NOTE:
NOTE:
6.8 Antenna Basics
6.8.1 Antenna Basics
By definition, an antenna is a device used to transform an RF signal, traveling
on a conductor, into an electromagnetic wave in free space. Antennas
demonstrate a property known as reciprocity, this means that an antenna will
always maintain the same characteristics regardless if it is used to transmit
or receive. Most antennas are resonant devices, which means they operate
efficiently over a relatively very narrow frequency band. An antenna must be
tuned to the same frequency band of the radio system to which it is connected,
otherwise the reception and the transmission will be impaired. The antennas
in your wireless thermocouple connector system have been tuned to operate
in the 2.4 GHz band.
In some cases, a short RF cable may be used to connect an antenna to your
device. Please note that RF extension cables will always add some loss to the
transmitting signal strength. The longer the cable the more signal will be lost
over that cable. Because of this the length of the cable should be kept as short as
possible.
6.9 Antenna Placement
Proper antenna installation is important and will allow you to achieve
maximum performance and range between your connector/transmitter and
receiver unit.
Your connector/transmitter should not be installed on the same side of the wall as
the receiver. If mounted close to each other on the same wall, the radio waves are
likely to be subject to interfering dispersions or reflections. The best positioning is
to have the connector/transmitter installed on the opposite or connecting wall to
the receiver.
6.9.1 Horizontal Antenna Placement
Figure 6-7. Horizontal Antenna Placement
If your Connector/Transmitter is mounted in a horizontal position in your
application you should mount your receiving so that the same polarization is
achieved with the receiving antenna. As shown in the “Horizontal” example
above.
®
ANTENNA
USB
I/O
9–24 Vdc
OMEGA ENGINEERING, INC.
Stamford, CT 06907
UWTC SERIES
WIRELESS RF RECEIVER
2.4 GHz
omega.com
Made in U.S.A.
-
+
!
TX
UNIVERSAL WIRELESS THERMOCOUPLE CONNECT
OR
LO
W BA
TT
PRES
S
SETU
P
PRES
S
ON/OFF
UWTC
TX
RX
SB
PWR
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
1) This device may not cause harmful interference;
2) This device must accept any interference received,
including interference that may cause
undesired operation.
FCC ID: OUR–XBEEPRO
IC #4214A–XBEEPRO
F
®
6-7
System Operation
6
