Performance Optimization; Antenna Aiming - GE TransNET 900 Reference Manual

• Remote radio(s) transmitting data (
Master station
Name Description
PWR • Continuous—Power is applied to the radio; no problems detected
• Flashing (5 times-per-second)—Fault indication
See
• Off—Radio is unpowered or in Sleep mode
See also,
Continuous—Radio is receiving/sending synchronization frames
SYNC
On within 10 seconds of power-up under normal conditions
Transmit data activity on the DB-9 DATA interface connector
TXD
Payload data to connected device
Receive data activity on the DB-9 DATA interface connector.
RXD
Payload data from the connected device

5.2 Performance Optimization

After the basic operation of the radio has been checked, you may wish to opti-
mize its performance using some of the suggestions given here. The effective-
ness of these techniques will vary with the design of your system and the
format of the data being sent.
Complete instructions for using the commands referenced in this manual are
provided in "RADIO PROGRAMMING" on Page

Antenna Aiming

For optimum performance, directional antennas must be accurately aimed in
the direction of desired transmission. The easiest way to do this is to point the
antenna in the approximate direction, then use the Remote radio's
command (Received Signal Strength Indicator) to further refine the heading
for maximum received signal strength.
In an MAS system, RSSI readings are only meaningful when initiated from a
Remote station. This is because the Master station typically receives signals
from several Remote sites, and the RSSI would be continually changing as the
Master receives from each Remote in turn. Adjust the antenna for the highest
(most positive) value to insure the greatest communication reliability.
20 MDS TransNET Ref. Manual
Table 6. LED indicator descriptions
PWR SYNC
"TROUBLESHOOTING" on Page 45
"LED [ON, OFF]" on Page 36
TXD
) and receiving data (
TXD RXD
22.
MDS 05-2708A01, Rev. F
RXD
) with
RSSI