The MAS4477 and MAS4478 matrices distribute eight L-band signals to eight receivers in the frequency range of 950 to 2150 MHz without any blocking. Their feature sets are identical other than the fact that the 4477 features 50 Ω SMA female RF connectors, while the 4478 features 75 Ω F/BNC female connectors.
The units boast very good RF shielding and consist of the following subassemblies: amplifiers with high dynamic range, matrix board (8x8), processor board, LAN interface, manual control, redundant power supply and DC bias for LNB. All the necessary signal and power supply connections as well as the mains switches are provided at the rear.
The matrices are controlled via a LAN interface. Their integrated web server enables unit configuration, shows status information and obtains troubleshooting information. Cross-point settings are also possible. The units are constructed using a modular approach utilising plug-in subassemblies which enable ease of installation and maintenance.
The GTS5635 switching unit is required for automatic redundancy switching of IF and L-band signals in the 30-2150 MHz frequency range. It is composed of subassemblies with DPDT solid-state switches, attenuators (fixed and programmable), amplifiers, directional couplers, control logic, redundant power supply modules, LAN interface and mimic with manual control.
As with the above matrices, all the necessary signal and power supply connections and mains switches are provided at the back of the unit and control is via a LAN interface. Gain setting and selection of the RF path can also be done manually on the front panel. A status string can also be requested at any time via the control interface.
Power amps for portable radio comms systems iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
CML Micro expands its SµRF product portfolio with a pair of high efficiency single- and two-stage power amplifiers that offer outstanding performance for a wide range of dual-cell lithium battery-powered wireless devices.
Read more...RF agile transceiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.
Read more...TDK expands programmable PSU series Accutronics
Test & Measurement
With a 3U high chassis, the GAC and GAC-PRO provide extremely high-power density for a fully featured programmable AC power source.
Read more...High-current EMI filters Accutronics
Power Electronics / Power Management
TDK has introduced 20 and 40 A, 80 V DC board-mount EMI filters, reducing differential mode conducted emissions for switching power supplies with high input current requirements.
Read more...Choosing a GNSS receiver RF Design
Telecoms, Datacoms, Wireless, IoT
Applications requiring sub-ten-meter positioning accuracy today can choose between single-band or dual-band technology. While this decision might seem as simple as flipping a coin, it is far from that.
Read more...Tri-Teq’s latest range of filters RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
Tri-Teq recently presented its latest filter products, which included passive and co-site mitigation filters (lumped element and suspended substrate technologies) and tunable filters (bandpass and harmonic switched filters).
Read more...The evolution of 4D imaging radar Altron Arrow
Telecoms, Datacoms, Wireless, IoT
4D imaging radar is redefining automotive sensing with unmatched precision, scalability and resilience and, as global adoption accelerates, this technology is poised to become a cornerstone of autonomous mobility.
Read more...Links Field Networks: The perfect fit for telematics in Africa Links Field Networks
Telecoms, Datacoms, Wireless, IoT
Operating at the intersection of global SIM innovation and local market intelligence, Links Field Networks has emerged as a premier provider of telematics-oriented connectivity across Africa and beyond.
Read more...RF direct conversion receiver iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The CMX994 series from CML Micro is a family of direct conversion receiver ICs with the ability to dynamically select power against performance modes.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version