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  1.  
  2. PART IV.                        NAM FORMAT MAP
  3.  
  4.                                                                HEX
  5. MARK DEFINITION    MOST <-  BIT SIGNIFICANCE ->  LEAST       ADDRESS   
  6. ----------------------------------------------------------------------------
  7.                   0         SIDH (14-8)                        00 
  8.                             SIDH (7-0)                         01
  9. LU=LOCAL USE**    000000          MIN                          02
  10. LU                A/B*  RI*       MIN2(33-28)                  03
  11.                             MIN2(27-24)       0000             04
  12.                   0000      MIN1(23-20)                        05
  13.                             MIN1(19-12)                        06 
  14.                             MIN1(11-4)                         07
  15.                             MIN1(3-0)         0000             08
  16.                   0000      SCM(3-0)                           09 
  17.                   00000     IPCH(10-8)                         0A
  18.                             IPCH(7-0)                          0B 
  19.                   0000      ACCOLC(3-0)                        0C  
  20. PS=PREFERRED**    0000000   PS                                 0D
  21.    SYSTEM         0000      GIM(3-0)                           0E 
  22.                    LOCK DIGIT 1           LOCK DIGIT 2         0F
  23.                    LOCK DIGIT 3           LOCK SPARE BITS      10
  24. EE=END TO END      EE           000000          REP            11
  25.   SIGNALING        HA           000000          HF             12
  26. REP=REPERTORY      ----------------------------------------------
  27. HA=HORN ALERT                                                  13
  28. HF=HANDS FREE                                                  14
  29.                                                                15
  30.                                                                16
  31.                               SPARE LOCATIONS (13-1D)          17
  32.                               CONTAIN ALL ZEROS EXCEPT         18
  33.                               FOR MANUFACTURERS OPTIONS        19
  34.                                                                1A
  35.                                                                1B
  36.                                                                1C
  37.                                                                1D
  38.                                     NAM CHECKSUM ADJUSTMENT    1E
  39.                                     NAM CHECKSUM               1F 
  40.                                 
  41.  
  42. The Checksum Adjustment and Checksum are calculated automatically after
  43. the data has been edited for the NAM.  The sum of all words in the NAM plus
  44. the last two must equal a number with "0" in the last two digits.  The radio
  45. checks this sum and if it isn't correct, the radio assumes the NAM is bad or
  46. that it has been tampered with.
  47.  
  48.  
  49.  * - These bits are used only by AT&T,Hitachi and Mitsubishi. They are A/B
  50.  Enable and Roam Inhibit. They must be "0" for all other models.
  51.  
  52. ** - My information does not agree here. One source claims that address 03
  53.      has 6 bits and that address 0D has 7 bits. The other source states the
  54.      the exact opposite.
  55.  
  56. *****************************************************************************
  57.  
  58.