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IC-706MKII - HF/6m/2m Mobile/Base All Mode Transceiver

 

Quick Specs:
HF/6m/2m all mode transceiver
Base or Mobile
RX: 30 kHz-200 MHz
TX: all HF amateur bands + 6 meter and 2 meter amateur bands
Output power: 100 W HF and 6m (40 W AM), 20 W on 2m (8 W AM)
Modes: CW, USB, LSB, RTTY, AM, FM, WFM
Receiver sensitivity: see the table in detailed specifications

 

IC-706MKII Detailed Description

3 Step Selectable Passband Width
The IC-706MkII has improved passband width selection. A maximum of 2 optional crystal filter units can be installed, providing a total of 3 passband widths selectable in SSB, CW, or RTTY mode.

Tone Squelch Function is Available
The IC-706MkII has an optional tone squelch unit, UT-86, for FM mode operation: useful during 144 MHz band and 6 meter band operation. In addition, a programmable CTCSS subaudible tone and a 1750 Hz tone encoder are standard.

Simplified Operation
An individual band change key and a SUB DIAL simplify operation. The individual band change keys provide quick and easy QSY, while the SUB DIAL facilitates mobile operation and memory operation. Each band stores pre-amplifier/attenuator and tuner ON/OFF settings. In addition RIT variable range adjustment is more convenient because the SUB DIAL is used for RIT control.

Superior Audio Characteristics
The SSB filter is a newly designed FL-272 (2.4 kHz/-6dB, 4.8 kHz/-60db). A large 66 mm (d) speaker provides plenty of audio. Together they help the IC-706MkII provide superior receive and transmit audio characteristics.

Thermally Controlled Cooling Fan
The internal cooling fan is thermally controlled to reduce cooling fan noise during receiving.

Compact and Feather Light
The IC-706MkII is incredibly small with dimensions of 167(w) x 58(h) x 200(d) mm (6-9/16 x 2-9/32 x 7-7/8 inches). A mobile sized transceiver packed with base station features. Excellent performance allows this transceiver to be used as your main rig for the HF and VHF bands. Of course many will be tempted to use the IC-706 MkII for mobile operation and on DX'peditions. Whatever your choice you can't go wrong.

Detachable Front Panel
The IC-706MkII sports a detachable front panel. Both the main unit and detachable front panel have microphone connectors providing numerous mounting options in both a vehicle or a shack.

IF Shift Interference Rejection System
IF shift is effective to reduce adjacent frequency interference in SSB, and enables comfortable operation even under crowded band conditions, such as during contests. The IF shift setting condition is graphically indicated on the LCD.

Functions for CW Operations
--Electronic keyer with a variable weight control function.
--CW reverse function to reduce adjacent interference.
--CW pitch can be adjusted in the range of 300-900 Hz.
--CW narrow mode (optional CW narrow filter is required).
--Full break-in (QSK) is available.

Spectrum Scope Function
Sweeps ±14 steps from, the displayed frequency and plots received signal strength on the function display. This function is useful not only for seeking vacant channels during VHF/FM operation, but also for checking HF band conditions.

Narrow-FM Capability
Narrow-FM mode is becoming increasingly popular. Narrow-FM capability is available not only in the 10 M band, but also the 2 M band, allowing you to take maximum advantage of this operating style. Deviation is ±2.5 kHz for transmit and ±4 kHz for receive.

102 Memory Channels with Alphanumeric Names
The IC-706MkII has up to 102 memory channels. 99 channels are split memories that can memorize both transmit and receive frequencies individually. 2 channels are for programmed scan edges, and 1 channel is for call memory on the 144 MHz band. In addition, up to 9-character alphanumeric names can be programmed into each memory channel. This provides a convenient memory management system.

Dot-Matrix Display
The IC-706MkII's large LCD has a dot-matrix readout under the frequency display. By using the menu-function switch you can clearly read multi-function key descriptions on the LCD. Moreover, the graphical menu function indicates transmit frequency during split frequency operation, IF shift setting, spectrum scope indication, memory channel name indication, etc.

Voice Synthesizer
The optional voice synthesizer unit, UT-102, provides a unique speech function. A clear, electronically generated voice announces not only operating frequency and modes, but also the current S-meter level.

Optional Antenna Tuner
An optional, fully automatic antenna tuner, the AT-180, is available and covers the 3.5 MHz to 50 MHz bands. Style and size are matching with the IC-706MkII.

MORE OUTSTANDING FEATURES
--WFM mode for listening to FM broadcasting, etc.
--Digital S-meter with peak-hold function
--Variable SSB carrier-point
--Auto tuning step selection
--Speech compressor
--Built-in pre-amplifier
--RIT, VOX and noise blanker are standard
--Built-in CI-V serial communications port

 
Detailed Specifications

GENERAL

  • Frequency Coverage:
    • Receive
      0.030 - 200.000 MHz*
    • Transmit
      1.800-1.999 MHz*
      3.500-3.999 MHz*
      7.000-7.300 MHz*
      10.100-10.150 MHz
      14.000-14.350 MHz
      18.068-18.168 MHz
      21.000-21.450 MHz
      24.890-24.990 MHz
      28.000-29.700 MHz
      50.000-54.000 MHz *
      144.000-148.000 MHz *
      * Depending on version
  • Mode: USB, LSB, CW, RTTY (FSK), AM, FM, WFM (Rx only)
  • Number of memory ch. : 102 (99 regular, 2 scan edges, 1 call)
  • Antenna connector : SO-239x2 (for HF/50 MHz and 144 MHz)/50 ohms
  • Power supply requirement: 13.8 V ± 15% (negative ground)
  • Frequency stability: Less than ± 7ppm from 1 min. to 60 min. after power ON. After that rate of stability less than ± ppm/hr. at +25°C (+77°F). Temperature fluctuations 0°C to +50°C (+32°F to +122°F) less than +-5 ppm.
  • Current consumption: Transmit max. power 20 A; Receive standby 1.8 A max. audio 2.0 A
  • Usable temperature range : -10°C to 60°C (14°F to 140°F)
  • Dimensions:
    • 167(W) X 58(H) X 200(D) mm
    • 6 9/16(W) X 2 9/32(H) X 7 7/8(D) in
  • Weight: 2.45 kg (5 lb 6 oz)
  • CI-V connector: 2 conductor, 3.5 (d) mm (1/8")/8 ohms
  • ACC connector: 13 pin

Transmitter

  • Output power:
    1.8 - 50 MHz band SSB/CW/RTTY/FM 5 - 100 W
      AM 2 - 40 W
    144 MHz band SSB/CW/RTTY/FM 2 - 20 W
      AM 2 - 8 W
  • Modulation system
    • SSB: Balanced modulation
    • AM: Low level modulation
    • FM: Variable reactance modulation
  • Spurious emissions: Less than -50 dB (HF) Less than -60 dB (50, 144 MHz)
  • Carrier suppression: More than 40 dB
  • Unwanted sideband supp.: More than 50 dB
  • Microphone connector: 8 pin modular jack (600 ohms)
  • KEY connector: 3-conductor 6.35 (d) mm (1/4")
  • RTTY connector: 3-conductor 3.5 (d) mm (1/8")

Receiver

  • Receive system
    • SSB/CW/AM/WFM: Double superheterodyne
    • FM : Triple superheterodyne
  • Intermediate frequencies
      1st 2nd 3rd
    SSB/FM 69.0115 MHz 9.0115 MHz 455 kHz*
    AM/FM-N 69.0100 MHz 9.0100 MHz 455 kHz*
    CW 69.0106 9.0106 -
    RTTY 69.0105 MHz 9.0105 MHz -
    WFM 70.7000 MHz 10.700 MHz -
    *FM or FM-N mode only
  • Receive sensitivity (Preamp 1 On)
      SSB/CW AM FM
    0.5 - 1.8 MHz - 13 µV -
    1.8 - 28 MHz* 0.15 µV 2.0 µV -
    28 - 29.999 MHz 0.15 µV 2.0 µV 0.5 µV
    50 MHz band 0.12 µV 1.0 µV 0.25 µV
    144 MHz band 0.11 µV 1.0 µV 0.18 µV
    Note: SSB, CW and AM modes are measured at 10 dB S/N; FM mode at 12 dB SINAD
    * Except 4-4.5 MHz, 8-9 MHz
  • Squelch Sensitivity (Preamp 1 ON)
    SSB Less than 5.6 µV
    FM Less than 0.32 µV
  • Selectivity (* Without an optional filter unit and with mid bandwidth selected)
    SSB, CW, RTTY More than 2.4 kHz/- 6 dB
      Less than 4.8 kHz/ -60 dB
    AM/FM-N More than 8 kHz/-6 dB
      Less than 30 kHz/-40 dB
    FM More than 12 kHz/-6 dB
      Less than 30 kHz/-60 dB
  • Spurious and image rejection ratio: 70 dB (except IF through/50 MHz) 60 dB (144 MHz FM mode)
  • Audio output power (at 13.8 V DC): More than 2.0 W at 10% distortion with an 8-ohm load
  • RIT variable range +/-9.99 kHz
  • PHONES connector: 3-conductor, 3.5 (d) mm (1/8")/8 ohms
  • EXT SP connector: 2-conductor, 3.5 (d) mm (1/8")/8 ohms
  • Supplied accessories:
    • Hand microphone
    • DC power cable
    • Spare fuses
    • RTTY key plug
    • Electronic keyer plug
    • ACC cable

IC-706MKII Options

  • IC-4KL 1 kW HF LINEAR AMPLIFIER
    Includes a fully automatic antenna tuner. (an optional OPC-599 is required.)
  • AH-2b HF ANTENNA ELEMENT
    For mobile operation with the AH-3
  • AH-3 HF AUTOMATIC ANTENNA TUNER
    For use with a long wire antenna.
  • AT-180 HF +50 MHz AUTOMATIC ANTENNA TUNER
    Style and size are matched to the IC-706MKII
  • EX-627 HF AUTOMATIC ANTENNA SELECTOR
    For up to 9 separate antenna connections. (an optional OPC-599 is required.)
  • MB-62 MOBILE MOUNTING BRACKET
    For mounting the IC-706MKII main unit or the AT-180
  • MB-63 MOBILE MOUNTING BRACKET
    For mounting the detached front panel.
  • MB-65 MOUNTING BASE
    For mounting the detached front panel in a vehicle. The MB-63 is required.
  • OPC-581/OPC-587 SEPARATION CABLES
    Provide separate operation. OPC-581: 3.5m (11ft); OPC-587: 5m (16ft)
  • PS-85 DC POWER SUPPLY
    Output: 13.8 V DC (20 A max.)
  • SM-8 DESKTOP MICROPHONE
    Equipped with 2 connection cables. (an optional OPC-589 is required.)
  • SM-20 DESKTOP MICROPHONE
    High quality desktop microphone. (an optional OPC-589 is required.)
  • SP-7 EXTERNAL SPEAKER
    Compact speaker for base station use.
  • SP-10 EXTERNAL SPEAKER
    Heavy duty speaker for mobile use.
  • SP-12 EXTERNAL SPEAKER
    Thin type speaker for mobile use.
  • FL-100: 500 Hz/-6 dB (CW/RTTY nar.)
  • FL-101: 250 Hz/-6 dB (CW nar.)
  • FL-103: 2.8 kHz/-6 dB (SSB wide)
  • FL-223: 1.9 kHz/-6 dB (SSB nar)
  • FL-232: 350 Hz/-6 dB (RTTY/CW nar.)
  • CR-502 HIGH STABILITY CRYSTAL UNIT
  • CT-16 SATELLITE INTERFACE UNIT
  • CT-17 CI-V LEVEL CONVERTER
  • UT-86 TONE SQUELCH UNIT
  • UT-102 VOICE SYNTHESIZER UNIT
  • OPC-589 MODULAR 8-PIN CABLE FOR AT-180
  • OPC-598 ACC 13 PIN CABLE FOR AT-180
  • OPC-599 ACC 13 PIN CABLE ADAPTER
  • OPC-742 ACC 13 PIN CABLE
 
 
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