User's Manual

TRM-300 / Integration guide
F070033PT_5.1_en
Page 18 of 26
en
10 RF AND ANTENNA INTEGRATION
10.1 TETRA ANTENNA
The TRM-300 TETRA antenna connector is a female SMA jack. The application mating connector should be
a male SMA plug. In order to install it, consult document D288W21NX_SP04.
The following table defines the required radiofrequency conditions:
The antenna RF impedance is specified on the same frequency band as TRM-300.
PowerTrunk recommends its TETRA Antenna accessory.
Parameter
Specification limit
TETRA Antenna
RF impedance
VSWR < 2 :1 50ohm
TETRA Antenna
RF power
3W for 380-430MHz & 410-470MHz
1.8W for 806-870MHz
Digital input
Ground
(GND)
Switch on/off
input
Digital output
Fuse