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Growth and advancement of technology when X2 calculated (0.07616) was less than X2 tabulated (9.488). A synergy was arrived at between speedy Broadband Indicated X2 calculated (4.25) to be less than X2 tabulated (9.488). The impact of Broadband infrastructure as an antidote to revolutionize ICT service delivery Showed that Broadband penetration constituted a major problem to ICT service delivery. Out of these, only less than 9 per cent were Broadband-based. Government statistics put Internet penetration in The study examined Broadband infrastructural deficit and the growth potentials of Information andĬommunications Technology in Cross River State of Nigeria, by using three–to-five scale closed-ended questionnaires.Ĭross River State has a population of about 3,104,446 yet by 2014, it was estimated that mobile BroadbandĬonnections in Cross River State was below 50,000 subscribers. From the study, this effect can be mitigated by increasing the size of the radiator. However, a slight reduction in the aerodynamic performance of the system was observed. Almost all the blade rate tone levels were reduced which further increased the acoustical performance of the fan. Further observation showed that 10.89 dB SPL reduction was achieved by applying the flexible band on the fan used for the 100 kVA generating set. The band was found to effectively reduce the radiated sound levels (BPF tone) for the 100 kVA fan. In order to reduce the discrete tones at the blade passing frequency (BPF), the baseline fan were banded with a light flexible cylindrical plastic material. It was observed that the un-banded fan used for 100 kVA generating set had SPL peak of 84 dB, at the fundamental blade passing frequency (BPF). The background noise levels (BNL) were determined. Matrix Laboratory Application Software (MATLAB) was used for analysis of results. The sound power level (SWL) and sound intensity level (SIL) of the fans were calculated using values obtained from the measured SPL. Discrete frequency tones of the cooling fans were measured within the audio and narrow band ranges using the calibrated TrueRTA spectrum analyzer.
Comm tech 2 tone decoder software free download windows#
If the box is grayed out and you can not do it this way, click on the Windows icon, type in run in the search box, then find run program made. Go to the start icon for tech2win, right click it and go to properties, and see if you can click the box and make it run it in win 7 mod. FT8 we use the seven-tone sequence 3, 1, 4, 0, 6, 5, 2 inserted at. Putting tech2 win into win 7 compatibility mode is not hard to do. These assisted in obtaining accurate sound pressure level (SPL) data on the fan noise. under version 3 of the Free Software Foundations General Public. The radiated sound levels were measured without contributions from other engine noise sources. The measuring and fabricated materials used in carrying out the measurements were: digital sound level meter (SLM), frequency analyzer, AC electric motor, flange, basement and generating set cooling fan. This research work concentrates on measuring, analyzing and predicting the reduction of discrete frequency noise levels with focus on Perkins 100 kVA cooling fans.