Icom IC-R8500 instruction manual DProgrammed scan

Page 27
AUTO CL&START
AUTO START

SCANS 6

DProgrammed scan

DAuto memory write scan

Programmed scan (and auto memory write scan) searches for signals within a specified frequency range, using the selected tuning step increments. The result is like an ‘automatic’ rotating of the main dial.

Preparation—setting the scan range:

Push and hold [PROG] to enter the ‘prog’ bank, then input the desired edge frequencies, mode and tuning steps. Refer to p. 27 for details.

Start/stop:

➀Set the [SQUELCH] control to the threshold point.

➁Push [PROG] to start the scan.

•“PROG” (and scan range number) appears in the bank name area.

➂Push [PROG] again to stop the scan.

✔Convenient:

Direct range selection—The desired programmed scan range can be selected using the keypad.

➪Push a numeral key before or after pushing the [PROG] key.

Programmed edges

 

Push [PROG]

FM

OFF DLY ∞

 

kHz

Skip scan release—Programmed scan skips all fre-

PROG0 *NONAME*

quencies specified as skip channels in all 1000 chan-

PROG appears

nels.

 

 

 

Auto memory write scan operates in the same way as programmed scan. However, when a signal is received, the received frequency is automatically written into a memory channel in the auto write bank.

Preparation—written memories condition:

Push and hold [AUTO] to enter the written memory setting condition, then rotate the main dial to select the condition.

: Previously written memories in the ‘Auto’ bank are saved, then frequencies are written into the next available channels.

: Previously written mem- ories in the ‘Auto’ bank are cleared, then frequencies are written into channels, starting from channel 0.

Start/stop:

➀Set the [SQUELCH] control to the threshold point.

➁Push [AUTO] momentarily or for 1 sec. to start the scan.

•CAUTION: Be sure the written memories condition is set as desired, otherwise previously written memories are cleared.

•“AUTO” (and scan range number) appear in the bank name area.

➂Push [AUTO] again to stop the scan.

 

AUTO bank

0

1234.567.00

1

1235.678.00

2

1235.890.00

3

4

1240.050.00

•

---------------

•

•

 

98

---------------

99

 

Push [AUTO]

FM

OFF DLY ∞

 

kHz

AUTO0

*NONAME*

✔Convenient:

AUTO appears

The same convenient functions are available as de- scribed above.

24

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Contents IC-r8500 Explicit Definitions Accessories included with the IC-R8500 QtyTable of Contents ➎ Headphone Jack Phones ➋ SLEEP/SET Switch SLEEP/SETPanel Description Front panel5SPEECH/LOCK Switch SPCH/LOCK 7MAIN Dial@0S-METER @7SCAN Switches Scan Scan SET DLY D/S p Skip pAuto p Prio pRear panel MHz kHz 7ATTENUATOR Indicators9RECEIVE Indicator Function displayReceiver stand Mounting installationConnections LocationRequired connections Antenna connection Grounding Using a long wire antenna for HF bandsTYPE-N Connector Installation Example PL-259 Connector Installation ExampleData demodulation terminal Connecting to a PCTape recorder connections Transceive functionRead me first Frequency SettingUsing the keypad Example Setting the Frequency Using the KeypadSetting the lock function coverage Using the main dialSelecting a tuning step Setting the programmable tuning stepInitial settings Mode selectionReceive Functions Functions for SSB/CW Center indicatorSquelch function Functions for FMDagc function BFO adjustmentNoise blanker Audio peak filterReceiving method For high speed data 9600 bps reception in FM modeData communications ConnectionsBank selection Bank Initial Contents UsageMemory Channels GeneralBank limit function Using the M-CH selectorUsing the keypad Channel selectionProgramming 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 Memory select scan ScansOperation Memory scanDProgrammed scan Specifying skip channels Mode select functionSpecifying skip channel and frequency Priority scanAutomatic bank limit/skip functions Voice scan control functionTurning OFF the automatic function OFF DLY ∞ Scan speed/delay functionsProgramming scan edge frequencies Scan resume conditionAssigning a function to the DELAY/SPEED control Scan delayScan speed Operation Sleep TimerDisplay Example Quick SET Mode SET ModeSelecting quick set mode Selecting initial set modeQuick set mode items Initial set mode items This item sets the data transfer rate. When Auto When the optional UT-102 Voice Synthesizer Unit isInstalled, you can select between English Installed, you can select between faster or slowerAGC OUT jack Connector InformationRS-232C socket Remote jack If OUT jackPhones jack DC 13.8 V and DC in socketsREC Remote jack REC OUT jackBasic format from PC to IC-R8500 Control CommandsCommand table Data formatSpecial bank number and channels bn Memory channel contents set & write 1A‘OK’ message from IC-R8500 to PC ‘NG’ message from IC-R8500 to PCMaintenance ➂Replace the top cover Optional InstallationsCR-293HIGH Stability Crystal Unit TV receiver OperationTV-R7100 specifications GeneralTroubleshooting Memory Channels Scan Problem Possible Cause Solution Specifications GeneralReceiver AD-55/A/V AC Adapter OptionsAH-7000 FL-52ACW Narrow Filter 455 kHz 500Hz/-6 dBCount 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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