8 SET MODE

Quick set mode items

Initial set mode items

 

 

 

DIMMER

 

 

This item toggles the intensity of the display back-

HIGH

LOW

lighting between high or low.

Bright backlighting

Dark backlighting.

 

(default).

 

 

 

 

BEEP

A beep sounds each time a switch is pushed for con- firmation. This function can be turned OFF for silent operation.

ON

OFF

Confirmation beeps

Confirmation beeps

ON (default).

OFF.

LOCK

This item sets the lock function to electronically lock the main dial only or both the main dial and the panel switches.

DIAL

PANEL

Only the main dial

Both the main dial and panel

can be locked (default).

switches can be locked.

AUTO TS

This item sets the auto tuning speed. The main dial normally changes the frequency [400] [tuning step]/ revolution. When auto tuning speed is turned on this increases to [2000] [tuning step]/revolution during quick rotation of the dial.

ON

OFF

The auto tuning speed

The auto tuning speed

function is ON (default).

function is OFF.

HF ANT

This item sets the active HF antenna connector on the rear panel. Either the 50 Ω (SO-239 coaxial) or 500 Ω (phono RCA connector) can be activated.

50 500

The SO-239 antenna con- The RCA (phono) connector nector is activated (default). is activated.

REC REMO

This item activates/deactivates the REC REMOTE

ON

OFF

jack on the front panel. When ON is selected, the

The REC REMOTE jack

The REC REMOTE jack has

[REC REMOTE] jack is at a “low” level when the

can be used (default).

no function and no relay

squelch opens via the internal relay.

 

switching sound is heard.

 

 

 

 

 

 

REC SPCH

 

 

When the optional UT-102 VOICE SYNTHESIZER is

ON

OFF

installed and scan is in use, the detected frequency

The detected frequency is

The optional voice synthe-

is announced each time scan pauses, regardless of

announced when scan

sizer activates via the

the [SPCH/LOCK] switch. This announcement can

pauses (default).

[SPCH] switch only.

be turned ON and OFF.

 

 

 

 

 

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Icom IC-R8500 instruction manual Quick set mode items Initial set mode items

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.