Anrtisu Cell Master MT8212B, Руководство пользователя, Страница: 100 / 294

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CDP
— When CDP is selected, the display shows Code Domain Power as 64
or 128 bit reversed Walsh codes in graphical format. Pilot power, Channel
Power, Frequency Error, Rho, Noise Floor will be displayed and three strong
pilots will be displayed in OTA measurement.
q
Text Only
— Displays Pilot Power, Channel Power, Ec/Io, Rho, Tau, Fre-
quency Error and Carrier Feed Through in a text format.
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Over The Air Meas
— Select either Pilot Scan or Mutlitpath display.
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Pilot Scan
— Displays the six strongest pilots with Tau and Ec/Io
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Multipath
— Displays the two strongest multipaths with Ec/Io related to
the strongest pilot.
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RF Meas
— Displays Channel Power (RMS), Frequency Error, the Measured
Occupied Bandwidth, Channel Power, Frequency Error, and the Noise Floor.
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Setup
— The Setup menu is used to determine the settings for the CDMA
measurement.
q
PN Search
— To determine PN Numbers and timing errors, the Cell Mas-
ter needs a timing reference. The timing can come from the base station
when the Cell Master is connected to the base station or it can be recov-
ered from GPS when a GPS antenna is connected to the Cell Master.
q
GPS Auto
— The Cell Master uses GPS as the timing reference, and
automatically detects the strongest pilot. The GPS antenna must be
connected to the Cell Master GPS antenna connector. GPS must be
turned on under Sys|GPS|GPS On/Off and the GPS must be locked to
the satellites before GPS Auto can be used.
q
GPS Manual
— The Cell Master uses GPS as the timing reference,
but it searches only for the specified PN. The GPS antenna must be
connected to the Cell Master GPS antenna. GPS must be turned on un-
der Sys|GPS|GPS On/Off and the GPS must be locked to the satellites
before GPS Manual can be used.
q
External Auto
— The Cell Master uses an external even second time
mark as the timing reference. The time mark is usually available at the
base station on a BNC connector labeled as "ESTM" or "PP2S." The
ESTM must be connected to the
CDMA Timing Input
connector on the
Cell Master. The Cell Master will automatically detect the strongest
pilot.
q
External Manual
— The Cell Master uses an external even second
time mark as the timing reference. This is usually available at the base
station on a BNC connector labeled as "ESTM" or "PP2S". This
ESTM must be connected to the "CDMA Timing Input" on the Cell
Master. The Cell Master will search only for the specified PN.
q
No Trigger
— If both GPS and external timing are unavailable, you
may choose No Trigger for the PN search.
q
Back
— Returns to the previous menu.
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Walsh Codes
— The user may select 64 or 128 Walsh codes for display. A
cdmaOne transmitter displays 64 walsh codes and CDMA2000 1xRTT
transmits 128 walsh codes. In 128 Walsh codes mode the Cell Master dis-
plays code domain power in bit reversed order. This is useful with
CDMA2000 signals, where a single user may use several codes (supple-
mental channels) which appear adjacent in the bit reversed order, but not
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Chapter 2 Functions and Operations