Einführung in das Hauptprodukt
Diese Public Safety Directional Coupler is specifically designed to support reliable signal distribution and monitoring in DAS networks operating within the 138-960MHz range. By coupling a defined portion of RF energy from the main transmission line, it allows engineers to monitor system performance without compromising coverage or signal integrity.
Optimized for emergency communication systems, the coupler delivers excellent impedance matching and low VSWR across VHF and UHF frequencies. Its robust mechanical structure and N-weiblich connectors ensure dependable performance in high-power, continuous-duty public safety installations where reliability is critical.
Warum dieses Produkt wählen?
- Speziell entwickelt für öffentliche Sicherheit and critical communication networks
- Directional coupling ensures controlled and predictable signal sampling
- Niedrige PIM design minimizes interference in multi-channel systems
- Standard 50Ω impedance for seamless RF integration
- Durable construction for indoor and outdoor DAS Einsätze
Anwendungsszenarien
- DAS für die öffentliche Sicherheit for police, fire, and emergency services
- VHF and UHF in-building coverage systems
- Signal monitoring points in critical communication networks
- Transportation hubs, tunnels, and large public facilities
- Mission-critical wireless infrastructure requiring high reliability
Elektrische Spezifikationen
| Allgemeine Spezifikationen | |
|---|---|
| Modell Nr. | MDC-VHF-XX-NF (XX means coupling in dB) |
| Freq(MHz) | 138-960 |
| VSWR | ≤1.30 |
| Leistung(W) | 200 (Durchschnitt) |
| Impedanz | 50 Ohm |
| Anschluss | N-weiblich |
| Farbe | Rot |
| Temp(deg) | -35~+65 |
| Anmeldung | IP60 |
| Size(mm)(exclude connector) | 344*40*19 |
| Gewicht(kg) | 1.0 |
| Kopplung (dB) | 3 | 4.8 | 6 | 7 | 8 | 10 | 13 | 15 | 20 |
|---|---|---|---|---|---|---|---|---|---|
| Genauigkeit(dB) | ±1.3 | ±1.4 | ±1,5 | ±1.7 | ±1.8 | ±2.0 | ±2.0 | ±2.0 | ±2.0 |
| Einfügungsdämpfung(dB) | ≦3.65 | ≦2.20 | ≦1.75 | ≦1.45 | ≦1.35 | ≦0.90 | ≦0.70 | ≦0.50 | ≦0.4 |
| Isolierung(dB) | ≧18 | ≧19 | ≧21 | ≧22 | ≧23 | ≧25 | ≧28 | ≧30 | ≧35 |
Häufig gestellte Fragen
- What is a directional coupler used for?
- A directional coupler samples a portion of the RF signal traveling in a specific direction, allowing accurate signal monitoring while minimizing impact on the main transmission path in DAS and public safety systems.
- Why is this coupler suitable for public safety networks?
- Es unterstützt die 138-960MHz range commonly used by public safety services and features stable electrical performance required for mission-critical communications.
- What role does Low PIM play in this application?
- Niedrige PIM reduces intermodulation interference that can degrade receiver sensitivity, which is essential for maintaining clear communication in emergency situations.
- Why are N-Female connectors used?
- N-weiblich connectors provide secure, low-loss connections capable of handling higher power levels, making them ideal for public safety and DAS Installationen.
- Can this coupler be used in indoor and outdoor systems?
- Yes. The coupler is built with a rugged design suitable for both indoor and outdoor DAS deployments in demanding environments.
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