ICOM IC-703

HF + 50 MHz All Mode Transceiver

Small and powerful HF transceiver with 6 Mtr.

ICOM IC-703

Icom proudly announces the debut of the IC-703, QRP portable transceiver. In the world of HF/50 MHz portable communications, the IC-703 incorporates all the practicality and technical expertise of the IC-706MKIIG, but does so with an emphasis on portability and economy.

A built-in antenna tuner, built-in DSP unit*, 10 W** of output power, an optional external battery pack and specified carrying case for portable operation allow the IC-703 to have base station ability with all the portable convenience of a mobile rig. A delight for HAM operators.
*Optional for some versions. ** When operating with 13.8V DC

Built-in automatic antenna tuner.

The IC-703 has an automatic antenna tuner built in to its compact body. The antenna tuner covers from 1.8 MHz to 54 MHz and  matches up to VSWR 1:7 to 2.0 or less. Field and mobile operation are made simple anf efficient, especially when using a short length antenna covering narrow bandwidth. Latch relays are used for the antenna tuner eliminates the need carry an extra one with you, but the IC-703 allows you to connect an optional tuner like the AH-4 if desired. Something for everyone.

DSP capabilities*

The built in DSP unit* provides superior receive performance. The noise reduction function helps pick out the signal buried in noise, and improves the S/N ratio. The automatic notch cuts beat interference which is useful for FM and SSB operation.
*Optional UT-106 required for some versions.

Newly developed PA unit.

A stable 10 W output power (4 W in AM) is amplified by the newly designed PA unit, when 13.8V DC is supplied. The IC-703 provides 5 W output (2 W in AM), while operating at 9.6V DC (9.6V-11V) or with an optional battery pack

High sensitivity receiver.

The IC-703 achieves a high sensitivity of 0.16µV* in SSB, CW and RTTY modes within HF bands, on par with that of a base station transceiver. The IC-703 provides excellent sound reproduction of both faint and strong signals even in crowded band conditions during contests * 0.18µV for 50 MHz band. 

Max. power set function.

Precise maximum output power settings (10/5/2.5/1/0.5 W) are selectable, instead of hi/low only power settings. The power meter automatically adjusts its measurement range according to the max. power setting. For example, the power meter shows 5 W as full scale , when used at the 5 W setting, or 10 W as full scale at 10 W setting, etc. External battery pack and carrying case. The optional 9.6V/2800mAh NiCd battery pack provides 8 hours* of operating time at 5 W output. The IC-703 and the battery can be packed into the carrying case, LC-156, making the IC-703 a go anywhere rig. *Tx:Rx:Standby=0.5:0.5:9 in SSB mode, 5 W max. power.

Current consumption control.

To save power consumption, the IC-703 has a current consumption control setting. When “Auto” is selected in this mode, the IC-703 automatically detects the power supply voltage and reduces the current consumption while operating with the external battery pack (or less than 11 V power source). A LCD backlight timer setting also controls the LCD backlighting depending on the power supply voltage. A duty cycle control setting also further reduces current consumption in the standby condition.

Controller detachable from main unit.

The controller can be separated from the main unit. This allows flexible installation for mobile use in vehicles, as well as am out of the way setup in your shack or during portable (manpack) operation. Microphone connectors are equippped on both the controller and main unit. Separation cables, OPC-581/OPC-587 (3.5m/5m), are optionally available. 
 

High frequency stability.

A high stability TCXO unit is adopted for the oscillator, to achieve ±.0.5 ppm high frequency stability. This is ideal for stable operation during continuous operation of PSK31, RTTY or SSTV.

Ample functions for CW operators.

•Built in 3 channel memory keyer with 50 character capacity.
•Electronic keyer with a variable dot/dash ratio
•CW reverse function to reduce adjacent interference.
•CW pitch can be adjusted in the range of 300-900Hz
•CW narrow mode (optional CW narrow filters required).
•Full break-in (QSK) is available
•Paddle polarity reverse functions
•Bug keyer simulation mode

Filter selection.

The IC-703 adopts a 455kHz crystal filter with good shape factor. Optional crystal filters can be installed into the transceiver to further improve the selectivity and prevent QRM.

IF shift.

IF shift is effective in reducing adjacent frequency interference in SSB, and enables comfortable operation even under crowed band conditions, such as during contests. The IF shift setting condition is graphically indicated on the LCD.

Spectrum scope function.

This function sweeps 14 steps from the displayed frequency and plots received signal strength on the function display. This function is useful not only for checking HF band conditions

SWR graphic function.

The SWR graphic function is a convenient function for using the IC-703 in the field. 
It measures and plots the SWR within a specified range.

Other outstanding features.

•Digital S-meter with “Peakhold”function
•Variable SSB carrier-point
•Amber LCD backlight
•Auto tuning step function.
•Speech compressor.
•Bandstacking register
•Built-in preamplifier.
•RIT, VOX and noise blanker are standard
•CI-V system capability
•Fanless cooling system provides silent operation
•RTTY (FSK) mode available
•9600bps data terminal on rear panel
•Total 105 memory channels
•Combined SQL and RF gain control knob
•Optional voice synthesizer, UT-102
•Stabilizers added for standing IC-703 vertically