ITU Grid / Channel Spacing

INTERNATIONAL TELECOMMUNICATION UNION (ITU) GRID TABLE

Channel
#

Frequency
(GHz)

Wavelength
(nm)

222

184800

1622.25

218

184850

1621.81

213

184900

1621.38

209

184950

1620.94

205

185000

1620.50

200

185050

1620.06

196

185100

1619.62

191

185150

1619.19

187

185200

1618.75

183

185250

1618.31

178

185300

1617.88

174

185350

1617.44

170

185400

1617.00

165

185450

1616.57

161

185500

1616.13

157

185550

1615.70

152

185600

1615.26

148

185650

1614.83

143

185700

1614.39

139

185750

1613.96

135

185800

1613.52

130

185850

1613.09

126

185900

1613.65

122

185950

1612.22

117

186000

1611.79

113

186050

1611.35

109

186100

1610.92

104

186150

1610.49

100

186200

1610.06

096

186250

1609.62

091

186300

1609.19

087

186350

1608.76

083

186400

1608.33

079

186450

1607.90

074

186500

1607.47

070

186550

1607.04

066

186600

1606.60

061

186650

1606.17

057

186700

1605.74

053

186750

1605.31

048

186800

1604.88

044

186850

1604.46

040

186900

1604.03

036

186950

1603.60

031

187000

1603.17

027

187050

1602.74

023

187100

1602.31

018

187150

1601.88

014

187200

1601.46

010

187250

1601.03

006

187300

1600.60

001

187350

1600.17

997

187400

1599.75

993

187450

1599.32

988

187500

1598.89

984

187550

1598.47

980

187600

1598.04

976

187650

1592.62

971

187700

1597.19

967

187750

1596.76

963

187800

1596.34

959

187850

1595.91

954

187900

1595.49

950

187950

1595.06

946

188000

1594.64

942

188050

1594.22

937

188100

1593.79

933

188150

1593.37

929

188200

1592.95

925

188250

1592.52

921

188300

1592.10

916

188350

1591.68

912

188400

1591.26

908

188450

1590.83

904

188500

1590.41

899

188550

1589.99

895

188600

1589.57

891

188650

1589.15

887

188700

1588.73

Channel
#

Frequency
(GHz)

Wavelength
(nm)

883

188750

1588.30

878

188800

1587.88

874

188850

1587.46

870

188900

1587.04

866

188950

1586.62

862

189000

1586.20

857

189050

1585.78

853

189100

1585.36

849

189150

1584.95

845

189200

1584.53

841

189250

1584.11

836

189300

1583.69

832

189350

1583.27

828

189400

1582.85

824

189450

1582.44

820

189500

1582.02

816

189550

1581.60

811

189600

1581.18

807

189650

1580.77

803

189700

1580.35

799

189750

1579.93

795

189800

1579.52

791

189850

1579.10

786

189900

1578.69

782

189950

1578.27

778

190000

1577.86

774

190050

1577.44

770

190100

1577.03

766

190150

1576.61

762

190200

1576.20

758

190250

1575.78

753

190300

1575.37

749

190350

1574.95

745

190400

1574.54

741

190450

1574.13

737

190500

1573.71

733

190550

1573.30

728

190600

1572.89

724

190650

1572.48

720

190700

1572.06

716

190750

1571.65

712

190800

1571.24

708

190850

1570.83

704

190900

1570.42

700

190950

1570.01

695

191000

1569.59

691

191050

1569.18

687

191100

1568.77

683

191150

1568.36

679

191200

1567.95

675

191250

1567.54

671

191300

1567.13

667

191350

1566.72

663

191400

1566.31

659

191450

1565.90

655

191500

1565.50

650

191550

1565.09

646

191600

1564.68

642

191650

1564.27

638

191700

1563.86

634

191750

1563.45

630

191800

1563.05

626

191850

1562.64

622

191900

1562.23

618

191950

1561.83

614

192000

1561.42

610

192050

1561.01

606

192100

1560.61

602

192150

1560.20

597

192200

1559.79

593

192250

1559.39

589

192300

1558.98

585

192350

1558.58

581

192400

1558.17

577

192450

1557.77

573

192500

1557.36

569

192550

1556.96

565

192600

1556.55

561

192650

1556.15

Channel
#

Frequency
(GHz)

Wavelength
(nm)

557

192700

1555.75

553

192750

1555.34

549

192800

1554.94

545

192850

1554.54

541

192900

1554.13

537

192950

1553.73

533

193000

1553.33

529

193050

1552.93

525

193100

1552.52

521

193150

1552.12

517

193200

1551.72

513

193250

1551.32

509

193300

1550.92

505

193350

1550.52

501

193400

1550.12

497

193450

1549.72

493

193500

1549.32

489

193550

1548.91

485

193600

1548.51

481

193650

1548.11

477

193700

1547.72

473

193750

1547.32

469

193800

1546.92

465

193850

1546.52

461

193900

1546.12

457

193950

1545.72

453

194000

1545.32

449

194050

1544.92

445

194100