Repeat Mode

In this mode, the Loop Box activates the transponder, receives its data and sends (repeats) it to a primary system.

This is an easy way to connect several timing points within an area, e.g. a triathlon finish, transition in and transition out. The maximum distance between repeating / receiving devices can be up to 900m depending on conditions.

Note that the Loop Box has an internal buffer for 1000 detections. Even if the connection between Loop Box and the main loop is interrupted, the detections will not be lost: once the connection is recovered, the Loop Box will transmit the buffered detections. Thanks to the precise internal clock of the Loop Box, the detection time will still be correct and precise.

For the communication between devices when using Repeat Mode please note:

• Loop Box and the main loop need to run on the same channel (see Channel ID Setup). It is recommended that you select a fixed channel on the main decoder instead of using the auto mode.
• The main loop that will receive the detections from the Loop Box(es) must have Loop ID 1. This way the Loop Boxes know where to send the data even if several systems are present.

Impulse Mode

The Impulse Mode is the same as Repeat Mode, but the audio output will be used as impulse input that creates a fake detection.

Store & Forward (FW2.6 and above)

This mode only works with the ActivePro and MotorKart transponders, V2 transponders may additionally return less accurate times. 

In this mode, when the transponder is activated by the Loop Box, it will create a stored passing on the transponder and additionally send the passing to the device.

For each stored passing an internal timer on the transponder is started which can then later be converted in to a time, the stored passing maintains the loop information of the device which activated the transponder. The internal clock for each stored passing runs for a maximum of 24 hours (passings will be deleted afterwards) and a maximum of 64 passings can be saved.

When the transponder is activated by another active system which is not in Store & Forward or Store mode then the transponder will transmit not only the new passing but also all stored passings. 

For the forwarded passing to be received you will need to follow the same guidelines for comunication as per Repeat mode. 

For example for a MTB downhill race, a Loop Box at the start and split could create stored passings on the transponder, and at the finish three detections will be received (start, split and finish).

Should the start or split Loop Boxes be in range of the inish, then these will be received immediately. If, however, the connection drops out during the race, passings will still be stored on the transponder and will then be received at the finish. 

When using Store & Forward mode, if you receive both the forwarded passing and the stored passing then the Active system may not store two records in the passings file. For every incoming passing the system checks within the most recent 1,000 passings if it received another passing with the same Wake Up Count. If so, then the later one will be ignored as it is considered a duplicate. 

Additionally note that the forwarded passing may have lower accuracy than the stored passing or regular Repeat mode, as the internal calculation and communication prioritises the stored passing. 

Store Mode (FW2.5 and below)

Similar to Store & Forward mode, transponders will create a stored passing which can be read out at a later time. 

With Store mode on Firmware 2.5 or earlier the passing is not additionally forwarded to the device, only the stored passing is generated. 

Loop Box Time

Note that the Loop Box and the ActivePro/MotorKart transponder do have an internal clock, but do not need to have the current time of day. They simply tell the main loop how much time has elapsed since the detection occurred. The main loop will then calculate the detection time by subtracting this offset from its current time.