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LoRa wireless module targets IoT Microchip Technology’s first module for ultra long-range and low-power network standard is a stack-on-board package; the RN2483 module is intended to simplify access to the 10-mile range and 10-year battery life of LoRa technology wireless networks. The module is the first in a planned series for the LoRa technology low-data-rate wireless networking standard, which enables Internet of Things (IoT) and Machine-to-Machine (M2M) wireless communication with a range of more than 10 miles (suburban), a battery life of greater than 10 years, and the ability to connect millions of wireless sensor nodes to LoRa technology gateways. The 433/868 MHz RN2483 is a European R&TTE Directive Assessed Radio Module, accelerating development time while reducing development costs. It combines a 17.8x26.3x3mm module form factor of with 14 GPIOs, providing the flexibility to connect and control a large number of sensors and actuators while taking up very little space. The RN2483 comes with the LoRaWAN protocol stack, so it can connect with the established and rapidly expanding LoRa Alliance infrastructure—including both privately managed LANs and telecom-operated public networks. Microchip www.microchip.com PCB Prototypes & Small Series PCB Manufacturing from 8 hours FREE SMT stencil with EVERY Prototype order! sales@pcb-pool.com www.pcb-pool.com PCB-POOL® is a registered trademark of Beta LAYOUT GmbH 802.11ac Wave 2 access point delivers multi-Gigabit Wi-Fi The Ruckus ZoneFlex R710 access point (AP) based on Wave 2 features of the 802.11ac standard supports the simultaneous transmission of multiple client streams to different devices over the same frequency. This multi-user multiple input/multiple output (MUMIMO) feature enables over two times the density of mobile devices versus Wave 1, and aggregate data rates exceeding two gigabits per second. Within a sleek new design, the Ruckus ZoneFlex R710 access point supports up to four spatial streams and 500 concurrent clients. Additionally, each ZoneFlex R710 access point integrates Ruckus-patented BeamFlex+ adaptive antenna technology, designed to enhance the operation of Wave 2 802.11ac technology by optimizing antenna coverage on a per client, per transmission basis. With four discrete, dual-band smart antenna arrays, the ZoneFlex R710 is capable of dynamically creating over 4,000 unique directional antenna patterns per radio, mitigating up to 15dB of RF interference while also reducing co-channel interference. Dual-polarized smart antennas also allow the R710 to automatically adapt to the changing physical orientation of mobile client devices such as smartphones and tablets. With BeamFlex+, the ZoneFlex R710 also offers a significant increase in performance and range, delivering up to 5dB of signal gain and aggregate data rates of over two gigabits per second (Gbps), 1,733 Mbps (at 5 GHz) and 800 Mbps (at 2.4 GHz). Ruckus Wireless www.ruckuswireless.com Miniature signal generator outputs 25 to 6000MHz in 1KHz steps AtlanTecRF’s ASG series of Miniature Signal Generators cover an ultra-wide frequency range of 25 to 6000MHz, tuneable in 1KHz steps, with a very good spectral purity. Phase noise at an output frequency of 1GHz is better than -106dBc/ Hz at an offset of 100KHz from the carrier. Spurious are typically lower than -70dBc and harmonics less than -25dBc. The clean output signal combined with power levels to +13dBm, controllable on 0.1dB steps, make the ASG series of Miniature Signal Generators suitable for use in most RF theatres of application including test and measurement, communications systems and covert interception and countermeasures. The versatile ASG digital interface provides control options which include direct USB with convenient and clearly functional GUI plus input power derivation but each unit also has the capability of being driven by RS232. Additionally, for both the 6GHz version of the ASG Miniature Signal Generator and its 3GHz sibling there is an option of Ethernet control thereby allowing totally remote and unattended operation in the field and picking up all the logistics and cost advantages. Frequency stability is determined by an internal TCXO with +/-1ppm maximum variation over the -20 to +50C operating temperature range. Atlantic Microwave Ltd www.atlanticmicrowave.co.uk www.electronics-eetimes.com Electronic Engineering Times Europe April 2015 37


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