TABLE OF CONTENTS continued
PARAGRAPH PAGE
3. GENERAL THEORY OF OPERATION continued
3-9 10 MHz REFERENCE OSCILLATOR (81772) 3-9
3-10 DSP/CPU (81807) 3-9
3-11 FRONT PANEL CPU (81819) 3-10
3-12 KEYPAD BOARD (81820) 3-11
3-13 LOGIC BOARD ↔ CPU INTERCONNECTIONS 3-11
4. LOCAL OPERATION
4-1 INTRODUCTION 4-1
4-2 FRONT PANEL OVERVIEW 4-1
4-3 MAIN TUNING KNOB 4-2
4-4 LOCK BUTTON 4-2
4-5 STEP ← → BUTTONS 4-2
4-6 MODE ← → BUTTONS 4-3
4-7 BITE BUTTONS 4-3
4-8 ↑/+ AND ↓/- BUTTONS 4-3
4-9 ATTN/PREAMP BUTI’ON 4-4
4-10 MANUAL GAIN KNOB 4-4
4-11 REMOTE BUTTON 4-4
4-12 ISB SPEAKER SOURCE BUTTON 4-5
4-13 SPEAKER KNOB 4-5
4-14 PHONES KNOB 4-5
4-15 AUXILIARY PARAMETER OVERVIEW 4-5
4-16 BANDWIDTH (BW) BUTTON 4-6
4-17 BEAT FREQUENCY OSCILLATOR (BFO) BUTTON 4-7
4-18 PASSBAND (PBT) BUTTON 4-8
4-19 DUMP BUTTON 4-9
4-20 AUTOMATIC GAIN CONTROL (AGC) BUTTON 4-9
4-21 NOTCH BUTTON 4-10
4-22 SQUELCH (SQL) BUTTON 4-11
4-23 NOISE BLANKER (NB) BUTTON 4-12
4-24 OPT-1 BUTTON 4-12
4-25 OPT-2 BUTTON 4-12
4-26 MEMORY/SCAN OVERVIEW 4-12
4-27 STORE THE CURRENT OPERATING FREQUENCY IN A
SPECIFIED CHANNEL (0-100)
4-13
4-28 STORE THE CURRENT OPERATING FREQUENCY IN THE
LOWEST EMPTY CHANNEL NUMBER
4-14
4-29 STORE THE CURRENT OPERATING FREQUENCY IN THE
SCRATCHPAD MEMORY
4-15
4-30 TO RECALL A SPECIFIC CHANNEL FROM MEMORY 4-15
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