mirror of
https://github.com/wavelog/wavelog.git
synced 2026-03-22 10:24:14 +00:00
340 lines
9.2 KiB
PHP
340 lines
9.2 KiB
PHP
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
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class Frequency {
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public $defaultFrequencies = array(
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'160m' => array(
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'SSB' => "1900000",
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'DATA' => "1838000",
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'CW' => "1830000",
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'NOMINAL' => "1.8",
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'UNIT' => 'kHz'),
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'80m' => array(
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'SSB' => "3700000",
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'DATA' => "3583000",
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"CW" => "3550000",
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"NOMINAL" => "3.5",
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'UNIT' => 'kHz'),
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'60m' => array(
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'SSB' => "5330000",
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'DATA' => "5330000",
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"CW" => "5260000",
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"NOMINAL" => "5",
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'UNIT' => 'kHz'),
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'40m' => array(
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'SSB' => "7100000",
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'DATA' => "7040000",
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'CW' => "7020000",
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'NOMINAL' => "7",
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'UNIT' => 'kHz'),
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'30m' => array(
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'SSB' => "10120000",
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'DATA' => "10145000",
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'CW' => "10120000",
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'NOMINAL' => "10",
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'UNIT' => 'kHz'),
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'20m' => array(
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'SSB' => "14200000",
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'DATA' => "14080000",
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'CW' => "14020000",
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'NOMINAL' => "14",
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'UNIT' => 'kHz'),
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'17m' => array(
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'SSB' => "18130000",
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'DATA' => "18105000",
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'CW' => "18080000",
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'NOMINAL' => "18",
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'UNIT' => 'kHz'),
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'15m' => array(
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'SSB' => "21300000",
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'DATA' => "21080000",
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'CW' => "21020000",
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'NOMINAL' => "21",
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'UNIT' => 'kHz'),
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'12m' => array(
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'SSB' => "24950000",
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'DATA' => "24925000",
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'CW' => "24900000",
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'NOMINAL' => "24",
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'UNIT' => 'kHz'),
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'10m' => array(
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'SSB' => "28300000",
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'DATA' => "28120000",
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'CW' => "28050000",
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'NOMINAL' => "28",
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'UNIT' => 'kHz'),
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'6m' => array(
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'SSB' => "50150000",
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'DATA' => "50230000",
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'CW' => "50090000",
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'NOMINAL' => "50",
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'UNIT' => 'MHz'),
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'4m' => array(
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'SSB' => "70200000",
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'DATA' => "70200000",
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'CW' => "70200000",
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'NOMINAL' => "70",
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'UNIT' => 'MHz'),
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'2m' => array(
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'SSB' => "144300000",
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'DATA' => "144370000",
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'CW' => "144050000",
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'NOMINAL' => "144",
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'UNIT' => 'MHz'),
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'1.25m' => array(
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'SSB' => "222100000",
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'DATA' => "222100000",
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'CW' => "222100000",
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'NOMINAL' => "222",
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'UNIT' => 'MHz'),
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'70cm' => array(
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'SSB' => "432200000",
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'DATA' => "432088000",
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'CW' => "432050000",
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'NOMINAL' => "433",
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'UNIT' => 'MHz'),
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'33cm' => array(
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'SSB' => "902100000",
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'DATA' => "902100000",
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'CW' => "902100000",
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'NOMINAL' => "902",
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'UNIT' => 'MHz'),
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'23cm' => array(
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'SSB' => "1296000000",
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'DATA' => "1296138000",
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'CW' => "129600000",
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'NOMINAL' => "1296",
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'UNIT' => 'GHz'),
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'13cm' => array(
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'SSB' => "2320800000",
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'DATA' => "2320800000",
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'CW' => "2320800000",
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'NOMINAL' => "2400",
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'UNIT' => 'GHz'),
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'9cm' => array(
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'SSB' => "3410000000",
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'DATA' => "3410000000",
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'CW' => "3400000000",
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'NOMINAL' => "3400",
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'UNIT' => 'GHz'),
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'6cm' => array(
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'SSB' => "5670000000",
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'DATA' => "5670000000",
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'CW' => "5670000000",
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'NOMINAL' => "5670",
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'UNIT' => 'GHz'),
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'3cm' => array(
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'SSB' => "10225000000",
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'DATA' => "10225000000",
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'CW' => "10225000000",
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'NOMINAL' => "10225",
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'UNIT' => 'GHz'),
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'1.25cm' => array(
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'SSB' => "24000000000",
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'DATA' => "24000000000",
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'CW' => "24000000000",
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'NOMINAL' => "24000",
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'UNIT' => 'GHz'),
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);
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/* Class to convert band and mode into a frequency in a format based on the specifications of the database table */
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public function convert_band($band, $mode = 'SSB') {
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// Converting LSB and USB to SSB
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if ($mode == 'LSB' or $mode == 'USB') {
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$mode = "SSB";
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}
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// Use 'DATA' for any of the data modes
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if ($mode != 'CW' and $mode != 'SSB') {
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$mode = "DATA";
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}
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return $this->getDefaultFrequency($band, $mode);
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}
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function getDefaultFrequency($band, $mode) {
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$CI = &get_instance();
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$db = &$CI->db;
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$db->from('bands');
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$db->where('bands.band', $band);
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$result = $db->get()->row();
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$mode = strtolower($mode);
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return $result->$mode;
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}
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public function GetBand($Frequency) {
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$Band = NULL;
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if ($Frequency > 1000000 && $Frequency < 2000000) {
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$Band = "160m";
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} else if ($Frequency > 3000000 && $Frequency < 4000000) {
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$Band = "80m";
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} else if ($Frequency > 6000000 && $Frequency < 8000000) {
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$Band = "40m";
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} else if ($Frequency > 9000000 && $Frequency < 11000000) {
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$Band = "30m";
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} else if ($Frequency > 13000000 && $Frequency < 15000000) {
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$Band = "20m";
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} else if ($Frequency > 17000000 && $Frequency < 19000000) {
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$Band = "17m";
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} else if ($Frequency > 20000000 && $Frequency < 22000000) {
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$Band = "15m";
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} else if ($Frequency > 23000000 && $Frequency < 25000000) {
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$Band = "12m";
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} else if ($Frequency > 27000000 && $Frequency < 30000000) {
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$Band = "10m";
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} else if ($Frequency > 49000000 && $Frequency < 52000000) {
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$Band = "6m";
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} else if ($Frequency > 69000000 && $Frequency < 71000000) {
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$Band = "4m";
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} else if ($Frequency > 140000000 && $Frequency < 150000000) {
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$Band = "2m";
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} else if ($Frequency > 218000000 && $Frequency < 226000000) {
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$Band = "1.25m";
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} else if ($Frequency > 430000000 && $Frequency < 450000000) {
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$Band = "70cm";
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} else if ($Frequency > 900000000 && $Frequency < 930000000) {
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$Band = "33cm";
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} else if ($Frequency > 1200000000 && $Frequency < 1300000000) {
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$Band = "23cm";
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} else if ($Frequency > 2200000000 && $Frequency < 2600000000) {
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$Band = "13cm";
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} else if ($Frequency > 3000000000 && $Frequency < 4000000000) {
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$Band = "9cm";
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} else if ($Frequency > 5000000000 && $Frequency < 6000000000) {
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$Band = "6cm";
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} else if ($Frequency > 9000000000 && $Frequency < 11000000000) {
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$Band = "3cm";
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} else if ($Frequency > 23000000000 && $Frequency < 25000000000) {
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$Band = "1.2cm";
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} else if ($Frequency > 46000000000 && $Frequency < 55000000000) {
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$Band = "6mm";
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} else if ($Frequency > 75000000000 && $Frequency < 82000000000) {
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$Band = "4mm";
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} else if ($Frequency > 120000000000 && $Frequency < 125000000000) {
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$Band = "2.5mm";
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} else if ($Frequency > 133000000000 && $Frequency < 150000000000) {
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$Band = "2mm";
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} else if ($Frequency > 240000000000 && $Frequency < 250000000000) {
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$Band = "1mm";
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} else if ($Frequency >= 250000000000) {
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$Band = "<1mm";
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}
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return $Band;
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}
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/**
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* Convert a frequency to a specified unit and return it in a specified format.
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*
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* @param float $frequency The frequency value to be converted.
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*
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* @param int $r_option (Optional) The result format option.
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* 0: Return as a string with just the frequency.
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* 1 (default): Return as a string with frequency and unit.
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* 2: Return as a string with frequency, unit, and band.
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*
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* @param string $source_unit (Optional) The source unit of the frequency.
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* Possible values: 'Hz', 'kHz', 'MHz', 'GHz'.
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* Default is 'Hz'.
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* ! If the source unit is not 'Hz', you have to provide the source unit. !
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*
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* @param string $target_unit (Optional) The target unit for conversion.
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* Possible values: 'Hz', 'kHz', 'MHz', 'GHz'.
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* If not provided, the unit is determined based on session data (function qrg_unit()).
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*
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* @return string The converted frequency in the specified format.
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*
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* To change the number of decimals shown per unit, add in your config.php
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*
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* $config['qrg_hz_dec'] = 0;
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* $config['qrg_khz_dec'] = 0;
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* $config['qrg_mhz_dec'] = 3;
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* $config['qrg_ghz_dec'] = 3;
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*
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* and adjust the values to your needs.
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*
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*/
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function qrg_conversion($frequency, $r_option = 1, $source_unit = 'Hz', $target_unit = NULL) {
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if ($frequency == 0) {
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return null;
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}
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$CI = &get_instance();
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// Get the band
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$band = $this->GetBand($frequency);
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// Get the target unit
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if ($target_unit === NULL) {
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$target_unit = $this->qrg_unit($band);
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}
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// Convert the frequency to Hz
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switch ($source_unit) {
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case 'Hz':
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break;
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case 'kHz':
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$frequency *= 1000;
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break;
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case 'MHz':
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$frequency *= 1000000; // 1000 * 1000
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break;
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case 'GHz':
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$frequency *= 1000000000; // 1000 * 1000 * 1000
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break;
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}
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// Convert the frequency to the target unit
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switch ($target_unit) {
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case 'Hz':
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$decimals = $CI->config->item('qrg_hz_dec') ?? 0;
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break;
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case 'kHz':
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$frequency /= 1000;
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$decimals = $CI->config->item('qrg_khz_dec') ?? 0;
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break;
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case 'MHz':
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$frequency /= 1000000; // 1000 * 1000
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$decimals = $CI->config->item('qrg_mhz_dec') ?? 3;
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break;
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case 'GHz':
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$frequency /= 1000000000; // 1000 * 1000 * 1000
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$decimals = $CI->config->item('qrg_ghz_dec') ?? 3;
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break;
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}
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// Return
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switch ($r_option) {
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case 0:
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return number_format($frequency, $decimals, '.', '');
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break;
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case 1:
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return number_format($frequency, $decimals, '.', '') . ' ' . $target_unit;
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break;
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case 2:
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return number_format($frequency, $decimals, '.', '') . ' ' . $target_unit . ' (' . $band . ')';
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break;
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}
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}
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function qrg_unit($band) {
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$CI = &get_instance();
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if ($CI->session->userdata('qrgunit_'.$band)) {
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$unit = $CI->session->userdata('qrgunit_'.$band);
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} else {
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if (isset($this->defaultFrequencies[$band]['UNIT'])) {
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$unit = $this->defaultFrequencies[$band]['UNIT'];
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} else {
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$unit = 'kHz'; // we use kHz as fallback unit
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}
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}
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return $unit;
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}
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}
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/* End of file Frequency.php */
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