Icom IC-R8500 Connector Information, RS-232C socket Remote jack, If OUT jack, AGC OUT jack

Page 36

9 CONNECTOR INFORMATION

DRS-232C socket

13

1

25

14

DRemote jack

Outer

Inner 3.5 mm (diam.) 2-conductor

DIF OUT jack

Inner

Outer

RCA (phono) jack

DAGC OUT jack

Inner

Outer

RCA (phono) jack

DExternal speaker

Outer

Inner 3.5 mm (diam.) 2-conductor

Pin

Port name

Description

 

 

 

1

GND

Grounded.

 

 

 

2

RXD

Input port for CI-V format data; +12V/–12V.

 

 

 

3

TXD

Output port for CI-V format data; +12V/–12V.

 

 

 

4

RTS

Shorten these ports inside.

Can be connected to pin 8 (DCD) via the inter-

5

CTS

nal circuit board (‘coffee beans’).

 

 

 

 

 

6

DSR

NC; can be connected to pin 20 (DTR) via the

internal circuit board (‘coffee beans’).

 

 

 

 

 

7

GND

Grounded.

 

 

 

8

DCD

NC; can be connected to pins 4 and 5 (RTS/CTS)

via the internal circuit board (‘coffee beans’).

 

 

 

 

 

9–19

NC

No connection.

 

 

 

20

DTR

NC; can be connected to pin 6 (DSR) via the

internal circuit board (‘coffee beans’).

 

 

 

 

 

21–25

NC

No connection.

 

 

 

Pin

Port name

Description

 

 

 

Inner

REMOTE

Input/output port for CI-V format data; +5 V/0 V.

 

 

 

Outer

GND

Grounded.

 

 

 

 

 

 

Pin

Port name

Description

 

 

 

 

 

Frequency: 10.7 MHz

Inner

IF OUT

Output level: –60 dBm (with –50 dBm input from

 

 

an antenna connector in WFM mode)

 

 

 

Outer

GND

Grounded.

 

 

 

 

 

 

Pin

Port name

Description

 

 

 

 

 

Output voltage: 1 to –2.4 V DC

 

AGC out

(signal strength weak to strong)

 

 

Output impedance: 2.2 MΩ

Inner*

 

 

 

Output level: 200 mV rms (at Mod.=1 kHz, Dev.=3.5 kHz)

 

Audio detect

Output impedance: 4.7 kΩ

 

• Before the frequency de-emphasis stage.

 

 

• Usable for FM only (not including WFM).

 

 

 

Outer

GND

Grounded.

 

 

 

*Output is selectable with an internal jumper pin (p. 16).

 

 

 

Pin

Port name

Description

 

 

 

Inner

AF out

Output level: More than 2 W

Output impedance: 4–8 Ω

 

 

 

 

 

Outer

GND

Grounded.

 

 

 

33

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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 Phones5SPEECH/LOCK Switch SPCH/LOCK 7MAIN Dial@0S-METER @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 coverageInitial settings Mode selectionReceive Functions 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 functionProgramming Copy and paste memory editingClearing Channel/bank names Channel name programmingBank name programming Assigning channel numbers Deleting memory channelsTo rearrange bank channel assignments Adding/inserting memory channels ➂ Rotate M-CH to select the following➃ Push Bank for 1 sec. to perform the selected operation Scans OperationMemory scan Memory select scanDProgrammed scan Mode select function Specifying skip channel and frequencyPriority scan Specifying skip channelsAutomatic bank limit/skip functions Voice scan control functionTurning OFF the automatic function Scan speed/delay functions Programming scan edge frequenciesScan resume condition OFF DLY ∞Assigning a function to the DELAY/SPEED control Scan delayScan speed 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 Specifications GeneralReceiver 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.
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