A6 C/A Coder

End is Labeled:

A-6    C/A CODER                        100-101117
N          L         J                             E  D  C  B  A
G          R        R                             T  T  T  T  T
r            e         e                              P  P  P  P  P
n            d         d

ICD-GPS-200

The C/A code is made up of the combination of two 1023 bit inear patterns G1 and G2i.  G2i is formed by delaying the G2 sequence by an integer number of chips between 5 and 950.

The sequence definations are:
G1 = 1 + X³ + X¹⁰
G2 = 1 + X² + X³ + X⁶ + X⁸ + X⁹ + X¹⁰

^{I would expect to find logic that implements the algorighim shown in ICD-GPS-200 Fig.  3-11 C/A-Code Genertion on this board and the long variable delay line on the A7 Delay Line board.}

 
 

blank	blank	blank	blank
Beckman 899-1-R270	M SN74LS86N	TI SN 74128N	AM25LS07PC
TI SN74LS321	93S48PC	AM25LS194APC	DM74LS37N
SN74LS123N	SN74LS133N	AM25LS194APC	076-200058  - PROM?
header  rcrc----	Beckman  899-1-R1k	AM25LS194ADC	AM25LS163PC
blank	076-200059 - 93427pc PROM?	AM25LS194APC	AM25LS163PC
AM25LS378PC	076-200056 - 93427pc PROM?	AM25LS194APC	AM25LS163PC