MotoTally LF RFID Transponders (Tags)
* Note: These transponders are considered "legacy" (still supported, but not recommended for new implementations).
If you already have a Low Frequency (LF) reader system and want to upgrade to superior software (MotoTally of course), there is no
reason you can't continue to use your existing RFID system and either of these transponders with MotoTally. However, the
newer UHF transponders are so much cheaper that you would be money ahead to invest in the UHF system and transponders, especially
if you are using the cigar style transponders.
Typical transponder to antenna read range for LF transponders is from 3' to 10' depending on the transponder / antenna combination
selected. It can be used for almost all types of events and with two different transponder options.
These transponders (sometimes called tags), are "passive", meaning they have no battery to charge or wear out, and they
are MUCH cheaper than their "active" transponder counterparts. They are powered completely by the electomagnetic field created
by the RFID antenna. When a transponder enters the field of the antenna, they are powered up with just enough juice to return
their identification to the antenna. The "battery-less" design means these transponders have an indefinite life span (I've
had and used the same transponder for 6 years). While not indestructable, they are very rugged and completely water-proof.
Some active transponders don't even allow you to put a new battery in them, so when the battery dies (after two or three
years), you throw the whole transponder away and buy another one. Other active transponders allow you to recharge or replace
the battery, but for the cost of just that battery, you could have bought 5-10 passive transponders!
To be fair, active transponder systems do have certain advantages over passive transponders. Generally, they are less picky
about mounting orientation, and some can be mounted on metal (a big no-no with passive transponders). Their read distance
is much greater, and multiple transponders can be read at once (they have to be able to do that since their read distance
is so much greater). This makes them an ideal choice for motocross, where the finish line is wide and you could have three
motorcycles crossing the line all nearly at the same time! But for the purposes of scoring hare scrambles and enduros, the
rider is crossing the finish line or check flags in a single file manner anyway, so the passive system works great for these
The transponders are programmable. Depending on what will work best in your situation, MotoTally can be set to either program
a unique, computer generated "Rider ID" to the transponder, or the rider's bike number. So during signup, actually on the
entry form in MotoTally, you will be able to place the rider's transponder over a small transponder programmer that is hooked
up to your computer, and program the tag for that rider with the click of a button. Easy!
- Rugged / Waterproof - Puts up with years of abuse
- Battery-less design means no batteries to wear out or keep charged
- Very inexpensive compared to "active" transponders