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Moreover, the main lobe of the MSK signal is wider, which means more energy in the null-to-null bandwidth. However, this can be also the disadvantage where extremely narrow bandwidth is required (null-to-null bandwidth of QPSK is equal to 3dB-bandwidth, null-to-null bandwidth of the MSK signal is 1.5 times as large as the 3dB-bandwidth. [6]
It was originally created for MS-DOS, and OS/2 versions were released up to version 4.4. [1] Several editions of each version, such as MKS Toolkit for developers, power users, enterprise developers and interoperability are available, with the enterprise developer edition being the most complete. [2] Before PTC, MKS Toolkit was owned by MKS Inc.
Bluetooth 1 modulates with Gaussian minimum-shift keying, a binary scheme, so either modulation choice in version 2 will yield a higher data rate. A similar technology, IEEE 802.15.4 (the wireless standard used by Zigbee) also relies on PSK using two frequency bands: 868 MHz and 915 MHz with BPSK and at 2.4 GHz with OQPSK.
Greenman has also developed DominoF and DominoEX for NVIS radio communications on the upper MF and lower HF frequencies (1.8–7.3 MHz). Automatic link establishment (ALE) is a protocol developed by the United States military and used mainly as an automatic signalling system between radios.
Qt (/ˈkjuːt/ or /ˈkjuː ˈtiː/; pronounced "cute" [7] [8] or as an initialism) is a cross-platform application development framework for creating graphical user interfaces as well as cross-platform applications that run on various software and hardware platforms such as Linux, Windows, macOS, Android or embedded systems with little or no change in the underlying codebase while still being ...
Based on Apple QuickTime 7.2, [6] QuickTime Alternative 1.95 is the first version that doesn't support Windows 2000 [7] or CPUs without SSE. [7] On December 15, 2007, QuickTime Alternative 2.20 was released and it was based on Apple QuickTime 7.3.1.70. From this version upwards support for CPUs without SSE is restored back again. [8]
Continuous phase modulation (CPM) is a method for modulation of data commonly used in wireless modems.In contrast to other coherent digital phase modulation techniques where the carrier phase abruptly resets to zero at the start of every symbol (e.g. M-PSK), with CPM the carrier phase is modulated in a continuous manner.
64-bit (including arm64 as technology preview) 10 and 11 for Qt 6; 32-bit and 64-bit (i.e. x86 and x86_64) for Qt 5.13 [19] for Microsoft Windows 7 and newer, [20] 8.1 and 10; Qt 5.6 version supported: Windows XP and Vista: Windows CE: Older Qt versions had support for Windows CE 6 and Windows Embedded Compact 7. [21] Windows RT: Universal ...