The Icom IC-735 Transceiver is a solid-state portable high-frequency ham radio popular with dx expeditions operating with limited space and power.
# Features
The small size, 3.7" high x 9.5" wide x 9.4" deep, simplifies installation in most mobile and portable situations such as automobiles, airplanes, boats or suitcases.
Ward poses with his Icom IC-735 transceiver.
The IC-735 covers all Amateur HF frequencies from 1.8MHz to 30MHz, including the three new bands of 10MHz, 18MHz and 24MHz. It offers SSB, CW, AM and FM operating modes.
All circuits in the IC-735, including the driver and final power stages, are completely solid-state, and the transceiver provides about 100 watts output.
The IC-735 features general coverage receive capability with a tuning range from 100kHz to 30MHz continuous, made possible by an up-conversion system which uses a high side IF and a CPU control system.
The rear panel of the IC-735 has easy-to-access terminals for AFSK (audio frequency shift keying) RTTY operation.
The IC-735 has a 105dB dynamic range with a 70.4515MHz first IF circuit which uses two quality crystal filters that virtually eliminate spurious responses.
The ICOM DFM (Direct Feed Mixer) feeds the incoming signals directly into a high level first mixer developed by ICOM. This advanced system produces a higher spurious response rejection ratio, a higher receiver sensitivity and a wider dynamic range.
The IC-735 has a built-in Passband Tuning system that allows continuous center frequency adjustment of the IF passband. Additionally, a sharp IF notch filter provides clear reception even in the presence of strong interference. Both a 10dB preamplifier plus a 20dB attenuator are installed as standard equipment. The preamplifier increases receiver sensitivity while the attenuator provides added protection from intermodulation problems.
ICOM'S new continuous tuning system features a backlit LCD (liquid-crystal display) that closely follows the TUNING CONTROL, and provides an extremely accurate readout. The VFO, with 10Hz digital tuning steps, gives the feel of an analog tuning system.
The MAIN TUNING CONTROL plus adjacent switches select either the 10Hz, 1kHz or 1MHz tuning speed and, also, control band changes.
The front-mounted SWITCH PANEL is a new idea from ICOM which groups lesser used controls in one compact area behind a protective cover.