Making The Transmitter Receive (Rx) Band Spurious Measurement; Purpose; Measurement Method - Agilent Technologies E4404B Operation Manual

Making GSM Air Interface Measurements

Making The Transmitter Receive (Rx) Band Spurious Measurement

Making The Transmitter Receive (Rx) Band
Spurious Measurement

Purpose

The receive band spurious measurement checks a transmitter's receive
band for conformance to the ETSI specification:
Table 4-1 ETSI Specification: Maximum Permissible Measured
Power (dB)
GSM
450
MS -67.0
BTS –98.0
BTS M1 -91.0
BTS M2 –86.0
BTS M3 -70.0
PBTS M1 –70.0
For MS mode, the limits for E-GSM900 and R-GSM900 apply only to
NOTE
the part of the limit that does not overlap with other bands. The
P-GSM900 limit takes priority for the upper portion followed by
E-GSM900 and then R-GSM900, if appropriate. This means that up to
three limits may be in force at once in MS mode.

Measurement Method

The measurement sweeps in the receive band of the current device and
checks the trace for any spurs which exceed the maximum permissible
transmitter power (shown above in
4-10
GSM GSM P-GSM
480 850
-67.0 -79.0 –79.0
–98.0 –98.0 –98.0
-91.0 -91.0 –91.0
–86.0 –86.0 –86.0
-70.0 -70.0 –81.0
–70.0 –70.0 –70.0
E-GSM R-GSM
900 900 900
–67.0 –60.0
–98.0 –89.0
–91.0 –91.0
–86.0 –86.0
–81.0 –81.0
–70.0 –70.0
Table 4-1).
DCS PCS
1800 1900
–71.0 –71.0
–98.0 –98.0
–96.0 –96.0
–91.0 –91.0
–86.0 –86.0
–80.0 –80.0
Chapter 4