© Microhard Systems Inc.
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6.0 Configuration
Values
&Fn
Load Factory Default Configuration
See Section 5.0 for detailed information on the various factory default options.
Slow Mode is an option
for the Nano.
If the module being
configured
does
not
support Slow Mode, do
not load a Slow Mode
factory
default
configuration.
1 PMP Master
2 PMP Slave
3 PMP Repeater
4 Slow Mode PMP
Master
5 Slow Mode PMP
Slave
6 PTP Master
7 PTP Slave
8 Slow Mode PTP
Master
9 Slow Mode PTP
Slave
&H0
Frequency Restriction
By default, the Nano will hop on frequencies across the entire 900MHz and 2.4GHz
ISM bands. For some applications or within certain operating environments, it may
be desired to prohibit the modem from operating on specific frequencies or range(s)
of frequencies. The modem will not allow ‘too many’ frequencies to be restricted; it
requires a certain amount of bandwidth within which to operate to comply with
regulations.
Following is an example of entering Frequency Restrictions on a Nano modem. First,
the AT&H0 command is invoked:
The modem responds with a prompt for the Unit Address.
(Enter the Unit Address for the Master (1) and all Repeaters in the network into each
modem in the network.)
All modems in
the
network must have the
same frequency
restriction
configured
within them.
Use the ATg or ATG
feature to help identify
the frequency/range of
possible
interfering
signals within the 902-
928MHz ISM band, and
then use the AT&H0
feature to configure the
modem to avoid them.
Image 6-1: Frequency Restriction
