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IC-78 HF Transceiver

IC-78 HF Transceiver
IC-78 HF Transceiver
Brand: Icom
Product Code: IC-78
Availability: In Stock
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Reliable Straight Forward HF Communications
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The IC-78 is a high performance HF transceiver. Innovative features such as 99 memory channels, high C/N ratio, direct channel entering, data communication capabilities and more, offer easy operation for anyone. All these features come in a compact, rugged package that can be conveniently used in a base station or in a vehicle, as you prefer.

Durable, powerful construction

The IC-78 delivers a powerful 100 W of output power, providing the talk power you need to reach the most distant locations. Its one-piece, die-cast aluminum construction combined with a large heat sink, helps keep internal temperatures down and ensures that operation is stable at high duty cycles. And its compact size of 240(W) × 95(H) × 239(D) mmmakes installation easy.
* 97/16(W) × 33/4(H) × 913/32(D) in.

Simple operation

The IC-78 is equipped with a large easy-to-read LCD. A minimum number of switches and controls allow for superior feature selectability. Keys access functions directly - there's no secondary function key. You can enter your operating frequency*, or memory channel number directly from the 10-key pad.
* depending on version

Ample 99 channels with 8-digit channel name capability

An affordable 99 duplex memory channels are available for storing individual transmit and receive frequencies, operating mode, filter setting, as well as 8-character channel names. You can enter channel assignments easily from the 10-key pad. In addition, an extra 1 call memory is available for storing the most often used, or most important frequency. An independent, one-touch recall switch is available.

Superior basic performance

A 4-element system is employed for the 1st receive mixer, providing superior receive IMD, especially from in-band, nearby 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.

Front mounted loud speaker

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.

High frequency stability

When the optional CR-338 HIGH STABILITY CRYSTAL UNIT is installed, it allows up to ±0.5 ppm of extremely high stable operation.

Flexible filter selection

An optional IF filter can be installed into the transceiver, providing 5 passband widths selectable in SSB, CW or RTTY modes.

VFO mode operation*

For continuous frequency operation, VFO mode operation* capability is available. It is convenient when searching for signals, around the programmed frequencies, such as short wave broadcasts, etc.
* depending on version

Superior features support serious communications

Direct channel selection

A 10-key pad has been adopted on the front panel. A channel number, or an operating frequency*, can be entered from the keypad directly. Also, memory channel editing is possible. A large channel selector and up/down keys are available to suit your operating style for your convenience. Total and simple operation is provided!
* depending on version

Cloning capability

Programmed data cloning capability between transceivers is available, so that an identical transceiver setting can be made immediately.

Built-in 2-tone alarm*

The 2-tone alarm for an emergency signal transmission is built-in*. Independent tone switch is adopted for quick and simple emergency calls.
* depending on version

Data communications

In addition to the current voice and key operation, FSK (Frequency Shift Keying) type RTTY mode is available. By connecting a terminal unit or terminal node controller to the ACC socket on the rear panel, data acquisition and text-base file transfers and other data communication can be made. On RTTY, shift width, tone frequencies and polarization are also selectable.

Noise blanker

To reduce pulse-type noise, a level adjustable noise blanker is built-in. Various levels of pulse-type noise, such as from car ignitions, etc., can be reduced.

Pre-amp. and attenuator

A pre-amplifier and an RF attenuator are adopted for more pleasant reception. Convenient when weak signals or extremely strong signals are received, to present better quality readability.

SQL/RF gain controller

In addition to the squelch control, an RF gain control is available, and the controller 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. The SQL/RF GAIN controller action is selectable from squelch only, RF gain only or combined, in the SET mode according to your operating style and mode.

Other features

  • Built-in mic. compressor increases average talk power
  • Complete CW features
  • Variety of scanning function types
  • IF shift interference rejection
  • Built-in antenna tuner control circuit and selectable antenna tuner
  • Hand microphone is supplied
  • VOX capability

Specifications

General

Frequency range

Rx

Tx

 

0.030-29.999999 MHz*1

1.6-29.999999 MHz*2

*1 Guaranteed range: 0.5-29.999999 MHz
*2 Not guaranteed for some frequency bands
Mode USB, LSB, CW, RTTY (FSK), AM
Number of memory Ch. 99 (duplex) + 1 call channel
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)

Rx Stand-by 1.3 A
  max audio 2.0 A
 Tx 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 -46 dB below peak output power
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
Receive system Double-conversion superheterodyne

Sensitivity (10 dB S/N)

  SSB, CW, RTTY

 

 AM

 

0.16 µV (1.6-29.999999 MHz)

(0.5 µV at 12 dB SINAD)

13 µV (0.5-1.599999 MHz)

2 µV (1.6-29.999999 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 (1.6-29.999999 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 fuse

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