Specifications

Chapter 8 – SocketModem GPRS (MTSMC-G)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342F) 120
Peripheral Devices
Antenna
An antenna with an SMA connector may be directly connected to a SocketModem GPRS through a
mating MMCX to SMA adapter.
Antennas Available from Multi-Tech:
Description Part Number
Hinged Right Angle 900/1800 MHz Cellular Modem Antenna ANF1-1HRA
Hinged Right Angle 800/1900 MHz Cellular Modem Antenna ANCF2-1HRA
Antenna Adapter Connector
The integrated modem antenna connector is an MMCX adapter. The MMCX connector incorporates a
'Snap On' latching action in order to make the connection easier with an excellent RF performance. An
additional advantage is its small physical size, which is 50% of the standard MCX connector.
This type of connector is suitable for the standard ranges of flexible and semi-rigid cables. The
characteristic impedance of the MMCX coaxial connector is 50 ohm. The antenna manufacturer must
guarantee that the antenna will be working according to the radio characteristics presented in the table on
the previous page.
MMCX / SMA Connector Available from Amphenol
Amphenol
http://www.amphenol.com/
Order No: 908-31100
Antenna Cable
An optional 6” antenna cable (SMA Jack to MMCX Plug) can be ordered from Multi-Tech Systems, Inc.
Part Number Description
CASMA-MMCX-1 SMA to MMCX COAX RF 6 inch cable (Single Pack)
CASMA-MMCX-10 SMA to MMCX COAX RF 6 inch cable (Ten Pack)
MMCX Plug
SMA Jack
Antenna Cable – SMA Jack to MMCX Plug