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Rf Products & Telecom Towers
QMA
Product code FDCTNL
Based on the SMA connector standard, Rosenberger QMA connectors are designed for applications up to 18 GHz. The quick-lock mechanism enables easy and reliable connections in the tightest of spaces – primarily in mobile base stations – and 10 times faster compared to SMA offerings. Packing density is also superior to SMA due to the minimum pitch and toolless connection, dispensing with the need for torque spanners for fastening coupling nuts. Rosenberger offers QMA as standard version and with plastic quick-lock mechanisms in four different color codings. QMA is not intermateable with SMA.
- Impedance 50 Ω
- Interface according to IEC 61169-50
- Frequency range DC to 18 GHz
- Return loss (cable connector straight): ≥ 32 dB @ DC to 3 GHz; ≥ 25 dB @ 3 GHz to 6 GHz
- Minimum pitch 12.4 mm
- Flexibility 360° turnable
- Mating cycles ≥ 100
- Quick-lock mechanism
SIMILAR PRODUCTS

The RosenbergerHPD® universal multicore datalink connection system is optimized for data transmission up to 10 Gbps. In addition to high data performance, the centrally positioned power lane offers a power reserve of up to 100 W / 5 A – in combination with the cable shield as the ground lane. Providing data and power to complex systems through a single interface delivers several benefits including reduced costs and installation footprint. This robust, fully shielded connector is ideally suited to harsh environmental conditions, such as automotive applications, where frequent high data transmission and ampacity is required. Combined with Rosenberger’s specially designed multicore cable, featuring an optimized layout for low attenuation, virtually interference- and crosstalk-free performance is assured.
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RosenbergerHSD® is a homogeneous impedance-controlled interconnect system which directly addresses the high-speed data, low-voltage requirements of real-time automotive industry applications. Extremely compact and durable this 100 Ohm fully shielded interconnect system utilizes shielded twisted quad cables and features mechanical keying and latching for high connection retention, as well as coding to avoid misuse. Furthermore, these precision manufactured RosenbergerHSD®SF variants are ideally suited for process-safe and fully automated assembly by harness makers, facilitating a significant reduction in costs. Its high data throughput performance while also preventing interference from crosstalk and external sources makes the RosenbergerHSD® cable and PCB connector system the perfect choice for LVDS cameras, USB connections and IEEE 1394 applications. In addition, it is well-suited to many other applications including those found in digital infotainment electronics and digital symmetrical networks – even radio base stations.
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Rosenberger develops and offers traceability kits for precision interfaces for validation of measurements on vector network analyzers (VNAs). RPC-N (50 Ω) traceability kits are available. With traceability components from Rosenberger measurements on vector network analyzers are electrically characterized. These validation measurements are traceable to metrology standards such as PTB (Physikalisch-Technische Bundesanstalt Braunschweig) or NIST (National Institute of Standards and Technology).
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- TMM Telekom Makine Madencilik San. Ve Tic.Ltd.Şti is an international company serving the international market for the various needs of its customers.
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