HP 8920A User Manual page 251

NOTE: In order to ensure that the Test Set makes the correct decisions regarding the presence of the
mobile stations's RF carrier, the Test Set's RF power meter should be zeroed before using the
Call Processing Subsystem. Failure to zero the power meter can result in erroneous RF power
measurements. See
information on zeroing the RF Power meter manually.
CMAX
Detector
Input Att
Sat Tol
TX Pwr Zero
CAUTION: RF power must not be applied while zeroing. Set the RF GENERATOR screen's Amplitude
field to off to prevent internal cross-coupling into the power detector while zeroing.
"Conditioning the Test Set for Call Processing" on page 141
The field sets the number of access channels in the system. This will
CMAX
determine how many channels must be scanned by the mobile station when trying
to access the Test Set. The value of this field will affect the time required for the
mobile station to connect with the Test Set.
This field is used to select the type of detector used to measure the amplitude of
the audio signal being measured. Refer to the
for descriptions of the detectors available.
105
Input Att sets the amount of input attenuation for the RF IN/OUT and ANT IN
connectors. The Input Att field displays the present attenuation value, and it is
used to set the desired attenuation level.
This field is used to select the Sat tolerance. When set to Narrow the Sat limit is
one of the three valid Sat tones
at 0 to 7000 Hz. When operating in noisey environments the narrow Sat limit may
not allow for correct measurements and the ability to alter the limit to encompass
a wider range provides for testing flexibility.
The function establishes a 0.0000 W reference for measuring RF
TX Pwr Zero
power at the RF IN/OUT port.
information.
Chapter 6, Call Processing Subsystem
Detector field description, on page
±
10Hz. When set to Wide the Sat limit is defined
See "TX Pwr Zero" on page 480
CALL CONFIGURE Screen
for
for further
251