Digital Modulation SME
1038.6002.02 2.78 E-13
2.6.3 Digital Modulation
The SME offers the following digital modulations (option SME-B11, DM coder):
• GMSK for
GSM/PCN (Global S
ystem for Mobile Communications/
Personal Communication System)
CDPD (Cellular Digital Packet Data)
MC9 (French Communication network)
MOBITEX (Mobile data system)
DSRR (Digital S
hort Range Radio)
MD24 to MD192 (Standards according to ETS specifications)
• GFSK for
DECT (Digital E
uropean Cordless Telephony)
CT2 (Cordless Telephony)
CT3 (Cordless Telephony)
• QPSK for
NADC (North A
merican Digital Cellular)
PDC (Pacific Digital Cellular)
TFTS (Terrestrial Flight Telephone System)
APCO25 (Association of Public Safety Communications Officers,
Project 25)
TETRA (Trans European Trunked Radio)
MSAT (Mobile Satellite)
INMARSAT-M (International Maritime Satellite)
• FSK for
POCSAG (Post O
ffice Code Standardization Advisory Group)
CITYRUF (German pager system)
FLEX (Flexible High Speed Paging System)
• 4FSK for
ERMES (European R
adio Message System)
APCO25 (Association of Public Safety Communications Officers,
Project 25)
FLEX (Flexible High Speed Paging System)
MODACOM (Mobile Data Communication)
• FFSK for
POCSAG (Post O
ffice Code Standardization Advisory Group)
Internal or external data sources can be used. A PRBS generator with selectable sequence lengths and
a data generator (RAM) are available as an internal data source. Option SME-B12, memory extension,
increases the memory depth to 8 MBit.
Option SME-B12, memory extension, can be used to set radiocommunication service ERMES directly,
cf. Section "Radiocommunication Service ERMES".
Option SME-B41, FLEX, together with option SME-B12, memory extension, can be used to generate
call signals complying to the FLEX standard, cf. Section "Radiocommunication Service FLEX".
Option SME-B42, POCSAG, together with option SME-B12, memory extension, can be used to
generate call signals complying to the POCSAG standard, cf. Section "Radiocommunication Service
POCSAG".
Option SME-B43, REFLEX, together with option SME-B12, memory extension, can be used to generate
call signals complying to the ReFLEX standard. , cf. Section "Radiocommunication Service REFLEX".
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