User's Manual

Appendix B. Basic Parameters
Base Station Equipment Installation Manual 42 BreezeACCESS Series
⇒
Channel Spacing Guard Band
1MHz 1MHz
1.75MHz 0.75MHz
2MHz 1MHz
The available selections in products that support all the options are 1,
1.75 and 2MHz. In some products only a subset of these options may be
available. The default is 2MHz.
Note:
Changing the value of the Channel Spacing will erase the current
list of defined Sub-bands/frequencies
⇒
Define Sub-bands
– Allows defining a new list of sub-bands and/or
discrete frequencies. Enter a list of the required sub-bands and/or
frequencies, using either sub-bands (f1-f2) or discrete frequencies, e.g.
3410-3418,3425,3430-3434. The frequencies (either the start and stop
frequencies of a sub-band or discrete frequencies) can be in the following
formats:
∗ MHz Resolution, e.g. 3420
∗ kHz resolution, e.g. 3430.250, 3445.500, 3412.000 (you must enter 3
digits after the dot)
When using a Channel Spacing of 1 or 2 MHz, the entries should be on a
1MHz grid (e.g. 3410, 3413).
When using Channel Spacing of 1.75MHz, the usable frequencies are on
a grid of 0.250MHz, the first one being at a distance of 0.750MHz from
the beginning of the radio band. Therefore, for products using the 3.5a
band, the usable frequencies (uplink) are 3410.750, 3411.000,
3411.250……
This is also the list of valid entries for discrete frequencies. When
defining sub-bands, the entries must be on a grid of 0.250MHz that starts
at the beginning of the radio band. Therefore, for products using the 3.5a
band, the list of valid entries for defining discrete frequencies as well as
sub-bands’ start and end frequencies, is 3410, 3410.250, 3410.500…….