Section 2:
Configuration
Revision 1.0a
23
© 2006 Intuicom, Inc.
table. The individual measurement values at each frequency hop channel are shown in
the frequency table. The frequency table is accessed by pressing the ENTER key on the
computer when the radio statistics menu is displayed.
Average noise levels will typically fall in the range of 15 to 30. Average noise levels
significantly higher than this are an indication of a high level of interference that may
degrade the performance of the link. High noise levels can often be improved with
bandpass filters, antenna placement or antenna polarization. Please contact Intuicom for
more information.
Average Signal Level
The average signal level indicates the level of received signal at this modem and at each
of the modems used as repeaters in the link. For each of these, the signal source is the
modem that transmits to it. The number is an average of the received signal levels
measured at each frequency in the modem's frequency hop table. The individual
measurement values at each frequency hop channel are shown in the frequency table.
The frequency table is accessed by pressing the ENTER key on the computer when the
radio statistics menu is displayed.
For a reliable link, the average signal level should be at least 15 higher than the average
noise level reading.
Low Average Signal Levels can often be corrected with higher gain antennas, antenna
placement, and use of repeaters or use of antenna amplifiers. Contact Intuicom for more
information.
Overall Rcv Rate (%)
The Overall Rcv Rate measures the percentage of data packets that were successfully
transmitted from the master to the slave on the first attempt without requiring
retransmission. A number of 75 or higher indicates a robust link that will provide very
good performance even at high data transmission rates. A number of 25 or lower
indicates a weak or marginal link that will provide lower data throughput. An Overall
Rcv Rate of 100% will provide approximately 100 Kbaud of bandwidth with an RF data
rate of 3 (Radio Transmission Parameters Menu) and approximately 150 Kbaud of
bandwidth with an RF Data Rate of 2. These numbers are reduced approximately 50% if
there are one or more repeaters in the network.
Number of Disconnects
If, during the course of performing a link test, the link between the master and the slave is
broken, and the radios lose carrier detect, the occurrence is recorded in the Number of
Disconnects value. The value indicates the total number of disconnects that have