Ericsson LBI-39014, Руководство по обслуживанию

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Squelch Tail Elimination (STE)
STE is used with tone and digital Channel Guard to
eliminate squelch tails. The STE burst is transmitted when
the microphone PTT switch is released. The receiving radio
decodes the burst and mutes the receiver audio for 250 ms.
This mute time allows the transmission to end and to mute
the squelch tail. The radio looks for STE on the received sig-
nal when the microphone is either on or off-hook.
HARDWARE AND HARDWARE
OPTIONS
The location and placement of system hardware options
is shown on the MDX Conventional Mobile Radio Intercon-
nection Diagram 188D5198.
CABLE OPTION PMCD7ZE
Cable Option PMCD7Z (19D851585P14) is used to bring
all option connections from the system Board through the back
of the radio to the outside. This cable is required with all exter-
nal options.
NOISE SUPPRESSION KIT OPTION PMPD1A
Noise Suppression Kit, Option PMPD1A, consist of filter
19A148539G1 and Installation Manual LBI-31363. This kit is
available for installations where excessive alternator or electri-
cal noises, present on the power cable, do not permit the radio
to operate properly. Refer to the Interconnect Diagram for the
radio and options.
POWER CABLE OPTION PMCD9A
The 18-foot Power Cable Option, PMCD9A
(19B801358P17) is available for installations requiring more
than the standard 9-foot cable.
EXTERNAL SPEAKER OPTION PMZM1T
External Speaker and Cable Option PMZM1T, provides the
user a 5-inch waterproof speaker in a LEXAN housing. Option
PMCC9M is an 18-inch, external speaker cable option
PMCC9M (19A149590P8), included in the option PMCD7Z.
A 16-foot cable option PMCD1W (19A149590) is also avail-
able.
When using the external speaker, the internal speaker
should be disconnected. The internal/external speaker switch
option PMPL3D allows use of both speakers (Refer to the In-
terconnection Diagram).
EXTERNAL ALARM HORN RELAY OPTION
PMSU1C
External Alarm Horn Relay Option PMSU1C
(19A705499P1) can sound the vehicle horn when a call is re-
ceived. The option connects to Pin 13 of cable option
PMCD7Z (19C851585P14) and is enabled through the front
panel switch.
RADIO OPERATION
A complete set of operating instructions for the MDX UHF
radio are provided in Operator’s Manual LBI-39012. A copy of
LBI-39012 is provided with each radio.
In the conventional mode of operation, the user selects a
channel and communicates on that channel in the conventional
mode. A system refers to a set of channels and a channel is a
transmit/receive radio frequency pair.
The exact operation of any radio depends upon the operat-
ing mode, the programming of the radio and the particular ra-
dio system. Most features described in these operating
instructions can be enabled or disabled through programming.
Both of these important factors must be considered when ad-
dressing the following instructions.
USER INTERFACE
Operating controls are located on the radio front panel and
microphone.
The Front panel Light Emitting Diode (LED) display pro-
vides radio status and communication control information for
the operator. The keypad is used for activation of various fea-
tures and functions.
Turning The Radio On/Off
The radio is turned On/Off by pressing the PWR button in
the upper left corner of the front panel. To turn the radio OFF
press the PWR button again.
SCAN OPERATION
The SCAN function allow monitoring up to 16 receive
channels. The scanned channels may be any frequency within
the frequency band limits of the radio and may be Channel
Guard protected (tone/digital). All scan functions are retained
in memory, even if the 12 Volt battery is disconnected.
Any channel may be scanned with or without a priority
level. One channel may be programmed for Priority 1 (P1)
and another for Priority 2 (P2) with any or all remaining chan-
nels programmed as non-priorities.
RECEIVER SCAN RATE
The scan rate for the radio will vary depending upon the
number of channels programmed into the scan list and whether
or not Channel Guard is programmed. When scanning 16 inac-
tive channels, the priority channels are sampled 11 times/sec-
ond and the non-priority channels 3 times/second. The scan
rate will be faster when fewer channels are programmed into
can memory.
PRIM.
CODE EQUIVALENT CODE PRIM.
CODE EQUIVALENT CODE PRIM.
CODE EQUIVALENT CODE
023
025
026
031
032
036
037
043
047
051
053
054
056
057
060
065
066
067
071
072
073
074
075
076
104
107
114
115
117
122
123
125
127
130
131 340,766
566
374,643
137
560,627
355
375,707
520,771
405,675
465,656
172
116,737
301
734
516,720
603,717,746
470,701
640
360,721
501,624
203,754
226,557
365
327,615
534,674
411,756
535
632,657
173
412,441,711
364,641
572,702 132
133
134
135
136
142
143
144
145
147
150
152
153
155
156
157
161
162
163
164
165
171
172
176
212
213
217
222
223
224
225
227
231
234
235 605,634,714
413,620
273
205,610
502,712
174,270
333
466,666
525
303,306,761
256,703
366,415
606,630
233,660
517,741
322,503
345,532
416
460,607,654
207,732
354
265,426
244,417
253
263,736
371,453,530
445,457,575
350,475,750
313,506,574
536
261,567
504,631,636,745
423,563,621,713
611,671,723
236
237
243
245
246
252
254
255
262
266
271
274
276
307
311
312
315
317
324
325
331
332
344
346
351
356
363
446
447
452
454
455
462
523
526
251,704,742
464,642,772
267,342
370,554
542,653
661
314,612,706
425
316,431,730
655
427,510,762
652
326,432
362,565
330,456,561
515,663,743
321,673
546,614,751
343,570
550,626
372,507
433,552
471,664,715
616,635,724
353,435
521
436,443,444,662
467,511,672
473,474,731,744
524,765
513,545,564
533,551
472,623,725
647,726
562,645
Table 2 - Digital Channel Guard Codes
LBI-39014 LBI-39014
4