NTAG26 XMFR card Page 411 of 544
Option 11C and 11C Mini Technical Reference Guide
XMFR receiver specifications
Table 131 provides the operating requirements for the NTAG26 circuit card.
Table 131
XMFR receiver specifications (Part 1 of 3)
Coding: Mu-Law
Input sensitivity: must accept: 0 to -25 dBmO
must reject: -35 to dBmO
Frequency sensitivity: must accept: f +/- (1.5% + 5Hz)
Amplitude Twist: must accept: difference of 6dB between frequencies
Signal Duration: must accept: > 30 ms
must reject: < 10 ms
KP Signal Duration: must accept: > 55 ms
may accept: > 30 ms
must reject: < 10 ms
Signal Interruption Bridge: must ignore: < 10 ms
Time Shift between 2 frequencies:
(Envelop for start/stop)
must accept: < 4 ms