HF/50/144/440 MHz MULTIMODE PORTABLE TRANSCEIVER

IC-705

USA Version

“Base Station” performance and features in the palm of your hand.

  • Features
  • Specifications
  • Optional Accessories
  • Support / Download
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HF/50/144/440 MHz Multimode

From HF to 50/144/440 MHz, you can enjoy a variety of bands in the D-STAR DV, SSB, CW, AM and FM modes. The IC-705 receives continuously from 30 kHz through the 144 MHz band. You can also enjoy FM broadcast and air band reception.

RF Direct Sampling System

Configuration diagram of the RF direct sampling method

The IC-705 employs an RF direct sampling system, where RF signals are directly converted to digital data. Then processed in the FPGA (Field-Programmable Gate Array), making it possible to simplify the circuit construction as well as reduce internal noise that can mask weak signals.

* The down-conversion IF sampling method is used for 25 MHz and above.

Real-Time Spectrum Scope and Waterfall Display

Display example of real-time spectrum scope and waterfall

Performance seen with the IC-7300 and IC-9700 spectrum scope is at the tip of your fingers for field operation. You can quickly see band activity as well as find a clear frequency, all in the compact radio and not as an expensive add-on.

Large Touch Screen Color Display

The large 4.3” color TFT touch LCD, same size as the IC-7300 and IC-9700, offers intuitive operation of functions, settings, and various operational visual aids, such as the band scope, waterfall, and audio scope functions. 

Compact and Lightweight Design

"Base Station" performance in the palm of your hand! You will quickly see how this compact radio is rugged, for outdoor use, in a small, lightweight package, weighing approximately 1.1 kg (2.4 lb).

BP-272 Li-ion Battery Pack or 13.8 V DC External Power Supply

BP-272 attached (Rear panel view)

Utilizing the high capacity Li-Ion battery from the ID-51A and ID-31A handheld radios.
A 13.8 V DC external power supply can be used for operation and charging of the BP-272

Maximum Output Power 5 W (BP-272), 10 W (13.8 V DC)

In portable mode, the IC-705 has the maximum output power of 5 W from the BP-272 which can last approximately 3 hours*. This is perfect for true 5 W QRP as well as the 0.5 W QRPp operations. Once you setup with a 13.8 V DC power source, you have up to 10 W.

* TX : RX : standby = 1 : 1 : 8 (The Power Save function ON, in the FM mode)

WLAN/Bluetooth® Technologies

Utilize WLAN/Bluetooth® technologies for linking and remote control*, for a true wireless operation.  The VS-3 headset (optional) enables more comfortable operation via Bluetooth®

* Those features will be available with future firmware upgrades.

GPS Functions

An internal GPS receiver and antenna enhances your operations by providing location logging*, RX/TX locations via D-PRS® , “Near Me” repeater search/scan, QSO recording with metadata*, and internal clock synchronization.  

* Micro SD required

microSD Card Slot

The microSD card slot enables the storage of user profiles, QSO recording, TX voice memory keyer, RTTY logging, GPS data, screen capture, firmware upgrades, and programming.

Micro USB Connector

In addition to audio and rig control, the micro USB port allows charging capability, making digital modes easy with minimal cables.

D-STAR Functions

Enjoy the latest G3 Gateway and DV mode features with the IC-705. Have direct access to the D-STAR network with Terminal/Access point modes. Additionally, the IC-705 has the Photo Share feature introduced with the IC-9700. Share photos, without the need of a computer with other users with an IC-705 and IC-9700.

Programmable Speaker/Microphone

HM-243 Speaker/microphone

Enjoy portable operations with the supplied HM-243, programmable speaker/microphone. Perfect for operation with the IC-705 safely secured in the optional LC-192 backpack. User assignable buttons put functions like frequency and volume adjustments at the tip of your fingers, without removing your backpack.

Optional Backpack, LC-192, Ideal for Field Operations

LC-192 Multi-function backpack

Designed to be the "Ultimate", must have accessory for the IC-705, the LC-192 is the perfect utility backpack. Features like a safety strap, with a 1/4”-20 mounting lug to keep the IC-705 from accidentally falling out of the custom radio compartment, to the user adjustable internal panels for custom compartments for antennas, battery packs, or other items necessary for an afternoon SOTA activation.

Side / Rear Panel View

General

Frequency coverage (Unit: MHz) Receiver

 

0.030–199.999*
400.000–470.000*

Transmitter

1.800–1.999
3.500–3.999
5.255–5.405*
7.000–7.300
10.100–10.150
14.000–14.350
18.068–18.168
21.000–21.450
24.890–24.990
28.000–29.700
50.000–54.000
144.000–148.000
430.000–450.000

Mode

USB, LSB, CW, RTTY, AM, DV, FM, WFM (Rx only)

No. of memory channels

Memory channels: 500 channels (100 groups)

Scan edges: 25 channels

Call channels: 4 channels (2 channels × 2 bands)  

Antenna connector

BNC connector (50Ω)(One connector for all bands)

Power supply requirement

13.8 V DC ±15% (with external power supply)

7.4 V DC (with BP-272)

Operating temp. range

–10°C to +60°C; +14°F to +140°F

Frequency stability

Less than ± 0.5 ppm

(–10°C to +60°C; 14°F to 140°F)

Frequency resolution

1 Hz

Current drain    13.8 V DC 7.4 V DC

TX (Max. power)

Less than 3 A (10 W)

Less than 2.5 A (5 W)
RX (Max. audio) 320 mA (typ.) 700 mA (typ.)
RX (Standby) 260 mA (typ.) 400 mA (typ.)
Dimensions

200×83.5×82 mm; 7.9×3.3×3.2 in (W×H×D, projections not included)

Weight

1.1 kg; 2.4 lb (approx.; including BP-272)

* Some frequency bands are not guaranteed.

Transmitter

Output power  

13.8 V DC

7.4 V DC 
SSB/CW/RTTY/FM/DV

0.5 to 10 W

0.5 to 5 W
AM 0.25 to 2.5 W 0.25 to 1.5 W
Modulation system

SSB : Digital PSN modulation

AM : Digital low power modulation

FM : Digital phase modulation

DV : GMSK digital phase modulation

Spurious emissions

Less than −50 dB (HF)

Less than −60 dB (50 MHz)

Less than −60 dB (144/430 MHz)

Carrier suppression More than 50 dB
Unwanted sideband

More than 50 dB

Receiver

Receiver system 0.030 to 24.999 MHz

RF Direct Sampling         

25.000 MHz and above

Down Conversion IF Sampling

Intermediate frequencies

25.000 MHz and above:38.85 MHz±0.5 MHz

Sensitivity
(HF: Preamp-1 ON,
50 MHz: Preamp-2 ON,
144/430/440 MHz: Preamp ON)
 

0.500 to 1.799 MHz

1.800 to 29.999 MHz 50 MHz to 54 MHz 144/430/440 MHz
SSB/CW(10 dB S/N) - 0.20 μV 0.15 μV 0.11 μV
AM(10dB S/N)

13.0 μV

2.0 μV 1.0 μV 1.0 μV
FM(12 dB SINAD)

0.5 μV (28.000 to 29.700 MHz)

0.25 μV 0.18 μV
DV(1% BER)(PN9)

1.0 μV (28.000 to 29.700 MHz)

0.63 μV 0.35 μV
Selectivity (Filter: SHARP) SSB(BW=2.4 kHz)

More than 2.4 kHz/-6 dB

Less than 3.4 kHz/-40 dB

CW(BW=500 Hz)

More than 500 Hz/-6 dB

Less than 700 Hz/-40 dB

RTTY(BW=500 Hz)

More than 500 Hz/-6 dB

Less than 800 Hz/-40 dB

AM(BW=6 kHz)

More than 6.0 kHz/-6 dB

Less than 10 kHz/-40 dB

FM(BW=15 kHz)

More than 12.0 kHz/-6 dB

Less than 20 kHz/-40 dB

DV(12.5 kHz spacing)

Less than -50 dB

Spurious and image rejection ratio

More than 70 dB (HF/50 MHz)

More than 54 dB (144/440 MHz)

(Except for ADC Aliasing)

Audio output power Internal SP

More than 530 mW (12 Ωload at 10% distortion)

External SP

More than 200 mW (8 Ωload at 10% distortion)

Supplied Accessories

  • HM-243 Speaker-microphone
  • BP-272 Battery pack
  • OPC-2421 DC power cable