User's Manual

30 MDS TransNET I/O Guide MDS 05-2708A01, Rev. A
Changes to the HOPTIME setting may only be made at the master radio. (This
is because the master radio establishes the hop time setting for the entire
network.) At remote radios, the hop time setting may be read when the radio is
in synchronization with the master, but it may not be changed.
MODE [M, R, R-M]
The MODE command sets or displays the operating mode of the radio. A master
radio is designated by an M; a remote is designated by an R.
R-M indicates that the transceiver has been programmed to the special
remote-master mode (remote radio operating on master frequencies) This is
used in repeater-assisted peer-to-peer systems; see Section 2.2, Typical
Applications (beginning on page 2) for details. The R-M mode denotes a remote
radio operating on master frequencies. In all other respects, a remote-master
behaves the same as a normal remote.
All units default to remotes; other modes must be specifically programmed
with the
MODE command.
OPTION!
Table and information pending.
OWM [xxxxx]
The OWM command sets or displays an optional owner’s message, such as the
system name. The entry can contain up to 30 characters.
OWN [xxxxx]
The OWN command sets or displays an optional owner’s name, such as the site
name. The entry can contain up to 30 characters.
PWR [xx–30]
This command displays or sets the desired RF forward output power setting of
the radio. The PWR command parameter is specified in dBm and can range
from 20 dBm (MDS TransNET 900™ transceiver) through 30 in 1 dBm steps.
The default setting is 30 dBm (1 watt). To read the actual (measured) power
output of the radio, use the SHOW PWR command.
In the USA, maximum allowable power is governed by FCC limits on
Effective Isotropic Radiated Power output (EIRP). The EIRP limit of +36 dBm
means that any user with a net antenna gain greater than 6 dBi must decrease
the
PWR setting accordingly. Section 4.5, How Much Output Power Can be
Used? (beginning on page 12) contains a detailed discussion of this topic.
RSSI
This command displays the radio’s Received Signal Strength Indication in
dBm (decibels relative to 1 mW). The output can range from –50 dBm to –110
dBm. Command availability and results depend on the mode of operation
(master or remote). The closer to 0 dBm, the stronger the signal, thus a reading
of –70 dBm is stronger than –80 dBm.