ERG Transit Systems MCR200 User Manual
Device Product Group
Security Level 3
MCR200 User Manual
DPG-00144
ERG Confidential © ERG 2004
Page 17 of 17
Revision 7 / 5 July 2004
7 Antenna
Tuning
The MCR200 is tuned at the factory for maximum operating range. It may be necessary to
retune the MCR200 when it is mounted into a host device to compensate for the effects of
the mounting environment (such as metallic parts or metallic paint near the antenna) and to
ensure optimum performance. For this function, use an active smart card that is initialised
for use with the particular host application.
retune the MCR200 when it is mounted into a host device to compensate for the effects of
the mounting environment (such as metallic parts or metallic paint near the antenna) and to
ensure optimum performance. For this function, use an active smart card that is initialised
for use with the particular host application.
1)
With the MCR200 mounted in its operational environment place the test smart card
onto the card reading surface of the terminal. Use a non-metallic spacer with the
depth of the desired operating range. For example, if the desired operating range is
50 mm, then place a 50 mm spacer. Ensure that the host and MCR200 are powered.
onto the card reading surface of the terminal. Use a non-metallic spacer with the
depth of the desired operating range. For example, if the desired operating range is
50 mm, then place a 50 mm spacer. Ensure that the host and MCR200 are powered.
2)
Verify operational range by running the host internal diagnostic routines. Via the
tuning hole in the shield, adjust the tuning by rotating CV1 using a plastic tuning tool to
maximise the operating distance.
tuning hole in the shield, adjust the tuning by rotating CV1 using a plastic tuning tool to
maximise the operating distance.
Figure 10: Location of tuning capacitor CV1