LBI-31932E Mobile Communications MVS SYNTHESIZED MOBILE RADIO 403-512 MHz, 25 WATT MOBILE COMBINATION TABLE OF CONTENTS RF BOARD . . . . . . . . PA BOARD . . . . . . . . AUDIO BOARD . . . . . LOGIC BOARD . . . . . SYSTEM BOARD . . . . FRONT CAP ASSEMBLY SERVICE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance Manual .
LBI-31932 SPECIFICATIONS* TABLE OF CONTENTS SYSTEM Page SPECIFICATIONS System . . . . Transmitter . . Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LBI-31932 TRANSMITTER Power Output 25 Watts Conducted Spurious 60 dB Below Carrier (typical) Modulation ±5.0 kHz (maximum) Audio Sensitivity 40 millivolts (typical) Audio Frequency Characteristics (Per RS-I52B) Within +1 to -3dB of 6 dB/octave pre-emphasis from 300 Hz to 3000 Hz per EIA standards. Post limiter filter per FCC and EIA. FMNoise -50dB (typical, companion receiver method) Power Adjust Range 12.5 to 25 watts Distortion 2% (typical) Deviation Symmetry 0.
LBI-31932 GENERAL DESCRIPTION The MVS radio consists of the following assemblies: • RF Board The MVS mobile radio is a synthesized, wideband radio, utilizing microcomputer technology to provide high reliability, high quality, and high performance in two-way, FM, mobile communications. The MVS provides 25 watts of RF output power across each band split (403-440 MHz, 440-470 MHz, and 470-512 MHz) without retuning. The receiver can cover any 20 MHz segment of each band split without retuning.
LBI-31932 AVAILABLE OPTIONS TABLE 1 TONE & DIGITAL CHANNEL GUARD TONE CG DIG. CG DIG. CG DIG. CG No. CG 67.0 71.9 74.4 77.0 79.7 82.5 85.4 88.5 91.5 94.8 97.4 100.0 103.5 107.2 110.9 114.8 118.8 123.0 127.3 131.8 136.5 141.3 146.2 151.4 156.7 162.2 167.9 173.8 179.9 186.2 192.8 203.5 210.
LBI-31932 EXTERNAL ALARM FOR T-99 External Alarm Relay Option SU01 (19A705499P1) is used with the Type 99 Control Panel options. The relay requires External Alarm ON/OFF switch Option SU02 (19C851585P7) and connects to pin 13 of option cable Option CC01. The relay can sound the vehicle horn when a Type 99 call is received. The alarm switch is used to turn the horn relay on or off.
LBI-31932 CHANNEL PRIORITY 1 (P1) Two push type switches. Press CHANNEL (up arrow) to increase the channel number; press CHANNEL (down arrow) to decrease the channel number. The channel number will be shown on the display. Unprogrammed channels will be skipped. Illuminates when the channel displayed is a Priority 1 scan channel. SCAN A momentary type switch to turn the scan function on or off.
LBI-31932 DELETE SCAN CHANNEL (S,P1,P2) SCN Indicator 1. Confirm that the radio is on. If not, press the power switch. 2. If SCN indicator is lit, press and release SCAN switch to disable scan function. 3. Select the desired channel to be removed from the scan list using the CHANNEL UP or DOWN switches. 4. Press and hold SCAN switch; then press the CHANNEL DOWN switch once. This removes the selected channel from the scan list. All scan indicator (S,P1,P2 and SCN) will be off. 5. Release SCAN switch. 6.
LBI-31932 DETAILED SCAN OPERATION The scan operation is controlled by the Logic Board, and provides for scanning any or all of up to 16 channels. The scanned channels may be located anywhere within the frequency band of the radio, and can include two priority channels (P1 and P2). If desired, all 16 channels can be scanned with or without priority level. When SCAN is enabled, scanning of the selected channels starts immediately.
LBI-31932 f. Carrier on P2 and right Channel Guard Display P2, scan P1 P1-P1-P1-P1-P1-P1-... tb=500 msec ts=32 msec g. Carrier on P2 with right Channel Guard, carrier/wrong Channel Guard on P1 P1-P1-P1-P1-P1-... tb=2.5 seconds ts=75-175 msec CONDITION 2: Priority 1 has Channel Guard programmed, Priority 2 does not. b. Carrier on P2 detected/wrong Channel Guard P1-P2-P1-P1-P1-P1-P1-P1-P1-P1-P1-P2-P1-... tb=500 milliseconds ts=32 msec for P1 75-175 msec for P2 c.
LBI-31932 In the EGE tone format, the first tone may be from tone group A (for Individual or Group calls) or from tone group C (for Super Group calls). The second tone may be from tone group B (for Individual calls) or from tone group D (for Group and Super Group calls). The EGE tone format is illustrated below.
MECHANICAL PARTS BREAKDOWN LBI-31932 Table 5 - Motorola Tone Frequencies And Groups Tone No. Tone Group 1 Tone Group 2 Tone Group 3 Tone Group 4 Tone Group 5 Tone Group 6 1 2 3 4 5 6 7 8 9 0 349.0 Hz 368.5 Hz 389.0 Hz 410.8 Hz 433.7 Hz 457.9 Hz 483.5 Hz 510.5 Hz 539.0 Hz 330.5 Hz 600.9 Hz 634.5 Hz 669.9 Hz 707.3 Hz 746.8 Hz 788.5 Hz 832.5 Hz 879.0 Hz 928.1 Hz 569.1 Hz 288.5 Hz 296.5 Hz 304.7 Hz 313.0 Hz 953.7 Hz 979.9 Hz 1006.9 Hz 1034.7 Hz 1063.2 Hz 1092.4 Hz 339.6 Hz 358.6 Hz 378.6 Hz 399.
LBI-31932 (19D901983, Sh. 1, Rev.
INTERCONNECTION DIAGRAM LBI-31932 C O M B O (19D901983, Sh. 2, Rev.
LBI-31932 (19D901983, Sh. 3, Rev.
INTERCONNECTION DIAGRAM LBI-31932 C O M B O (19D901983, Sh. 4, Rev.
