coolbuster2007 Posted October 20, 2007 CID Share Posted October 20, 2007 Hey guys, here's how to use Jitter to check received SmartBro signal quality. The General Status tab in the Home page of the Canopy SM displays current values for Jitter. This is an index of overall received signal quality. Interpret the jitter value as indicated in the table shown below. A Subscriber Module whose jitter value is constant at 14 may have an incoming packet efficiency of 100%. However, an SM whose jitter value is 14 is likely to have even higher jitter values as interfering signals fluctuate in strength over time. So, do not consider 14 to be acceptable. Avoiding a jitter value of 15 should be the highest priority in establishing a link. At 15, jitter causes fragments to be dropped and link efficiency to suffer. Canopy modules calculate jitter based on both interference and the modulation scheme. For this reason, values on the low end of the jitter range that are significantly higher in 2X operation can still be indications of a high quality signal. For example, where the amount of interference remains constant, an SM with a jitter value of 3 in 1X operation can display a jitter value of 7 when enabled for 2X operation. However, on the high end of the jitter range, do not consider the higher values in 2X operation to be acceptable. This is because 2X operation is much more susceptible to problems from interference than is 1X. For example, where the amount of interference remains constant, an SM with a jitter value of 6 in 1X operation can display a jitter value of 14 when enabled for 2X operation. As indicated in the table below, these values are unacceptable. Quote Link to comment Share on other sites More sharing options...
SiraComputer Posted October 20, 2007 CID Share Posted October 20, 2007 so enabling the 2x in the mac configuration also doubles the jitter? Quote Link to comment Share on other sites More sharing options...
coolbuster2007 Posted October 20, 2007 Author CID Share Posted October 20, 2007 so enabling the 2x in the mac configuration also doubles the jitter? "...an SM with a jitter value of 6 in 1X operation can display a jitter value of 14 when enabled for 2X operation" Quote Link to comment Share on other sites More sharing options...
Guest moore8 Posted December 12, 2007 CID Share Posted December 12, 2007 ITS BETTER TO CHANGE YOUR COLOR CODE WHO HAS JITTER BELOW 5, AND CHANGE THE QUALITY OF SERVICE TO 2X THEN CHANGE THE PRIORITY DOWNLOAD AND UPLOAD FROM 0 TO 1000 THEN USE PROXY SERVER. Quote Link to comment Share on other sites More sharing options...
xavier0156 Posted February 17, 2008 CID Share Posted February 17, 2008 r u sure? i read it from a forum enable quality service but i think we shouldnt mess with the Priority DL and UPload.. Quote Link to comment Share on other sites More sharing options...
renovation Posted February 18, 2008 CID Share Posted February 18, 2008 i cannot understand can you please explain to me in a cleraly way. thanks please iwant to know abiut it thanks. what is the purpose of 1x and 2x? Quote Link to comment Share on other sites More sharing options...
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