User's Manual

Menus and Parameters
2-97
BreezeACCESS Version 4.3 System Manual
Hopping Parameters (GU)
The Hopping Parameters Menu allows configuration of the hopping
mechanism. The GPS modules deliver signals to the Access Units that
insure that their hopping patterns are fully synchronized. This includes
synchronizing the time each unit starts a new hop and ensuring that
units start the hopping sequence simultaneously.
 Number of Hopping Frequencies – Configures the Number of
Hopping Frequencies parameter to guarantee that all the Access
Units managed by the GPS module will start their hopping sequence
simultaneously.
To determine the correct number of hopping frequencies, access the
monitor program in one of the AU units, select Show Basic
Configuration in the Info Screens menu and view the Number of
Hopping Frequencies value displayed.
You can also determine the Number of Hopping Frequencies using
Table ý3-18:
Table 2-22: Number of Hopping Frequencies
 Dwell Time – Applicable only when the ACSE Option is disabled.
When the ACSE Option is enabled this parameter is not applicable
and the dwell time is the ACSE Dwell Time, set to a fixed value of
60 milliseconds (
see page 2-72
).
 ACSE Option –
see page 2-51
 GPS Antenna Recovery - Under normal operating conditions, the
BS-GU module uses the time signals it receives from the GPS
Hopping Standard
Number of Hopping Frequencies
(hopping sequence length)
Australia 60
Canada 30
Europe ETSI 79
France 35
Israel 35
Korea 23
Japan 23
Netherlands 15
Spain 27
US FCC 79
Mexico 30
Rest of America 79
NOTE:
The values of the ACSE Option and Dwell Time (if the ACSE Option is disabled)
parameters must be the same for all GPS modules and Access Units in the system to
enable synchronized hopping.