As someone had mentioned in another thread, the system allows you to use many types of readers, antennas, and tags. So each person can use whatever configuration fits their needs best. If you understand the rules of using RFID (
discussed here) you can make just about any setup work very well. The read rates you get are basically in your own hands.
I'm always happy to hear when someone gets 100% with a different setup than I recommend, but over the last couple of years I've had others report back that they purchased mat antennas (often from China) and they were getting about 30-60% read rates when using only mat antennas on the finish line. I know some others that purchased name brand mat antennas and when they were used all by themselves the read rates were not much better. When using only mat antennas on the finish line and a chip on the bib it didn't surprise me that the read rates were so poor because the tag is coming across the mat at the worst angle possible (90 degrees) and there is a very good chance that the tag is hidden by some part of their body (belly, breast, etc.). On top of that, when the tag is on the bib it could be breaking other rules with RFID - proximity to body or on a wet (sweaty) surface. I'm not sure how many of these users I'm referring to have joined this forum, so if you've tried a mat antenna I'd encourage you to chime in with what kind your purchased and your review of it.
So I have to ask, are you using ONLY mat antennas or do place panel antennas on the side (angled in towards the finish) like I see with many Chronotrack setups? If you are using side-mounted panel antennas, then I wouldn't be surprised if those antennas are what is doing most of the work. How many races have you timed with mat antennas using bib tags, and how many people were in the race?
Of course I'm happy to hear that you're getting 100%, and in no way am I trying to argue with anyone that says they're getting good results with whatever setup they are using. However my concern is that new users will read some of these threads and assume that they need to go out and spend a ton of money on mat antennas and then blame it on my software if their read rates are not 100%. They might also assume that my recommended setup hasn't worked well and that they must buy all of this extra stuff to get good read rates. The majority of the people using this system simply need an easy an inexpensive system for small to medium sized road races. Most people set everything up the same way that I do and in almost every case they get the same results that I do - 100% read rates. We've personally probably timed close to 100 races this year, so I know it works well. If you look back at some of the other posts from those using bib tags or mat antennas you'll see some where people say stuff like 'I only had 5 missed tags" or something along those lines. Rarely do I hear 100% even though that is what I get at just about every race we time. So in order to keep my support level down I encourage people to use my recommended setup whenever possible. When someone doesn't get good read rates it takes me many hours or even days to work with them to figure what what could have been the problem. So that's why I encourage new customers not to use bib tags or mat antennas unless they are in a position where you have to use them for whatever reason.
When I state that my recommended setup is "more reliable" I'm referring to the fact that if your main reader goes down the little TR200 can easily pick up the slack if you're using side-mounted tags. Also, mat antennas are so expensive that I can see many people buying just one and having a single read point right on the finish line instead of spending a lot less and having multiple read zones throughout the finish line.
By "less expensive" I'm referring to not only the initial cost, but the long term cost of reusable tags is obviously lower. For the cost of a single 4-6 wide mat antenna you can max out a F9500 8-port reader with eight panel antennas that cover a width of 20+ feet each.
"easier to transport" - It would be hard for me to believe that the extra equipment required for the truss or for the mat antenna is not at least somewhat more bulky (harder to transport) than the small tripods and panel antennas. The core of what you need can easily fit in a small plastic tub (
see here).
Finally, I need to clarify that I'm referring to standard UHF RFID mats in this post. If you read the last sentence of
this post you'll see that those using Ipico hardware can probably get away with using only mat antennas because their mats are uniquely designed to do a better job of read shoe tags. I can't personally verify that, but when I look at how Ipico works and how their tags are positioned I'd imagine their hardware would work pretty well too - but of course I'm sure the cost for their is much much higher than my system.