147 303 306 761 271 427 510 762 053 150 256 703 274 652 054 405 675 152 366 415 276 326 432 056 465 656 153 606 630 307 362 565 057 172 155 233 660 311 330 456 561 060 116 ...

Page 9: ...ive Mode move the toggle switch to the rear position and back to the middle 3 With the toggle switch toward the rear of the radio the radio will be in one of two states Talk Around The radio will now transmit on the programmed re ceive frequency This enables one to Talk Around a repeater T99 Monitor If the radio is in stead programmed for Type 99 Decode this will put the radio in Type 99 Monitor M...

Page 10: ...attery pack For specific instructions refer to the applicable operating instructions or maintenance manual BATTERIES The MPI II radio uses a rechargeable battery A 7 5 Vdc battery is shipped with 2 watt radios and a 10 Vdc battery is shipped with 4 watt radios The batteries can be charged while connected to the radio or removed for charging For further in formation about the rechargeable batteries...

Page 11: ...INTERCONNECTION DIAGRAM C O M B I N A T I O N 19D902895 Sh 1 Rev 1 LBI 38558 10 ...

Page 12: ...12 Machine screw TORX Drive M2 5 45 x 12 Quantity 2 19A702364P104 Machine screw TORX Drive M2 0 4 x 4 Quantity 3 19A702364P106 Machine screw TORX Drive M2 0 4 x 6 Quantity 1 19C851912P4 UDC connector cover 344A3111G2 Cover assembly 19B801566P5 Shield 19B801480P3 Battery contact Used in G7 1 THESE ITEMS ARE PART OF HARDWARE KIT PL19A702379 COMPONENTS ADDED DELETED OR CHANGED BY PRODUCTION CHANGES C...

Page 13: ...DULE B2 19A134461P3 Microphone cartridge 200 850 ohms impedance at 1 kHz 1 5 10 VDC sim to EM 80 CAPACITORS C1 19A700232P64 Ceramic 100pF 10 100 VDCW temp coef 5600 PPM MODULE B1 19A149673P2 Round water proof 8 ohms 1 2 w sim to Line Electric Co TL 50A MISCELLANEOUS 10 19A703346P1 Pad 18 19A705861P1 Diaphragm 19 19A702396P4 Nameplate 24 19C850976G3 Front cover COMPONENTS ADDED DELETED OR CHANGED B...

Page 14: ... of the following miscellaneous parts 2 19D900641G3 Rear cover Used in G8 4 watt 6 19C850865P1 Option receptacle 7 19B800852G1 Contact 8 19D8008641G7 Rear cover Used in G5 2 watt 9 19A701728P2 Washer non metallic 10 19B800851P1 Insulator 11 19B216401P5 Spring 13 19A116357P2 Pressure sensitive tape 17 N327P9008E Rivet tubular 20 19C850861P3 Insulator 23 344A3087P2 Wire assembly black 24 344A3087P3 ...

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