On Tue, Jul 3, 2012 at 8:35 AM, James Cameron <qu...@laptop.org> wrote:
> On Fri, Jun 29, 2012 at 02:19:34PM +0545, Roshan Karki wrote: > > Nandbalsting simply doesn't start in that problematic xo. > > Could you please give more detail on this? > > Please try the nb command manually: > > ok nb > > Is the message "No multicast NAND server" displayed? > Yes, I get this message. > > > no error and I also can connect and use Internet from sugar. Though > > all of the xo in sets have same firmware I even tried updating the > > firmware to latest version to see if it would help. > > > > "open-wlan 6 multinand-traffic? . close-wlan" doesn't return > > ffffffff. I tried changing server, starting them in different > > channel. What could be the problem here? > > This is a good test, only if your sender is operating on channel 6. > If it is not, the test is not good. > Yes the sender is operating on channel 6. > > You say it doesn't return ffffffff. What does this test do instead? > > I have tested here. If the multinand-traffic? command is not > returning ffffffff then it should return 0 (zero). > > If it returns zero, then it is because there was no multicast traffic > received with a valid multicast address. > > Do you see zero, or does it not return to ok prompt at all? > It returns to OK prompt. No 0 or any thing. > > On Mon, Jul 02, 2012 at 10:36:57AM +0545, Roshan Karki wrote: > > I tried doing as you've mentioned. My results are no matter which > > antenna is selected covering the right antenna caused > > decrease(number increased) in average RSSI. Left antenna didn't > > react. There's only around -1 difference in average RSSI between > > antenna 1 and 2. In diversity mode covering any or both antenna > > didn't cause any change in average RSSI. > > > > BTW pressing 'd' allowed me to go back to diversity mode. > > On Mon, Jul 02, 2012 at 10:53:54AM +0545, Roshan Karki wrote: > > I performed the diagnostic in one of the working XO as well. The > > outcome for single antenna selected mode was exact i.e. covering > > left antenna didn't change > > > > anything while covering right did in both antennas. While in > > diversity mode covering any caused average RSSI to decrease (number > > increase). > > Thanks. I have tested with two XO-1 and see identical trends. > > What are your results in average RSSI dB, with antenna uncovered? > I also have access point in another room 10m away. I averaged around -75 with antenna uncovered. > > Here are my results. Numbers are average RSSI dB after 10 seconds. > Access point is in another room 10m away. > > Test start, SKU1 -59, SKU39 -56. > > SKU1 covered left antenna -69, covered right antenna -68, > SKU39 covered left antenna -66, covered right antenna -70. > Conclusion: both antennas are in use. > > press 1, SKU1 -62, SKU39 -54 > SKU1 covered left antenna -62, covered right antenna -82, > SKU39 covered left antenna -54, covered right antenna -71, > Conclusion: right antenna is in exclusive use. > > press d, SKU1 -59, SKU39 -56 > SKU1 covered left antenna -76, covered right antenna -75, > SKU39 covered left antenna -62, covered right antenna -66, > Conclusion: both antennas are in use. > > press 2, SKU1 -62, SKU39 -56 > SKU1 covered left antenna -64, covered right antenna -77, > SKU39 covered left antenna -55, covered right antenna -70, > Conclusion: right antenna is in exclusive use. > > press d, SKU1 -61, SKU39 -57 > SKU1 covered left antenna -74, covered right antenna -66, > SKU39 covered left antenna -63, covered right antenna -69, > Conclusion: both antennas are in use. > > press 0, SKU1 -60, SKU39 -57 > SKU1 covered left antenna -75, covered right antenna -70, > SKU39 covered left antenna -66, covered right antenna -67, > Conclusion: both antennas are in use. > > press d, SKU1 -61, SKU39 -57 > > press l, SKU1 -62, SKU39 -55 > SKU1 covered left antenna -62, covered right antenna -77, > SKU39 covered left antenna -55, covered right antenna -69, > Conclusion: right antenna is in exclusive use. > > press d, SKU1 -60, SKU39 -57 > > press r, SKU1 -62, SKU39 -54 > SKU1 covered left antenna -62, covered right antenna -82, > SKU39 covered left antenna -55, covered right antenna -67, > Conclusion: right antenna is in exclusive use. > > press d, SKU1 -59, SKU39 -56 > > Overall conclusion: XO-1 SKU1 and SKU39 have diversity receive and can > also be configure for right antenna only. The test cannot configure > for left antenna only. > Therefore this test is not very useful to you, sorry! > No worries :) . I think I should once send this XO for maintenance. Any other checks you want me to do before that? > > -- > James Cameron > http://quozl.linux.org.au/ >
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