CTP Systems CTPhone 1900, Applications Manual

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DOC00101-01 5-15
Diagnostics and Troubleshooting
Reading the BER Values
During a BER test, the handset checks the number of bit errors received
by the handset (HS) and base station (BS), and reports results as shown
in Figure 5-2. The possible BER results reported for the handset and base
station are Max, Good, Poor and Bad.
Figure 5-2. Handset Display During Bit Error Rate Testing
Handset Operation/Functions Under Password Protection
Table 5-F lists functions in the handset that are accessed by password.
Note that some functions are for use by CTP Systems only.
Table 5-E. Explanation of Possible BER Test Results
BER Result What it Indicates
Max or Good Values required for clear conversation.
Poor The boundaries of a cell. Call setup is not advis-
able, although calls in progress may survive.
Bad An area not sufficiently covered to support call traf-
fic. Relocate other base stations or put up another
base station.
Mismatched values
(e.g. Good/Bad) Faulty equipment or interference close to the hand-
set or base station.
Table 5-F. Handset Password Protected Functions
Function What it Does
Bulker DU CTP Systems use only.
Unique BS Locks the handset onto a base station with a particular
ID. 0 means normal operation.
Software version Displays handset’s software version.
Beep on roam Causes an idle handset to beep when the base station
it is locked onto changes.
Handoff by recall Allows the RCL key to initiate handoff to another base
station in the system while a call is in progress.
HS
B S 0 2
11:57
M a x
G o o d
Handset receive
Base station receive
ID of base station
involved in test