Icom IC-R8500 instruction manual 5SPEECH/LOCK Switch SPCH/LOCK, 7MAIN Dial, @0S-METER

Page 5

!9

 

1 QZ

2 ABC

3 DEF

. ; ,

 

 

 

OFF DLY ∞

 

 

M-CH

 

4 GHI

5 JKL

6 MNO

BANK

SEL-CH SKIP-CH

kHz

8 TUV

9 WXY

 

M

BANK

IC-R8500

 

 

7 PRS

 

 

 

 

 

ENT

 

.

0

CE

ENT

 

 

 

NAME

 

 

MEMO

PROG

AUTO

PRIO

 

 

SCAN/ SCAN SET

 

 

SEL

SKIP

VSC

DLY D/S

PANEL DESCRIPTION 1

M-SET BANK

M-CL MW

M-CH DELAY/SPEED

!5!6!7!8

 

Center frequency

Center frequency

is shifted down.

is shifted up.

!2AUDIO PEAK FILTER CONTROL [APF] (p. 15) Adjusts the audio peak filter setting to pick up a de- sired audio frequency. Only valid when the [APF] switch is ON.

•Clockwise rotation adjusts the filter setting higher; coun- terclockwise rotation adjusts the filter setting lower.

!3ATTENUATOR SWITCHES [10dB]/[20dB]

Push to activate one of the attenuators.

➧Push [10dB] to activate the 10 dB attenuator.

➧Push [20dB] to activate the 20 dB attenuator.

➧Push [10dB] + [20dB] to activate the 30 dB attenuator. •10 dB and 30 dB attenuator cannot be used below 500 kHz.

!4AUDIO PEAK FILTER SWITCH [APF] (p. 15)

➥Push momentarily to toggle the audio peak filter circuit ON and OFF.

•Use the [APF] control to adjust the center of the audio peak passband.

➥When the audio peak filter circuit is ON, push for 1 sec. to toggle the filter setting between normal and narrow.

•‘Narrow’ is available for SSB, CW and AM only.

!5SPEECH/LOCK SWITCH [SPCH/LOCK]

➥Push momentarily to activate the voice synthesiz- er function and have the displayed frequency announced.

•An optional UT-102 SPEECH SYNTHESIZER UNIT is nec- essary to activate the voice synthesizer function (p. 38).

•Automatic announcement at signal detection during scan is available. Refer to the “REC SPCH” item on

p. 31 for details.

➥Push for 1 sec. to activate the lock function (p. 12).

•Push for 1 sec. again to cancel the lock function.

•The lock function action can be selected in set mode to cover the main dial only, or to cover both the main dial and front panel switches.

!6TUNING STEP SWITCHES [TS▲]/[TS▼] (p. 12)

Select the tuning step for the main dial. Push [TS▲] to select a larger tuning step; push [TS▼] to select a smaller tuning step.

•10 Hz, 50 Hz, 100 Hz, 1 kHz, 2.5 kHz, 5 kHz, 9 kHz, 10 kHz, 12.5 kHz, 20 kHz, 25 kHz, 100 kHz and 1 MHz are selectable.

•Programmable tuning steps can be set between 0.5 and

199.5 kHz.

➠To set programmable tuning steps, enter the desired steps via the keypad, then push [TSY]or [TSZ].

!7MAIN DIAL

Changes the operating frequency, set mode contents, etc.

!8BRAKE ADJUSTMENT SCREW Adjusts the main dial tension.

!9FUNCTION DISPLAY (p. 6)

Shows the selected frequency, mode, memory name, etc.

@0S-METER

➥Shows the strength of the received signal.

➥Shows the squelch threshold level when the [SQUELCH] is rotated past the center position.

2

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Contents IC-r8500 Explicit Definitions Accessories included with the IC-R8500 QtyTable of Contents Panel Description ➋ SLEEP/SET Switch SLEEP/SETFront panel ➎ Headphone Jack Phones@0S-METER 5SPEECH/LOCK Switch SPCH/LOCK7MAIN Dial @7SCAN Switches Scan Scan SET Auto p Skip pPrio p DLY D/S pRear panel 9RECEIVE Indicator 7ATTENUATOR IndicatorsFunction display MHz kHzConnections Mounting installationLocation Receiver standRequired connections TYPE-N Connector Installation Example Using a long wire antenna for HF bandsPL-259 Connector Installation Example Antenna connection GroundingTape recorder connections Connecting to a PCTransceive function Data demodulation terminalUsing the keypad Frequency SettingExample Setting the Frequency Using the Keypad Read me firstSelecting a tuning step Using the main dialSetting the programmable tuning step Setting the lock function coverageReceive Functions Initial settingsMode selection Squelch function Center indicatorFunctions for FM Functions for SSB/CWNoise blanker BFO adjustmentAudio peak filter Dagc functionData communications For high speed data 9600 bps reception in FM modeConnections Receiving methodMemory Channels Bank Initial Contents UsageGeneral Bank selectionUsing the keypad Using the M-CH selectorChannel 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 Operation ScansMemory scan Memory select scanDProgrammed scan Specifying skip channel and frequency Mode select functionPriority scan Specifying skip channelsTurning OFF the automatic function Automatic bank limit/skip functionsVoice scan control function Programming scan edge frequencies Scan speed/delay functionsScan resume condition OFF DLY ∞Scan speed Assigning a function to the DELAY/SPEED controlScan delay Operation Sleep TimerSelecting quick set mode SET ModeSelecting initial set mode Display Example Quick SET ModeQuick set mode items Initial set mode items Installed, you can select between English When the optional UT-102 Voice Synthesizer Unit isInstalled, you can select between faster or slower This item sets the data transfer rate. When AutoRS-232C socket Remote jack Connector InformationIf OUT jack AGC OUT jackREC Remote jack DC 13.8 V and DC in socketsREC OUT jack Phones jackCommand table Control CommandsData format Basic format from PC to IC-R8500‘OK’ message from IC-R8500 to PC Memory channel contents set & write 1A‘NG’ message from IC-R8500 to PC Special bank number and channels bnMaintenance ➂Replace the top cover Optional InstallationsCR-293HIGH Stability Crystal Unit TV-R7100 specifications OperationGeneral TV receiverTroubleshooting Memory Channels Scan Problem Possible Cause Solution Receiver SpecificationsGeneral AH-7000 OptionsFL-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.
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