User's Manual

1
8
Antennas
domo transmitters are supplied as standard without antennas. An
antenna must be connected for normal operation. The transmitter unit is
supplied with a panel mounted SMA connector which carries the RF
output. The antenna should be connected by screwing it onto the SMA,
but care should be taken to not over tighten the connector.
The transmitter has the following RF output characteristics.
RF Spec Model
Number
ending -
034047
Model
Number
ending -
057067
Model
Number
ending -
115140
Model
Number
ending -
228255
Model
Number
ending -
138139
Model
Number
ending -
240248
Output
Frequency
340 to
470MHz
575 to
675MHz
1.15 to
1.40GHz
2.28 to
2.55GHz
1.389 to 1.399
GHz
2.400 to 2.483
GHz
Output
Bandwidth
2.5MHz 2.5MHz 2.5MHz 2.5MHz 2.5MHz 2.5MHz
Output
Power
100mW
(nominal)
100mW
(nominal)
100mW
(nominal)
100mW
(nominal)
100mW
(nominal)
10mW
(nominal)
Output
Impedance
50 ohm 50 ohm 50 ohm 50 ohm 50 ohm 50 ohm
RF Spec Model
Number
ending -
310340
Model
Number
ending -
488515
Model
Number
ending -
560590
Output
Frequency
3.1 to
3.4GHz
4.88 to
5.15GHz
5.6 to 5.9GHz
Output
Bandwidth
2.5MHz 2.5MHz 2.5MHz
Output
Power
100mW
(nominal)
100mW
(nominal)
100mW
(nominal)
Output
Impedance
50 ohm 50 ohm 50 ohm
Note. It is recommended that the antennas be connected directly to the transmitter unit.
The use of RF cables at this point will degrade the performance of the system.
The optimum choice of antenna will vary according to application. The
following table gives some suggestions for suitable transmit antennas
with the associated domo part number.