{"data":{"id":"us/47-cfr-80.361","jurisdiction":"us","citation":"47 CFR 80.361","heading":"Frequencies for narrow-band direct-printing (NBDP), radioprinter and data transmissions.","body":"(a) Paired channels. The following frequencies are available for assignment to public coast stations for narrow-band direct-printing (NBDP) and data transmissions. The paired ship frequencies are available for use by authorized ship stations for NBDP and data transmissions.\nCh. no. Paired frequencies for NBDP and data transmissions (kHz)\n4 MHz 6 MHz 8 MHz 12 MHz 16 MHz 18/19 MHz 22 MHz 25/26 MHz\nCoast Ship Coast Ship Coast Ship Coast Ship Coast Ship Coast Ship Coast Ship Coast Ship\n1 4210.5 4172.5 6314.5 6263.0 12579.5 12477.0 16807.0 16683.5 19681.0 18870.5 22376.5 22284.5 26101.0 25173.0\n2 4211.0 4173.0 6315.0 6263.5 8417.0 8377.0 12580.0 12477.5 16807.5 16684.0 19681.5 18871.0 22377.0 22285.0 26101.5 25173.5\n3 4211.5 4173.5 6315.5 6264.0 8417.5 8377.5 12580.5 12478.0 16808.0 16684.5 19682.0 18871.5 22377.5 22285.5 26102.0 25174.0\n4 4212.0 4174.0 6316.0 6264.5 8418.0 8378.0 12581.0 12478.5 16808.5 16685.0 19682.5 18872.0 22378.0 22286.0 26102.5 25174.5\n5 4212.5 4174.5 6316.5 6265.0 8418.5 8378.5 12581.5 12479.0 16809.0 16685.5 19683.0 18872.5 22378.5 22286.5 26103.0 25175.0\n6 4213.0 4175.0 6317.0 6265.5 8419.0 8379.0 12582.0 12479.5 16809.5 16686.0 19683.5 18873.0 22379.0 22287.0 26103.5 25175.5\n7 4213.5 4175.5 6317.5 6266.0 8419.5 8379.5 12582.5 12480.0 16810.0 16686.5 19684.0 18873.5 22379.5 22287.5 26104.0 25176.0\n8 4214.0 4176.0 6318.0 6266.5 8420.0 8380.0 12583.0 12480.5 16810.5 16687.0 19684.5 18874.0 22380.0 22288.0 26104.5 25176.5\n9 4214.5 4176.5 6318.5 6267.0 8420.5 8380.5 12583.5 12481.0 16811.0 16687.5 19685.0 18874.5 22380.5 22288.5 26105.0 25177.0\n10 4215.0 4177.0 6319.0 6267.5 8421.0 8381.0 12584.0 12481.5 16811.5 16688.0 19685.5 18875.0 22381.0 22289.0 26105.5 25177.5\n11 8421.5 8381.5 12584.5 12482.0 16812.0 16688.5 19686.0 18875.5 22381.5 22289.5 26106.0 25178.0\n12 4215.5 4178.0 6319.5 6268.5 8422.0 8382.0 12585.0 12482.5 16812.5 16689.0 19686.5 18876.0 22382.0 22290.0 26106.5 25178.5\n13 4216.0 4178.5 6320.0 6269.0 8422.5 8382.5 12585.5 12483.0 16813.0 16689.5 19687.0 18876.5 22382.5 22290.5 26107.0 25179.0\n14 4216.5 4179.0 6320.5 6269.5 8423.0 8383.0 12586.0 12483.5 16813.5 16690.0 19687.5 18877.0 22383.0 22291.0 26107.5 25179.5\n15 4217.0 4179.5 6321.0 6270.0 8423.5 8383.5 12586.5 12484.0 16814.0 16690.5 19688.0 18877.5 22383.5 22291.5 26108.0 25180.0\n16 4217.5 4180.0 6321.5 6270.5 8424.0 8384.0 12587.0 12484.5 16814.5 16691.0 19688.5 18878.0 22384.0 22292.0 26108.5 25180.5\n17 4218.0 4180.5 6322.0 6271.0 8424.5 8384.5 12587.5 12485.0 16815.0 16691.5 19689.0 18878.5 22384.5 22292.5 26109.0 25181.0\n18 6322.5 6271.5 8425.0 8385.0 12588.0 12485.5 16815.5 16992.0 19689.5 18879.0 22385.0 22293.0 26109.5 25181.5\n19 6323.0 6272.0 8425.5 8385.5 12588.5 12486.0 16816.0 16692.5 19690.0 18879.5 22385.5 22293.5 26110.0 25182.0\n20 6323.5 6272.5 8426.0 8386.0 12589.0 12486.5 16816.5 16693.0 19690.5 18880.0 22386.0 22294.0 26110.5 25182.5\n21 6324.0 6273.0 8426.5 8386.5 12589.5 12487.0 16817.0 16693.5 19691.0 18880.5 22386.5 22294.5\n22 6324.5 6273.5 8427.0 8387.0 12590.0 12487.5 16817.5 16694.0 19691.5 18881.0 22387.0 22295.0\n23 6325.0 6274.0 8427.5 8387.5 12590.5 12488.0 16818.0 16694.5 22387.5 22295.5\n24 6325.5 6274.5 8428.0 8388.0 12591.0 12488.5 22388.0 22296.0\n25 6326.0 6275.0 8428.5 8388.5 12591.5 12489.0 16818.5 16695.5 22388.5 22296.5\n26 6326.5 6275.5 8429.0 8389.0 12592.0 12489.5 16819.0 16696.0 22389.0 22297.0\n27 6327.0 6281.0 8429.5 8389.5 12592.5 12490.0 16819.5 16696.5 22389.5 22297.5\n28 6327.5 6281.5 8430.0 8390.0 12593.0 12490.5 16820.0 16697.0 22390.0 22298.0\n29 6328.0 6282.0 8430.5 8390.5 12593.5 12491.0 16820.5 16697.5 22390.5 22298.5\n30 8431.0 8391.0 12594.0 12491.5 16821.0 16698.0 22391.0 22299.0\n31 8431.5 8391.5 12594.5 12492.0 16821.5 16698.5 22391.5 22299.5\n32 8432.0 8392.0 12595.0 12492.5 16822.0 16699.0 22392.0 22300.0\n33 8432.5 8392.5 12595.5 12493.0 16822.5 16699.5 22392.5 22300.5\n34 8433.0 8393.0 12596.0 12493.5 16823.0 16700.0 22393.0 22301.0\n35 12596.5 12494.0 16823.5 16700.5 22393.5 22301.5\n36 12597.0 12494.5 16824.0 16701.0 22394.0 22302.0\n37 12597.5 12495.0 16824.5 16701.5 22394.5 22302.5\n38 12598.0 12495.5 16825.0 16702.0 22395.0 22303.0\n39 12598.5 12496.0 16825.5 16702.5 22395.5 22303.5\n40 12599.0 12496.5 16826.0 16703.0 22396.0 22304.0\n41 12599.5 12497.0 16826.5 16703.5 22396.5 22304.5\n42 12600.0 12497.5 16827.0 16704.0 22397.0 22305.0\n43 12600.5 12498.0 16827.5 16704.5 22397.5 22305.5\n44 12601.0 12498.5 16828.0 16705.0 22398.0 22306.0\n45 12601.5 12499.0 16828.5 16705.5 22398.5 22306.5\n46 12602.0 12499.5 16829.0 16706.0 22399.0 22307.0\n47 12602.5 12500.0 16829.5 16706.5 22399.5 22307.5\n48 12603.0 12500.5 16830.0 16707.0 22400.0 22308.0\n49 12603.5 12501.0 16830.5 16707.5 22400.5 22308.5\n50 12604.0 12501.5 16831.0 16708.0 22401.0 22309.0\n51 12604.5 12502.0 16831.5 16708.5 22401.5 22309.5\n52 12605.0 12502.5 16832.0 16709.0 22402.0 22310.0\n53 12605.5 12503.0 16832.5 16709.5 22402.5 22310.5\n54 12606.0 12503.5 16833.0 16710.0 22403.0 22311.0\n55 12606.5 12504.0 16833.5 16710.5 22403.5 22311.5\n56 12607.0 12504.5 16834.0 16711.0 22404.0 22312.0\n57 12607.5 12505.0 16834.5 16711.5 22404.5 22312.5\n58 12608.0 12505.5 16835.0 16712.0 22405.0 22313.0\n59 12608.5 12506.0 16835.5 16712.5 22405.5 22313.5\n60 12609.0 12506.5 16836.0 16713.0 22406.0 22314.0\n61 12609.5 12507.0 16836.5 16713.5 22406.5 22314.5\n62 12610.0 12507.5 16837.0 16714.0 22407.0 22315.0\n63 12610.5 12508.0 16837.5 16714.5 22407.5 22315.5\n64 12611.0 12508.5 16838.0 16715.0 22408.0 22316.0\n65 12611.5 12509.0 16838.5 16715.5 22408.5 22316.5\n66 12612.0 12509.5 16839.0 16716.0 22409.0 22317.0\n67 12612.5 12510.0 16839.5 16716.5 22409.5 22317.5\n68 12613.0 12510.5 16400.0 16717.0 22410.0 22318.0\n69 12613.5 12511.0 16400.5 16717.5 22410.5 22318.5\n70 12614.0 12511.5 16411.0 16718.0 22411.0 22319.0\n71 12614.5 12512.0 16841.5 16718.5 22411.5 22319.5\n72 12615.0 12512.5 16842.0 16719.0 22412.0 22320.0\n73 12615.5 12513.0 16842.5 16719.5 22412.5 22320.5\n74 12616.0 12513.5 16843.0 16720.0 22413.0 22321.0\n75 12616.5 12514.0 16843.5 16720.5 22413.5 22321.5\n76 12617.0 12514.5 16844.0 16721.0 22414.0 22322.0\n77 12617.5 12515.0 16844.5 16721.5 22414.5 22322.5\n78 12618.0 12515.5 16845.0 16722.0 22415.0 22323.0\n79 12618.5 12516.0 16845.5 16722.5 22415.5 22323.5\n80 12619.0 12516.5 16846.0 16723.0 22416.0 22324.0\n81 12619.5 12517.0 16846.5 16723.5 22416.5 22324.5\n82 12620.0 12517.5 16847.0 16724.0 22417.0 22325.0\n83 12620.5 12518.0 16847.5 16724.5 22417.5 22325.5\n84 12621.0 12518.5 16848.0 16725.0 22418.0 22326.0\n85 12621.5 12519.0 16848.5 16725.5 22418.5 22326.5\n86 12622.0 12519.5 16849.0 16726.0 22419.0 22327.0\n87 16849.5 16726.5 22419.5 22327.5\n88 12622.5 12520.5 16850.0 16727.0 22420.0 22328.0\n89 12623.0 12521.0 16850.5 16727.5 22420.5 22328.5\n90 12623.5 12521.5 16851.0 16728.0 22421.0 22329.0\n91 12624.0 12522.0 16851.5 16728.5 22421.5 22329.5\n92 12624.5 12522.5 16852.0 16729.0 22422.0 22330.0\n93 12625.0 12523.0 16852.5 16729.5 22422.5 22330.5\n94 12625.5 12523.5 16853.0 16730.0 22423.0 22331.0\n95 12626.0 12524.0 16853.5 16730.5 22423.5 22331.5\n96 12626.5 12524.5 16854.0 16731.0 22424.0 22332.0\n97 12627.0 12525.0 16854.5 16731.5 22424.5 22332.5\n98 12627.5 12525.5 16855.0 16732.0 22425.0 22333.0\n99 12628.0 12526.0 16855.5 16732.5 22425.5 22333.5\n100 12628.5 12526.5 16856.0 16733.0 22426.0 22334.0\n101 12629.0 12527.0 16856.5 16733.5 22426.5 22334.5\n102 12629.5 12527.5 16857.0 16739.0\n103 12630.0 12528.0 16857.5 16739.5\n104 12630.5 12528.5 16858.0 16740.0\n105 12631.0 12529.0 16858.5 16740.5\n106 12631.5 12529.5 16859.0 16741.0\n107 12632.0 12530.0 16859.5 16741.5\n108 16860.0 16742.0\n109 16860.5 16742.5\n110 16861.0 16743.0\n111 16861.5 16743.5\n112 16862.0 16744.0\n113 16862.5 16744.5\n114 16863.0 16745.0\n115 16863.5 16745.5\n116 16864.0 16746.0\n117 16864.5 16746.5\n118 16865.0 16747.0\n119 16865.5 16747.5\n120 16866.0 16748.0\n121 16866.5 16748.5\n122 16867.0 16749.0\n123 16867.5 16749.5\n124 16868.0 16750.0\n125 16868.5 16750.5\n126 16869.0 16751.0\n127 16869.5 16751.5\n128 16870.0 16752.0\n129 16870.5 16752.5\n130 16871.0 16753.0\n131 16871.5 16753.5\n132 16872.0 16754.0\n(b) The following table describes the frequencies and Channel Series with F1B, J2B, or J2D emission which are assignable to ship stations for NBDP and data transmissions with other ship stations and public coast stations. Public coast stations may receive only on these frequencies.\nNon-Paired NBDP Channels (kHz)\nChannel series:\n1 4202.5 6300.5 8396.5 12560.0 16785.0 18893.0 22352.0 25193.0\n2 4203.0 6301.0 8397.0 12560.5 16785.5 18893.5 22352.5 25193.5\n3 4203.5 6301.5 8397.5 12561.0 16786.0 18894.0 22353.0 25194.0\n4 4204.0 6302.0 8398.0 12561.5 16786.5 18894.5 22353.5 25194.5\n5 4204.5 6302.5 8398.5 12562.0 16787.0 18895.0 22354.0 25195.0\n6 4205.0 6303.0 8399.0 12562.5 16787.5 18895.5 22354.5 25195.5\n7 4205.5 6303.5 8399.5 12563.0 16788.0 18896.0 22355.0 25196.0\n8 4206.0 6304.0 8400.0 12563.5 16788.5 18896.5 22355.5 25196.5\n9 4206.5 6304.5 8400.5 12564.0 16789.0 18897.0 22356.0 25197.0\n10 4207.0 6305.0 8401.0 12564.5 16789.5 18897.5 22356.5 25197.5\n11 6305.5 8401.5 12565.0 16790.0 18898.0 22357.0 25198.0\n12 6306.0 8402.0 12565.5 16790.5 22357.5 25198.5\n13 6306.5 8402.5 12566.0 16791.0 22358.0 25199.0\n14 6307.0 8403.0 12566.5 16791.5 22358.5 25199.5\n15 6307.5 8403.5 12567.0 16792.0 22359.0 25200.0\n16 6308.0 8404.0 12567.5 16792.5 22359.5 25200.5\n17 6308.5 8404.5 12568.0 16793.0 22360.0 25201.0\n18 6309.0 8405.0 12568.5 16793.5 22360.5 25201.5\n19 6309.5 8405.5 12569.0 16794.0 22361.0 25202.0\n20 6310.0 8406.0 12569.5 16794.5 22361.5 25202.5\n21 6310.5 8406.5 12570.0 16795.0 22362.0 25203.0\n22 6311.0 8407.0 12570.5 16795.5 22362.5 25203.5\n23 6311.5 8407.5 12571.0 16796.0 22363.0 25204.0\n24 8408.0 12571.5 16796.5 22363.5 25204.5\n25 8408.5 12572.0 16797.0 22364.0 25205.0\n26 8409.0 12572.5 16797.5 22364.5 25205.5\n27 8409.5 12573.0 16798.0 22365.0 25206.0\n28 8410.0 12573.5 16798.5 22365.5 25206.5\n29 8410.5 12574.0 16799.0 22366.0 25207.0\n30 8411.0 12574.5 16799.5 22366.5 25207.5\n31 8411.5 12575.0 16800.0 22367.0 25208.0\n32 8412.0 12575.5 16800.5 22367.5\n33 8412.5 12576.0 16801.0 22368.0\n34 8413.0 12576.5 16801.5 22368.5\n35 8413.5 16802.0 22369.0\n36 8414.0 16802.5 22369.5\n37 16803.0 22370.0\n38 16803.5 22370.5\n39 16804.0 22371.0\n40 22371.5\n41 22372.0\n42 22372.5\n43 22373.0\n44 22373.5\n45 22374.0\n(c) Distress and calling. The frequencies 2174.5 kHz, 4177.5 kHz, 6268.0 kHz, 8376.5 kHz, 12520.0 kHz, and 16695.0 kHz may be used for NBDP and data transmissions by coast and ship stations on a simplex basis for distress and safety purposes.\n(d) The frequencies in the 156-162 MHz band available for assignment to public coast stations that are contained in § 80.371(c) of this part are also available for radioprinter and data communications between ship and coast stations using F1B, F2B, F1D, or F2D emission.","path":["Title 47—Telecommunication","CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION","SUBCHAPTER D—SAFETY AND SPECIAL RADIO SERVICES","PART 80—STATIONS IN THE MARITIME SERVICES","Subpart H—Frequencies"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-47.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:28Z","sha256":"d54330775eda45bab53d50671e853b63b6451427cc3dce5dc4d8f57465109eea","source_id":"us-cfr","stale":true,"prev":"us/47-cfr-80.359","next":"us/47-cfr-80.363"},"notice":"GroundRules: Original legal text. Not legal advice."}