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HF ALL BAND TRANSCEIVER - Icom

HF ALL BAND TRANSCEIVER . Front mounted loud speaker Microphone compressor The IC-718 has a speaker mounted on The IC-718 has a low distrotion micro- the front panel. With the speaker facing phone compressor. This feature com- the operator, audio sounds can be clearly presses microphone audio input to heard without impediment during opera- increase average audio output level. The tion. It is no longer necessary to manually result is, that talk power is increased. This increase the volume to try and capture function is effective for long distance com- audio sounds. munication, or when propagation condi- tions are poor. Superior basic performance RF gain control The IC-718 has MHz*.

Flexible fi lter selection An optional IF filter can be installed into the transceiver to suit your operating pref-erence. High frequency stability

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  High, Frequency, Transceiver, High frequency

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Transcription of HF ALL BAND TRANSCEIVER - Icom

1 HF ALL BAND TRANSCEIVER . Front mounted loud speaker Microphone compressor The IC-718 has a speaker mounted on The IC-718 has a low distrotion micro- the front panel. With the speaker facing phone compressor. This feature com- the operator, audio sounds can be clearly presses microphone audio input to heard without impediment during opera- increase average audio output level. The tion. It is no longer necessary to manually result is, that talk power is increased. This increase the volume to try and capture function is effective for long distance com- audio sounds. munication, or when propagation condi- tions are poor. Superior basic performance RF gain control The IC-718 has MHz*.

2 General coverage receive capability. A RF gain control is combined with the 4-element system is employed for the 1st squelch control. The RF gain adjusts mini- The HF bands allow you to communicate over long dis- Flexible filter selection Selectable antenna tuner receive mixer, providing superior receive mum response receiver gain, and ignores IMD, especially from in-band near-by in- signals weaker than the pre-set level tances covering many km even to the other side of the An optional IF filter can be installed into Either the AT-180 or AH-4 optional an- the TRANSCEIVER to suit your operating pref- tenna tuner can be used with the IC-718.

3 Terfering signals. A well-designed dou- providing pleasant stand-by, or scanning. world. With the superior performance found in the IC-718 erence. to suit your installing conditions, or oper- ble-conversion system to help minimize image and spurious responses for bet- Ample CW features such as wide dynamic range, high C/N ratio, and full duty [dB] ating style. Of course, the AH-4 control 0. circuit is built into the IC-718. operation you will find making these contacts easy. Expe- AF OUTPUT. ter signal fidelity, is also built-in. A newly An electronic keyer with a variable dot/ 10 FL-257. designed PLL circuit has been adopted to improve C/N ratio characteristics.

4 The dash ratio ( :1 to :1) control is built-in. rience the combination of the latest RF and digital tech- 20. 30. Simple operation By simply connecting a paddle, easy CW. combination of the 4-element system nology, along with the size and simplified operation. You 40. FL-53A. The IC-718 is equipped with a minimum operation can be made. The CW pitch mixer and new PLL circuit allows superior will see the IC-718 will be the most practical rig you will 50. number of switches and controls for supe- and the key speed are also variable from basic performance as that of a commer- 60. rior feature selectability. The 10-key pad 300 900 Hz, 6 60 wpm, respectively.

5 Of ever own. 70. cial grade TRANSCEIVER . FL-222. on the front panel to directly enter an op- course, full break-in capability is available 2 kHz 1 kHz CENTER +1 kHz +2 kHz *Guaranteed range: MHz erating frequency , or a memory channel with the adjustable break-in delay. number. The auto tuning steps function Optional DSP capability high frequency stability VOX operation helps quick tuning activates when turn- When the optional CR-338 high Stabil- ing the dial quickly. And the band stacking With the optional UT-106* installed you gain A VOX (voice operated transmission) is in- ity Crystal Unit is register is very convenient when changing AF DSP capabilities.

6 The DSP includes cluded with the IC-718. It provides hands- installed, you get a operating bands. the following to give free operation by detecting audio signals very high frequency you superior receive quality in your shack. from the microphone. It's easy! stabilit y of Digital S/RF meter ppm. * Already installed with Built-in multi functional digital S/RF meter some versions. indicates signal strength level while receiv- ing, and either transmit output power, ALC. Noise reduction: level or VSWR ratio while transmitting. Pulls desired AF signals from noise. Out- standing S/N ratio is achieved, providing Optional automatic tuning antenna clean audio in SSB and AM.

7 The optional vehicle mount automatic tun- Automatic Notch filter: ing antenna, AH-740 provides relay-driven Comparison of receive signal speaker output high -speed tuning covering from to 30. MHz. Its IP55 dust-protection and water Noise reduction OFF. jet resistance ensures reliable operation Noise reduction ON. in harsh weather conditions. Other features USB, LSB, CW, RTTY (FSK) and AM. This automatically minimizes beat signals modes are built-in and heterodynes while preserving the re- Level adjustable noise blanker ceive signal. Also, the notch frequency is RF attenuator and Pre-amplifier automatically adjusted to follow interfering Variety of scanning function types beat signals for example, reducing in- Total 101 memory channels are available terference from RTTY signals during SSB Hand microphone is supplied, and operation.

8 Interference rejection IF shift To reject interference, the IC-718 has an IF shift function which shifts the center frequency of the IF passband electroni- cally to reduce adjacent interference. HF ALL BAND TRANSCEIVER . SPECIFICATIONS. GENERAL RECEIVER. Receiver MHz*1 Receiver system Double-conversion superheterodyne frequency *2, *2, , Sensitivity (at 10 dB S/N) MHz MHz coverage Transmitter , , , SSB/CW/RTTY V. , , MHz AM 13 V 2 V. *1 Guaranteed range: MHz. *2 Varies according to version. Sensitivity for RED versions Mode USB, LSB, CW, RTTY (FSK), AM MHz MHz (#43,#63) (at 12 dB SINAD). Number of channels 101 (99 regular, 2 scan edges) SSB (BW= kHz) 10 dB V emf 0 dB V emf frequency resolution 1 Hz AM (BW=6 kHz, Mod=60%) 16 dB V emf 6 dB V emf Less than 200 Hz from 1 min.

9 To 60 min. after power ON. Squelch sensitivity (Threshold) Less than V (SSB). frequency stability Less than 30 Hz/hour at +25 C (+77 F) after that. Selectivity More than Less than Less than 350 Hz between 0 C to +50 C (+32 F to +122 F) SSB, CW, RTTY kHz/ 6 dB kHz/ 60 dB. Antenna connectors SO-239 (50 unbalanced) AM kHz/ 6 dB 20 kHz/ 40 dB. Power supply requirement V DC 15% Spurious and image rejection More than 70 dB ( MHz). Power Tx 20 A (at 100 W output power) Audio output power More than W (at 10% distortion with an 8 load). consumption Rx A (Standby), A (Maximum audio) External speaker connector 2-conductor (d) mm (1 8 ) /8.

10 Operating temperature range 10 C to +60 C; 14 F to 140 F All stated specifications are subject to change without notice or obligation. Dimensions (W H D). 240 95 239 mm; in (projections not included). Weight (approximately) kg; lb Supplied accessories: (May differ depending on version). TRANSMITTER. Hand microphone DC power cable Spare fuses SSB/CW/RTTY 2 100 W. Output power AM 2 35 W Applicable Military Specifications Modulation SSB Balanced modulation MIL 810 F. system AM Low level modulation Standard Method Procedure Spurious emissions Less than 50 dB below peak output power Temperature Shock I. Rain Drip* III. Carrier suppression More than 40 dB Vibration I.


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