var ch2freq2ch="20101226";var align="n";var m="TV Channel ";var m0="Analog only - VHF Lo";var m1="- Official frequency may vary +/-0.125Mhz, your TV receiver will auto tune, set to one of these numbers";var m2="TV Channel ";var m3="VHF Band ";var m4="UHF Band ";var m6="A ";var m7="D ";var m8=" not RF Ch.";var m9=" undefined ";var mB="Hyper ";var mC=" tune to the ";var mD="DTV Ch. does NOT equal RF Ch."
var mH=" hz ";var mK=" Khz ";var mZ=" Mhz ";var m10=" <abbr title='copyright'>(C)</abbr> VK3KHB.GAK.NET.AU <abbr title='Interlectual Property'>(IP)</abbr>";var m12="Ham Radio TV UHF ";var fm1="<marquee scrollamount=\"2\" width=\"156\">"+mD+m1+m10+"</marquee>";var fm2=" Mhz<abbr title=\""+fm1+"\"> DiGiTaL</abbr>";var $cell_id="txtone";var $onetxt="";var fq_fA=0;var fq_fD=0;var fq_fDk=fq_fDh=fq_n="";var ch_fA=ch_fD=ch_fDk=ch_fDh=ch_n="";var inp=typ="";var ch_m="unknown?";var dtv_m=" undefined!";var dtv_m0="DTV Ch.";var dtv_m1=mC+"TEN network";var dtv_m2=mC+"ABC network";var dtv_m3=mC+"SBS network";var dtv_m4=mC+"Community TV net.";var dtv_m5=mC+"S.Cross network";var dtv_m6=mC+"PRIME/GWN network";var dtv_m7=mC+"SEVEN network";var dtv_m8=mC+"WIN network";var dtv_m9=mC+"NINE network";var dtv_mA=mC+"Ham TV network";var dtv_mB=" no such number";var dtv_mC="Regional network<br>See TV List of Lists";function tv_ch_start(){var t1=setTimeout('show_tv_calc_nav()',5000);}
function show_freq_num(){show_ch_num();}
function show_ch_num(){clear_area();get_inp(inp);}
function get_inp()
{var inp=prompt("Enter RF or DTV Channel # (0 - 999) or\nFrequency # in Khz (45000 - 820000)","16");if(inp!=null&&inp!="")
{inp=inp.toUpperCase();ch_n=inp;if(inp>820500){alert("Error! value is too high");return;}
if(inp<0){alert("Error! value is too low");return;}
if(inp.match("ABC")){fq_n="226500";ch_n="2";}
if(inp.match("TWO")){fq_n="226500";ch_n="2";}
if(inp.match("SEVEN")){fq_n="177500";ch_n="7";}
if(inp.match("7TWO")){fq_n="177500";ch_n="7";}
if(inp.match("7MAT")){fq_n="177500";ch_n="7";}
if(inp.match("NINE")){fq_n="191500";ch_n="9";}
if(inp.match("GEM")){fq_n="191500";ch_n="9";}
if(inp.match("GO")){fq_n="191500";ch_n="9";}
if(inp.match("TEN")){fq_n="212500";ch_n="10";}
if(inp.match("ELEVE")){fq_n="212500";ch_n="10";}
if(inp.match("ONE")){fq_n="212500";ch_n="10";}
if(inp.match("ATV")){fq_n="444500";ch_n="16";}
if(inp.match("HAM")){fq_n="444500";ch_n="16";}
if(inp.match("SBS")){fq_n="536500";ch_n="30";}
if(inp.match("CTV")){fq_n="557500";ch_n="32";}
if(inp.match("C31")){fq_n="550500";ch_n="31";}
if(inp.match("D44")){fq_n="578500";ch_n="35";}
if(inp.match("THREE")){fq_n="578500";ch_n="3";}
if(inp.match("BRIZ")){fq_n="557500";ch_n="32";}
if(inp.match("TVS")){fq_n="550500";ch_n="31";}
if(inp.match("3D")){fq_n="578500";ch_n="35";}
if(inp.match("FORTY")){fq_n="578500";ch_n="35";}
if(inp.match("5A")){fq_n="140500";ch_n="-1";}
if(inp.match("9A")){fq_n="205500";ch_n="-2";}
if(inp.match("WIN")){fq_n="191500";ch_n="8";}
if(inp.match("PRIME")){fq_n="177500";ch_n="6";}
if(inp.match("CROSS")){fq_n="718500";ch_n="5";}
if(inp.match("GWN")){fq_n="177500";ch_n="6";}
if(inp.match("IMPAR")){fq_n="578500";ch_n="-3";}
inp=ch_n;if(isNaN(inp)){alert("Error! "+inp+" is not known");return;}
inp=(Math.floor(inp));if(inp>-4&&inp<70){ch_n=inp;fq_n="";typ="rftv";ch_numb();}
if(inp>69&&inp<1000){ch_n=inp;fq_n="";typ="dtv";ch_numb();}
if(inp>999){inp=inp/1000;fq_n=inp;ch_n="";typ="fq";freq_numb();}}}
function freq_numb()
{if(fq_n>-1&&fq_n<45){fq_fD=0;fq_fA=0;ch_n=" none";m=m9;}
if(fq_n>44&&fq_n<53){fq_fD=0.0;fq_fA=46.25;ch_n="00";m=m0;}
if(fq_n>52&&fq_n<64){fq_fD=0.0;fq_fA=57.25;ch_n="01";m=m0;}
if(fq_n>63&&fq_n<71){fq_fD=0.0;fq_fA=64.25;ch_n="02";m=m0;}
if(fq_n>70&&fq_n<85){fq_fD=0.0;ch_n=" none";m=m9;}
if(fq_n>84&&fq_n<93){fq_fD=0.0;fq_fA=86.25;ch_n="03";m=m0;}
if(fq_n>92&&fq_n<102){fq_fD=0.0;fq_fA=95.25;ch_n="04";m=m0;}
if(fq_n>101&&fq_n<109){fq_fD=0.0;fq_fA=102.25;ch_n="05";m=m0;}
if(fq_n>108&&fq_n<137){ch_n=(Math.floor(1+(fq_n-105)/7));fq_fD=(107.5+((ch_n-1)*7));ch_n="S_"+ch_n;m=m+mB+m3;}
if(fq_n>136&&fq_n<145){fq_fD=0.0;fq_fA=138.25;ch_n="5a";m=m0;}
if(fq_n>144&&fq_n<147){fq_fD=0.0;ch_n=" none";m="2mtr HAM Radio VHF Band";}
if(fq_n>146&&fq_n<174){ch_n=(Math.floor(7+(fq_n-147)/7));fq_fD=(149.5+((ch_n-7)*7));ch_n="S"+ch_n;m=m+mB+m3;}
if(fq_n>173&&fq_n<181){fq_fD=177.5;ch_n="06";m=m3+m;}
if(fq_n>180&&fq_n<188){fq_fD=184.5;ch_n="07";m=m3+m;}
if(fq_n>187&&fq_n<195){fq_fD=191.5;ch_n="08";m=m3+m;}
if(fq_n>194&&fq_n<202){fq_fD=198.5;ch_n="09";m=m3+m;}
if(fq_n>201&&fq_n<209){fq_fD=205.5;ch_n="9a";m=m3+m;}
if(fq_n>208&&fq_n<216){fq_fD=212.5;ch_n="10";m=m3+m;}
if(fq_n>215&&fq_n<223){fq_fD=219.5;ch_n="11";m=m3+m;}
if(fq_n>222&&fq_n<231){fq_fD=226.5;ch_n="12";m=m3+m;}
if(fq_n>230&&fq_n<443){ch_n=(Math.floor(11+(fq_n-231)/7));fq_fD=(233.5+((ch_n-11)*7));if(ch_n>20){ch_n="S_"+ch_n;m=m+mB+m4;}else{ch_n="S_"+ch_n;m=m+mB+m3;}}
if(fq_n>442&&fq_n<451){fq_fD=446.5;ch_n="aTV (350 / S41)";m=m12;}
if(fq_n>450&&fq_n<478){ch_n=(Math.floor(42+(fq_n-448)/7));fq_fD=(450.5+((ch_n-42)*7));ch_n="S_"+ch_n;m=m+mB+m4;}
if(fq_n>477&&fq_n<821){ch_n=(Math.floor(21+(fq_n-478)/7));fq_fD=(480.5+((ch_n-21)*7));m=m4+m;}
if(fq_fD>2.25){fq_fA=fq_fD-2.25;fq_fDk=(fq_fD*1000);fq_fDh=(fq_fDk*1000);}
if(fq_fD<2.25){fq_fDk=(fq_fA*1000);fq_fDh=(fq_fDk*1000);}
L0="123456789-123456789-1234_FQ<br>";L1="Frequency "+fq_n+" Mhz matches<br>";L2="~ RF CH.  "+ch_n+"<br>";L3=m+"<br>";L4="Slots to "+fq_fA+" Mhz A<br>";L5="_-_-_ or "+fq_fD+"0 Mhz D<br>";L6="_-_-_ =  "+fq_fDk+" Khz or<br>";L7="_-_-_ =  "+fq_fDh+" hz<br><br>";L8=(fm1.small(0))+"<br>";$cell_id="txtone";if(align=="Y"){$onetxt=L0+L1+L2+L3+L4+L5+L6+L7+L8+L0;}else{$onetxt=L1+L2+L3+L4+L5+L6+L7+L8;}
show_op()}
function ch_numb()
{ch_fD=ch_n;if(ch_n=="0"){ch_fD=48.5;}
if(ch_n=="1"){ch_fD=59.5;}
if(ch_n=="2"){ch_fD=66.5;}
if(ch_n=="3"){ch_fD=88.5;}
if(ch_n=="4"){ch_fD=97.5;}
if(ch_n=="5"){ch_fD=104.5;}
if(ch_n==-1){ch_fD=140.5;ch_n="__ 5A";ch_m=m0;dtv_m=dtv_mB;}
if(ch_n==-2){ch_fD=205.5;ch_n="__ 9A";ch_m=m3+m2;dtv_m=dtv_mB;}
if(ch_n>5&&ch_n<10){ch_fD=(177.5+((ch_n-6)*7));ch_m=m3+m2;}
if(ch_n>9&&ch_n<13){ch_fD=(205.5+((ch_n-9)*7));ch_m=m3+m2;}
if(ch_n>12&&ch_n<21){ch_fD="N/A";ch_fA="N/A";ch_m=m9;}
if(ch_n=="16"){ch_fD=446.5;ch_m=m12;}
if(ch_n>20&&ch_n<70){ch_fD=(480.5+((ch_n-21)*7));ch_m=m4+m2;}
if(ch_n>69){ch_fD="N/A";ch_fA="N/A";ch_m=dtv_m0+m8;}
if(ch_fD>2.25){ch_fA=ch_fD-2.25;ch_fDk=(ch_fD*1000);ch_fDh=(ch_fDk*1000);}
if(ch_n>-2&&ch_n<6){ch_fD="---";ch_fDk=(ch_fA*1000);ch_fDh=(ch_fDk*1000);ch_m=m0;}
if(ch_fD>0){ch_fD=ch_fD+"0";}
if(ch_n=="16"){dtv_m=dtv_mA;ch_n="_ aTV ";}
if(ch_n>-1&&ch_n<10){dtv_m=dtv_m;}
if(ch_n==-3){ch_n="__ ??";ch_fD="N/A";ch_fA="N/A";ch_m="";dtv_m=dtv_mC;}
if((ch_n=="1")||(ch_n>9&&ch_n<20)||(ch_n>99&&ch_n<200)){dtv_m=dtv_m1;}
if((ch_n=="2")||(ch_n>19&&ch_n<30)||(ch_n>199&&ch_n<300)){dtv_m=dtv_m2;}
if((ch_n=="3")||(ch_n>29&&ch_n<40)||(ch_n>299&&ch_n<400)){dtv_m=dtv_m3;}
if((ch_n=="4")||(ch_n>39&&ch_n<50)||(ch_n>399&&ch_n<500)){dtv_m=dtv_m4;}
if((ch_n=="5")||(ch_n>49&&ch_n<60)||(ch_n>499&&ch_n<600)){dtv_m=dtv_m5;}
if((ch_n=="6")||(ch_n>59&&ch_n<70)||(ch_n>599&&ch_n<700)){dtv_m=dtv_m6;}
if((ch_n=="7")||(ch_n>69&&ch_n<80)||(ch_n>699&&ch_n<800)){dtv_m=dtv_m7;}
if((ch_n=="8")||(ch_n>79&&ch_n<90)||(ch_n>799&&ch_n<900)){dtv_m=dtv_m8;}
if((ch_n=="9")||(ch_n>89&&ch_n<100)||(ch_n>899&&ch_n<1000)){dtv_m=dtv_m9;}
if((ch_n=="0")||(ch_n>99&&ch_n<110)||(ch_n>349&&ch_n<360)||(ch_n>899&&ch_n<910)){dtv_m=dtv_mA;}
if(ch_n<10&&ch_n>-1){ch_n="___ "+ch_n;}
if(ch_n<100&&ch_n>9){ch_n="__ "+ch_n;}
if(ch_n<1000&&ch_n>99){ch_n="_ "+ch_n;}
L0="123456789-123456789-1234_CH<br>";L1="~RF CH. @ "+ch_fA+mZ+m6+"<br>";L2=" "+ch_n+" _ @ "+ch_fD+mZ+m7+"<br>";L3="________ "+ch_fDk+mK+" or<br>";L4="________ "+ch_fDh+mH+"<br>";L5=" "+ch_n+" _ "+ch_m+"<br>";L6="<br>";L7="Meant "+dtv_m0+ch_n+"?<br>"+dtv_m+"<br>";L8=(fm1.small(0))+"<br>";$cell_id="txtone";if(align=="Y"){$onetxt=L0+L1+L2+L3+L4+L5+L6+L7+L8+L0;}else{$onetxt=L1+L2+L3+L4+L5+L6+L7+L8;}
show_op()}
function show_op()
{document.getElementById($cell_id).style.backgroundColor="azure";document.getElementById($cell_id).style.border="1px solid black";document.getElementById($cell_id).style.color="blue";document.getElementById($cell_id).innerHTML=$onetxt;ch_fDk=ch_fDh=m="";}
function clear_area()
{document.getElementById($cell_id).style.border="0px solid black";document.getElementById($cell_id).innerHTML="";}
function freq_multi()
{var fm_n;var fn_n;var inp=prompt("Convert Ghz, Mhz, Khz, hz\nEnter Frequency # (default = hz)","177.500Mhz");if(inp!=null&&inp!="")
{inp=inp.toUpperCase();if(inp<0){inp=inp*(-1);}
inp2=inp1=inp;fm_n=1;if(inp1.match("H")){fm_n=fm_n*1e+0;inp=inp.substr(0,(inp.indexOf("H")));inp1=inp+" hz";}
if(inp1.match("K")){fm_n=fm_n*1000;inp=inp.substr(0,(inp.indexOf("K")));inp1=inp+" Khz";}
if(inp1.match("M")){fm_n=fm_n*1e+6;inp=inp.substr(0,(inp.indexOf("M")));inp1=inp+" Mhz";}
if(inp1.match("G")){fm_n=fm_n*1e+9;inp=inp.substr(0,(inp.indexOf("G")));inp1=inp+" Ghz";}
if(inp1.match("T")){fm_n=fm_n*1e+12;inp=inp.substr(0,(inp.indexOf("T")));inp1=inp+" Thz";}
if(inp1.match("P")){fm_n=fm_n*1e+15;inp=inp.substr(0,(inp.indexOf("P")));inp1=inp+" Phz";}
L1="Frequency Convertor T/G/M/K/hz<hr>"+inp1+" =<br>";L2=(inp*fm_n);if((L2>0)&&(L2<1e+9)){L2=L2+" hz<br>";}else{L2="";}
L3=(inp*fm_n/1000);if((L3>0.9)&&(L3<1e+9)){L3=L3+" Khz<br>";}else{L3="";}
L4=(inp*fm_n/1e+6);if((L4>0.9)&&(L4<1e+9)){L4=L4+" Mhz<br>";}else{L4="";}
L5=(inp*fm_n/1e+9);if((L5>0.9)&&(L5<1e+12)){L5=L5+" Ghz<br>";}else{L5="";}
L6=(inp*fm_n/1e+12);if((L6>0.9)&&(L6<1e+15)){L6=L6+" Thz<br>";}else{L6="";}
L7=(inp*fm_n/1e+15);if((L7>0.9)&&(L7<1e+18)){L7=L7+" Phz<br>";}else{L7="";}
L8="";if(align=="Y"){$onetxt=L0+L1+L2+L3+L4+L5+L6+L7+L8;}else{$onetxt=L1+L2+L3+L4+L5+L6+L7+L8;}
show_op()}}
function show_tv_calc_nav()
{document.getElementById("s_calc").style.display="block";}