User's Manual

MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide 49
ZONE DATA
The transceiver divides its frequency operating spectrum into eight con-
tiguous 3.2 MHz zones. (These are the same zones referenced by the
SKIP command described earlier.) Data frame statistics are maintained
for each zone to indicate the transmission quality through the network.
This information is useful for identifying zones where significant inter-
ference exists.
Zone quality information can be accessed using the
ZONE DATA com-
mand on a connected HHT. For each zone (1–8), it shows you the
number of data frames sent, the number received, and the number
received with errors. If an excessive number of errors are seen in one or
more frequency zones, it may indicate interference, and you should con-
sider “skipping” those zones using the
SKIP command.
The
ZONE DATA command displays its information on four lines as shown
in Figure 25. If the display seems to “roll off” the screen, verify that
your HHT is set for an 80 character screen size. See Section 6.2,
Hand-Held Terminal Setup (beginning on Page 29).
Invisible place holder
Figure 25. HHT Display for ZONE DATA Command
If ZONE DATA alone is entered, the information for Zone 1 is displayed
first. Successive zones can be viewed by pressing the
ENTER key, or by
entering the zone number of your choice (1...8) at the
NEXT ZONE?>
prompt.
It is also possible to go directly to a specific zone by entering
ZONE DATA
[1...8]
, where the number entered equals the desired zone. Data for the
specified zone is displayed and then control returns to the command
prompt.
Entering
Q or QUIT causes the program to exit and return to the command
prompt.
TOTAL SENT
TOTAL RECEIVED
TOTAL REC'D WITH ERRORS
ZONE #
DATA FRAME STATISTICS