The Mobile Telephone Network _______________________ 5
Base Station and Cell ______________________________________ 6
Radio Channels ___________________________________________ 6
Radio Coverage ___________________________________________ 7
Transmission Control and Communication ____________________ 8
Quality Control ___________________________________________ 9
Data Transmission________________________________________ 10
Frequency Tables ___________________________________11
The MSC is the interface between the radio system and the
phone network
MSC, which also provides all signalling functions needed to establish the calls.
In order to obtain radio coverage of a given geographical area, a certain number of
base stations is required. The number of base stations may range from one up to a
hundred or more. Such a geographical area is called an
The number of MSCs varies from one country to another, depending on traffic density, the number of base stations, and so on. Each MSC handles calls from one
ice area
number of
(PSTN). Calls to and fr om the mobi le su bscri ber ar e swit ched by the
which, in turn, is divided into radio z ones. A service area consists of a
radio zones
(or
cells
), each of which is serviced by a base station.
public switching tele-
MSC service area
.
serv-
Figure 1: Basic Units in the Mobile Telephone System
5
Page 6
System Introduction
Base Station and Cell
A base station is able to communicate with any mobile telephone within a certain
area close to it. This area is called a cell.
The base station contains channel units. Each channel unit is equipped with a
transmitter
communication with the MS C and for data sign alling wit h the mobile tel ephones on
the radio path. A channel uses two separate radio frequencies, one for transmission
by the mobile telephone and one for transmission by the base station. Such a channel is called a
duplex distance, is always the same and is 45 MHz.
All base stations wit hin a se rvi ce area are connected to the MSC via dedicate d l ine s
in the public telephone network.
radio receiver
, a
duplex channel
, and a
control unit
. The distance between these two frequenci es, the
Figure 2: Channel Unit
. The control unit is used for data
radio
Radio Channels
Two different types of radio channels exist in a base station:
• voice channels
• control channels
The majority of channel units are voice channel units. Such a voice channel unit is
engaged in carrying one telephone call at a time. Depending on how many simultaneous calls a base station is required to handle, the number of
voice-channel units i n some base stations may be only a f ew, while in other s up to a
hundred or more.
There is normally only one control channel in each cell. A mobile telephone being
within a cell, and not in the conversation state, is always tuned to the control channel of this cell. The telephone supervises the continuous data stream.
The total number of channels available in a mobile telephone system is limited. As
the radio waves only reach so far from the base station, however, identical channel
frequencies can be used by several base stations, provided the distance between
them is suffic ie nt t o pre vent interference. This method is use d to i ncrease the capacity of the system.
(VC)
(CC)
6
Page 7
System Introduction
Radio Coverage
The coverage (or the transmitting power) of the base station is adjusted to the
amount of traffic, so less power is used in cities and other areas where the traffic is
heavy. The covered area in these cases may be limited to about two kilometers.
More power is permissible in less populated areas. The range in these areas may
amount to about 40 kilometres.
Figure 3: Service Areas with Radio Zones and Base Stations
A method known as the
small-cell technique
may be applied in areas with an
extreme demand on radio capacity. With this technique the service area to be covered is divided into a number of radio zones (see
fig. 3
). Each radio zone is covered
by a base station, which includes a transmitter (Tx) and a receiver (Rx). For such a
system to operate, without the base stations inte rfering with ea ch other , the availabl e
frequency band is split up, for example into six different groups (A-F), with a certain number of frequencies in each group. Allocating these groups in such a way
that no radio zone operating on a particular group of frequencies adjoins another
operating on the same frequencies makes it possible to cover an entire service area,
without any interference between the base stations.
Fig. 4
shows an example of
channel allocation.
C
7
F
BE
D
6
1
2
AD
C
5
B
E
8
A
3
D
CF
4
B
E
10
F
A
9
Figure 4: Channel Allocation
7
Page 8
System Introduction
In order to reduce the risk of interference still further, and to remove noise, the system uses the
ratio of the radio channel by compressing the signal before transmission, and
expanding the signal on reception.
compander
technique. Basically, this method impr oves the s ignal/no ise
The ETACS system features
MHz. Full duplex means that a conversation can progress simultaneously in both
directions, as it does on an ordinary telephone. The duplex separation is the frequency separation between the transmitter and receiver operating frequencies. The
900 MHz-band has been divided into an upper and a lower frequency band. The
lower band (872.0125 - 904.9875 MHz) contains the mobile telephone transmitter
channels, and the upper band (917.0125 - 949.9875 MHz) contains the corresponding mobile telephone receiver channels.
full duplex
operation, with a
duplex separation
of 45
Transmission Control and Communication
The heavy traffic and the many functions applied in the system requires the telephone exchanges to be program-controlled. The exchange has to observe which
base station is now serving the mobile telephone. When the car moves away from
the original base station and comes closer to another, the exchange must request a
switch-over to the more favourable station. This must occur without interrupting or
cancelling the call. Switching a call in progress from one base station to another is
Handoff
called
base station, the exchange makes sure that this is really the station that will provide
the best conditions for transmission and reception.
To enable the exchange to supervise transmission as indicated above, there is a continuous flow of data between the mobile telephones and the exchange via the base
stations. This information, which cannot be heard in the telephone, concerns channel selection, tr ansmiss ion power, identification of s ender an d recei ver, start and termination of call, and so on. The information enables the exchange that holds the
subscriber registered to follow the movements of the mobile telephone. Should the
subscriber's unit come into the control area of a different exchange, this exchange
will immediately report the new location to the home exchange.
Handover.
or
Before transferring the communication line to a new
When a mobile telephone approaches the limit of the system's coverage, or when
neighbouring base stations cannot offer a free channel, conversation shall continue
on the active channel until reception quality gets below a specified level.
The channels of the sy stem are automaticall y scanned and analyze d with regard to
channel number, voice channel, control channel and service area. Normally, the
mobile telephone is locked on a control channel in the service area where it is
located. If the telephone becomes unlocked, it will immediately start scanning for
another control channel .
Each base station sends a
made to a mobile telephone, the set up inf ormation will be transmitted over this control channel. Once the mobile telephone has responded to the call, the base station
searches for a free voi ce channel and orde rs th e mobile t o switch to the chosen vo ice
channel, after which the mobile subscriber will hear a ringing signal on the mobile
telephone. The enti re conv ers ation between th e two subs cribe rs ta kes place over th e
voice channel selected by the base station. If a zone boundary is passed during the
call, the channel wil l be swi tched ov er a utoma tica lly to t he new bas e stat ion and the
call will continue without any disturbance.
search signal
over the
control channel
. When a call is
8
Page 9
System Introduction
If the mobile telephone makes a call, a call request will be sent to the area base station, which will sel ect a voic e channe l a nd dire ct the mobile t o the s el ected c hannel .
As in the previous case, t he c al l wi ll be transmitted over the selected voice channel,
until a zone boundary is passed.
The mobile telephone uses the
report to the system when it passes from one service area into another. One of the
purposes is for p age response, which is an answer t o a cell access from a mobile st ation , that is a call from the mobile phone or an order confi rmation. When messages
are sent to all mobile phones being tuned to a control channel, this is called
head message.
tain for instance the following information about the cellular system:
•
AID (Area Identity) ind icate s syst em A or B, sy stem ide ntit y number, MSC service area and location area.
•
DCC (Digital Colour Code) identifies which group of cells the message belongs
to.
The system parameters are transmitted during this message and con-
control channel
for different purposes, namely to
over-
Quality Control
Each time a connection is established, the exchange automatically measures the
field intensity of the mobile telephone. During conversation, the signal-to-noise
ratio is continuously measured by a monitoring signal, SAT (Supervisory Audio
T one), sent out by the base sta ti on and returned by the mobile telephone. If the base
station finds that the signal strength is below a certain value, it alerts the exchange.
The exchange now requests neighbour ing base stations to transmit their monitoring
signals and measure the signal strength. The exchange then decides which base station provides the best conditions, and orders the mobile telephone to switch to a
channel of this base station instead. The mobile sends a signalling tone (ST) as
response or synchronization to the base station, for instance during call setup and
during handoff.
9
Page 10
System Introduction
Data Transmission
Many types of signal ling are us ed bet ween th e di f fer ent parts of t he E TACS system.
The signalling has the following main objectives:
•
•
•
•
•
MSC - MT
- setting up and clearing of calls
- switching of call in progress
- updating
- ordering of power reduction
MSC - BS
- remote control of base station
- transmission of alarm
MSC - MSC
- updating of subscriber register and roaming register
- transfer of call to roaming subscriber
MSC - PSTN
- setting up of calls
BS - MT
- supervision of transmission quality
The messages and orders between the different units are sent in the form of socalled words. All words have the same length. Each word is divided into a number
of fields, each of which c ont ain s a gi ven type of information. The mobile telephone
has a systems section where the fr ames are coded and de cod ed. The transmi ssion i s
performed by means of FSK (
represented by a constant frequency above the carrier frequency of the transmitter.
A logic 0 is represented by a constant frequency below the carrier frequency. The
speed of transmission is 8 kbits/s.
Frequency Shift Key
) modulation, where a logic 1 is
10
Page 11
Frequency Tables
A mobile telephone for the ETACS system operates in full duplex and provides
1320 channels with a channel spacing of 25kHz (0.025MHz) and a duplex separation of 45MHz.
The 900MHz band has been divided into an upper and a lowerband. The lower subband, 872.0125 - 904.9875MHz, covers the 1320 transmitting channels in the handheld telephone, while the upper sub-band, 917.0125 - 949.9875MHz, covers the
corresponding 1320 receiving channels.
The channels are numbered from 1329 to 2047 and from 0 to 600.
The following formulas can be used to calculate the frequencies (f,MHz) associated
with a certain channel number (N = channel number).
Frequencies, channels 1329 - 2047 (see table 1):
fTx= 872.0125 + (N-1329) x 0.025 MHz
fRx= 917.0125 + (N-1329) x 0.025 MHz
System Introduction
Frequencies, channels 0 - 600 (see table 2):
fTx= 889.9875 + N x 0.025 MHz
fRx= 934.9875 + N x 0.025 MHz
11
Page 12
System Introduction
Table 1: Channels 1329 - 2047
Channels 1329 - 1478
Ch.TxRxCh.TxRxCh.TxRx
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
872.0125917.0125
872.0375917.0375
872.0625917.0625
872.0875917.0875
872.1125917.1125
872.1375917.1375
872.1625917.1625
872.1875917.1875
872.2125917.2125
872.2375917.2375
872.2625917.2625
872.2875917.2875
872.3125917.3125
872.3375917.3375
872.3625917.3625
872.3875917.3875
872.4125917.4125
872.4375917.4375
872.4625917.4625
872.4875917.4875
872.5125917.5125
872.5375917.5375
872.5625917.5625
872.5875917.5875
872.6125917.6125
872.6375917.6375
872.6625917.6625
872.6875917.6875
872.7125917.7125
872.7375917.7375
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
873.2625918.2625
873.2875918.2875
873.3125918.3125
873.3375918.3375
873.3625918.3625
873.3875918.3875
873.4125918.4125
873.4375918.4375
873.4625918.4625
873.4875918.4875
873.5125918.5125
873.5375918.5375
873.5625918.5625
873.5875918.5875
873.6125918.6125
873.6375918.6375
873.6625918.6625
873.6875918.6875
873.7125918.7125
873.7375918.7375
873.7625918.7625
873.7875918.7875
873.8125918.8125
873.8375918.8375
873.8625918.8625
873.8875918.8875
873.9125918.9125
873.9375918.9375
873.9625918.9625
873.9875918.9875
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
874.5125919.5125
874.5375919.5375
874.5625919.5625
874.5875919.5875
874.6125919.6125
874.6375919.6375
874.6625919.6625
874.6875919.6875
874.7125919.7125
874.7375919.7375
874.7625919.7625
874.7875919.7875
874.8125919.8125
874.8375919.8375
874.8625919.8625
874.8875919.8875
874.9125919.9125
874.9375919.9375
874.9625919.9625
874.9875919.9875
875.0125920.0125
875.0375920.0375
875.0625920.0625
875.0875920.0875
875.1125920.1125
875.1375920.1375
875.1625920.1625
875.1875920.1875
875.2125920.2125
875.2375920.2375
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
12
872.7625917.7625
872.7875917.7875
872.8125917.8125
872.8375917.8375
872.8625917.8625
872.8875917.8875
872.9125917.9125
872.9375917.9375
872.9625917.9625
872.9875917.9875
873.0125918.0125
873.0375918.0375
873.0625918.0625
873.0875918.0875
873.1125918.1125
873.1375918.1375
873.1625918.1625
873.1875918.1875
873.2125918.2125
873.2375918.2375
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
874.0125919.0125
874.0375919.0375
874.0625919.0625
874.0875919.0875
874.1125919.1125
874.1375919.1375
874.1625919.1625
874.1875919.1875
874.2125919.2125
874.2375919.2375
874.2625919.2625
874.2875919.2875
874.3125919.3125
874.3375919.3375
874.3625919.3625
874.3875919.3875
874.4125919.4125
874.4375919.4375
874.4625919.4625
874.4875919.4875
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
875.2625920.2625
875.2875920.2875
875.3125920.3125
875.3375920.3375
875.3625920.3625
875.3875920.3875
875.4125920.4125
875.4375920.4375
875.4625920.4625
875.4875920.4875
875.5125920.5125
875.5375920.5375
875.5625920.5625
875.5875920.5875
875.6125920.6125
875.6375920.6375
875.6625920.6625
875.6875920.6875
875.7125920.7125
875.7375920.7375
Page 13
System Introduction
Channels 1479 - 1628
Ch.TxRxCh.TxRxCh.TxRx
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
875.7625920.7625
875.7875920.7875
875.8125920.8125
875.8375920.8375
875.8625920.8625
875.8875920.8875
875.9125920.9125
875.9375920.9375
875.9625920.9625
875.9875920.9875
876.0125921.0125
876.0375921.0375
876.0625921.0625
876.0875921.0875
876.1125921.1125
876.1375921.1375
876.1625921.1625
876.1875921.1875
876.2125921.2125
876.2375921.2375
876.2625921.2625
876.2875921.2875
876.3125921.3125
876.3375921.3375
876.3625921.3625
876.3875921.3875
876.4125921.4125
876.4375921.4375
876.4625921.4625
876.4875921.4875
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
877.0125922.0125
877.0375922.0375
877.0625922.0625
877.0875922.0875
877.1125922.1125
877.1375922.1375
877.1625922.1625
877.1875922.1875
877.2125922.2125
877.2375922.2375
877.2625922.2625
877.2875922.2875
877.3125922.3125
877.3375922.3375
877.3625922.3625
877.3875922.3875
877.4125922.4125
877.4375922.4375
877.4625922.4625
877.4875922.4875
877.5125922.5125
877.5375922.5375
877.5625922.5625
877.5875922.5875
877.6125922.6125
877.6375922.6375
877.6625922.6625
877.6875922.6875
877.7125922.7125
877.7375922.7375
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
878.2625923.2625
878.2875923.2875
878.3125923.3125
878.3375923.3375
878.3625923.3625
878.3875923.3875
878.4125923.4125
878.4375923.4375
878.4625923.4625
878.4875923.4875
878.5125923.5125
878.5375923.5375
878.5625923.5625
878.5875923.5875
878.6125923.6125
878.6375923.6375
878.6625923.6625
878.6875923.6875
878.7125923.7125
878.7375923.7375
878.7625923.7625
878.7875923.7875
878.8125923.8125
878.8375923.8375
878.8625923.8625
878.8875923.8875
878.9125923.9125
878.9375923.9375
878.9625923.9625
878.9875923.9875
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
876.5125921.5125
876.5375921.5375
876.5625921.5625
876.5875921.5875
876.6125921.6125
876.6375921.6375
876.6625921.6625
876.6875921.6875
876.7125921.7125
876.7375921.7375
876.7625921.7625
876.7875921.7875
876.8125921.8125
876.8375921.8375
876.8625921.8625
876.8875921.8875
876.9125921.9125
876.9375921.9375
876.9625921.9625
876.9875921.9875
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
877.7625922.7625
877.7875922.7875
877.8125922.8125
877.8375922.8375
877.8625922.8625
877.8875922.8875
877.9125922.9125
877.9375922.9375
877.9625922.9625
877.9875922.9875
878.0125923.0125
878.0375923.0375
878.0625923.0625
878.0875923.0875
878.1125923.1125
878.1375923.1375
878.1625923.1625
878.1875923.1875
878.2125923.2125
878.2375923.2375
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
879.0125924.0125
879.0375924.0375
879.0625924.0625
879.0875924.0875
879.1125924.1125
879.1375924.1375
879.1625924.1625
879.1875924.1875
879.2125924.2125
879.2375924.2375
879.2625924.2625
879.2875924.2875
879.3125924.3125
879.3375924.3375
879.3625924.3625
879.3875924.3875
879.4125924.4125
879.4375924.4375
879.4625924.4625
879.4875924.4875
13
Page 14
System Introduction
Channels 1629 - 1778
Ch.TxRxCh.TxRxCh.TxRx
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
879.5125924.5125
879.5375924.5375
879.5625924.5625
879.5875924.5875
879.6125924.6125
879.6375924.6375
879.6625924.6625
879.6875924.6875
879.7125924.7125
879.7375924.7375
879.7625924.7625
879.7875924.7875
879.8125924.8125
879.8375924.8375
879.8625924.8625
879.9125924.9125
879.9375924.9375
879.9625924.9625
879.9875924.9875
880.0125925.0125
880.0375925.0375
880.0625925.0625
880.0875925.0875
880.1125925.1125
880.1375925.1375
880.1625925.1625
880.1875925.1875
880.2125925.2125
880.2375925.2375
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
880.7625925.7625
880.7875925.7875
880.8125925.8125
880.8375925.8375
880.8625925.8625
880.8875925.8875
880.9125925.9125
880.9375925.9375
880.9625925.9625
880.9875925.9875
881.0125926.0125
881.0375926.0375
881.0625926.0625
881.0875926.0875
881.1125926.1125
881.1625926.1625
881.1875926.1875
881.2125926.2125
881.2375926.2375
881.2625926.2625
881.2875926.2875
881.3125926.3125
881.3375926.3375
881.3625926.3625
881.3875926.3875
881.4125926.4125
881.4375926.4375
881.4625926.4625
881.4875926.4875
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
882.0125927.0125
882.0375927.0375
882.0625927.0625
882.0875927.0875
882.1125927.1125
882.1375927.1375
882.1625927.1625
882.1875927.1875
882.2125927.2125
882.2375927.2375
882.2625927.2625
882.2875927.2875
882.3125927.3125
882.3375927.3375
882.3875927.3875
882.4125927.4125
882.4375927.4375
882.4625927.4625
882.4875927.4875
882.5125927.5125
882.5375927.5375
882.5625927.5625
882.5875927.5875
882.6125927.6125
882.6375927.6375
882.6625927.6625
882.6875927.6875
882.7125927.7125
882.7375927.7375
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
14
880.2625925.2625
880.2875925.2875
880.3125925.3125
880.3375925.3375
880.3625925.3625
880.3875925.3875
880.4125925.4125
880.4375925.4375
880.4625925.4625
880.4875925.4875
880.5125925.5125
880.5375925.5375
880.5625925.5625
880.5875925.5875
880.6125925.6125
880.6375925.6375
880.6625925.6625
880.6875925.6875
880.7125925.7125
880.7375925.7375
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
881.5125926.5125
881.5375926.5375
881.5625926.5625
881.5875926.5875
881.6125926.6125
881.6375926.6375
881.6625926.6625
881.6875926.6875
881.7125926.7125
881.7375926.7375
881.7625926.7625
881.7875926.7875
881.8125926.8125
881.8375926.8375
881.8625926.8625
881.8875926.8875
881.9125926.9125
881.9375926.9375
881.9625926.9625
881.9875926.9875
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
882.7625927.7625
882.7875927.7875
882.8125927.8125
882.8375927.8375
882.8625927.8625
882.8875927.8875
882.9125927.9125
882.9375927.9375
882.9625927.9625
882.9875927.9875
883.0125928.0125
883.0375928.0375
883.0625928.0625
883.0875928.0875
883.1125928.1125
883.1375928.1375
883.1625928.1625
883.1875928.1875
883.2125928.2125
883.2375928.2375
Page 15
System Introduction
Channels 1779 - 1928
Ch.TxRxCh.TxRxCh.TxRx
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
883.2625928.2625
883.2875928.2875
883.3125928.3125
883.3375928.3375
883.3625928.3625
883.3875928.3875
883.4125928.4125
883.4375928.4375
883.4625928.4625
883.4875928.4875
883.5125928.5125
883.5375928.5375
883.5625928.5625
883.5875928.5875
883.6125928.6125
883.6375928.6375
883.6625928.6625
883.6875928.6875
883.7125928.7125
883.7375928.7375
883.7625928.7625
883.7875928.7875
883.8125928.8125
883.8375928.8375
883.8625928.8625
883.8875928.8875
883.9125928.9125
883.9375928.9375
883.9625928.9625
883.9875928.9875
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
884.5125929.5125
884.5375929.5375
884.5625929.5625
884.5875929.5875
884.6125929.6125
884.6375929.6375
884.6625929.6625
884.6875929.6875
884.7125929.7125
884.7375929.7375
884.7625929.7625
884.7875929.7875
884.8125929.8125
884.8375929.8375
884.8625929.8625
884.8875929.8875
884.9125929.9125
884.9375929.9375
884.9625929.9625
884.9875929.9875
885.0125930.0125
885.0375930.0375
885.0625930.0625
885.0875930.0875
885.1125930.1125
885.1375930.1375
885.1625930.1625
885.1875930.1875
885.2125930.2125
885.2375930.2375
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
885.7625930.7625
885.7875930.7875
885.8125930.8125
885.8375930.8375
885.8625930.8625
885.8875930.8875
885.9125930.9125
885.9375930.9375
885.9625930.9625
885.9875930.9875
886.0125931.0125
886.0375931.0375
886.0625931.0625
886.0875931.0875
886.1125931.1125
886.1375931.1375
886.1625931.1625
886.1875931.1875
886.2125931.2125
886.2375931.2375
886.2625931.2625
886.2875931.2875
886.3125931.3125
886.3375931.3375
886.3625931.3625
886.3875931.3875
886.4125931.4125
886.4375931.4375
886.4625931.4625
886.4875931.4875
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
884.0125929.0125
884.0375929.0375
884.0625929.0625
884.0875929.0875
884.1125929.1125
884.1375929.1375
884.1625929.1625
884.1875929.1875
884.2125929.2125
884.2375929.2375
884.2625929.2625
884.2875929.2875
884.3125929.3125
884.3375929.3375
884.3625929.3625
884.3875929.3875
884.4125929.4125
884.4375929.4375
884.4625929.4625
884.4875929.4875
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
885.2625930.2625
885.2875930.2875
885.3125930.3125
885.3375930.3375
885.3625930.3625
885.3875930.3875
885.4125930.4125
885.4375930.4375
885.4625930.4625
885.4875930.4875
885.5125930.5125
885.5375930.5375
885.5625930.5625
885.5875930.5875
885.6125930.6125
885.6375930.6375
885.6625930.6625
885.6875930.6875
885.7125930.7125
885.7375930.7375
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
886.5125931.5125
886.5375931.5375
886.5625931.5625
886.5875931.5875
886.6125931.6125
886.6375931.6375
886.6625931.6625
886.6875931.6875
886.7125931.7125
886.7375931.7375
886.7625931.7625
886.7875931.7875
886.8125931.8125
886.8375931.8375
886.8625931.8625
886.8875931.8875
886.9125931.9125
886.9375931.9375
886.9625931.9625
886.9875931.9875
15
Page 16
System Introduction
Channels 1929 - 2047
Ch.TxRxCh.TxRxCh.TxRx
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
887.0125932.0125
887.0375932.0375
887.0625932.0625
887.0875932.0875
887.1125932.1125
887.1375932.1375
887.1625932.1625
887.1875932.1875
887.2125932.2125
887.2375932.2375
887.2625932.2625
887.2875932.2875
887.3125932.3125
887.3375932.3375
887.3625932.3625
887.3875932.3875
887.4125932.4125
887.4375932.4375
887.4625932.4625
887.4875932.4875
887.5125932.5125
887.5375932.5375
887.5625932.5625
887.5875932.5875
887.6125932.6125
887.6375932.6375
887.6625932.6625
887.6875932.6875
887.7125932.7125
887.7375932.7375
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
888.2625933.2625
888.2875933.2875
888.3125933.3125
888.3375933.3375
888.3625933.3625
888.3875933.3875
888.4125933.4125
888.4375933.4375
888.4625933.4625
888.4875933.4875
888.5125933.5125
888.5375933.5375
888.5625933.5625
888.5875933.5875
888.6125933.6125
888.6375933.6375
888.6625933.6625
888.6875933.6875
888.7125933.7125
888.7375933.7375
888.7625933.7625
888.7875933.7875
888.8125933.8125
888.8375933.8375
888.8625933.8625
888.8875933.8875
888.9125933.9125
888.9375933.9375
888.9625933.9625
888.9875933.9875
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
889.5125934.5125
889.5375934.5375
889.5625934.5625
889.5875934.5875
889.6125934.6125
889.6375934.6375
889.6625934.6625
889.6875934.6875
889.7125934.7125
889.7375934.7375
889.7625934.7625
889.7875934.7875
889.8125934.8125
889.8375934.8375
889.8625934.8625
889.8875934.8875
889.9125934.9125
889.9375934.9375
889.9625934.9625
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
197
1972
1973
1974
1975
1976
1977
1978
16
887.7625932.7625
887.7875932.7875
887.8125932.8125
887.8375932.8375
887.8625932.8625
887.8875932.8875
887.9125932.9125
887.9375932.9375
887.9625932.9625
887.9875932.9875
888.0125933.0125
888.0375933.0375
888.0625933.0625
888.0875933.0875
888.1125933.1125
888.1375933.1375
888.1625933.1625
888.1875933.1875
888.2125933.2125
888.2375933.2375
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
889.0125934.0125
889.0375934.0375
889.0625934.0625
889.0875934.0875
889.1125934.1125
889.1375934.1375
889.1625934.1625
889.1875934.1875
889.2125934.2125
889.2375934.2375
889.2625934.2625
889.2875934.2875
889.3125934.3125
889.3375934.3375
889.3625934.3625
889.3875934.3875
889.4125934.4125
889.4375934.4375
889.4625934.4625
889.4875934.4875
Page 17
System Introduction
Table 2: Channels 0 - 600
Channels 0 - 149
Ch.TxRxCh.TxRxCh.TxRx
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
889.9875934.9875
890.0125935.0125
890.0375935.0375
890.0625935.0625
890.0875935.0875
890.1125935.1125
890.1375935.1375
890.1625935.1625
890.1875935.1875
890.2125935.2125
890.2375935.2375
890.2625935.2625
890.2875935.2875
890.3125935.3125
890.3375935.3375
890.3625935.3625
890.3875935.3875
890.4125935.4125
890.4375935.4375
890.4625935.4625
890.4875935.4875
890.5125935.5125
890.5375935.5375
890.5625935.5625
890.5875935.5875
890.6125935.6125
890.6375935.6375
890.6625935.6625
890.6875935.6875
890.7125935.7125
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
891.2375936.2375
891.2625936.2625
891.2875936.2875
891.3125936.3125
891.3375936.3375
891.3625936.3625
891.3875936.3875
891.4125936.4125
891.4375936.4375
891.4625936.4625
891.4875936.4875
891.5125936.5125
891.5375936.5375
891.5625936.5625
891.5875936.5875
891.6125936.6125
891.6375936.6375
891.6625936.6625
891.6875936.6875
891.7125936.7125
891.7375936.7375
891.7625936.7625
891.7875936.7875
891.8125936.8125
891.8375936.8375
891.8625936.8625
891.8875936.8875
891.9125936.9125
891.9375936.9375
891.9625936.9625
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
892.4875937.4875
892.5125937.5125
892.5375937.5375
892.5625937.5625
892.5875937.5875
892.6125937.6125
892.6375937.6375
892.6625937.6625
892.6875937.6875
892.7125937.7125
892.7375937.7375
892.7625937.7625
892.7875937.7875
892.8125937.8125
892.8375937.8375
892.8625937.8625
892.8875937.8875
892.9125937.9125
892.9375937.9375
892.9625937.9625
892.9875937.9875
893.0125938.0125
893.0375938.0375
893.0625938.0625
893.0875938.0875
893.1125938.1125
893.1375938.1375
893.1625938.1625
893.1875938.1875
893.2125938.2125
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
890.7375935.7375
890.7625935.7625
890.7875935.7875
890.8125935.8125
890.8375935.8375
890.8625935.8625
890.8875935.8875
890.9125935.9125
890.9375935.9375
890.9625935.9625
890.9875935.9875
891.0125936.0125
891.0375936.0375
891.0625936.0625
891.0875936.0875
891.1125936.1125
891.1375936.1375
891.1625936.1625
891.1875936.1875
891.2125936.2125
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
891.9875936.9875
892.0125937.0125
892.0375937.0375
892.0625937.0625
892.0875937.0875
892.1125937.1125
892.1375937.1375
892.1625937.1625
892.1875937.1875
892.2125937.2125
892.2375937.2375
892.2625937.2625
892.2875937.2875
892.3125937.3125
892.3375937.3375
892.3625937.3625
892.3875937.3875
892.4125937.4125
892.4375937.4375
892.4625937.4625
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
893.2375938.2375
893.2625938.2625
893.2875938.2875
893.3125938.3125
893.3375938.3375
893.3625938.3625
893.3875938.3875
893.4125938.4125
893.4375938.4375
893.4625938.4625
893.4875938.4875
893.5125938.5125
893.5375938.5375
893.5625938.5625
893.5875938.5875
893.6125938.6125
893.6375938.6375
893.6625938.6625
893.6875938.6875
893.7125938.7125
17
Page 18
System Introduction
Channels 150 - 299
Ch.TxRxCh.TxRxCh.TxRx
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
893.7375938.7375
893.7625938.7625
893.7875938.7875
893.8125938.8125
893.8375938.8375
893.8625938.8625
893.8875938.8875
893.9125938.9125
893.9375938.9375
893.9625938.9625
893.9875938.9875
894.0125939.0125
894.0375939.0375
894.0625939.0625
894.0875939.0875
894.1125939.1125
894.1375939.1375
894.1625939.1625
894.1875939.1875
894.2125939.2125
894.2375939.2375
894.2625939.2625
894.2875939.2875
894.3125939.3125
894.3375939.3375
894.3625939.3625
894.3875939.3875
894.4125939.4125
894.4375939.4375
894.4625939.4625
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
894.9875939.9875
895.0125940.0125
895.0375940.0375
895.0625940.0625
895.0875940.0875
895.1125940.1125
895.1375940.1375
895.1625940.1625
895.1875940.1875
895.2125940.2125
895.2375940.2375
895.2625940.2625
895.2875940.2875
895.3125940.3125
895.3375940.3375
895.3625940.3625
895.3875940.3875
895.4125940.4125
895.4375940.4375
895.4625940.4625
895.4875940.4875
895.5125940.5125
895.5375940.5375
895.5625940.5625
895.5875940.5875
895.6125940.6125
895.6375940.6375
895.6625940.6625
895.6875940.6875
895.7125940.7125
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
896.2375941.2375
896.2625941.2625
896.2875941.2875
896.3125941.3125
896.3375941.3375
896.3625941.3625
896.3875941.3875
896.4125941.4125
896.4375941.4375
896.4625941.4625
896.4875941.4875
896.5125941.5125
896.5375941.5375
896.5625941.5625
896.5875941.5875
896.6125941.6125
896.6375941.6375
896.6625941.6625
896.6875941.6875
896.7125941.7125
896.7375941.7375
896.7625941.7625
896.7875941.7875
896.8125941.8125
896.8375941.8375
896.8625941.8625
896.8875941.8875
896.9125941.9125
896.9375941.9375
896.9625941.9625
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
18
894.4875939.4875
894.5125939.5125
894.5375939.5375
894.5625939.5625
894.5875939.5875
894.6125939.6125
894.6375939.6375
894.6625939.6625
894.6875939.6875
894.7125939.7125
894.7375939.7375
894.7625939.7625
894.7875939.7875
894.8125939.8125
894.8375939.8375
894.8625939.8625
894.8875939.8875
894.9125939.9125
894.9375939.9375
894.9625939.9625
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
895.7375940.7375
895.7625940.7625
895.7875940.7875
895.8125940.8125
895.8375940.8375
895.8625940.8625
895.8875940.8875
895.9125940.9125
895.9375940.9375
895.9625940.9625
895.9875940.9875
896.0125941.0125
896.0375941.0375
896.0625941.0625
896.0875941.0875
896.1125941.1125
896.1375941.1375
896.1625941.1625
896.1875941.1875
896.2125941.2125
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
896.9875941.9875
897.0125942.0125
897.0375942.0375
897.0625942.0625
897.0875942.0875
897.1125942.1125
897.1375942.1375
897.1625942.1625
897.1875942.1875
897.2125942.2125
897.2375942.2375
897.2625942.2625
897.2875942.2875
897.3125942.3125
897.3375942.3375
897.3625942.3625
897.3875942.3875
897.4125942.4125
897.4375942.4375
897.4625942.4625
Page 19
System Introduction
Channels 300 - 449
Ch.TxRxCh.TxRxCh.TxRx
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
897.4875942.4875
897.5125942.5125
897.5375942.5375
897.5625942.5625
897.5875942.5875
897.6125942.6125
897.6375942.6375
897.6625942.6625
897.6875942.6875
897.7125942.7125
897.7375942.7375
897.7625942.7625
897.7875942.7875
897.8125942.8125
897.8375942.8375
897.8625942.8625
897.8875942.8875
897.9125942.9125
897.9375942.9375
897.9625942.9625
897.9875942.9875
898.0125943.0125
898.0375943.0375
898.0625943.0625
898.0875943.0875
898.1125943.1125
898.1375943.1375
898.1625943.1625
898.1875943.1875
898.2125943.2125
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
898.7375943.7375
898.7625943.7625
898.7875943.7875
898.8125943.8125
898.8375943.8375
898.8625943.8625
898.8875943.8875
898.9125943.9125
898.9375943.9375
898.9625943.9625
898.9875943.9875
899.0125944.0125
899.0375944.0375
899.0625944.0625
899.0875944.0875
899.1125944.1125
899.1375944.1375
899.1625944.1625
899.1875944.1875
899.2125944.2125
899.2375944.2375
899.2625944.2625
899.2875944.2875
899.3125944.3125
899.3375944.3375
899.3625944.3625
899.3875944.3875
899.4125944.4125
899.4375944.4375
899.4625944.4625
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
899.9875944.9875
900.0125945.0125
900.0375945.0375
900.0625945.0625
900.0875945.0875
900.1125945.1125
900.1375945.1375
900.1625945.1625
900.1875945.1875
900.2125945.2125
900.2375945.2375
900.2625945.2625
900.2875945.2875
900.3125945.3125
900.3375945.3375
900.3625945.3625
900.3875945.3875
900.4125945.4125
900.4375945.4375
900.4625945.4625
900.4875945.4875
900.5125945.5125
900.5375945.5375
900.5625945.5625
900.5875945.5875
900.6125945.6125
900.6375945.6375
900.6625945.6625
900.6875945.6875
900.7125945.7125
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
898.2375943.2375
898.2625943.2625
898.2875943.2875
898.3125943.3125
898.3375943.3375
898.3625943.3625
898.3875943.3875
898.4125943.4125
898.4375943.4375
898.4625943.4625
898.4875943.4875
898.5125943.5125
898.5375943.5375
898.5625943.5625
898.5875943.5875
898.6125943.6125
898.6375943.6375
898.6625943.6625
898.6875943.6875
898.7125943.7125
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
899.4875944.4875
899.5125944.5125
899.5375944.5375
899.5625944.5625
899.5875944.5875
899.6125944.6125
899.6375944.6375
899.6625944.6625
899.6875944.6875
899.7125944.7125
899.7375944.7375
899.7625944.7625
899.7875944.7875
899.8125944.8125
899.8375944.8375
899.8625944.8625
899.8875944.8875
899.9125944.9125
899.9375944.9375
899.9625944.9625
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
900.7375945.7375
900.7625945.7625
900.7875945.7875
900.8125945.8125
900.8375945.8375
900.8625945.8625
900.8875945.8875
900.9125945.9125
900.9375945.9375
900.9625945.9625
900.9875945.9875
901.0125946.0125
901.0375946.0375
901.0625946.0625
901.0875946.0875
901.1125946.1125
901.1375946.1375
901.1625946.1625
901.1875946.1875
901.2125946.2125
19
Page 20
System Introduction
Channels 450 - 600
Ch.TxRxCh.TxRxCh.TxRx
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
901.2375946.2375
901.2625946.2625
901.2875946.2875
901.3125946.3125
901.3375946.3375
901.3625946.3625
901.3875946.3875
901.4125946.4125
901.4375946.4375
901.4625946.4625
901.4875946.4875
901.5125946.5125
901.5375946.5375
901.5625946.5625
901.5875946.5875
901.6125946.6125
901.6375946.6375
901.6625946.6625
901.6875946.6875
901.7125946.7125
901.7375946.7375
901.7625946.7625
901.7875946.7875
901.8125946.8125
901.8375946.8375
901.8625946.8625
901.8875946.8875
901.9125946.9125
901.9375946.9375
901.9625946.9625
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
902.4875947.4875
902.5125947.5125
902.5375947.5375
902.5625947.5625
902.5875947.5875
902.6125947.6125
902.6375947.6375
902.6625947.6625
902.6875947.6875
902.7125947.7125
902.7375947.7375
902.7625947.7625
902.7875947.7875
902.8125947.8125
902.8375947.8375
902.8625947.8625
902.8875947.8875
902.9125947.9125
902.9375947.9375
902.9625947.9625
902.9875947.9875
903.0125948.0125
903.0375948.0375
903.0625948.0625
903.0875948.0875
903.1125948.1125
903.1375948.1375
903.1625948.1625
903.1875948.1875
903.2125948.2125
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
903.7375948.7375
903.7625948.7625
903.7875948.7875
903.8125948.8125
903.8375948.8375
903.8625948.8625
903.8875948.8875
903.9125948.9125
903.9375948.9375
903.9625948.9625
903.9875948.9875
904.0125949.0125
904.0375949.0375
904.0625949.0625
904.0875949.0875
904.1125949.1125
904.1375949.1375
904.1625949.1625
904.1875949.1875
904.2125949.2125
904.2375949.2375
904.2625949.2625
904.2875949.2875
904.3125949.3125
904.3375949.3375
904.3625949.3625
904.3875949.3875
904.4125949.4125
904.4375949.4375
904.4625949.4625
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
20
901.9875946.9875
902.0125947.0125
902.0375947.0375
902.0625947.0625
902.0875947.0875
902.1125947.1125
902.1375947.1375
902.1625947.1625
902.1875947.1875
902.2125947.2125
902.2375947.2375
902.2625947.2625
902.2875947.2875
902.3125947.3125
902.3375947.3375
902.3625947.3625
902.3875947.3875
902.4125947.4125
902.4375947.4375
902.4625947.4625
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
903.2375948.2375
903.2625948.2625
903.2875948.2875
903.3125948.3125
903.3375948.3375
903.3625948.3625
903.3875948.3875
903.4125948.4125
903.4375948.4375
903.4625948.4625
903.4875948.4875
903.5125948.5125
903.5375948.5375
903.5625948.5625
903.5875948.5875
903.6125948.6125
903.6375948.6375
903.6625948.6625
903.6875948.6875
903.7125948.7125
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
904.4875949.4875
904.5125949.5125
904.5375949.5375
904.5625949.5625
904.5875949.5875
904.6125949.6125
904.6375949.6375
904.6625949.6625
904.6875949.6875
904.7125949.7125
904.7375949.7375
904.7625949.7625
904.7875949.7875
904.8125949.8125
904.8375949.8375
904.8625949.8625
904.8875949.8875
904.9125949.9125
904.9375949.9375
904.9625949.9625
904.9875949.9875
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