VEMCO - VR2W Manual
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6
Additional Information
6.1
Flash Memory
The VR2W receiver uses a non-volatile Flash Memory (memory that can retain stored information even when
not powered) to store valid detections of coded transmitters and the date/time at which the detection was
recorded. The VR2W will not continue to record received data once the memory is full.
A VR2W receiver contains either 8 MB or 16 MB of
memory depending on when it was manufactured. To
know the memory capacity of your receiver,
communicate with the receiver and check the
“Memory Size” value in the receiver information.
6.1.1
Time required to fill memory
A VR2W receiver with 8MB of memory is capable of storing more than 0.8 million valid detections while the
16 MB model can store more than 1.6 million detections. How long it takes to fill the memory depends on
how frequently the data is received. For example, if a valid detection is received every 20 seconds then it will
require approximately 365 days to fill the 16 MB VR2W memory. It will take less time if the detections are
received more frequently, as illustrated in the table below.
Time required to fill VR2W memory based on various detection time.
Valid detection every…
Time to fill 8 MB memory
Time to fill 16 MB memory
10 Sec
3 months
6 months
20 Sec
6 months
12 months*
30 Sec
9 months*
18 months**
40 Sec
12 months*
24 months**
50 Sec
15 months*
30 months**
60 Sec
18 months**
36 months**
*
Exceeds battery life of the VR2W-180kHz receiver
**
Exceeds battery life of both the VR2W-69kHz and the VR2W-180kHz receivers
