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.
The DSP includes the following to give you superior receiver quality in your shack, vehicle or during DX’pedition.
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.
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.
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.
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.
- 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
3.500-3.999999 MHz (varies with version)
|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)|
(at 13.8 V DC)
|Usable temperature range||-10°C to +60°C
(+14°F to +140°F)
|Antenna connector||SO-239 (50Ω)|
(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|
|REMOTE connector||2-conductor 3.5 (d) mm; (1/8“)|
Low level modulation
SSB, CW, RTTY
|Spurious emissions||Less than -50 dB below peak output power|
below 30 MHz
above 30 MHz
|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)|
|Receiving system||Double conversion superheterodyne|
|Sensitivity (10 dB S/N)
SSB, CW, RTTY
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)|
SSB, CW, RTTY
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.
- Hand Microphone
- DC Power Cable
- Spare Fuses
Icom IC-718 – Manual
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