CODAN-MIB :: wvChannelNo

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCODAN-MIBwvChannelNo

wvChannelNo

Module: CODAN-MIB

OID (symbolic): CODAN-MIB::wvChannelNo

OID (numeric): 1.3.6.1.4.1.23304.1.1.1.1.5

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: The frequency channel to work on. Each channel corresponds to a given
    pair of transmit and receive frequencies, depending on the ODU's
    Standard (US/European), Spectrum Range Allocation (38 Ghz, 23 Ghz,
    18 Ghz, etc...), Duplex Spacing (700 Mhz, 1200 Mhz, 1010 Mhz, etc...)
    and Frequency Band (1, 2, 3 or 4) (see wvOduPartNo below).

    The channel nos. spacing follow the h/w resolution, that is 0.25 Mhz.

    According to the FCC standard, each chosen frequency has a minimum spacing
    of 2.5 Mhz, therefore on FCC allocations the first and last allowed frequency
    centers are 1.25 Mhz from the start/end of the below specified bands, leaving
    5 channels on start side and 4 on the end side not selectable (maybe more,
    depending on additional restrictions specific to each Duplex Spacing).

    According to the ETSI standard, each chosen frequency has a minimum spacing
    of 3.5 Mhz, therefore on ETSI allocations the first and last allowed frequency
    centers are 1.75 Mhz from the start/end of the below specified bands, leaving
    7 channels on start side and 6 on the end side not selectable (maybe more,
    depending on additional restrictions specific to each Duplex Spacing).


    *******************************************************
    *** For 38 Ghz, according to ITU-R F.749.1 standard ***
    *******************************************************

    ### In the American (FCC) model ###

    === Duplex Spacing: 700 Mhz ===

    The 38600-40000 Mhz frequency space is divided into 4 350 Mhz bands:

    1. 38600-38950
    2. 38950-39300
    3. 39300-39650
    4. 39650-40000

    Since the h/w resolution is 0.25 Mhz, we have the 350 Mhz on each band
    sub-divided into 0 - 1399 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 38600.00 + (Band - 1) * 350 + wvChannelNo * 0.25
    for Band = 1,2,3,4

    Since the spacing between Tx and Rx is 700 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 700
    Rx2 = Tx2 + 700
    Rx3 = Tx3 - 700
    Rx4 = Tx4 - 700

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 1400-first

    ### In the European (ETSI) model ###

    === Duplex Spacing: 1260 Mhz ===

    The 37000-39500 Mhz frequency space is divided into 4 560 Mhz bands
    (after subtracting 260 MHz guard bands):

    1. 37058-37618
    2. 37618-38178
    3. 38318-38878
    4. 38878-39438

    Since the h/w resolution is 0.25 Mhz, we have the 560 Mhz on each band
    sub-divided into 0 - 2239 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating frequencies (center point) are calculated by:
    TxBand = 37058.00 + (Band - 1) * 630 + wvChannelNo * 0.25
    for Band = 1,3
    and
    TxBand = 37618.00 + (Band - 2) * 630 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 1260 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1260
    Rx2 = Tx2 + 1260
    Rx3 = Tx3 - 1260
    Rx4 = Tx4 - 1260

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 2240-first.

    ********************************************************
    *** For 23 Ghz, according to ITU-R 637.2 standard ***
    ********************************************************

    ### In the American (FCC) model ###

    === Duplex Spacing: 1200 Mhz ===

    The 21200-23600 Mhz frequency space is divided into 4 600 Mhz bands:

    1. 21200-21800
    2. 21800-22400
    3. 22400-23000
    4. 23000-23600

    Since the h/w resolution is 0.25 Mhz, we have the 600 Mhz on each band
    sub-divided into 0 - 2399 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 21200.00 + (Band - 1) * 600 + wvChannelNo * 0.25
    for Band = 1,2,3,4

    Since the spacing between Tx and Rx is 1200 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1200
    Rx2 = Tx2 + 1200
    Rx3 = Tx3 - 1200
    Rx4 = Tx4 - 1200

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 2400-first


    ### In the European (ETSI) model ###

    === Duplex Spacing: 1008 Mhz ===

    On the 22000-23600 Mhz frequency space there are 2 592 Mhz bands
    (named bands 1 and 3 for compatibility), with a not used
    'hole' of 400 Mhz in the middle, and additional guards on start and
    end of each band, depending on the channel spacing used (note that
    not all the 592 Mhz space is used):

    1. 22000-22592
    3. 23008-23600

    Since the h/w resolution is 0.25 Mhz, we have the 592 Mhz on each band
    sub-divided into 0 - 2367 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 22000.00 + (Band - 1) * 504 + wvChannelNo * 0.25
    for Band = 1,3

    Since the spacing between Tx and Rx is 1008 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1008
    Rx3 = Tx3 - 1008

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is given in the following table:

    wvChannelSpacing      First     Last
    ================      =====     ====

       3.5 Mhz              18      2356
       7.0 Mhz              46      2342
      14.0 Mhz              60      2300
      28.0 Mhz              88      2216
      56.0 Mhz             312      2104


    === Duplex Spacing: 1200 Mhz ===

    The 21200-23600 Mhz frequency space is divided into 4 600 Mhz bands:

    1. 21200-21800
    2. 21800-22400
    3. 22400-23000
    4. 23000-23600

    Since the h/w resolution is 0.25 Mhz, we have the 600 Mhz on each band
    sub-divided into 0 - 2399 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 21200.00 + (Band - 1) * 600 + wvChannelNo * 0.25
    for Band = 1,2,3,4

    Since the spacing between Tx and Rx is 1200 Mhz, the the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1200
    Rx2 = Tx2 + 1200
    Rx3 = Tx3 - 1200
    Rx4 = Tx4 - 1200

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 2400-first

    === Duplex Spacing: 1232 Mhz ===

    The 21200-23600 Mhz frequency space is divided into 4 560 Mhz bands, with
    not used 'holes' of 24 Mhz in the beginning and end of the range and 112 Mhz
    in the middle:

    1. 21224-21784
    2. 21784-22344
    3. 22456-23016
    4. 23016-23576

    Since the h/w resolution is 0.25 Mhz, we have the 560 Mhz on each band
    sub-divided into 0 - 2239 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating frequencies (center point) are calculated by:
    TxBand = 21224.00 + (Band - 1) * 616 + wvChannelNo * 0.25
    for Band = 1,3
    and
    TxBand = 21784.00 + (Band - 2) * 616 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 1232 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1232
    Rx2 = Tx2 + 1232
    Rx3 = Tx3 - 1232
    Rx4 = Tx4 - 1232

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 2240-first.


    ********************************************************
    *** For 18 Ghz, according to ITU-R F.595-5 standard ***
    ********************************************************

    ### In the American (FCC) model ###

    === Duplex Spacing: 1560 Mhz ===

    On the 17700-19700 Mhz frequency space there are 2 440 Mhz bands (named
    bands 1 and 3 for compatibility), with a not used 'hole' of 1120 Mhz
    in the middle:

    1. 17700-18140
    3. 19260-19700

    Since the h/w resolution is 0.25 Mhz, we have the 440 Mhz on each band
    sub-divided into 0 - 1759 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 17700.00 + (Band - 1) * 780 + wvChannelNo * 0.25
    for Band = 1,3

    Since the spacing between Tx and Rx is 1560 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1560
    Rx3 = Tx3 - 1560

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 1760-first

    ### In the European (ETSI) model ###

    === Duplex Spacing: 1010 Mhz ===

    The 17700-19700 Mhz frequency space is divided into 2 522.5 Mhz bands
    (Bands 1 and 3) and 2 467.5 Mhz bands (Bands 2 and 4) with a not used
    'hole' of 20 Mhz in the middle, and additional guards (proportionally
    to the channel spacing used) on start of bands 1/3 and on end of
    bands 2/4:

    1. 17700.0-18222.5
    2. 18208.75-18690.0
    3. 18710.0-19232.5
    4. 19218.75-19700.0

    Since the h/w resolution is 0.25 Mhz, we have the 522.5 Mhz on bands 1,3
    sub-divided into 0 - 2090 channels and the 481.25 Mhz on bands 2,4
    sub-divided into 0 - 1925 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating frequencies (center point) are calculated by:
    TxBand = 17700.00 + (Band - 1) * 505 + wvChannelNo * 0.25
    for Band = 1,3
    and
    TxBand = 18208.75 + (Band - 2) * 505 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 1010 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1010
    Rx2 = Tx2 + 1010
    Rx3 = Tx3 - 1010
    Rx4 = Tx4 - 1010

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is calculated as follows:

    first = wvChannelSpacing*4 - wvChannelSpacing/14 for Bands 1,3
    first = wvChannelSpacing*2 - wvChannelSpacing/28 for Bands 2,4
    last  = 2090 - first(2,4)  for Bands 1,3
    last  = 1925 - first(1,3)  for Bands 2,4

    ***********************************************************
    *** For 26 Ghz, according to EN 300 431 v1.3.1 standard ***
    ***********************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 1008 Mhz ===

    The 24500-26500 Mhz frequency space is divided into 4 448 Mhz bands:

    1. 24549-24997
    2. 24997-25445
    3. 25557-26005
    4. 26005-26453

    Since the h/w resolution is 0.25 Mhz, we have the 448 Mhz on each band
    sub-divided into 0 - 1791 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 24549.00 + (Band - 1) * 504 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = 24597.00 + (Band - 2) * 504 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 1008 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1008
    Rx2 = Tx2 + 1008
    Rx3 = Tx3 - 1008
    Rx4 = Tx4 - 1008

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 1792-first

    **************************************************************
    *** For 15 Ghz, according to CEPT/ERC/REC 12-07 E standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 728 Mhz ===

    The 14500-15350 Mhz frequency space is divided into 2 112+7 Mhz bands:

    1. 14508-14620
    3. 15229-15348

    Since the h/w resolution is 0.25 Mhz, we have the 119 Mhz on each band
    sub-divided into 0 - 475 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 14501.00 + (Band - 1) * 364 + wvChannelNo * 0.25
    for Band = 1,3

    Since the spacing between Tx and Rx is 728 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 728
    Rx3 = Tx3 - 728

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    wvChannelSpacing      First     Last
    ================      =====     ====

       3.5 Mhz               7      441
       7.0 Mhz              14      434
      14.0 Mhz              56      448
      28.0 Mhz              56      392
      56.0 Mhz             112      336

    **************************************************************
    *** For 15 Ghz, according to ITU-R F.636-3 standard        ***
    **************************************************************
    ### In the European (ETSI) model ###

    === Duplex Spacing: 420 Mhz ===

    The 14500-15350 Mhz frequency space is divided into 2 224 Mhz bands
    (Bands 1 and 3) and 2 210 Mhz bands (Bands 2 and 4) :

    1. 14501-14725
    2. 14718-14928
    3. 14921-15145
    4. 15138-15348

    Since the h/w resolution is 0.25 Mhz, we have the 224 Mhz on bands 1,3
    sub-divided into 0 - 895 channels and the 210 Mhz on bands 2,4
    sub-divided into 0 - 839 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating frequencies (center point) are calculated by:
    TxBand = 14501 + (Band - 1) * 210 + wvChannelNo * 0.25
    for Band = 1,3
    and
    TxBand = 14718 + (Band - 2) * 210 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 420 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 420
    Rx2 = Tx2 + 420
    Rx3 = Tx3 - 420
    Rx4 = Tx4 - 420

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is calculated as follows:

                            Band 1,3             Band 2,4
    wvChannelSpacing      First     Last       First     Last
    ================      =====     ====       =====     ====

       3.5 Mhz               7      861           7      805
       7.0 Mhz              14      854          14      798
      14.0 Mhz              56      840          28      812
      28.0 Mhz              56      840          84      756
      56.0 Mhz             112      784         140      700

    **************************************************************
    *** For 15 Ghz,             ???                            ***
    **************************************************************
    ### In the European (ETSI) model ###

    === Duplex Spacing: 315 Mhz ===

    The 14628-15228 Mhz frequency space is divided into 2 139 Mhz bands
    (Bands 1 and 3) and 2 151 Mhz bands (Bands 2 and 4) :

    1. 14628-14767
    2. 14760-14911
    3. 14943-15082
    4. 15075-15226

    Since the h/w resolution is 0.25 Mhz, we have the 139 Mhz on bands 1,3
    sub-divided into 0 - 555 channels and the 151 Mhz on bands 2,4
    sub-divided into 0 - 603 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating frequencies (center point) are calculated by:
    TxBand = 14628 + (Band - 1) * 157.5 + wvChannelNo * 0.25
    for Band = 1,3
    and
    TxBand = 14760 + (Band - 2) * 157.5 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 315 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 315
    Rx2 = Tx2 + 315
    Rx3 = Tx3 - 315
    Rx4 = Tx4 - 315

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is calculated as follows:

                            Band 1,3             Band 2,4
    wvChannelSpacing      First     Last       First     Last
    ================      =====     ====       =====     ====

       3.5 Mhz              10      528          14      588
       7.0 Mhz              24      528          28      588
      14.0 Mhz              80      472          56      560
      28.0 Mhz             136      472          56      504
      56.0 Mhz             192      416         112      448

    **************************************************************
    *** For 13 Ghz, according to CEPT/ERC/REC 12-02 E standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 266 Mhz ===

    The 12750-13250 Mhz frequency space is divided into 4 112 Mhz bands:

    1. 12751-12863
    2. 12863-12975
    3. 13017-13129
    4. 13129-13241

    Since the h/w resolution is 0.25 Mhz, we have the 112 Mhz on each band
    sub-divided into 0 - 447 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 12751.00 + (Band - 1) * 133 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = 12863.00 + (Band - 2) * 133 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 266 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 266
    Rx2 = Tx2 + 266
    Rx3 = Tx3 - 266
    Rx4 = Tx4 - 266

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 448-first

    **************************************************************
    *** For 8 Ghz, according to ITU-R F.386-6 standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 126 Mhz ===

    The 8275-8500 Mhz frequency space is divided into 4 49 Mhz bands:

    1. 8279-8328
    2. 8321-8370
    3. 8405-8454
    4. 8447-8496

    Since the h/w resolution is 0.25 Mhz, we have the 49 Mhz on each band
    sub-divided into 0 - 195 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 8279.00 + (Band - 1) * 63 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = 8321.00 + (Band - 2) * 63 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 126 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 126
    Rx2 = Tx2 + 126
    Rx3 = Tx3 - 126
    Rx4 = Tx4 - 126

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 196-first
    Valid wvChannelSpacing are 3.5MHz,7MHz & 14MHz.

    **************************************************************
    *** For 8 Ghz, according to ITU-R F.386-6 standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 119 Mhz ===

    The 8275-8500 Mhz frequency space is divided into 4 56 Mhz bands:

    1. 8279-8335
    2. 8321-8377
    3. 8398-8454
    4. 8440-8496

    Since the h/w resolution is 0.25 Mhz, we have the 56 Mhz on each band
    sub-divided into 0 - 223 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 8279.00 + (Band - 1) * 59.5 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = 8321.00 + (Band - 2) * 59.5 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 119 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 119
    Rx2 = Tx2 + 119
    Rx3 = Tx3 - 119
    Rx4 = Tx4 - 119

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 224-first
    Valid wvChannelSpacing are 14MHz & 28MHz.

    **************************************************************
    *** For 8 Ghz, according to ITU-R F.386-6 standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 311.32 Mhz ===

    The 7725-8275 Mhz frequency space is divided into 4 127 Mhz bands:

    1. 7725.00-7852.00
    2. 7844.00-8971.00
    3. 8036.25-8163.25
    4. 8155.25-8282.25

    The channel number set from the following table:
  ( The numbers are transmit center frequency in MHz )

    Ch #      Band 1      Band 2      Band 3      Band 4
      0      7725.4625   7844.0625   8036.7825   8155.3825
     15      7729.1687   7847.7687   8040.4887   8159.0887
     30      7732.8750   7851.4750   8044.1950   8162.7950
     45      7736.5812   7855.1812   8047.9012   8166.5012
     60      7740.2875   7858.8875   8051.6075   8170.2075
     75      7743.9937   7862.5937   8055.3137   8173.9137
     90      7747.7000   7866.3000   8059.0200   8177.6200
    105      7751.4062   7870.0062   8062.7262   8181.3262
    120      7755.1125   7873.7125   8066.4325   8185.0325
    135      7758.8187   7877.4187   8070.1387   8188.7387
    150      7762.5250   7881.1250   8073.8450   8192.4450
    165      7766.2312   7884.8312   8077.5512   8196.1512
    180      7769.9375   7888.5375   8081.2575   8199.8575
    195      7773.6437   7892.2437   8084.9637   8203.5637
    210      7777.3500   7895.9500   8088.6700   8207.2700
    225      7781.0562   7899.6562   8092.3762   8210.9762
    240      7784.7625   7903.3625   8096.0825   8214.6825
    255      7788.4687   7907.0687   8099.7887   8218.3887
    270      7792.1750   7910.7750   8103.4950   8222.0950
    285      7795.8812   7914.4812   8107.2012   8225.8012
    300      7799.5875   7918.1875   8110.9075   8229.5075
    315      7803.2937   7921.8937   8114.6137   8233.2137
    330      7807.0000   7925.6000   8118.3200   8236.9200
    345      7810.7062   7929.3062   8122.0262   8240.6262
    360      7814.4125   7933.0125   8125.7325   8244.3325
    375      7818.1187   7936.7187   8129.4387   8248.0387
    390      7821.8250   7940.4250   8133.1450   8251.7450
    405      7825.5312   7944.1312   8136.8512   8255.4512
    420      7829.2375   7947.8375   8140.5575   8259.1575
    435      7832.9437   7951.5437   8144.2637   8262.8637
    450      7836.6500   7955.2500   8147.9700   8266.5700
    465      7840.3562   7958.9562   8151.6762   8270.2762
    480      7844.0625   7962.6625   8155.3825   8273.9825
    495      7847.7687   7966.3687   8159.0887   8277.6887

    Since the spacing between Tx and Rx is 311.32 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 311.32
    Rx2 = Tx2 + 311.32
    Rx3 = Tx3 - 311.32
    Rx4 = Tx4 - 311.32

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = 15 for 7MHz, 30 for 14MHz , 60 for 28MHa
    last  = 510 - first
    Valid wvChannelSpacing are 14MHz & 28MHz

    NOTES:
    1. Valid channel numbers are n*15  n= 1,2,3...,32
    2. When we display the transmit frequency the format is MMMM.KK and we
       trunk the least significant numbers.


    **************************************************************
    *** For 7 Ghz, according to ITU-R F.385-6 standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 245 Mhz ===

    The 7425-7900 Mhz frequency space is divided into 4 112 Mhz bands:

    1. 7428-7540
    2. 7540-7652
    3. 7673-7785
    4. 7785-7897

    Since the h/w resolution is 0.25 Mhz, we have the 56 Mhz on each band
    sub-divided into 0 - 447 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 7428.00 + (Band - 1) * 122.5 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = 7540.00 + (Band - 2) * 122.5 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 245 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 245
    Rx2 = Tx2 + 245
    Rx3 = Tx3 - 245
    Rx4 = Tx4 - 245

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 448-first

    **************************************************************
    *** For 7 Ghz, according to ITU-R F.385-6 standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 154 Mhz ===

    The 7125-7425 or 7425-7725 or  7250-7558  or  7550-7850 Mhz frequency space
    is divided into 2 84 Mhz bands (Bands 1 and 3)
    and 2 56 Mhz bands (Bands 2 and 4) :

    1. 7128-7212  or  7428-7512  or  7253-7337  or  7553-7637
    2. 7212-7268  or  7512-7568  or  7337-7393  or  7637-7693
    3. 7282-7366  or  7582-7666  or  7407-7491  or  7707-7791
    4. 7366-7422  or  7666-7722  or  7491-7547  or  7791-7847

    Since the h/w resolution is 0.25 Mhz, we have the 84 Mhz on bands 1,3
    sub-divided into 0 - 335 channels and the 56 Mhz on bands 2,4
    sub-divided into 0 - 223 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = (7128.00 or 7428.00 or 7253 or 7553) +
                      (Band - 1) * 77.0 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = (7212.00 or 7512.00 or 7337 or 7637) +
                      (Band - 2) * 77.0 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 154 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 154
    Rx2 = Tx2 + 154
    Rx3 = Tx3 - 154
    Rx4 = Tx4 - 154

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 336-first    for  bands 1,3
    last  = 224-first    for  bands 2,4


    **************************************************************
    *** For 7 Ghz, according to ITU-R F.385-6 standard ***
    **************************************************************

    ### In the European (ETSI) model ###

    === Duplex Spacing: 161 Mhz ===

    The 7124.5-7425.5 or 7424.5-7725.5 Mhz or 7249.5-7550.5
    frequency space is divided into 2 84 Mhz bands (Bands 1 and 3)
    and 2 56 Mhz bands (Bands 2 and 4) :

    1. 7124.5-7208.5  or  7424.5-7508.5  or  7249.5-7333.5
    2. 7208.5-7264.5  or  7508.5-7564.5  or  7333.5-7389.5
    3. 7285.5-7369.5  or  7585.5-7669.5  or  7410.5-7494.5
    4. 7369.5-7425.5  or  7669.5-7725.5  or  7494.5-7550.5

    Since the h/w resolution is 0.25 Mhz, we have the 84 Mhz on bands 1,3
    sub-divided into 0 - 335 channels and the 56 Mhz on bands 2,4
    sub-divided into 0 - 223 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = (7124.50 or 7424.50 or 7249.50) +
                      (Band - 1) * 80.5 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = (7208.50 or 7508.50 or 7333.50) +
                      (Band - 2) * 80.5 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 161 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 161
    Rx2 = Tx2 + 161
    Rx3 = Tx3 - 161
    Rx4 = Tx4 - 161

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 336-first    for  bands 1,3
    last  = 224-first    for  bands 2,4

    ### In the European (ETSI) model 15GHz Australia ITU-R F.636-3###

    === Duplex Spacing: 644 Mhz ===

    On the 14500-15350 Mhz frequency space there are 2 196 Mhz bands
    (named bands 1 and 3 for compatibility), with a not used
    'hole' of 448 Mhz in the middle, and additional guards on start and
    end of each band, depending on the channel spacing used :

    1. 14501-14697
    3. 15145-15341

    Since the h/w resolution is 0.25 Mhz, we have the 196 Mhz on each band
    sub-divided into 0 - 783 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 14501.00 + (Band - 1) * 98 + wvChannelNo * 0.25
    for Band = 1,3

    Since the spacing between Tx and Rx is 644 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 644
    Rx3 = Tx3 - 644

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is given in the following table:

    first = wvChannelSpacing*10/5
    last  = 784-first


    ### In the European (ETSI) model 15GHz Australia ###

    === Duplex Spacing: 490 Mhz ===

    On the 14403-15348 Mhz frequency space there are 4 224 Mhz bands
    (named bands 1 to 4 for compatibility):

    1. 14403-14627
    2. 14627-14821
    3. 14893-15117
    4. 15117-15341

    Since the h/w resolution is 0.25 Mhz, we have the 224 Mhz on each band
    sub-divided into 0 - 895 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 14403.00 + (Band - 1) * 112 + wvChannelNo * 0.25
    for Band = 1,3
and
    TxBand = 14627.00 + (Band - 2) * 112 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 490 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 490
    Rx2 = Tx2 + 490
    Rx3 = Tx3 - 490
    Rx4 = Tx4 - 490

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is given in the following table:

    first = wvChannelSpacing*10/5
    last  = 896-first


    ### In the European (ETSI) model 15GHz Australia ###

=== Duplex Spacing: 322 Mhz ===

The 14634-15229 Mhz frequency space is divided into 2 126 Mhz bands
(Bands 1 and 3) and 2 140 Mhz bands (Bands 2 and 4) :

    1. 14634-14760
    2. 14767-14907
    3. 14956-15082
    4. 15089-15229

    Since the h/w resolution is 0.25 Mhz, we have the 126 Mhz on bands 1,3
    sub-divided into 0 - 504 channels and the 140 Mhz on bands 2,4
    sub-divided into 0 - 560 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating frequencies (center point) are calculated by:
    TxBand = 14634 + (Band - 1) * 63 + wvChannelNo * 0.25
    for Band = 1,3
    and
    TxBand = 14760 + (Band - 2) * 70 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 322 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 322
    Rx2 = Tx2 + 322
    Rx3 = Tx3 - 322
    Rx4 = Tx4 - 322

The first/last allowed wvChannelNo depends on the used channel spacing
and is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 504-first (for band 1,3)
    last  = 560-first (for band 2,4)


### In the European (ETSI) model 10GHz Australia ITU-R F.747###

    === Duplex Spacing: 65 Mhz ===

    On the 10550-10680 Mhz frequency space is divided into 2 35 Mhz bands
    (Bands 1 and 3) and 2 30 Mhz bands (Bands 2 and 4) ::

    1. 10550-10585
    2. 10582.5-10615
    3. 10615-10650
    4. 10647.5-10680

    Since the h/w resolution is 0.25 Mhz, we have the 35 Mhz on bands 1,3
    sub-divided into 0 - 139 channels and the 32.5 Mhz on bands 2,4
    sub-divided into 0 - 129 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 10550 + (Band - 1) * 32.5 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = 10582.5 + (Band - 2) * 32.5 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 65 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 65
    Rx2 = Tx2 + 65
    Rx3 = Tx3 - 65
    Rx4 = Tx4 - 65

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 140-first    for  bands 1,3
    last  = 130-first    for  bands 2,4

### In the European (ETSI) model 10GHz Australia ITU-R F.747###

    === Duplex Spacing: 91 Mhz ===

    On the 10500-10680 Mhz frequency space is divided into 4 42 Mhz bands:

    1. 10500.5-10542.5
    2. 10542.5-10584.5
    3. 10591.5-10633.5
    4. 10633.5-10675.5

    Since the h/w resolution is 0.25 Mhz, we have the 42 Mhz on each band
    sub-divided into 0 - 167 channels (with 0 sitting on the START
    of each band).

    The corresponding Operating Frequencies (center point) are calculated by:
    TxBand = 10500.5 + (Band - 1) * 45.5 + wvChannelNo * 0.25
    for Band = 1,3
    TxBand = 10542.5 + (Band - 2) * 45.5 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 119 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 91
    Rx2 = Tx2 + 91
    Rx3 = Tx3 - 91
    Rx4 = Tx4 - 91

    The first/last allowed wvChannelNo depends on the used channel spacing and
    is calculated as follows:

    first = wvChannelSpacing*10/5
    last  = 168-first


    ### In the European (ETSI) model 18GHz ###

    === Duplex Spacing: 1008 Mhz ===

    The 17720.5-19680.5 Mhz frequency space is divided into 2 500.5 Mhz bands
    (Bands 1 and 3) and 2 451.5 Mhz bands (Bands 2 and 4) with a not used
            'hole' of 56 Mhz in the middle.

    1. 17702.5-18221.0
    2. 18221.0-18672.5
    3. 18728.5-19229.0
    4. 19229.0-19700.5

    Since the h/w resolution is 0.25 Mhz, we have the 500.5 Mhz on bands 1,3
    sub-divided into 0 - 2002 channels and the 451.5 Mhz on bands 2,4
    sub-divided into 0 - 1806 channels (with 0 sitting on the START of
    each band).

    The corresponding Operating frequencies (center point) are calculated by:
    TxBand = 17702.5 + (Band - 1) * 500.5 + wvChannelNo * 0.25
    for Band = 1,3
    and
    TxBand = 18221.0 + (Band - 2) * 451.5 + wvChannelNo * 0.25
    for Band = 2,4

    Since the spacing between Tx and Rx is 1010 Mhz, the Rx frequency
    is deduced from the Tx frequency as follows:
    Rx1 = Tx1 + 1008
    Rx2 = Tx2 + 1008
    Rx3 = Tx3 - 1008
    Rx4 = Tx4 - 1008

    The first/last allowed wvChannelNo depends on the used channel spacing
    and is calculated as follows:

    first = wvChannelSpacing*4 - wvChannelSpacing/14 for Bands 1,3
    first = wvChannelSpacing*2 - wvChannelSpacing/28 for Bands 2,4
    last  = 2002 - first(2,4)  for Bands 1,3
    last  = 1806 - first(1,3)  for Bands 2,4



    wvChannelNo's default is the first allowed Channel No, according to
    the chosen channel spacing.

What is wvChannelNo?

This value selects the frequency channel, from 0 to 2400 with 0.25 MHz resolution, that this terminal operates on, mapped to a specific transmit and receive frequency pair depending on the installed ODU's regional standard, spectrum band, and duplex spacing. It is the core parameter that determines which licensed frequency this link actually uses. For example, an installer sets wvChannelNo to match the exact frequency assignment granted by the regulator for that specific link path.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.23304.1.1.1.1.5
snmpwalk -v2c -c public <target> CODAN-MIB::wvChannelNo

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.23304.1.1.1.1.5.1
snmpget -v2c -c public <target> CODAN-MIB::wvChannelNo.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.23304.1.1.1.1.5.1 i <value>

Start monitoring Codan 8800 DMR microwave radio link equipment with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CODAN-MIB::wvChannelNo OID value, configure state conditions and alerts, and monitor any Codan 8800 DMR microwave radio link equipment from a single console.

OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.23304codanGroupCODAN-SMI
1.3.6.1.4.1.23304.1codanMibsCODAN-SMI
Numeric OIDNameModule
1.3.6.1.4.1.23304.1.1minetMIBCODAN-MIB
1.3.6.1.4.1.23304.1.1.1wvConfigurationCODAN-MIB
1.3.6.1.4.1.23304.1.1.1.1wvLinkSettingsCODAN-MIB
1.3.6.1.4.1.23304.1.1.1.1.5wvChannelNoCODAN-MIB