The optional vehicle mount automatic tun-ing antenna, AH-740 provides relay-driven high-speed tuning covering from 2.5 to 30 MHz. Digital S/RF meterīuilt-in multi functional digital S/RF meter indicates signal strength level while receiv-ing, and either transmit output power, ALC level or VSWR ratio while transmitting. And the band stacking register is very convenient when changing operating bands. The auto tuning steps function helps quick tuning activates when turn-ing the dial quickly. The 10-key pad on the front panel to directly enter an op-erating frequency, or a memory channel number. The IC-718 is equipped with a minimum number of switches and controls for supe-rior feature selectability. Of course, the AH-4 control circuit is built into the IC-718. Selectable antenna tunerĮither the AT-180 or AH-4 optional an-tenna tuner can be used with the IC-718 to suit your installing conditions, or oper-ating style. When the optional CR-338 High Stability Crystal Unit is installed, you get a very high frequency stability of ☐.5 ppm. Flexible Filter SectionĪn optional IF filter can be installed into the transceiver to suit your operating preference. 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. It’s easy! Interference rejection- IF shift It provides hands-free operation by detecting audio signals from the microphone. VOX OPERATIONSĪ VOX (voice operated transmission) is included with the IC-718. Of course, full break-in capability is available with the adjustable break-in delay. The CW pitch and the key speed are also variable from 300–900 Hz, 6–60 wpm, respectively. By simply connecting a paddle, easy CW operation can be made. AMPLE CW FEATURESĪn electronic keyer with a variable dot/dash ratio (2.8:1 to 4.5:1) control is built-in. The RF gain adjusts mini-mum response receiver gain, and ignores signals weaker than the pre-set level- providing pleasant stand-by, or scanning. ![]() RF gain control is combined with the squelch control. This function is effective for long distance com-munication, or when propagation conditions are poor. The result is, that talk power is increased. This feature com-presses microphone audio input to increase average audio output level. The IC-718 has a low distrotion micro-phone compressor. The DSP includes the following to give you superior receive quality in your shack. With the optional UT-106* installed you gain AF DSP capabilities. *Guaranteed range: 0.5–29.999999 MHz OPTIONAL DSP CAPABILITY The combination of the 4-element system mixer and new PLL circuit allows superior basic performance as that of a commercial grade transceiver. A newly designed PLL circuit has been adopted to improve C/N ratio characteristics. A well-designed double-conversion system to help minimize image and spurious responses for bet-ter signal fidelity, is also built-in. ![]() A 4-element system is employed for the 1st receive mixer, providing superior receive IMD, especially from in-band near-by interfering signals. The IC-718 has 0.03–29.999999 MHz* general coverage receive capability. It is no longer necessary to manually increase the volume to try and capture audio sounds. With the speaker facing the operator, audio sounds can be clearly heard without impediment during opera-tion. The IC-718 has a speaker mounted on the front panel.
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