Icom IC-718 SSB/HF

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Product Description

Icom IC-718 SSB/HF

The Radio Rig Icom IC-718 SSB / Radio HF bands From ICOM allow you to communicate over long distances covering many km even to the other side of the world. With the superior performance found in the IC-718 such as wide dvnamic range, high C/N ratio, and full duty operation you will find making these contacts easy. Experience the combination of the latest RF and digital technology, along with the size and simplified operation. You will see the IC-718 will be the most practical rig you will ever own.

Front Mounted Loud Speaker

The Radio Rig Icom IC-718 SSB/HF has a speaker mounted on the front panel. With the speaker facing the operator, audio sounds can be clearly heard without impediment during operation. It is no longer necessary to manually increase the volume to try and capture audio sounds.

Superior Basic Performance

The ICOM IC-718 has 0.03-29.999999 MHz* general coverage receive capability. A 4-element system is employed for the 1st receive mixer, providing superior receive IMD, especially from in-band near-by interfering signals. A well-designed double-conversion system to help minimize image and spurious responses for better signal fidelity, is also built-in. A newly designed PLL circuit has been adopted to improve C/N ratio characteristics. The combination of the 4-element system mixer and new PLL circuit allows superior basic performance as that of a commercial grade transceiver.

DSP Capability*

The DSP includes the following to give you superior receiver quality in your shack, vehicle or during DX’pedition.

Noise reduction:

Speaker Output Comparison

Pulls desired AF signals from noise. Outstanding S/N ratio is achieved, providing clean audio in SSB, AM and FM.

Automatic Notch filter:

This automatically minimizes beat signals and heterodynes while preserving the receive signal. Also, the notch frequency is automatically adjusted to follow interfering beat signals – for example, reducing interference from RTTY signals during SSB operation.

Interference Rejection – IF Shift

To reject interference, the IC-718 has an IF shift function which shifts the center frequency of the IF passband electronically to reduce adjacent interference.

Microphone Compressor

This feature compresses microphone audio input to increase average audio output level. The result is, that talk power is increased. The compression level is adjustable for your preference. This function is effective for long distance communication, or when propagation conditions are poor.

RF Gain Control

RF gain control is combined with the squelch control. The RF gain adjusts minimum response receiver gain, and ignores signals weaker than the pre-set level – providing pleasant stand-by, or scanning.

Ample CW Features

An electronic keyer with a variable dot/dash ratio (2.8:1 to 4.8:1) control is built-in. By simply connecting a paddle, easy CW operation can be made. The CW pitch and the key speed are also variable from 300-900 Hz, 6-60 wpm, respectively. Of course, full break-in capability is available with the adjustable break-in delay.

VOX Operation

A VOX (Voice operated transmission) is included with the IC-718. It provides handsfree operation by detecting audio signals from the microphone. It’ s easy! Flexible filter selection

Flexible Filter Selection

An optional IF filter can be installed into the transceiver to suit your operating preference.

High Frequency Stability

When the optional CR-338 HIGH STABILITY CRYSTAL UNIT is installed, you get a very high frequency stability of ±0.5 ppm.

Selectable Antenna Tuner

Either the optional antenna tuner unit, AT-180 or AH-4 can be used with the IC-718 to suit your installing conditions, or operating style. Of course, the AH-4 control circuit is built into the IC-718.

Simple Operation

The IC-718 is equipped with a minimum number of switches and controls for superior feature selectability. The 10-key pad on the front panel for entering directly an operating frequency, or a memory channel number. The auto tuning steps function helps quick tuning is activate when turning the dial quickly. And the band stacking register is very convenient when changing operating bands.

Digital S/RF Meter

Built-in multi functional digital S/RF meter indicates signal strength level while receiving, and either transmit output power, ALC level or VSWR ratio while transmitting.

Optional Voice Synthesizer

A clear, electronically-generated voice announces operating frequency, mode and receiving signal strength level when the optional voice synthesizer unit, UT-102, is installed.

Other Features

  • USB, LSB, CW, RTTY(FSK) and AM modes are built-in
  • Level adjustable noise blanker
  • RF attenuator and Pre-amplifier
  • Variety of scanning function types
  • Total 101 memory channels are available
  • Hand microphone is supplied, and more…

Specifications Icom IC-718 SSB/HF

General
Frequency Range
Rx
Tx
0.030-29.999999 MHz
1.800-1.999999 MHz
3.500-3.999999 MHz (varies with version)
7.000-7.300000 MHz
10.100-10.150000 MHz
14.000-14.350000 MHz
18.068-18.168000 MHz
21.000-21.450000 MHz
24.890-24.990000 MHz
28.000-29.700000 MHz
Mode USB, LSB, CW, RTTY (FSK), AM
No. of memory channels 101 (99 regular, 2 scan edges)
Frequency resolution 1 Hz
Frequency stability Less than ±200 Hz from 1 minute to 60 minutes after power on. After that rate of stability less than ±30 Hz/hr. at +25°C (+77°F). Temperature fluctuations 0°C to +50°C (+32°F to +122°F) less than ±350 Hz
Power supply requirement 13.8 V DC ±15% (negative ground)
Current drain

(at 13.8 V DC)
Receive
Transmit

Stand-by 1.3A
max audio 2.0A
max. power 20.0A
Usable temperature range -10°C to +60°C

(+14°F to +140°F)

Antenna connector SO-239 (50Ω)
Dimensions

(projections not included)

240mm (W) x 95mm (H) x 239mm (D);

97/16in (W) x 33/4in (H) x 913/32in (D)

Weight 3.8 kg; 8 lb 6 oz
ACC connector 13-pin
REMOTE connector 2-conductor 3.5 (d) mm; (1/8“)
Transmitter
Modulation system

SSB

AM

 

Balanced modulation

Low level modulation

Output power

SSB, CW, RTTY

AM

 

2-100W

2-40W

Spurious emissions Less than -50 dB below peak output power
Spurious frequency

below 30 MHz

above 30 MHz

 

-50dB

-60dB

Carrier suppression More than 40 dB
Unwanted sideband More than 50 dB
Microphone connector 8-pin connector (600Ω)
KEY connector 3 conductor 6.5 (d) mm (1/4“)
SEND connector Phono (RCA)
ALC connector Phono (RCA)
Receiver
Receiving system Double conversion superheterodyne
Sensitivity (10 dB S/N)

SSB, CW, RTTY

AM

 

0.16 µV (1.8-29.999999 MHz)

13 µV (0.5-1.799999 MHz)

2 µV (1.8-29.999999 MHz)

SQL sensitivity Less than 5.6 µV (SSB)
Selectivity

SSB, CW, RTTY

 

AM

 

More than 2.1 kHz/-6 dB

Less than 4.5 kHz/-60 dB

More than 6.0 kHz/-6 dB

Less than 20 kHz/-40 dB

Spurious and image rejection More than 70 dB (1.8-29.999999 MHz)
Audio output power

(at 13.8 V DC)

More than 2.0W at 10% distortion with an 8Ω load
RIT variable range ± 1200 Hz
PHONES connector 3-conductor 6.5 (d) mm (1/4“)
EXT SP connector 2-conductor 3.5 (d) mm (1/8″) / 8Ω

 

All stated specifications are subject to change without notice or obligation.

Supplied Accessories

  • Hand Microphone
  • DC Power Cable
  • Spare Fuses

 

 


Icom IC-718 – Manual


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