<?xml version="1.0" encoding="UTF-8"?>
<!--

 TSDuck - The MPEG Transport Stream Toolkit
 Copyright (c) 2005-2026, Thierry Lelegard
 BSD-2-Clause license, see LICENSE.txt file or https://tsduck.io/license

 Reference XML file describing VHF and UHF bands.

-->
<tsduck>

  <!-- Europe -->
  <hfband type="UHF">
    <region name="europe"/>
    <region name="uk"/>
    <region name="france"/>
    <channels first_channel="21" last_channel="69" base_frequency="474,000,000" channel_width="8,000,000"
              first_offset="-1" last_offset="3" offset_width="166,666"/>
  </hfband>

  <hfband type="VHF">
    <region name="europe"/>
    <region name="uk"/>
    <region name="france"/>
    <channels first_channel="5" last_channel="12" base_frequency="177,500,000" channel_width="7,000,000"
              first_offset="-1" last_offset="3" offset_width="166,666"/>
  </hfband>

  <!-- North America and other ATSC countries -->
  <!-- With FCC Channel Repack (2020), UHF band now ends at channel 36 (issue #1537) -->
  <hfband type="UHF">
    <region name="north-america"/>
    <region name="usa"/>
    <region name="us"/>
    <channels first_channel="14" last_channel="36" base_frequency="473,000,000" channel_width="6,000,000"/>
  </hfband>

  <hfband type="VHF">
    <region name="north-america"/>
    <region name="usa"/>
    <region name="us"/>
    <region name="korea"/>
    <region name="taiwan"/>
    <channels first_channel="1" last_channel="1" base_frequency="47,000,000" channel_width="6,000,000"/>
    <channels first_channel="2" last_channel="4" base_frequency="57,000,000" channel_width="6,000,000"/>
    <channels first_channel="5" last_channel="6" base_frequency="79,000,000" channel_width="6,000,000"/>
    <channels first_channel="7" last_channel="13" base_frequency="177,000,000" channel_width="6,000,000"/>
  </hfband>

  <!-- Japan frequency mappings, terrestrial and satellite -->
  <hfband type="UHF">
    <region name="japan"/>
    <channels first_channel="13" last_channel="62" base_frequency="473,142,857" channel_width="6,000,000"/>
  </hfband>

  <hfband type="VHF">
    <region name="japan"/>
    <channels first_channel="1" last_channel="3" base_frequency="93,000,000" channel_width="6,000,000"/>
    <channels first_channel="4" last_channel="12" base_frequency="173,000,000" channel_width="6,000,000"/>
  </hfband>

  <hfband type="BS">
    <region name="japan"/>
    <channels first_channel="1" last_channel="24" base_frequency="11,727,480,000" channel_width="19,180,000"
              even_polarity="left" odd_polarity="right"/>
  </hfband>

  <hfband type="CS">
    <region name="japan"/>
    <channels first_channel="1" last_channel="24" base_frequency="12,271,000,000" channel_width="20,000,000"
              even_polarity="right" odd_polarity="left"/>
  </hfband>

  <!-- South America: Generic frequency mappings for ABNT-defined ISDB -->
  <!-- Country-specific subsets are defined for UHF to speed up scanning -->
  <hfband type="UHF">
    <region name="south-america"/>
    <region name="abnt"/>
    <region name="brazil"/>
    <channels first_channel="14" last_channel="36" base_frequency="473,142,857" channel_width="6,000,000"/>
    <!-- Channel 37 is reserved for radio astronomy -->
    <channels first_channel="38" last_channel="69" base_frequency="617,142,857" channel_width="6,000,000"/>
  </hfband>

  <hfband type="VHF">
    <region name="south-america"/>
    <region name="abnt"/>
    <region name="brazil"/>
    <region name="paraguay"/>
    <channels first_channel="7" last_channel="13" base_frequency="177,142,857" channel_width="6,000,000"/>
  </hfband>

  <hfband type="UHF">
    <region name="argentina"/>
    <region name="paraguay"/>
    <channels first_channel="14" last_channel="36" base_frequency="473,142,857" channel_width="6,000,000"/>
    <channels first_channel="38" last_channel="51" base_frequency="617,142,857" channel_width="6,000,000"/>
  </hfband>

  <hfband type="UHF">
    <region name="chile"/>
    <channels first_channel="21" last_channel="36" base_frequency="515,142,857" channel_width="6,000,000"/>
    <channels first_channel="38" last_channel="51" base_frequency="617,142,857" channel_width="6,000,000"/>
  </hfband>

  <hfband type="UHF">
    <region name="ecuador"/>
    <channels first_channel="14" last_channel="15" base_frequency="473,142,857" channel_width="6,000,000"/>
    <channels first_channel="21" last_channel="36" base_frequency="515,142,857" channel_width="6,000,000"/>
    <channels first_channel="38" last_channel="42" base_frequency="617,142,857" channel_width="6,000,000"/>
  </hfband>

  <!-- Other ISDB countries -->
  <hfband type="UHF">
    <region name="philippines"/>
    <channels first_channel="14" last_channel="44" base_frequency="473,142,857" channel_width="6,000,000"/>
  </hfband>

  <hfband type="UHF">
    <region name="botswana"/>
    <channels first_channel="21" last_channel="48" base_frequency="474,000,000" channel_width="8,000,000"/>
  </hfband>

</tsduck>
