Radioddity Extended manual for Radioddity DB25-D, DB40-D & GD-88 v3.0
© Radioddity 2023 page 223 of 252
17 Connectivity
The Radioddity DB25-D, DB40-D as well as the Radioddity GD-88 have various
sockets for connecting power, antennas, speaker-microphone, programming
cable and other accessories. Their internal connections are as follows:
17.1 Power connector of DB25-D and DB40-D
The connector is of a so-called T-type and often used within cars for 2pin
connections. Your Radioddity DB25-D or DB40-D comes with the proper
counterpart, connected to a plug that does fit in a car´s cigarette lighter socket in
order to power your radio within seconds, without the hassle of any specific wiring
for your car.
Attention: Do not power the DB25-D or DB40-D with more than 13.8V DC.
17.2 Battery connector of GD-88
The battery is connected to the radio via a 2-pin spring-type connector that seals
with the battery.
Attention: Do not charge the radio while operating as such may cause damage
to the charger.
17.3 HF Antenna connector
The below table does show the socket type for connecting an antenna (Radioddity
GD-88) or an antenna cable (Radioddity DB25-D and Radioddity DB40-D.
Do not mount an antenna (without a cable) directly to the Radioddity DB25-D or
Radioddity DB40-D as radiated HF may have a negative impact on the radio´s
operation and may also influence your car’s electronics. Make sure the antenna is
matched for 2m & 70cm frequency band.
Notes: If using an external switching power supply for operating the Radioddity
DB25-D or Radioddity DB40-D at home, make sure that the cable for the
antenna and for the power supply are routed as far away from each other as
possible. If you encounter sudden reboots of the radio, put an additional clip-
on ferrite on the power cable, close to the radio.
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