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PJM RFID is the answer for situations where large volumes of tagged items need to be quickly and accurately identified. Especially designed for dynamic situations where items are stacked or stored in any orientation.
It is the only RFID technology that allows users to be confident in getting the correct results 100% of the time.
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Answering the need for a new form of RFID technology, Magellan Technology invented the PJM protocol in 1997. Magellan Technology’s range of products is the only RFID technology which uses Phase Jitter Modulation (PJM) as the transmission method between the reader and the tags. This achieves the highest data rate, of 424 kbit/s, compared to all other AM (Amplitude Modulation) based RFID technologies.
The PJM protocol offers 8 high speed independent reply channels with a data rate of 106kbit/s on each channel.
The powerful protocol and command structure allows PJM based RFID systems to be at least 10 times faster and more robust than all other RFID systems.
Since 2004 Magellan's patented PJM technology has become the internationally recognised standard ISO/IEC 18000 Part 3 Mode 2. All Magellan products have been designed and built based on our PJM technology.
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Features of PJM RFID
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100% Accuracy
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Close Stacking
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Orientation insensitive
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Magellan’s PJM StackTag® inlets are specifically designed so that they are able to be identified, read and written to when stacked closely together.
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Magellan has developed a range of tunnel and desktop readers which power tags in three dimensions, enabling them to be read in any orientation.
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High speed data rates
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Robust
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The unique reply system implemented in PJM products enables tags to be read virtually immediately. PJM tags have a command data rate of 424 kbits per second and a maximum effective reply data rate of 848 kbits per second.
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PJM tags have the ability to frequency hop and reply on any one of 8 discrete channels. With 8 discrete channels where one channel is blocked, for whatever reason, there are seven other channels a tag can use to reply.
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Anti-collision
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Large memory capacity
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PJM tags use a unique anti-collision method when talking to readers that is at least 10 times faster than all other anti-collision methods and suffers no loss of reader performance with up to 32,000 tags simultaneously being read.
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PJM tags provide either 1Kbit or 8Kbit of user memory. This is unique as only Magellan’s very high data rates can reliably use large memory in a fast moving and dynamic environment.
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