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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Amateur Radio RF Exposure Calculator</title>
<link href="css/bootstrap.min.css" rel="stylesheet">
<link href="css/local.css" rel="stylesheet">
<link rel="shortcut icon" href="img/rflogo.webp" sizes="any">
</head>
<body>
<svg aria-hidden="true" id="svgdefs" version="2" xmlns="http://www.w3.org/2000/svg">
<defs>
<!-- Symbols from https://heroicons.com/ Copyright 2022 by Tailwind CSS used under MIT License -->
<symbol id="rt-chevron" xmlns="http://www.w3.org/2000/svg" class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
<path stroke-linecap="round" stroke-linejoin="round" d="M13 5l7 7-7 7M5 5l7 7-7 7" />
</symbol>
<symbol id="lt-chevron" xmlns="http://www.w3.org/2000/svg" class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
<path stroke-linecap="round" stroke-linejoin="round" d="M11 19l-7-7 7-7m8 14l-7-7 7-7" />
</symbol>
<symbol id="refresh" class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
<path stroke-linecap="round" stroke-linejoin="round" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
</symbol>
</defs>
</svg>
<header>
<div class="container-fluid p-1 mb-5 headerbar">
<img src="img/rflogo.webp" height="50px" class="mx-2" />
<span class="mx-3">RF Exposure Assessment Calculator</span>
</div>
</header>
<main>
<div class="container-md bg-white p-3 mb-5">
<div class="row calc-header">
<h2>Change Power and/or Frequency</h2>
<div class="progress p-0">
<div class="progress-bar progress-bar-striped" style="width: 90%" role="progressbar" aria-valuenow="90" aria-valuemin="100" aria-valuemax="100"></div>
</div>
</div>
<div class="row my-3">
<p>Often the same system must be asssessed for different frequencies and power levels.
This screen can change the frequency, input power, or both and will return to
the assessment report with the new values.</p>
</div>
<div class="row">
<p>Enter the radio, frequency, and power level to be evaluated:</p>
<div class="container-md">
<div class="row">
<div class="col-md-6">
<form id="report" name="report" class="form-l">
<div class="mb-3">
<label for="frequency">Frequency</label>
<br><i>Enter the frequency in MHz in the format NNN.NNN. Trailing zeros are not necessary.</i>
<input type="text" class="form-control" id="frequency" name="frequency" required>
</div>
<div class="mb-3">
<label for="power">Power Output in Watts</label>
<br><i>Enter the power output, in watts, of your radio and/or amplifier before it enters any feeline to an antenna.</i>
<input type="text" class="form-control" id="power" name="power" required>
</div>
<div class="mb-3">
<button type="button" onclick="nextClick('5')">Recalculate <svg class="svgicon"><use href="#refresh"></use></svg></button>
</div>
</form>
</div>
<div class="col-md-6">
<form class="form-l">
<div class="mb-3 row bg-primary">
<p class="text-center text-white text-bold"><b>Entered Station Information</b></p>
</div>
<div class="mb-3 row">
<label class="col-md-8 col-form-label" for="radioname">Radio</label>
<div class="col-md-4">
<input type="text" class="form-control-plaintext" id="radioname" name="radioname" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-8 col-form-label" for="feedtype">Feedline Type</label>
<div class="col-md-4">
<input type="text" class="form-control-plaintext" id="feedtype" name="feedtype" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-8 col-form-label" for="feedlength">Feedline Length</label>
<div class="col-md-4">
<input type="text" class="form-control-plaintext" id="feedlength" name="feedlength" readonly>
<input type="text" class="form-control-plaintext" id="feedunit" name="feedunit" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-8 col-form-label" for="feedloss">Power Loss per 100 units (dB)</label>
<div class="col-md-4">
<input type="text" class="form-control-plaintext" id="feedloss" name="feedloss" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-6 col-form-label" for="antennatype">Antenna Type</label>
<div class="col-md-6">
<input type="text" class="form-control-plaintext" id="antennatype" name="antennatype" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-6 col-form-label" for="antennagain">Antenna Gain (dB)</label>
<div class="col-md-6">
<input type="text" class="form-control-plaintext" id="antennagain" name="antennagain" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-6 col-form-label" for="dutycyclepct">Duty Cycle (%)</label>
<div class="col-md-6">
<input type="text" class="form-control-plaintext" id="dutycyclepct" name="dutycyclepct" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-6 col-form-label" for="txtime">Tx Time (min)</label>
<div class="col-md-6">
<input type="text" class="form-control-plaintext" id="txtime" name="txtime" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-6 col-form-label" for="rxtime">Rx Time (min)</label>
<div class="col-md-6">
<input type="text" class="form-control-plaintext" id="rxtime" name="rxtime" readonly>
</div>
</div>
<div class="mb-3 row">
<label class="col-md-6 col-form-label" for="rxtime">Include Ground-Effect</label>
<div class="col-md-6">
<input class="form-check-input" type="checkbox" value="" id="groundeffect" name="groundeffect" readonly>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</div>
</main>
<footer>
<div class="container-fluid">
<div class="row disclaimer px-5 py-2">
<h2>Important Disclaimer</h2>
<p>This site is one interpretation of the requirements of an amateur radio operator's obligations
and methods for ensuring compliance with the United States Federal Communication Commission's
requirements for RF exposure safety and analysis as required in OET Bulletin 65 and other
rules and regulations. This site is only guidance and may be incorrect or out-of-date with
current rules and interpretations of such rules. Use of this site is solely at your own risk
and the author(s) and operator(s) disclaim all liability resulting in any penalty or injury based
on information from this site. This site must never be used to ensure public safety or for commercial
purposes.
</p>
</div>
<div class="row bottom-footer px-5 py-2">
<p style="text-align:center">Copyright © Jason D. McCormick under the terms of the MIT License |
<a href="https://github.com/jxmx/rf-exp-assess">Code on GitHub</a>
</p>
</div>
</div>
</footer>
<script src="js/jquery-3.7.1.min.js"></script>
<script src="js/oet65.js"></script>
<script src="js/rfecalc.js"></script>
<script src="js/rf.js"></script>
</body>
</html>