Cloudlog/application/libraries/Frequency.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Frequency {

  const modes = array('SSB','FM','AM','CW','DSTAR','F4M','DMR','DIGITALVOICE',
                      'PSK31','PSK63','RTTY','JT65','JT65B','JT6C','JT9-1', 
                      'JT9','FT8','FSK441','JTMS','ISCAT','MSK144','JTMSK', 
                      'QRA64','PKT','SSTV','HELL','HELL80');

  public $defaultFrequencies = array(
	'160m'=>array(
	  	'SSB'=>"1900000",
  		'DATA'=>"1838000",
  		'CW'=>"1830000"),
	'80m'=>array(
  		'SSB'=>"3700000",
  		'DATA'=>"3583000",
  		"CW"=>"3550000"),
	'40m'=>array(
  		'SSB'=>"7100000",
  		'DATA'=>"7040000",
  		'CW'=>"7020000"),
	'30m'=>array(
  		'SSB'=>"10120000",
  		'DATA'=>"10145000",
  		'CW'=>"10120000"),
	'20m'=>array(
  		'SSB'=>"14200000",
  		'DATA'=>"14080000",
  		'CW'=>"14020000"),
	'17m'=>array(
  		'SSB'=>"18130000",
  		'DATA'=>"18105000",
  		'CW'=>"18080000"),
	'15m'=>array(
  		'SSB'=>"21300000",
  		'DATA'=>"21080000",
  		'CW'=>"21020000"),
	'12m'=>array(
  		'SSB'=>"24950000",
  		'DATA'=>"24925000",
  		'CW'=>"24900000"),
	'10m'=>array(
  		'SSB'=>"28300000",
  		'DATA'=>"28120000",
  		'CW'=>"21050000"),
	'6m'=>array(
  		'SSB'=>"50150000",
  		'DATA'=>"50230000",
  		'CW'=>"50090000"),
	'4m'=>array(
  		'SSB'=>"70200000",
  		'DATA'=>"70200000",
  		'CW'=>"70200000"),
	'2m'=>array(
  		'SSB'=>"144300000",
  		'DATA'=>"144370000",
  		'CW'=>"144050000"),
	'70cm'=>array(
  		'SSB'=>"432200000",
  		'DATA'=>"432088000",
  		'CW'=>"432050000"),
	'23cm'=>array(
  		'SSB'=>"1296000000",
  		'DATA'=>"1296138000",
  		'CW'=>"129600000"),
	'13cm'=>array(
  		'SSB'=>"232080000",
  		'DATA'=>"232080000",
  		'CW'=>"232080000"),
	'9cm'=>array(
  		'SSB'=>"341000000",
  		'DATA'=>"341000000",
  		'CW'=>"340000000"),
	'6cm'=>array(
  		'SSB'=>"567000000",
  		'DATA'=>"567000000",
  		'CW'=>"567000000"),
	'3cm'=>array(
  		'SSB'=>"1022500000",
  		'DATA'=>"1022500000",
  		'CW'=>"1022500000")
  );

	/* Class to convert band and mode into a frequnecy in a format based on the specifications of the database table */
	public function convent_band($band, $mode='SSB')
	{
    // Modes for which we've set a frequency
    $known_modes = array('SSB', 'DATA', 'CW');
    
    // Data modes that are being treated as 'DATA' for frequency lookup
    $data_modes = array('PSK31','PSK63','RTTY',
                        'JT65','JT65B','JT6C','JT9-1','JT9','FT8',
                        'FSK441','JTMS','ISCAT','MSK144','JTMSK',
                        'QRA64','PKT','SSTV','HELL','HELL80');
    
    // Use 'DATA' for any of the data modes
    if(in_array($mode, $data_modes)){
      $mode= "DATA";
    }

    // If the mode isn't listed, default to SSB frequency
    if (!in_array($mode, $known_modes)){
      $mode = 'SSB';
    }

		return $this->defaultFrequencies[$band][$mode];
  }

  public function GetBand($Frequency) {
		$Band = NULL;
		if ($Frequency > 1000000 && $Frequency < 2000000) {
			$Band = "160m";
		} else if ($Frequency > 3000000 && $Frequency < 4000000) {
			$Band = "80m";
		} else if ($Frequency > 6000000 && $Frequency < 8000000) {
			$Band = "40m";
		} else if ($Frequency > 9000000 && $Frequency < 11000000) {
			$Band = "30m";
		} else if ($Frequency > 13000000 && $Frequency < 15000000) {
			$Band = "20m";
		} else if ($Frequency > 17000000 && $Frequency < 19000000) {
			$Band = "17m";
		} else if ($Frequency > 20000000 && $Frequency < 22000000) {
			$Band = "15m";
		} else if ($Frequency > 23000000 && $Frequency < 25000000) {
			$Band = "12m";
		} else if ($Frequency > 27000000 && $Frequency < 30000000) {
			$Band = "10m";
		} else if ($Frequency > 49000000 && $Frequency < 52000000) {
			$Band = "6m";
		} else if ($Frequency > 69000000 && $Frequency < 71000000) {
			$Band = "4m";
		} else if ($Frequency > 140000000 && $Frequency < 150000000) {
			$Band = "2m";
		} else if ($Frequency > 218000000 && $Frequency < 226000000) {
			$Band = "1.25m";
		} else if ($Frequency > 430000000 && $Frequency < 440000000) {
			$Band = "70cm";
		} else if ($Frequency > 900000000 && $Frequency < 930000000) {
			$Band = "33cm";
		} else if ($Frequency > 1200000000 && $Frequency < 1300000000) {
			$Band = "23cm";
		} else if ($Frequency > 2200000000 && $Frequency < 2600000000) {
			$Band = "13cm";
		} else if ($Frequency > 3000000000 && $Frequency < 4000000000) {
			$Band = "9cm";
		} else if ($Frequency > 5000000000 && $Frequency < 6000000000) {
			$Band = "6cm";
		} else if ($Frequency > 9000000000 && $Frequency < 11000000000) {
			$Band = "3cm";
		} else if ($Frequency > 23000000000 && $Frequency < 25000000000) {
			$Band = "1.2cm";
		} else if ($Frequency > 46000000000 && $Frequency < 55000000000) {
			$Band = "6mm";
		} else if ($Frequency > 75000000000 && $Frequency < 82000000000) {
			$Band = "4mm";
		} else if ($Frequency > 120000000000 && $Frequency < 125000000000) {
			$Band = "2.5mm";
		} else if ($Frequency > 133000000000 && $Frequency < 150000000000) {
			$Band = "2mm";
		} else if ($Frequency > 240000000000 && $Frequency < 250000000000) {
			$Band = "1mm";
		} else if ($Frequency >= 250000000000) {
			$Band = "<1mm";
		}
		return $Band;
	}
}
/* End of file Frequency.php */