72 SETTING A FREQUENCY Tuning step selectionWhen using the tuning dial to change the frequency, or whena scan function is activated, the frequency changes in incre-ments determined by the set tuning step. This can bechanged if desired.The following tuning step are available.• 1 Hz • 10Hz • 20 Hz • 50 Hz • 100 Hz• 500Hz • 1 kHz • 2.5 kHz • 5 kHz • 6.25 kHz• 8.33 kHz • 9 kHz • 10 kHz • 12.5 kHz • 15 kHz• 20 kHz • 25 kHz • 30 kHz • 50 kHz • 100 kHz• 125 kHz • 150 kHz • 200 kHz • 500 kHz • 1 MHz• 10 MHzq Push [V/MHz•SCAN] to select VFO mode, if necessary.w Push [TS•MODE] to enter the tuning step select mode.r Rotate [DIAL] to select the desired tuning step.tPush [TS•MODE] to exit the tuning step select mode. Setting a frequencyq Rotate [DIAL] to set the frequency.• If VFO mode is not selected, push [V/MHz•SCAN] to select VFOmode.• The frequency changes in the selected tuning steps. (p. ??)wTo change the frequency in 1 MHz (10 MHz for some ver-sions) steps, push [V/MHz•SCAN], then rotate [DIAL].• Pushing [V/MHz•SCAN] for 1 sec. starts scan function. If scanstarts, push [V/MHz•SCAN] again to cancel it.While 1 MHz tuning step isselected, the digit below100 kHz disappear.While 10 MHz tuning step isselected, the digit below 1MHz disappear.[DIAL][V/MHz•SCAN][DIAL][TS•MODE][V/MHz•SCAN]

PANEL DESCRIPTION

I Function display

q Antenna

SETTING A FREQUENCY

I Tuning step selection

BASIC OPERATION

I Squelch attenuator

MEMORY OPERATION

I Programming a memory channel

I Programming channel names

I Copying memory contents

I Memory clearing

I Memory bank selection

SCAN OPERATION

I Scan start/stop

I Scan edges programming

I Skip channel/frequency setting

PRIORITY WATCH

POCKET BEEP AND TONE SQUELCH

I Tone/DTCS squelch operation

SET MODE

I Speciﬁcations

I Options

Icom IC-R1500 Instruction Manual

LOGIC UNIT

MAIN-A UNIT

PLL CIRCUITS

DIGITAL MODE OPERATION WITH UT-122

POWER SUPPLY CIRCUITS

CPU PORT ALLOCATION

PREPARATION

MAIN-A UNIT ADJUSTMENT

MAIN-B UNIT ADJUSTMENT (PCR2500 only)

main unit

top view

IC-R1500

Rear panel connection

panel description

Function display—controller

Rear panel—main unit

Mode selection

Tuning step selection

Receive mode selection

Monitor function

Attenuator function

AFC function

IF ﬁlter selection

Duplex operation

Memory channel selection

Programming a memory channel

Programming channel names

Copying memory contents

memory operation

Memory clearing

Memory bank setting

Memory bank selection

scan operation

Scan start/stop

Scan edges programming

Skip scan

Scan resume condition

pocket beep operation

Tone/DTCS squelch operation

Tone scan

Set mode items

set mode

Weather channel operation

DATA cloning

Partial reset

Internal audio switch

troubleshooting