Icom IC-R8500 instruction manual Sleep Timer, Operation

Page 32

7 SLEEP TIMER

The IC-R8500 has a sleep timer function to automati- cally turn the power OFF after a speciﬁed period.

[SLEEP/ SET ] switch

DOperation

➀Push [SLEEP/ SET ] momentarily, several times, to activate the sleep timer and set the power OFF period.

•When the sleep timer is activated, “ SLEEP ” appears in the display.

•5 settings are available: 120, 90, 60, 30 min. and sleep OFF.

➁2 sec. after performing step ➀ above, the receiver returns to the previous display.

➂To conﬁrm the set sleep period, push [SLEEP/ SET ] momentarily, one time.

•Be careful not to push the switch more than once, other- wise the sleep period may be changed.

➃To turn ON the receiver after the sleep timer has turned power OFF, push [POWER] OFF then ON again.

•The sleep timer is cancelled.

SLEEP

		Minutes
	SLEEP
	Each push of	Minutes
	SLEEP/ SET	Minutes
	SLEEP/ SET

after 2 sec.

SLEEP

kHz

ICOM IC-R8500

Previous display

Push SLEEP/ SET once

SLEEP

Minutes

Set time

Image 32

Contents IC-r8500 Accessories included with the IC-R8500 Qty Explicit DefinitionsTable of Contents ➋ SLEEP/SET Switch SLEEP/SET Panel DescriptionFront panel ➎ Headphone Jack Phones@0S-METER 5SPEECH/LOCK Switch SPCH/LOCK7MAIN Dial @7SCAN Switches Scan Scan SET Skip p Auto pPrio p DLY D/S pRear panel 7ATTENUATOR Indicators 9RECEIVE IndicatorFunction display MHz kHzMounting installation ConnectionsLocation Receiver standRequired connections Using a long wire antenna for HF bands TYPE-N Connector Installation ExamplePL-259 Connector Installation Example Antenna connection GroundingConnecting to a PC Tape recorder connectionsTransceive function Data demodulation terminalFrequency Setting Using the keypadExample Setting the Frequency Using the Keypad Read me ﬁrstUsing the main dial Selecting a tuning stepSetting the programmable tuning step Setting the lock function coverageReceive Functions Initial settingsMode selection Center indicator Squelch functionFunctions for FM Functions for SSB/CWBFO adjustment Noise blankerAudio peak ﬁlter Dagc functionFor high speed data 9600 bps reception in FM mode Data communicationsConnections Receiving methodBank Initial Contents Usage Memory ChannelsGeneral Bank selectionUsing the M-CH selector Using the keypadChannel selection Bank limit functionClearing ProgrammingCopy and paste memory editing Bank name programming Channel/bank namesChannel name programming To rearrange bank channel assignments Assigning channel numbersDeleting memory channels ➃ Push Bank for 1 sec. to perform the selected operation Adding/inserting memory channels➂ Rotate M-CH to select the following Scans OperationMemory scan Memory select scanDProgrammed scan Mode select function Specifying skip channel and frequencyPriority scan Specifying skip channelsTurning OFF the automatic function Automatic bank limit/skip functionsVoice scan control function Scan speed/delay functions Programming scan edge frequenciesScan resume condition OFF DLY ∞Scan speed Assigning a function to the DELAY/SPEED controlScan delay Sleep Timer OperationSET Mode Selecting quick set modeSelecting initial set mode Display Example Quick SET ModeQuick set mode items Initial set mode items When the optional UT-102 Voice Synthesizer Unit is Installed, you can select between EnglishInstalled, you can select between faster or slower This item sets the data transfer rate. When AutoConnector Information RS-232C socket Remote jackIf OUT jack AGC OUT jackDC 13.8 V and DC in sockets REC Remote jackREC OUT jack Phones jackControl Commands Command tableData format Basic format from PC to IC-R8500Memory channel contents set & write 1A ‘OK’ message from IC-R8500 to PC‘NG’ message from IC-R8500 to PC Special bank number and channels bnMaintenance Optional Installations ➂Replace the top coverCR-293HIGH Stability Crystal Unit Operation TV-R7100 speciﬁcationsGeneral TV receiverTroubleshooting Memory Channels Scan Problem Possible Cause Solution Receiver SpecificationsGeneral Options AH-7000FL-52ACW Narrow Filter 455 kHz 500Hz/-6 dB AD-55/A/V AC AdapterCount on us

IC-R8500 specifications

The Icom IC-R8500 is a highly regarded general-purpose receiver that has made its mark among amateur radio enthusiasts and professionals alike. This versatile communication receiver is known for its wide frequency coverage, advanced features, and robust design, making it a valuable tool for various applications, including shortwave listening, public safety communication, and aircraft monitoring.

One of the standout features of the IC-R8500 is its extensive frequency coverage. It spans a range from 0.1 MHz to 3 GHz, allowing users to access a wide spectrum of signals. The receiver includes coverage of HF, VHF, UHF, and even microwave bands, making it suitable for listening to everything from amateur radio transmissions to satellite communications.

The receiver employs a high-performance double-conversion superheterodyne architecture, which contributes to its excellent sensitivity and selectivity. The advanced RF circuitry minimizes interference and enhances the clarity of received signals. Users can expect outstanding audio quality and a wide dynamic range, even in challenging reception conditions.

Digital Signal Processing (DSP) is another key technology incorporated into the IC-R8500. The DSP capabilities allow users to apply noise reduction and filtering techniques to improve the quality of the received audio. Features such as automatic notch filtering and IF filtering help eliminate unwanted noise, enhancing the listening experience.

The IC-R8500 is equipped with a large, easy-to-read LCD display that provides information on frequency, mode, signal strength, and other essential parameters. The user-friendly interface simplifies operation, allowing quick access to various settings and functions. Additionally, the receiver supports various modulation modes, including AM, FM, SSB, and CW, catering to different listening preferences.

For those seeking enhanced connectivity, the IC-R8500 offers multiple options, including an audio output jack, and external speaker connections. It also has a built-in memory function, allowing users to store and recall favorite frequencies easily. The receiver can be controlled via a computer interface, offering versatility for advanced users and programmers.

In summary, the Icom IC-R8500 stands out for its wide frequency range, superior sensitivity, and advanced features powered by DSP technology. Its robust construction and user-friendly design make it a favorite among communications enthusiasts seeking a reliable and versatile receiver for various applications. Whether for hobbyist listening or professional use, the IC-R8500 remains a top choice in the world of radio receivers.