Comments
The CM (Class Mark) is a 4 bit number which holds three different pieces of information. Your cellular telephone transmits this information (and more) to the cell tower. Bit 1 of the CM tells the cell tower whether your cellphone uses the older 666 channel cellular system, or the newer 832 channel cellular system. The expansion to 832 channels occured in 1988. Bit 2 tells the cellular system whether your cellular telephone is a mobile unit or a voice activated cellular telephone. Bit's 3 and 4 tell the cell tower what power your cellular telephone should be transmitting on.
Posted by jahangir1983
The CM (Class Mark) is a 4 bit number which holds three different pieces of information. Your cellular telephone transmits this information (and more) to the cell tower. Bit 1 of the CM tells the cell tower whether your cellphone uses the older 666 channel cellular system, or the newer 832 channel cellular system. The expansion to 832 channels occured in 1988. Bit 2 tells the cellular system whether your cellular telephone is a mobile unit or a voice activated cellular telephone. Bit's 3 and 4 tell the cell tower what power your cellular telephone should be transmitting on.
Posted by jahangir1983
you can also visit this link
www.tech-faq.com/scm-station-class-mark.shtml
Posted by waqasahmad
The Class Mark is a 4 bit number which holds three different pieces of information.
and you follow the link for more detail
www.tech-faq.com/scm-station-class-mark.shtml
Posted by HamidAliKhan
Class-of-station information referred to as the station class mark (SCMp) must be stored in
15 a mobile station.
Station Class Mark
Function Bit(s) Setting
Extended SCM Indicator 7 Band Classes 1,4 1XXXXXXX
Other bands 0XXXXXXX
Dual Mode 6 CDMA Only X0XXXXXX
Dual Mode X1XXXXXX
Slotted Class 5 Non-Slotted XX0XXXXX
Slotted XX1XXXXX
IS-54 Power Class 4 Always 0 XXX0XXXX
25 MHz Bandwidth 3 Always 1 XXXX1XXX
Transmission 2 Continuous XXXXX0XX
Discontinuous XXXXX1XX
Power Class for Band
Class 0 Analog Operation
1 - 0 Class I XXXXXX00
Class II XXXXXX01
Class III XXXXXX10
Reserved XXXXXX11
Posted by kparikh
The CM (Class Mark) is a 4 bit number which holds three different pieces of information. Your cellular telephone transmits this information (and more) to the cell tower. Bit 1 of the CM tells the cell tower whether your cellphone uses the older 666 channel cellular system, or the newer 832 channel cellular system. The expansion to 832 channels occured in 1988. Bit 2 tells the cellular system whether your cellular telephone is a mobile unit or a voice activated cellular telephone. Bit's 3 and 4 tell the cell tower what power your cellular telephone should be transmitting on.
Note:
From www.tech-faq.com/scm-station-class-mark.shtml
Posted by sagitraz
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