14 SPECIFICATIONS

■General

• Frequency coverage

:

Version

 

 

Frequency Coverage (MHz)

 

 

 

 

U.S.A.

 

0.10000 –

823.99999

 

 

 

 

 

849.00001–

868.99999

894.00001–

1999.99999*

 

 

 

 

 

 

 

Europe

 

0.10000– 1999.99999*

 

 

 

 

 

France

 

0.10000–

87.50000

108.00000–

1999.99999*

 

 

 

*Specifications guaranteed 0.1–1000 MHz and 1240–1300 MHz

 

• Mode

: FM (normal/narrow), AM (wide/normal/narrow), SSB (USB/LSB) CW (normal/narrow*), WFM

 

*Optional FL-52A is required.

 

 

 

 

• Number of memory channels

: 1000 (plus 20 scan edges and 1 priority channel)

 

 

• Antenna connector

: Below 30 MHz

SO-239 (50 Ω )/Phono (500 Ω )

 

 

 

Above 30 MHz

Type-N (50 Ω )

 

 

 

• Usable temperature range

: –10°C to +50°C (+14°F to +122°F)

 

 

 

• Frequency stability

: Below 30 MHz

±100 Hz (±20 Hz*)

 

 

 

 

Above 30 MHz

± 0.0003 % (±0.00006%*)

 

 

*When an optional CR-293 is installed.

•Power supply requirement

•Current drain (at 13.8 V DC)

•Dimensions (projections not included)

•Weight

•Intermediate frequencies

■Receiver

•Receive system

•Sensitivity

• Squelch sensitivity

: 13.8 V DC ±15% (negative ground)

117 V AC (U.S.A. version with supplied AD-55A)

230 or 240 V AC (other versions with the optional AD-55/V)

: Standby 1.8 A

Max. audio 2.0 A

:287(W) ⋅ 112(H) ⋅ 309(D) mm; 115⁄16(W) ⋅ 413⁄32(H) ⋅ 123⁄16(D) in

:7.0 kg (15.4 lb)

:

Frequency band

 

 

1st

2nd

 

 

3rd*

 

Unit: MHz

 

 

 

 

0.1–

29.99999

 

48.8

10.7

 

 

0.455

 

 

 

 

 

 

 

 

30.0–

499.99999

 

778.7

10.7

 

 

0.455

 

 

 

 

 

 

 

 

500.0– 1024.99999

 

266.7

10.7

 

 

0.455

 

 

 

 

 

 

 

 

1025.0– 1999.99999

 

Utilizes converter method:

 

 

 

 

 

 

 

 

 

 

 

Local freq.: 500, 1000 or 1010 MHz

 

*Except WFM.

 

 

 

 

 

 

 

 

 

 

: Superheterodyne

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequency band (MHz)

 

SSB/CW

AM

 

AM-N

 

AM-W

 

FM

WFM

 

 

 

0.1–0.49999

 

 

1.0 µV

6.3 µV

 

 

—

 

—

 

—

—

 

 

 

0.5–1.79999

 

 

2.0 µV

13.0 µV

 

 

—

 

—

 

—

—

 

 

 

1.8–1.99999

 

 

0.25 µV

3.2 µV

 

2.5 µV

 

—

 

—

—

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.0–27.99999

 

 

0.2 µV

2.5 µV

 

2.0 µV

 

—

 

—

—

 

 

 

28.0–29.99999

 

 

0.2 µV

2.5 µV

 

2.0 µV

 

—

 

0.5 µV

—

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30.0–999.99999

 

 

0.32 µV

2.5 µV

 

2.0 µV

 

3.2 µV

 

0.5 µV

1.4 µV

 

 

 

1240.0–1300.00000

 

 

0.32 µV

2.5 µV

 

2.0 µV

 

3.2 µV

 

0.5 µV

2.0 µV

 

 

:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequency band

SSB/CW/AM-N

AM/AM-W

 

 

 

FM

 

WFM

 

(MHz)

 

threshold

tight

threshold

 

tight

threshold

 

tight

threshold

 

tight

 

1.8–29.99999

10 µV

 

320 mV

0.5 µV

320 mV

 

0.5 µV*

320 mV*

 

—

 

—

 

30–1000

4.5 µV

 

320 mV

0.4 µV

320 mV

 

0.4 µV

320 mV

 

4.5 µV

320 mV

 

1240–1300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*FM mode can only be used above 28 MHz.

• Selectivity

: WFM

More than 150 kHz/–6 dB

 

FM/AM-W

More than 12 kHz/–6 dB

 

FM-N/AM

More than 5.5 kHz/–6 dB

 

AM-N/SSB/CW

More than 2.2 kHz/–6 dB

 

CW narrow*

More than 500 Hz/–6 dB

 

*Optional FL-52A is required.

• Spurious and image rejection ratio

: Below 30 MHz

More than 60 dB

 

30–1000 MHz

50 dB (typical)

 

1240–1300 MHz

 

• Audio output power

: More than 2.0 W at 10% distortion with an 8 Ω load

• IF shift variable range

: More than ±1.2 kHz

 

• External speaker connector

: 2-conductor 3.5 mm (1⁄8")/4–8 Ω

All specifications are subject to change without notice or obligation.

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Icom IC-R8500 instruction manual Specifications, General, Receiver
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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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