Service Manual SD170EX Series
Page 8 of 38
Installation
Installation
The SD-170EX Series Radio Modems usually requires mounting in a suitable location.
Attention should be given to the heat sinking of the radio if prolonged transmission is
required; see Section 2, which also includes details of the mounting hole dimensions.
Note: Continuous transmission is not possible at high power (5W) without a suitable heat
sink.
The SD-170EX Series Radio Modems can be used with helical or whip aerials or may be
connected to an external antenna, via a suitable connecting cable.
External Connections
Connection is made to the SD-170EX Series Radio Modems via an external 50 ohm BNC
socket (RF signal) and a high density 9-way “D”-type socket (DB-9 connector; control and
data signals) with 4-40 UNC threaded jack posts for more permanent connection. Besides,
SCN-12 type circular connector is added to separate power line from data and analogue
signals of DB-9 connector.