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Developer Board and Interfaces Description
3.4.4
External Antenna
An antenna (internal or external) must be connected to the Developer Board for adequate GSM reception. You can connect the
g20 to either the on-board internal antenna or to an external antenna.
Two RF connectors on the side of Developer Board, labeled INT ANT and EXT ANT on the cover, are used for setting up the
antenna.
Figure 15. Antenna Connectors (external)
On the inside of the Developer Board, the EXT ANT connector is connected to the g20 and the INT ANT is connected to the
on-board internal antenna.
You must perform one of the following:
• To use the internal antenna, connect the EXT ANT and INT ANT connectors with the additional RF cable supplied in the
Developer’s Kit.
Figure 16. Antenna Connectors (internal)
• To use an external antenna, connect an external antenna or antenna application to the EXT ANT connector. (The connection
cable is not included.)
External
Antenna Input
Internal
Antenna Input
On-board
Internal Antenna
g20 RF Cable
Additional
RF Cable
EXT ANT
INT ANT
Summary of Contents for F3030A
Page 1: ...D r a f t Developer s Guide Motorola g20 Developer s Kit 98 08901C67 O ...
Page 2: ...ii 98 08901C67 O REVISION HISTORY Revision Date Purpose ...
Page 10: ...Preface 4 98 08901C67 O ...
Page 42: ...Developer Board and Interfaces Description 36 98 08901C67 O ...
Page 44: ...Mechanical Description 38 98 08901C67 O ...
Page 48: ...Service Support 42 98 08901C67 O ...
Page 51: ...98 08901C67 O 45 Schematics Placement and Parts List Figure 24 Diagnostics ...
Page 52: ...Schematics Placement and Parts List 46 98 08901C67 O Figure 25 Power ...
Page 53: ...98 08901C67 O 47 Schematics Placement and Parts List Figure 26 Debug Interface ...
Page 54: ...Schematics Placement and Parts List 48 98 08901C67 O Figure 27 Keypad and Display ...
Page 55: ...98 08901C67 O 49 Schematics Placement and Parts List Figure 28 Audio Interface ...
Page 56: ...Schematics Placement and Parts List 50 98 08901C67 O Figure 29 LEDs ...
Page 57: ...98 08901C67 O 51 Schematics Placement and Parts List Figure 30 Battery Charger ...
Page 58: ...Schematics Placement and Parts List 52 98 08901C67 O Figure 31 Serial Interface ...
Page 68: ...Schematics Placement and Parts List 62 98 08901C67 O ...
Page 72: ...Index 66 98 08901C64 O ...