Site Survey Using The Kx-Td7685/Kx-Td7695/Kx-Td7696 - Panasonic KX-NCP0158 Quick Installation Manual

5 Site Survey Using the KX-TD7685/KX-TD7695/KX-TD7696

5 Site Survey Using the KX-TD7685/
KX-TD7695/KX-TD7696
The PS has a Radio Signal Test mode that monitors the state of the radio link to the CS for site survey. In
Radio Signal Test mode, the frame loss and signal strength of a synchronous slot, and the signal strength of
the other slots can be measured when the PS is monitoring the CS. After installing the CSs temporarily as
planned during site planning, set the PS to Radio Signal Test mode and locate each CS to measure its coverage
area. Then, record the results on the map of the installation site.
Notice
An incorrectly performed site survey may cause the CS to reset due to synchronization failure.
Therefore, it is necessary to conduct the site survey and plan the location of CSs with extreme care.
Especially, when using multiple CSs in the same area, conduct the site survey starting with the highest
hierarchy level in the air synchronization tree (Master CS1 ® Master CS2 ® hierarchy level order of Slave
CSs).
Testing the Radio Signal Strength
After locating the CS(s) temporarily, execute the Radio Signal Test using the PS. Directly after entering Radio
Signal Test mode, the PS scans channel 0 for a CS that it can connect to. The channel to be scanned can be
changed by pressing the appropriate keys 0 through 4.
1.
Enter Radio Signal Test mode.
Using the KX-TD7685/KX-TD7695/KX-TD7696
Press 1, 9, and POWER
for more than 2 seconds.
Display example:
RADIO STRENGTH
<<< MEASURING >>>
*1 Channel number
*2 Slot number
*3
When a slot is synchronized, "SYNC" is displayed.
*4 Radio signal strength level (12 to 00)
*5 Frame error (0000 to 9999)/Frame counter (0000 to 9999). Frame error indicates the number of errors out of 10 000 radio signal
receptions. An increased number of frame errors indicates greater radio signal interference and more frequent noise during
conversation. The ideal number of frame errors is "0000".
Error rate (%) = Frame error (0000 to 9999) / Frame counter (0000 to 9999) ´ 100
*6
Note
•
Storing the scan data will clear all phonebook data.
•
The PS will not operate in normal mode if scan data is saved on it. For details on clearing scan
data, refer to "Clearing the Stored Scan Data".
2.
Measure the error rate and the radio signal strength by moving towards and away from the CS.
Note
•
When the error rate is 3% or more, measure the error rate at the same location at least 5 times.
You must disconnect the CS and then reconnect it to take each measurement. If the error rate is
36 Quick Installation Guide
To survey other slots
/
Previous or Next
To store the scan data
RADIO STRENGTH
CH0 SLOT:06 SYNC
* * *
1 2 3
L:12 0000/0100
* * *
4 5 6
CS-ID:9005301234
To survey specific channel
Channel No.
0 to 4
Log No.
0 to 9
Document Version 2009-12