The mount attaches to the enclosure, and the antenna screws to the enclosure.
You can remove the whole thing from the mount, work on it, and put it back on the mount without losing alignment. - Jerry From: [email protected] [mailto:[email protected]] On Behalf Of Data Technology Sent: Monday, February 14, 2011 11:50 AM To: WISPA General List Subject: Re: [WISPA] Strange RF disconnect problem Looking at these panels, it looks like you would not easily change a card or board on the tower. Can these panels be swapped out without having to re-align? LaRoy On 2/14/2011 1:19 PM, Josh Luthman wrote: For 7 miles? Use the 23dbi ARC things. I get them from Streakwave. Jut ask for ARC wireless 23dbi panel/enclosures. Very lightweight solution (compared to a two foot dish!) Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Feb 14, 2011 at 2:16 PM, Data Technology <[email protected]<mailto:[email protected]>> wrote: This was not my design. I would not have used a pac grid on a link like this. Ice on them will cause them to drop signal. I would have used a 2 ft dish for this link but I think I will look at the arc panels. LaRoy On 2/14/2011 12:20 PM, Jerry Richardson wrote: Agreed. The overall cost is not that high compared to the time lost picking at it. I'd rather test and troubleshoot at the bench. - Jerry From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Josh Luthman Sent: Monday, February 14, 2011 10:14 AM To: WISPA General List Subject: Re: [WISPA] Strange RF disconnect problem If it were me, I would check that LMR and all that other garbage. Use the ARC 23dbi panel/enclosures. You'll lose 10dbi (less because of LMR400, connectors, pigtails, N connectors) but you'll have less to worry about when ice gets on the antenna (IME last week - none). Everything is enclosed and pretty and the mounting is easier then the grids and those stupid U bolts. Every time I've tried to swap a radio, or a board, or an antenna, or lmr400...it was a waste of time and money. Scrap the entire thing and do everything in one clean swoop. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Feb 14, 2011 at 1:10 PM, Data Technology <[email protected]<mailto:[email protected]>> wrote: After posting I recalculated what the signal strength should be and it turns out to be mid 50's. So I guess there is defiantly wrong in the rf system some where. On 2/14/2011 12:00 PM, Data Technology wrote: > Sorry for the long post but I need some suggestions here guys. > > Customer has a 7.3 mile 5ghz link. > MT 433AH on one end and MT 411AH on the other. > Version 4.16 on both units. > Both units have MT R52Hn cards. > 28 db grids on both ends with 6-10ft lmr400 jumper. > > Signal strength is -65 to -65 on one end and -66 to -67 on the other. > CCQ is 98 to 100% > > Configured as bridge wds on one end and station wds on the other. > > > This customer is a school and when they came back from Christmas break > the link was down. > This is in a rural area and no other 5 ghz systems show up in a scan so > it is a 50/50 shot at the one that is bad. > We changed the card in one unit and that was not it so we changed the > card in the other unit and the link came back up. > It was not working 100% and would go down and up but the signal looked > ok. It was at -70 at the time. > The only way I could get it to stay up was to change to a 5meg bandwidth. > > The link finally stabilized with the 5 meg channel. > This would have to do until we could go back and check cables and > connections. > > Well it has worked ok for the most part since then but we have noticed > that when it rains > the link starts dropping out again even though the signal stays good > when it is connected. > > Sounds like water in a connection so I went yesterday to check some > connections and they look good. > Had electrical tape, mastic, and electrical tape. I actually cut open > one just to inspect and was dry. > I know it only takes one connection to cause a problem but visual > inspection of all connections looked ok. > Next trip we will have new cables and new antenna. > > After I finished messing around with the first unit the link started > going down and up. > The strange thing about this is that when it is up the signal is a solid. > About every 60 seconds the link would drop out and come right back up. > It did this for about an hour and finally stabilized. Sounds like > interference. > > Here are a few lines from both logfiles. > > 05:28:53 wireless,info 00:0C:42:62:E4:82@wlan1: disconnected, extensive > data loss > 05:29:00 wireless,info 00:0C:42:62:E4:82@wlan1: connected, wants WDS > 05:30:01 wireless,info 00:0C:42:62:E4:82@wlan1: disconnected, extensive > data loss > 05:30:10 wireless,info 00:0C:42:62:E4:82@wlan1: connected, wants WDS > 05:31:10 wireless,info 00:0C:42:62:E4:82@wlan1: disconnected, extensive > data loss > 05:31:19 wireless,info 00:0C:42:62:E4:82@wlan1: connected, wants WDS > 05:32:20 wireless,info 00:0C:42:62:E4:82@wlan1: disconnected, extensive > data loss > 05:32:28 wireless,info 00:0C:42:62:E4:82@wlan1: connected, wants WDS > 05:33:29 wireless,info 00:0C:42:62:E4:82@wlan1: disconnected, extensive > data loss > 05:33:37 wireless,info 00:0C:42:62:E4:82@wlan1: connected, wants WDS > > > feb/13 16:14:51 wireless,info 00:0C:42:62:E0:A6@wlan1: lost connection, > not polled for too long > feb/13 16:14:58 wireless,info 00:0C:42:62:E0:A6@wlan1 established > connection on 5200, SSID Hillview > feb/13 16:16:01 wireless,info 00:0C:42:62:E0:A6@wlan1: lost connection, > not polled for too long > feb/13 16:16:08 wireless,info 00:0C:42:62:E0:A6@wlan1 established > connection on 5200, SSID Hillview > feb/13 16:17:10 wireless,info 00:0C:42:62:E0:A6@wlan1: lost connection, > not polled for too long > feb/13 16:17:17 wireless,info 00:0C:42:62:E0:A6@wlan1 established > connection on 5200, SSID Hillview > feb/13 16:18:19 wireless,info 00:0C:42:62:E0:A6@wlan1: lost connection, > not polled for too long > feb/13 16:18:26 wireless,info 00:0C:42:62:E0:A6@wlan1 established > connection on 5200, SSID Hillview > feb/13 16:19:28 wireless,info 00:0C:42:62:E0:A6@wlan1: lost connection, > not polled for too long > feb/13 16:19:35 wireless,info 00:0C:42:62:E0:A6@wlan1 established > connection on 5200, SSID Hillview > > > My Conclustions are possibly 2 problems. > > 1. Water somewhere ? > I will have to check each connection and or replace jumper cable > and possibly antenna. > Has anyone seen the grid element go bad and leak? > > 2. Interference ? > Maybe need spectrum analyzer to check things out. > What is the timing of a radar signal sweep? > > Also, one tower has a lot of slack in the guy wires and it was moving a > lot more than I liked in the wind yesterday. > I think that might be a problem but I don't think it would cause it to > drop every 60 seconds. > > > If you made it this far, thank for reading. > > LaRoy McCann > Data Technology > Trumann, AR > > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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