6 SCANS

Operation

DMemory scan

All memory channels (except skip channels) in the

 

Select

selected bank are scanned at up to 40 ch/sec.

 

Skip

Mch 2

Mch 3

 

 

Mch 4

Push [M-CH• BANK] or [ENT • BANK] to select

 

 

 

the desired bank.

Mch 1

 

• Direct selection is also available as below.

 

Select Mch 5

Set the [SQUELCH] control to the threshold point.

Push [MEMO] to start the scan.

MEMO” appears in the bank name area.

Push [MEMO] again to stop the scan.

Convenient:

Direct bank selection—Memory scan can be started in a specific bank without using [BANK/]:

Enter one or two digits for the bank number, then push [MEMO].

Bank selection during memory scan—The selected bank can be changed without stopping the scan:

Enter one or two digits for the bank number, then push [ENT].

Bank limit and skip scan release—When starting memory scan, the bank limit and channel skip functions are activated automatically. Refer to p. 26.

Mch 39

Mch 7

Mch 6

 

Select

 

 

 

 

Select

 

 

Push [MEMO]

FM

OFF DLY

 

kHz

 

MEMO

MEMO appears

DMemory select scan

Memory select scan allows you to increase scan effi- ciency by searching for specified channels only, thereby increasing the rate at which the scan cycles through the memory channels. Set high priority chan- nels as ‘select’ channels (memory select scan searches for signals on these channels) while leaving out lower priority channels.

Preparation—specifying select channels:

Select the channel you want to specify as a ‘select’ channel, then push [SEL] for 1 sec.

Start/stop:

Select the desired bank using [M-CH• BANK] or [ENT • BANK].

Set the squelch control to the threshold point.

Push [SEL] momentarily to start scan.

SEL” appears in the bank name area.

Push [SEL] again to stop the scan.

NOTE: Memory select scan does not start unless 2 or more channels in the bank are specified as select channels.

Convenient:

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

Select

 

 

Mch 3

Skip

 

 

Mch 2

Mch 4

 

 

 

 

 

 

 

 

Mch 1

Select

 

Select

 

 

 

Mch 5

 

 

 

 

 

 

 

 

Mch 39

Mch 7

Mch 6

 

 

 

 

 

Select

 

 

 

 

 

 

 

 

Select

 

 

 

Push [SEL]

FM

OFF DLY

kHz

SEL

SEL appears

23

Page 26
Image 26
Icom IC-R8500 instruction manual Scans, Operation, Memory scan, Memory select scan

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.