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8

OTHER FUNCTIONS

. Optional HM-75A functions

The optional HM-75A allows you to remotely select operating chan-

nels, open the squelch, etc. The switches on the HM-75A function
as follows.

~

CAUTION: When connecting the HM-75A to the transceiver,

~

make sure that power to the transceiver is turned OFF, other-

~

wise the transceiver may malfunction.

PTT switch

~

O@

Lock switch:

Locks all

switches
except [PH]

911

SPECI FICATIONS

GENERAL

. Frequency

coverage:

462.5625-467.7125

MHz

. Mode

: FM (8K50F3E)

. No. of operatingch.

: 14 (simplex)

.

Frequencystability:

:1:4ppm; :1:1.7

kHz

. Frequencyresolution:

25 kHz

. Power supply requirement:4.5 V (AA x 3) or BP-202
. Currentdrain

: 400 mA typical

. Operatingtemp. range:

+14'F to +122'F (-10'C to +50'C)

. No. of CTCSSfreq.

: 38

. Dimensions

: 55.5(W)x102.5(H)x26.5(D)

mm

(projections

not included)

. Weight

: 180g (including3 AA batteries)

TRANSMITTER

.

Outputpower

. Maximum deviation

. Spurious emissions
. Ext. mic. connector

: Less than 500 mW ERP
:

:1:2.5

kHz

:Less than -40dB

: 3-conductor 2.5 (d) mm/2.2 kQ

RECEIVER

. Receive system
. Sensitivity

(12 dB SINAD)

.

Selectivity

: More than 8.5 kHz/-6 dB

.

Spurious and image rejection ratio: More than 40 dB

.

Adjacent ch. selectivity:

More than 40 dB

. Intermodulation rejection ratio: More than 40 dB

.

Audio output power

: More than 100 mW at 10 %

(at 4.5 V DC)

distortion with an 8 Q load

.

Ext. speaker connector:

2-conductor 3.5 (d) mm/8 Q

: Double-conversion superheterodyne
: Less than 0.2 ~V

All

stated specifications are subject to change without

notice or obligation,

SWITCH

NORMAL

While holding [PTT]

A

Smart-Ring

No function

B

Open squelch

No function

UP

Change the oper-

6

ating

channel

Smart-Ring

numberup.

DOWN

Change the oper-

\l

ating

channel

Call-Ring

number down.

Содержание IC-4008A

Страница 1: ...hannel continuously 0 CHANNEL DOWN SWITCH DOWN Push to decrease the operating channel Push and hold to decrement the operating channel continuously 0 SPEAKER 0 MODE SWITCH MODE Squelch Push to toggle between Group mode and Normal mode p 11 Push and hold for 1 sec to force the squelch open push and hold for sec to close it again p 8 f POWERSWITCH POWER Key lock Push to tum the power ON Push and hol...

Страница 2: ...oup function is turned ON t CHANNEL NUMBER INDICATOR Indicates operating channel number POWER ON INDICATOR Appears while the power is ON e ANSWER BACK INDICATOR see p 17 Appears when you and your group are in the conversation area Blinks when you or your group is out of the conversation area i PTT HOLD INDICATOR see p 16 Appears when the PTT HOLD function is turned ON Blinks while the transceiver ...

Страница 3: ...ceiver or when the battery pack becomes exhausted If you want to be able to charge the battery pack more than 300 times the following points should be observed 1 Avoid overcharging The charging period should be less than 48 hours 2 Use the battery until it becomes almost completely exhausted under normal conditions We recommend battery charging just after transmitting becomes impossible Charging p...

Страница 4: ...power on indicator and oper ating channel number appear on the display Adjusting the volume Q Push and hold MODE for 1 1sec to open the squelch Busyindicator Yf Busy indicator appears on appears the d play while the q eleh jj open l LJ Adjust the audio to a suitable level 0 6 0 using V L Q CID Push and hold MODE for 1sec to Q ICID closethe squelch V What s squelch A squelch circuit allows you to m...

Страница 5: ...me to the desired appears 0 audio level Seep 8 f e 0 Select a desired operating channel l U When a signal is received Squelch opens and audio is emitted 1J tr ce D fromthe speaker Further adjustment of VOL may be c c c necessary at this point BUSY indicator appears on the dis play W Push and hold PH to transmit then speak into the microphone Do not hold the transceiver too close to your mouth or s...

Страница 6: ...ring group mode operation even when the busy in dicator appears on the display 11 CTCSS Continuous Tone Coded Squelch System 6 II What is CTCSS Continuous Tone Coded Squelch Sys tem GROUP MODE J CTCSS Continuous Tone Coded Squelch System GROUP MODE allows communication with silent stand by Only signals containing your group code can open the squelch This conveniently eliminates unwanted audio and ...

Страница 7: ...me group channel number for all of your group transceivers See left While pushing PH push UP A 0 A beep is emitted and blinks on the display Q Release the PH 0 When a member of your group an swers your call the transceiver emits beep tones for 10 sec and blinks i 0When no answer comes back the transceiver emits 3 short faint beep tones Push PH to answer and to stop the beeps and flashing c c ca NO...

Страница 8: ...h a ke These can be turned ON or OFF While pushing POWER DOWN push OTHER FUNCTIONS 8 0 PTT hold function This function frees you from having to constantly push PTT during conversation CD While pushing PTT push POWER ON to toggle the function ON or OFF appears on the display when the PTThold function isactivated Q Once PTT is pushed you need not hold it any longer during your conversa tion appearsa...

Страница 9: ...signal without any preset tings AIIIC 4008A s operating on the same operating channel will an swer back to your call in your communication area Low battery indicator Appears when the battery is nearing exhaustion A warning beep is emitted at power ON Appears and blinks when battery re placement is necessary OTHERFUNCTIONS 8 LCD backlight Automatically turns ON for 5 sec when you push any key ex ce...

Страница 10: ...55 5 W x102 5 H x26 5 D mm projections not included Weight 180g including3AA batteries TRANSMITTER Outputpower Maximum deviation Spurious emissions Ext mic connector Less than 500 mW ERP 1 2 5kHz Less than 40dB 3 conductor 2 5 d mm 2 2 kQ RECEIVER Receive system Sensitivity 12 dB SINAD Selectivity More than 8 5 kHz 6 dB Spurious and image rejection ratio More than 40 dB Adjacent ch selectivity Mor...

Страница 11: ...ARGER AD 89 BATTERY PACK ADAPTER attached to BC 119 DESKTOP CHARGER p 7 0 Speaker microphones HM 46 M 4 GJ HS_85HEADSET PTT switch VOX One touch PTT for hands free operation Remote control capability see p 17 for details 21 1111 MEMO Channel numberand group number Use this page to record your group operating channel number see p 9 and group channel number p 11 for your reference Operating channel ...

Страница 12: ...rrantyapplicableand ICOMAMER ICA INC neitherassumesnor authorizesanyoneto assumefor it anyother expresswarranty 23 WARRANTY 12 WARRANTY SERVICE INSTRUCTIONS 1 If you have any difficulty send your equipment to the appropriate address below or to the nearest Authorized ICOM Warranty Service Center how ever service address and return address must be within boundaries of the same country Equipment sho...

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