Yea, I agree the connection for those customers needs to be the priority. But, taking more than one direction of fixing the problem is a good idea. What if the store is over EIRP and switching to h-pol only marginally improves the signal? Then its back to square one on getting the problem fixed.
On Sun, 2007-03-11 at 14:24 -0600, Travis Johnson wrote: > Again... are those 100 customers going to wait a few weeks while you > try and work it out? Or even better is if they decide because they > didn't have service that they aren't going to pay for that month... > 100 x $30 per month just paid for the switch to h-pol and the problem > is fixed. ;) > > Travis > Microserv > > Ryan Langseth wrote: > > Depending on how big your town is, and how they feel about Walmart, you > > should try sending a letter to the local newspaper. Also document > > everything, calls, letters, etc and post them to a web site. Then > > submit them to the bigger social networking news sites (digg slashdot > > reddit) make sure to put some good spin on it, make sure to let people > > know how many of you customers are affected by walmart's refusal to work > > with you. This will be especially effective if walmart has any sort of > > bad name in your town already. > > > > Ryan > > > > On Sun, 2007-03-11 at 13:28 -0600, Travis Johnson wrote: > > > > > The bigger issue is are your customers going to wait WEEKS while you > > > try and resolve this via attorneys, etc. My customers would be > > > SCREAMING after the first hour of downtime. > > > > > > The fastest solution is to switch to h-pol and start changing > > > customers. > > > > > > Travis > > > Microserv > > > > > > Rick Smith wrote: > > > > > > > no, 900 mhz rfid would be 20mhz bands. They MUST be exceeding EIRP, > > > > tho, > > > > because I've never seen problems with rfid at close ranges like that, > > > > and > > > > not having good reads with normal, or even less than normal power. > > > > Problem > > > > is, rfid is 100% tx/rx 100% of the time. > > > > > > > > How far away is this from you ? > > > > > > > > I guarantee it's a piece of bad equipment - cable or such - on their > > > > end, > > > > "leaking". > > > > > > > > Certified letter or bb gun, your choice... ;) > > > > > > > > -----Original Message----- > > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > > > > Behalf Of Bob Moldashel > > > > Sent: Sunday, March 11, 2007 2:41 PM > > > > To: WISPA General List > > > > Subject: Re: [WISPA] walmart rfid > > > > > > > > > > > > If their signal occupies the whole band it is probably FHSS in nature. > > > > So changing to a 5 or 10 Mhz. channel will not be possible. Also, it > > > > may not be possible to turn down the power. So it may not be that > > > > simple. > > > > > > > > A certified letter from an attorney is probably more in order. > > > > Unfortunately using unlicensed spectrum does not leave you with much > > > > recourse. This has been discussed over and over on these lists but the > > > > final outcome is always that you are taking a risk using Part 15 > > > > spectrum. > > > > > > > > Good luck in your battle. > > > > > > > > Bob > > > > > > > > > > > > > > > > Ray & Jean wrote: > > > > > > > > > > > > > > > > > Travis > > > > > Thanks for the input .that is a possible solution but not one that > > > > > could be implemented quickly or easily.It would require a new Hpol > > > > > omni about $2200 a climb to install it and a trip to about 100 > > > > > customers home to change their eum antenna to h pol.This may be how > > > > > it > > > > > gets resolved but really all we need to to do is have them turn the > > > > > power down on their equipment which only needs to reach 100 ft or the > > > > > area of their loading dock.or drop to a 5or 10 mhz channel that is > > > > > not > > > > > on our freq of 918.4.It would be a simple problem to resolve if we > > > > > could get any cooperation from walmart.Any ideas on how how we could > > > > > create interference to their system to get their attention.I realize > > > > > this is not the proper way to resolve the problem but it might > > > > > encourge them to be better rf neighbors maybe. > > > > > Thanks > > > > > Ray Hill > > > > > ----- Original Message ----- From: "Travis Johnson" <[EMAIL > > > > > PROTECTED]> > > > > > To: "WISPA General List" <[email protected]> > > > > > Sent: Sunday, March 11, 2007 11:47 AM > > > > > Subject: Re: [WISPA] walmart rfid > > > > > > > > > > > > > > > Hi, > > > > > > > > > > You may want to try changing polarity and see if that helps. Often > > > > > going > > > > > from vertical to horizontal will make a big difference. > > > > > > > > > > Travis > > > > > Microserv > > > > > > > > > > Ray & Jean wrote: > > > > > > > > > > > > > > > > > > > > > Hello List We have an interference problem come up this week that > > > > > > we > > > > > > have been unable to resolve.Hopefully someone here has some input > > > > > > on > > > > > > how to resolve it.The problem is walmart installed a rfid scanning > > > > > > system at there loading dock which instantly raised the noise floor > > > > > > at our 900 mhz waverider access point by 20 db which killed about > > > > > > 30 > > > > > > of our weakest links.this equipment is operating across the whole > > > > > > band so there is no way to change channels and get away from it.The > > > > > > walmart store manager says its not his problem and refuses to call > > > > > > the company that installed it .I called the company which is adt > > > > > > security and they refuse to do anything unless walmart request > > > > > > it.walmart home office will not return my calls and the regional > > > > > > manager actually hung up on me and will not take calls from us > > > > > > now.We > > > > > > have been very polite with them upto this point and gave them no > > > > > > reason to act like jerks.Does anyone have any suggestions on how to > > > > > > resolve this problem? > > > > > > Thanks > > > > > > Ray Hill > > > > > > surfmore. net > > > > > > > > > > > > > > > > > > > > > > > > > > -- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
