2 SD Series Ref. Manual (Packet & Transparent Mode) MDS 05-4846A01, Rev. C
Model Number
Notations
The term “SD” or “SD Series” is used in this manual to denote all
models in the SD product line. Specific model numbers such as MDS
SD2 (216-235 MHz), MDS SD4 (350-512 MHz), and MDS SD9
(928-960 MHz) are used only when necessary to reference model-spe-
cific features.
Authorization
Features
Some features of the radio are dependent on purchased options and
applicable regulatory constraints. A “key” icon is shown near the
heading of any such features. If your radio is not currently authorized for
a needed feature, contact your factory representative for information on
obtaining a new authorization code/key.
1.2 Electronic Manuals
All SD Series manuals are available in printed or electronic form. Elec-
tronic manuals may be downloaded from our web site at
www.gemds.com. The website also contains links to Application Bul-
letins and other product information.