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V1.5 CPU EPROM Version
V1.5 xxxxxx CBO VERSION (2764).
New 8 Ko EPROM (2764) to insert on the CDC-353 CPU card.

 CDC-353 CPU card
description.
  • MEMO 9 FUNCTION indicates the EPROM version and the JRC serial number.
  • "J1" RS-232 FUNCTION displayed your personals parameters on the RS-232.
  • 5 IF FILERS SELECTION NARR, INTER, WIDE, >12 KHz, AUX.
  • "B4" RS-232 FUNCTION to use 12 KHz filter with RS-232 interface (read/write instruction).

  • 11 TUNING STEPS by pressing the RUN, DOWN and UP keys :
    • STEP :10 Hz1 KHz5 KHz6,25 KHz8,33 KHz or 9 KHz (*)12,5 KHz15 KHz25 KHz
    x10 (RUN):100 Hz10 KHz50 KHz

    (*) 8,33 KHz or 9 KHz.

    The speed rotation of the central tuning knob is proportional for the 10 Hz and 100 Hz fine steps, as before.
    The speed is linear for the 9 others steps.
    The central tuning knob, the DOWN/UP keys and SWEEP function works with the same tuning steps, in all modes.

    With a first pressing on the RUN key, the actual tuning step is indicated on the display as below:

    - -. 1 2.5 0 KHz
    (for 12,50 KHz step)

    By pressing the DOWN or UP keys, you can decrease or increase the tuning step.
    This step display is cleared when you turn the tuning knob or if you press the FREQ, CHANNEL, CLR, MODE, CLOCK, SCAN or SWEEP key.


    EPROM notice (.pdf) :

    French EPROM tab.

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