IC-R75_user.pdf

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1、INSTRUCTION MANUAL COMMUNICATIONS RECEIVER iR75 Downloaded by? ? Amateur Radio Directory i IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLYbefore attempting to operate the re- ceiver. SAVE THIS INSTRUCTION MANUAL.This manual contains important safety and operating in- structions for the IC-R75. EXPL

2、ICIT DEFINITIONS RNEVERapply AC to the DC13.8V jack on the re- ceiver rear panel.This could cause a fi re or ruin the re- ceiver. RNEVERapply more than 16 V DC, such as a 24 V battery, to the DC13.8V jack on the receiver rear panel.This could cause a fi re or ruin the receiver. RNEVERlet metal, wire

3、 or other objects touch any internal part or connectors on the rear panel of the re- ceiver.This may result in an electric shock. NEVERexpose the receiver to rain, snow or any liq- uids. AVOID using or placing the receiver in areas with tem- peratures below 10C (+14F) or above +60C (+140F). Be aware

4、 that temperatures on a vehicles dashboard can exceed 80C (+176F), resulting in per- manent damage to the receiver if left there for ex- tended periods. AVOID placing the receiver in excessively dusty envi- ronments or in direct sunlight. AVOID placing the receiver against walls or putting anything

5、on top of the receiver. This will obstruct heat dissipation. Place unit in a secure place to avoid inadvertent use by chil- dren. During mobile operation, DO NOT operate the receiver without running the vehicles engine. When receiver power is ON and your vehicles engine is OFF, the ve- hicles batter

6、y will soon become exhausted. Make sure the receiver power is OFF before starting the vehicle. This will avoid possible damage to the re- ceiver by ignition voltage spikes. The receiver comes with the following accessories. Qty. q AC adapter (AD-55/A/V)* . 1 w DC power cable (OPC-869)* . 1 e Fuse (F

7、GB 3 A; internal use) . 1 r Fuse (FGB 3 A; for DC cable)* . 2 *Either AC adapter + 1 fuse (q, e) or DC power cable + 3 fuses (w, e, r) are supplied depending on versions. PRECAUTIONS SUPPLIED ACCESSORIES Versions of the IC-R75 which display the “CE” symbol on the serial number seal comply with the E

8、uropean har- monised standard ETS300 684 (EMC product standard for Commercially Available Amateur Radio Equipment). WORD R WARNING CAUTION NOTE DEFINITION Personal injury, fire hazard or electric shock may occur. If disregarded, inconvenience only. No risk of personal injury, fire or electric shock.

9、 Equipment damage may occur. qw er 1 1 TABLE OF CONTENTS IMPORTANT . i EXPLICIT DEFINITIONS . i PRECAUTIONS . i SUPPLIED ACCESSORIES . i 1 TABLE OF CONTENTS . 1 2 PANEL DESCRIPTION . 26 IFront panel . 2 IFunction display . 5 IRear panel . 6 3 INSTALLATION AND CONNECTIONS . 710 IGrounding . 7 IReceiv

10、er stand . 7 IOptional bracket and carrying handle . 7 IConnections . 8 IAntenna connection . 9 ITape recorder connections . 9 ITransceive function . 9 IFSK and AFSK (SSTV) connections . 10 IConnecting to a PC . 10 4 FREQUENCY SETTING . 1113 IRead me fi rst . 11 IUsing the keypad . 11 IFrequency set

11、ting . 12 IDial lock function . 13 5 RECEIVE FUNCTIONS . 1420 IMode selection . 14 ISquelch and RF gain . 14 ITwin PBT operation . 15 INoise blanker . 15 IPreamp . 16 IAttenuator . 16 IAGC time constant . 16 IAntenna selection . 16 ICW reverse mode . 17 ICW pitch control . 17 IRTTY reverse mode . 17

12、 IFilter selection . 18 IFilter set mode . 19 IOptional noise reduction function . 20 IOptional auto notch function . 20 6 MEMORY OPERATION . 2124 IMemory channels . 21 IMemory channel selection . 21 IMemory channel programming . 22 IFrequency transferring . 23 IMemory names . 24 IMemory clearing .

13、24 7 SCANS . 2527 IScan types . 25 IPreparation . 25 IProgrammed scan operation . 26 IMemory/select memory scan operation . 26 ISetting select memory channels . 26 IPriority watch operation . 27 IAuto memory write scan operation . 27 8 CLOCK AND TIMERS . 2829 ISetting the current time . 28 ISetting

14、power-on time . 28 ISetting power-off time . 29 ISetting sleep timer period . 29 9 SET MODE . 3033 ISet mode description . 30 10 OPTION INSTALLATIONS . 3435 IOpening the receivers case . 34 ICR-282 HIGH STABILITY CRYSTAL UNIT. 34 IUT-102 VOICE SYNTHESIZER UNIT. 34 IUT-106 DSP UNIT. 35 IOptional IF f

15、i lters . 35 11 MAINTENANCE . 3637 ITroubleshooting . 36 IResetting the CPU . 36 IFuse replacement . 37 IClock backup battery replacement . 37 12 SPECIFICATIONS . 38 13 OPTIONS . 39 14 CONTROL COMMAND . 4043 IRemote jack (CI-V) information . 40 I Front panel q POWER SWITCH POWER Push momentarily to

16、turn power ON. Turn the optional DC power supply ON in advance. Push for 2 sec. to turn power OFF. w HEADPHONE JACK PHONES (p. 8) Accepts headphones. When headphones are connected, the internal speaker or connected external speaker does not function. e AF CONTROL AF (inner control) Varies the audio

17、output level from the speaker. r RF GAIN/SQUELCH CONTROL RF/SQL (outer control; pgs. 14, 30) Adjusts the squelch threshold level.The squelch re- moves noise output from the speaker (closed con- dition) when no signal is received. The squelch is particularly effective for FM. It is also available for

18、 other modes. The control can be set as the squelch plus RF gain con- trols or squelch control only (RF gain is fixed at maxi- mum) in set mode. t PASSBAND TUNING CONTROLS TWIN PBT (p. 15) Adjust the receivers “passband width” of the 455 kHz and 9 kHz IF fi lters for the inner and outer con- trols,

19、respectively. Set to the center positions when not in use. y CLOCK MODE SWITCH CLOCK (p. 28) Toggles between frequency indication and clock in- dication when pushed. u ANTENNA SELECTOR/SET MODE SWITCH ANT/SET (pgs. 16, 30) While in a frequency indication, enters set mode when pushed. While in a freq

20、uency indication, toggles between the antenna 1 and 2 connectors when pushed for 2 sec. While in the clock indication, enters time setting condition when pushed for 2 sec. While in a timer indication, toggles the timer ON or OFF when pushed. i TUNING DIAL Changes the displayed frequency, selects set

21、 mode items, etc. o TUNING DIAL TENSION LATCH Adjusts the tension of the tuning dial. !0 LOCK/SPEECH SWITCH LOCK (pgs. 13, 34) Toggles the frequency lock function ON and OFF. Announces the selected readout frequency when an optional UT-102 is installed and when pushed for 2 sec. 2 2 PANEL DESCRIPTIO

22、N FIL TS CW/RTTY FM SSB AM PHONESPOWER RF/SQLTWIN PBTAF COMMUNICATIONS RECEIVER DNUP 12ABC3DEF 4GHI5JKL6MNO 7PRS8TUV9WXY .0QZENT V/MMW SELSCAN CLR LOCKAGCNBANFNRATTP.AMP SET CLOCK ANT Function display (p. 5)Speaker q w ertyi o!0!1 !3 !4 !5!6!7!8 !2 u 3 2PANEL DESCRIPTION !1 MEMORY CHANNEL UP/DOWN SW

23、ITCHES DN/UP (p. 21) Select a memory channel. Select a set mode contents while in set mode. Select a timer or time indication while in clock in- dication. Select a fi lter set mode contents while in fi lter set mode. !2 MEMORY WRITE SWITCH MW (pgs. 22, 27) Stores the displayed frequency and operatin

24、g mode into the selected memory channel when pushed for 2 sec. Toggles the programmed scan and auto memory write scan when pushed. !3 CLEAR SWITCH CLR (p. 24) Clears the input digits while inputting a frequency or memory channel number. Clears the selected memory channel contents when pushed for 2 s

25、ec. in memory mode. This switch does not function in VFO mode. !4 VFO/MEMORY SWITCH V/M (pgs. 21, 23) Toggles the operating mode between VFO mode and memory mode when pushed. Selects a memory channel for inputting a mem- ory channel number when pushed. Transfers the memory contents to VFO when pushe

26、d for 2 sec. !5 KEYPAD (pgs. 11, 21) The keypad can be used for several functions as below: Keypad then ENT Direct frequency input. Keypad then V/M Memory channel selection. ENT then keypad in memory name indication mode Alphanumeric input for memory name, etc. !6 QUICK TUNING STEP SWITCH TS (pgs. 1

27、2, 13) Selects a quick tuning step or turns the quick tun- ing step OFF. While the quick tuning indicator () is displayed, the frequency can be changed in kHz or MHz steps. While the quick tuning step is OFF, turns the 1 Hz step ON and OFF when pushed for 2 sec. 1 Hz indication appears and the frequ

28、ency can be changed in 1 Hz steps. While the kHz quick tuning step is selected, en- ters tuning step set mode when pushed for 2 sec. While the memory name indication is selected in memory mode, pushing this switch shows the op- erating frequency; and rotating the tuning dial while pushing this switc

29、h changes the frequency temporally. !7 FILTER SWITCH FIL (pgs. 18, 19) Push momentarily to toggle between the pre-pro- grammed normal, wide and narrow IF filters for the selected operating mode. Push for 2 sec. to enter fi lter set mode. !8 MODE SWITCHES SSB/CW/RTTY/AM/FM (p. 14) Select an operating

30、 mode. Push SSB to toggle between LSB and USB. Push CW/RTTY to toggle between CW and RTTY. Push CW/RTTY for 2 sec. to toggle between CW and CW reverse or RTTY and RTTY reverse. Push AM to toggle between AM and S-AM. Push FM to select FM. 4 2PANEL DESCRIPTION I Front panel (continued) !9 PREAMP SWITC

31、H P.AMP (p. 16) Push to toggle between preamp-1 and preamp-2 or turn the preamp OFF. 0 ATTENUATOR SWITCH ATT (p. 16) Push to toggle the 20 dB attenuator function ON and OFF. 1 NOISE REDUCTION SWITCH NR (p. 20) Toggles the optional noise reduction function ON and OFF when pushed. Functions in SSB, CW

32、 and RTTY modes.An optional UT-106 DSP UNITis required. Enters noise reduction level set mode when pushed for 2 sec. An optional UT-106 DSP UNITis required. 2 AUTOMATIC NOTCH FILTER SWITCH ANF (p. 20) Push to turn the optional automatic notch fi lter for receiving AM signals ON and OFF. An optional

33、UT-106 DSP UNITis required. 3 NOISE BLANKER SWITCH NB (p. 15) Toggles the noise blanker ON and OFF. The noise blanker reduces pulse-type noise such as that gen- erated by automobile ignition systems.This function is not effective for FM, or non pulse-type noise. 4 AGC SWITCH AGC (p. 16) Toggles the

34、AGC (Automatic Gain Control) time constant fast and slow when pushed. Toggles the AGC function ON and OFF when pushed for 2 sec. 5 SELECT SWITCH SEL (pgs. 24, 26) Toggles the select memory setting ON and OFF when pushed in memory mode. Toggles the memory name indication ON and OFF when pushed for 2

35、sec. in memory mode. 6 SCAN SWITCH SCAN (p. 25) Push momentarily to start/stop the programmed scan in VFO mode. Push momentarily to start/stop the memory scan in memory mode. Push for 2 sec. to start the priority watch in VFO mode. Push SCAN again to cancel the priority watch. FIL TS CW/RTTY FM SSB

36、AM PHONESPOWER RF/SQLTWIN PBTAF COMMUNICATIONS RECEIVER DNUP 12ABC3DEF 4GHI5JKL6MNO 7PRS8TUV9WXY .0QZENT V/MMW SELSCAN CLR LOCKAGCNBANFNRATTP.AMP SET CLOCK ANT Function display (p. 5) !901234 6 5 I Function display q TIMER INDICATOR (p. 28) Appears when power on/off timer or sleep timer is in use. w

37、 DSP UNIT INDICATOR (p. 35) Appears when an optional UT-106 DSP UNITis in- stalled. e AUTOMATIC NOTCH FILTER INDICATOR (p. 20) Appears when the optional automatic notch fi lter is in use. r NOISE REDUCTION INDICATOR (p. 20) Appears when the optional noise reduction function is in use. t LOCK INDICAT

38、OR (p. 13) Appears when the dial lock function is in use. y SIGNAL METER Shows the relative receive signal strength. Shows the S-meter squelch level when used. u PREAMP INDICATOR (p. 16) Appears when antenna preamp-1 or preamp-2 is in use. i ATTENUATOR INDICATOR (p. 16) Appears when the attenuator f

39、unction is in use. o ANTENNA INDICATORS (p. 16) Indicate which antenna connector is in use. !0 NOISE BLANKER INDICATOR (p. 15) Appears when the noise blanker function is in use. !1 SCAN INDICATOR (p. 25) Appears when scan or priority watch is activated. Flashes when scan or priority watch is paused. !2 AGC INDICATORS (p. 16) “AGC” appears when slow AGC time constant is selected. “F.AGC” appears when fast AGC time constant is selected. “AGC OFF” appears when the AGC function is turned OFF. “F.AGC” blinks while scanning or whi