Radioddity DB25-D, Extended Manual

Page: 21 / 209

Radiod d ity Extended manual for Radiod d ity DB25-D & GD-88 v2.0
© Radiod d ity 2022 page 21 of 209
4. With the rotatable fixed point on the left and right sides of the Mounting
Bracket, it can tilt the main body at an appropriate angle.
5.2 Radioddity DB25-D Antenna connection
Before operation, you must first install a properly matched antenna for the
optimal transmit coverage. The radio will have best performance if the
appropriate antenna is properly installed. A low loss coaxial feeder line with
50 Ω
impedance is used to match the input impedance of the radio. If the transmission
impedance of the feeder line is less than
50 Ω the antenna connection will reduce
the effectiveness of the antenna system, and will cause interference to the nearby
radio and television receivers, radio receivers and other electronic devices, and
even damage the radio.
Notes: If transmitting without an antenna or other matched load line, it could
damage the Radiod d ity DB25-D. The antenna must be connected to the radio
before transmitting. All base stations should be equipped with lightning
arrester to reduce the risk of fire, electric shock, or radio damage.