Figure 12-2. Network with a single router (in this case, LoggerNet)
as displayed in PakBus Graph
13. Transceiver location
Placement of the transceivers is likely to have a significant impact on its performance. The key to
the overall robustness of the radio link is the height of the antennas and the line-of-sight
between antennas. Additionally, longer cable lengths have higher losses. See
13) for more information.
Line-of-sight obstructions and RF interference will affect the transmission distance. See
and
for a discussion of antenna gain and
other factors affecting distance.
14. Power considerations
The RF451/RF452 radio requires 7 to 28 VDC power. This may be supplied through one of the
following:
l
a wall charger connected to the DC power jack on the side of the radio
l
the data logger via the CS I/O port
l
a field power cable connected to the data logger 12V and G and the DC power jack on the
side of the radio
RF451/RF452 Spread Spectrum Radio
21
