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Andy Neil
11/09/05 14:41
Read: 907 times

#103501 - M2M
Responding to: Suresh Kumar Kavula's previous message
Suresh Kumar Kavula said:
Just now I came to know one more wireless technology called CDPD (Cellular Digital Packet Data) runs on AT commands and UDP.

Sounds similar to GPRS?
Is this the name for Qualcomm's equivalent of GPRS?

Distance coverage: 30 Miles

If you use the public cellular service (whatever it may be) distance is irrelevant - it's just a question of whether or not you have coverage at all the necessary locations.
As Erik says, cellular coverage inside buildings (especially industrial, steel-framed buildings) can be very trick...

Try putting "M2M into your favourite internet search engine - short for "Machine-to-Machine"

List of 13 messages in thread
GSM, GPRS, CDMA, DTMF wireless      Suresh Kumar Kavula      11/08/05 14:05      
   Google is your friend      Craig Steiner      11/08/05 14:20      
      Glossary        Andy Neil      11/08/05 17:15      
         you missed TDMA      Erik Malund      11/09/05 06:41      
            GSM is TDMA      Andy Neil      11/09/05 14:30      
               +FDMA      Dan Henry      11/09/05 17:11      
   CDPD, Wireless N/W parameters?      Suresh Kumar Kavula      11/09/05 10:57      
      Good luck, you will need it      Erik Malund      11/09/05 11:24      
      M2M      Andy Neil      11/09/05 14:41      
      Doesn't run on AT commands?      Andy Neil      11/09/05 14:43      
      CDPD - Obsolete?      Andy Neil      11/09/05 14:47      
         Valuable Info      Suresh Kumar Kavula      11/10/05 12:11      
      Data transfer direction/speed        Craig Steiner      11/10/05 12:30      

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