Radioddity DB25-D - Rear Panel of DB25-D

Radioddity Extended manual for Radioddity DB25-D, DB40-D & GD-88 v3.0
© Radioddity 2023 page 42 of 252
5.5.3 Rear panel of DB25-D
No.
Part Name
Function description and applications
16
Antenna port
Install the external antenna to this port. In TX testing,
please install a dummy load to replace the antenna.
The antenna or dummy load should be with 50 Ω
impedance.
17
Heat Sink
Cool the internal power tube to avoid too high
temperature to damage the related components
18
GPS antenna
port
Install the GPS antenna to this port for GPS receiving.
19
Rack mounting
screws
Loosen the left and right screws to set the correct
viewing angle, then re-fasten them.
20
External power
cable
Carefully check the polarity (Red: +, Black: -) and
power ratings (13.8 V DC +/- 15%) of the power supply
before connecting to the radio.