.. title: RF Sinyal-Gürültü Oranı (SNR) Hesaplayıcı
.. sümüklü böcek: rf-sinyaltonoiseratio
.. tarih: 2025-12-26 15:00:00 UTC
.. Etiketler: ağ oluşturma, hesap makinesi, araç
.. kategori: Hesap Makineleri
.. bağlantı:
.. açıklama: Sinyal ve gürültü gücünden dB cinsinden sinyal-gürültü oranını (SNR) hesaplayın. Kablosuz bağlantı kalitesini değerlendirin, paraziti teşhis edin ve modülasyonun gerçekleştirilebilirliğini tahmin edin.
.. yazın: metin
<style>
    .calc-container {
        max-width: 900px;
        margin: 20px auto;
        padding: 20px;
    }

    .calc-header {
        margin-bottom: 30px;
        padding: 25px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 12px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        color: white;
    }

    .calc-header h2 {
        margin-top: 0;
        color: white;
        font-size: 28px;
        margin-bottom: 10px;
    }

    .calc-header p {
        margin: 10px 0;
        opacity: 0.95;
        font-size: 15px;
    }

    .form-group {
        margin-top: 20px;
    }

    .form-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
        margin-bottom: 15px;
    }

    .input-wrapper {
        display: flex;
        flex-direction: column;
    }

    .input-label {
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 8px;
        color: white;
        opacity: 0.95;
    }

    .calc-input {
        padding: 14px;
        font-size: 16px;
        border: 2px solid rgba(255,255,255,0.3);
        border-radius: 6px;
        font-family: 'Courier New', monospace;
        background: rgba(255,255,255,0.95);
        transition: all 0.3s ease;
        color: #333;
    }

    .calc-input:focus {
        outline: none;
        border-color: #4CAF50;
        background: white;
        box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
    }

    .calc-button {
        padding: 14px 35px;
        font-size: 16px;
        background: #4CAF50;
        color: white;
        border: none;
        border-radius: 6px;
        cursor: pointer;
        font-weight: bold;
        transition: all 0.3s ease;
        box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        margin-top: 15px;
        min-width: 150px;
    }

    .calc-button:hover {
        background: #45a049;
        transform: translateY(-1px);
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    }

    .calc-button:active {
        background: #3d8b40;
        transform: translateY(0);
    }

    .result-section {
        background: white;
        border: 1px solid #e0e0e0;
        border-radius: 8px;
        margin-top: 30px;
        overflow: hidden;
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        transition: all 0.3s ease;
        display: none;
    }

    .result-section.show {
        display: block;
    }

    .result-section:hover {
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }

    .section-header {
        background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
        color: white;
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        user-select: none;
    }

    .section-header h3 {
        margin: 0;
        font-size: 18px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .section-header .icon {
        font-size: 20px;
    }

    .section-content {
        padding: 20px;
        background: #fafafa;
    }

    .data-row {
        display: flex;
        margin: 12px 0;
        padding: 10px;
        background: white;
        border-radius: 4px;
        border-left: 3px solid #4CAF50;
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    .data-label {
        font-weight: bold;
        color: #555;
        min-width: 180px;
        flex-shrink: 0;
    }

    .data-value {
        color: #333;
        font-family: 'Courier New', monospace;
        word-break: break-word;
    }

    .data-value.highlight {
        color: #4CAF50;
        font-weight: bold;
        font-size: 18px;
    }

    .result-alert {
        padding: 15px 20px;
        border-radius: 8px;
        border-left: 4px solid;
        margin: 15px 0;
        display: flex;
        align-items: flex-start;
        gap: 15px;
    }

    .result-alert.success {
        background: #e8f5e9;
        border-color: #4CAF50;
        color: #2e7d32;
    }

    .result-alert.warning {
        background: #fff3e0;
        border-color: #ff9800;
        color: #e65100;
    }

    .result-alert.error {
        background: #ffebee;
        border-color: #f44336;
        color: #c62828;
    }

    .result-icon {
        font-size: 28px;
        flex-shrink: 0;
    }

    .result-content {
        flex: 1;
    }

    .result-title {
        font-weight: bold;
        font-size: 16px;
        margin-bottom: 8px;
    }

    .result-details {
        font-size: 14px;
        line-height: 1.6;
    }

    .help-text {
        margin-top: 15px;
        font-size: 14px;
        color: rgba(255,255,255,0.9);
        background: rgba(0,0,0,0.1);
        padding: 10px 15px;
        border-radius: 4px;
    }

    .help-text strong {
        color: white;
    }

    .info-section {
        margin-top: 30px;
        padding: 20px;
        background: white;
        border-radius: 8px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        border-top: 3px solid #4CAF50;
    }

    .info-section h4 {
        margin-top: 0;
        color: #333;
        font-size: 16px;
    }

    .info-section p {
        color: #666;
        font-size: 14px;
        line-height: 1.6;
        margin: 10px 0;
    }

    .snr-table {
        width: 100%;
        margin-top: 15px;
        border-collapse: collapse;
    }

    .snr-table th,
    .snr-table td {
        padding: 10px;
        text-align: left;
        border-bottom: 1px solid #e0e0e0;
    }

    .snr-table th {
        background: #f5f5f5;
        font-weight: bold;
        color: #555;
    }

    .snr-table td:first-child {
        font-family: 'Courier New', monospace;
        font-weight: bold;
    }

    /* Responsive design */
    @media (max-width: 768px) {
        .form-row {
            grid-template-columns: 1fr;
        }

        .data-row {
            flex-direction: column;
        }

        .data-label {
            margin-bottom: 5px;
            min-width: auto;
        }

        .calc-button {
            width: 100%;
        }
    }
</style>
<div class="calc-container">
<div class="calc-header">
<h2>RF Sinyali Gürültü Oranı Hesaplayıcısı</h2>
<p>Kablosuz sinyal kalitesini belirlemek ve cihaz bağlantı sorunlarını tahmin etmek için Sinyal-Gürültü Oranını (SNR) hesaplayın.</p>
<div class="form-group">
<div class="form-row">
<div class="input-wrapper">
<label class="input-label" for="signal">Sinyal Gücü (dBm):</label>
<input class="calc-input" id="signal" placeholder="e.g., -20" type="text" value="-20"/>
</div>
<div class="input-wrapper">
<label class="input-label" for="noise">Gürültü Seviyesi (dBm):</label>
<input class="calc-input" id="noise" placeholder="e.g., -40" type="text" value="-40"/>
</div>
</div>
<button class="calc-button" onclick="snr()" type="submit">SNR'yi hesapla</button>
</div>
<div class="help-text">
<strong>Not:</strong>SNR, Sinyal - Gürültü olarak hesaplanır. Daha yüksek değerler daha iyi sinyal kalitesini gösterir. Güvenilir kablosuz bağlantı için minimum 15-20 dB SNR önerilir.</div>
</div>
<div class="result-section" id="resultSection">
<div class="section-header">
<h3><span class="icon">📊</span>Sonuçlar</h3>
</div>
<div class="section-content">
<div id="snrResult"></div>
</div>
</div>
<div class="info-section">
<h4>Sinyal-Gürültü Oranını (SNR) Anlamak</h4>
<p>Sinyal-Gürültü Oranı, kablosuz iletişimde istenen sinyalin arka plan gürültüsüne göre gücünü ölçen kritik bir ölçümdür.
            Gürültü seviyesinin sinyal gücünden (her ikisi de dBm cinsinden) çıkarılmasıyla hesaplanır.</p>
<p>
<strong>SNR Kalite Yönergeleri:</strong>
</p>
<table class="snr-table">
<thead>
<tr>
<th>SNR Aralığı</th>
<th>Kalite</th>
<th>Beklenen Performans</th>
</tr>
</thead>
<tbody>
<tr>
<td>40+dB</td>
<td>Harika</td>
<td>Maksimum verim, paket kaybı yok</td>
</tr>
<tr>
<td>25-40 dB</td>
<td>Çok güzel</td>
<td>Yüksek verim, minimum sorun</td>
</tr>
<tr>
<td>15-25 dB</td>
<td>İyi</td>
<td>Güvenilir bağlantı, orta düzeyde verim</td>
</tr>
<tr>
<td>10-15 dB</td>
<td>Adil</td>
<td>Temel bağlantı, olası paket kaybı</td>
</tr>
<tr>
<td>5-10 dB</td>
<td>Fakir</td>
<td>Kararsız bağlantı, sık sık bağlantı kesilmesi</td>
</tr>
<tr>
<td>&lt; 5 dB</td>
<td>Çok Zayıf</td>
<td>Kullanılamaz durumda, bağlantı hataları</td>
</tr>
</tbody>
</table>
</div>
</div>
<script>
    function snr() {
        // Set variables from input
        var signal = Number(document.getElementById("signal").value);
        var noise = Number(document.getElementById("noise").value);

        var snr = signal - noise;
        var resultSection = document.getElementById("resultSection");
        var resultDiv = document.getElementById("snrResult");

        // Show result section
        resultSection.classList.add("show");

        // Determine result category and display appropriate message
        if (snr < 0) {
            resultDiv.innerHTML = `
                <div class="result-alert error">
                    <div class="result-icon">🚫</div>
                    <div class="result-content">
                        <div class="result-title">Signal Overpowered by Noise</div>
                        <div class="result-details">
                            The noise level is stronger than the signal. Wireless devices will not function in this area.
                            Consider reducing interference sources or improving signal strength.
                        </div>
                    </div>
                </div>
                <div class="data-row">
                    <div class="data-label">Calculated SNR:</div>
                    <div class="data-value highlight">${snr} dB</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Signal Strength:</div>
                    <div class="data-value">${signal} dBm</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Noise Level:</div>
                    <div class="data-value">${noise} dBm</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Status:</div>
                    <div class="data-value">Unusable - Noise exceeds signal</div>
                </div>
            `;
        } else if (snr >= 0 && snr <= 15) {
            resultDiv.innerHTML = `
                <div class="result-alert warning">
                    <div class="result-icon">⚠️</div>
                    <div class="result-content">
                        <div class="result-title">Poor Signal Quality</div>
                        <div class="result-details">
                            SNR is ${snr} dB. Devices may experience association issues, intermittent connectivity,
                            reduced throughput, and increased packet loss due to poor signal quality.
                        </div>
                    </div>
                </div>
                <div class="data-row">
                    <div class="data-label">Calculated SNR:</div>
                    <div class="data-value highlight">${snr} dB</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Signal Strength:</div>
                    <div class="data-value">${signal} dBm</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Noise Level:</div>
                    <div class="data-value">${noise} dBm</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Status:</div>
                    <div class="data-value">Poor - Improvement recommended</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Recommendation:</div>
                    <div class="data-value">Increase signal strength or reduce noise interference for better performance</div>
                </div>
            `;
        } else {
            resultDiv.innerHTML = `
                <div class="result-alert success">
                    <div class="result-icon">✓</div>
                    <div class="result-content">
                        <div class="result-title">Good Signal Quality</div>
                        <div class="result-details">
                            SNR is ${snr} dB. Devices should associate and operate without issues.
                            This signal quality supports reliable wireless connectivity and good throughput.
                        </div>
                    </div>
                </div>
                <div class="data-row">
                    <div class="data-label">Calculated SNR:</div>
                    <div class="data-value highlight">${snr} dB</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Signal Strength:</div>
                    <div class="data-value">${signal} dBm</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Noise Level:</div>
                    <div class="data-value">${noise} dBm</div>
                </div>
                <div class="data-row">
                    <div class="data-label">Status:</div>
                    <div class="data-value">Good - Acceptable for wireless connectivity</div>
                </div>
            `;
        }

        // Scroll to results
        resultSection.scrollIntoView({ behavior: 'smooth', block: 'start' });
    }

    // Add enter key support
    document.addEventListener('DOMContentLoaded', function() {
        document.getElementById('signal').addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                snr();
            }
        });

        document.getElementById('noise').addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                snr();
            }
        });
    });
</script>