Tektronix WCA200A, User Manual

Page: 196 / 454

Modulation Analysis (Demod Mode)
3- 70
WCA230A & WCA280A User Manual
Table 3- 9: Standard settings (Cont.)
Standard type Bit rate / Tari
1
Decoding format Modulation type Link
14443-2-B Interrogator to Tag ASK NRZ 105.9375 kbps
Tag to Interrogator Subcarrier BPSK NRZ-L (8 periods) 105.9375 kbps
NRZ-L (4 periods) 211.875 kbps
NRZ-L (2 periods) 423.75 kbps
F-13.56MHz -- ASK Manchester / NRZ 212 kbps
C0G1 Interrogator to Tag ASK PWM 40 kbps
Tag to Interrogator FSK NRZ
C1G1 Interrogator to Tag ASK PWM 70.18 kbps
Tag to Interrogator Bit Cell 140.35 kbps
Manual -- ASK
DSB-ASK
SSB-ASK
PR-ASK
OOK
Manchester
Miller
Miller (M_2 / M_4 / M_8)
Modified Miller
FM0
NRZ
40 kbps
PIE (Type A) 20
µ
s (Tari)
PIE (Type C)
6.25 µ
s (Tari)
[Abbrev.] DSB: Double sideband; SSB: Single sideband; PR: Phase reversal; OOK: On/Off key;
PIE: Pulse interval encoding; PWM: Pulse Width Modulation
1
Default values are shown. It can be set from 1 bps to 51.2 Mbps (bit rate) or from 1 ns to 1 s (Tari).
NOTE . The standard types of C0G1 and C1G1 disable the constellation
measurement.
Tari is the reference time interval for a data-0 in Interrogator-to-Tag signaling,
defined in ISO/IEC 18000-6 Part A specification (an abbreviation for Type A
Reference Interval).
The period of the NRZ-L decoding format (2, 4, and 8 periods) indicate the
number of subcarrier cycles per symbol.
NOTE
. This instrument does not support one-period NRZ-L.
The M values (M_2, 4, and 8) of the Miller decoding format indicate the number
of subcarrier cycles per symbol. Refer to the ISO/IEC and EPCglobal documents
listed in Compatible Standards on page 3--61 for details on the encoding/decod-
ing formats except the modified Miller code illustrated in Figure 3--55.