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HN-1010/1510
Set Alternative Frequency Band
When set to 1, limits the operating RF channel set to the 2448 to 2473MHz
frequency band for compliance with French regulatory standards. When set to 2, sets
appropriate operation for Spain. When set to 3, sets appropriate operation for Japan.
This setting should be set to 0, for FCC-compliant operation in the US (this is the
default). For Canadian operation, set this parameter to 4.
Set Hop Duration
Sets the length of time the transceiver spends on each frequency channel. A smaller
value will allow the remote to lock on to the base signal faster at system startup, and
will generally decrease packet latency. A larger value increases network capacity,
due to decreased overhead in channel switching. The hop duration is specified in
69.4μs increments. The default value of 90H corresponds to a duration of 10ms. The
maximum value of FEH is 17.627ms. For best results, do not specify a duration of
less than 3 ms. This value only needs to be set in the base which broadcasts the
parameter to all remotes. However, link time can be reduced if this value is also
programmed into the remotes, which use it as a starting value when scanning for the
base.
Set Minimum Data Length
This sets the minimum threshold number of bytes required to form a packet in
transparent mode. The radio will wait until the data transmit delay elapses before
sending a data packet with less than this number of bytes. This can be used to keep
short, intermittent transmissions contiguous. In packet modes, the length parameter in
the data packet will override this value (See Section 3.1). This value is subject to the
maximum data length even in packet mode. See Get Maximum Data Length below.
Get Maximum Data Length (read only)
This parameter indicates the largest number of bytes that a remote will transmit per
hop, based on the size of the slot it has been allocated by the base. In general more
remotes mean less data can be transmitted per remote. By reading this parameter and
dividing by the hop duration, the remote's data rate capacity can be determined.
Attempting to send protocol mode packets longer than maximum data length will
result in the packet being discarded without being sent. See Section 2.3.3 on the
tradeoffs between hop duration and data length.
Set Maximum Number of Remotes (base only)
This parameter limits the number of remotes that can register with a given base. The
default is 62 remotes which is the maximum number of remotes that can be registered
with a base at one time. This command is useful when used in conjunction with
global roaming for load balancing when base stations are collocated. It is also useful
to assure a minimum remote throughput.
? 2000- 2004 Cirronet ? Inc
44
M-2410-0010 Rev A
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