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The IC-7300’s real-time spectrum scope is classleading in resolution, sweep speed and dynamic range. While listening to received audio, you can check the real-time spectrum scope and quickly move to an intended signal. When you first touch the scope screen around the intended signal, the touched part is magnified. A second touch of the scope screen changes the operating frequency and allows you to accurately tune.
Here is a comparison with the Yaesu FT-991:
|Mode||SSB, CW, RTTY, AM, FM|
|Number of channels||101 (99 regular, 2 scan edges)|
|Antenna connector||SO-239 (50Ω)|
|Power supply requirement||13.8V DC ±15%|
|Power consumption||Tx||21A (at 100W output power)|
|Rx||0.9A typical (Standby),
1.25A (Maximum audio)
|Operating temperature range||–10˚C to +60˚C; 14˚F to 140˚F|
|Frequency stability||Less than ±0.5ppm
(–10˚C to +60˚C; 14˚F to 140˚F)
(projections not included)
|Weight (approximately)||4.2kg; 9.26lb|
|Output power |
|SSB, CW, FM, RTTY||2–100W (HF/50MHz), 2–50W (70MHz)|
|AM||1–25W (HF/50MHz), 1–12.5W (70MHz)|
Digital P.S.N. modulation
Digital Low power modulation
Digital Reactance modulation
|Spurious emissions||Less than –50dB (HF bands),
Less than –63dB (50MHz band),
Less than –60dB (70MHz band)
|Carrier suppression||More than 50dB|
|Unwanted sideband||More than 50dB|
|Receiver system||Direct Sampling Superheterodyne|
|Sensitivity||SSB/CW: (BW: 2.4kHz at 10dB S/N)
1.8–29.999MHz 0.16μV (Preamp 1 ON)
50MHz 0.13μV (Preamp 2 ON)
70MHz 0.16μV (Preamp 2 ON)
AM: （BW: 6kHz at 10dB S/N)
0.5–1.8MHz 12.6μV (Preamp 1 ON)
1.8–29.999MHz 2.0μV (Preamp 1 ON)
50MHz 1.0μV (Preamp 2 ON)
70MHz 1.0μV (Preamp 2 ON)
FM: (BW: 15kHz at 12dB SINAD)
28.0–29.7MHz 0.5μV (Preamp 1 ON)
50MHz 0.25μV (Preamp 2 ON)
70MHz 0.25μV (Preamp 2 ON)
|Squelch sensitivity (Threshold)||SSB: Less than 5.6μV,
FM: Less than 0.3μV
(HF: Preamp 1 ON, 50/70MHz: Preamp 2 ON)
|Selectivity (sharp filter shape)||SSB (BW: 2.4kHz)
More than 2.4kHz / –6dB
Less than 3.4kHz / –40dB
CW (BW: 500Hz)
More than 500Hz / –6dB
Less than 700Hz / –40dB
RTTY (BW: 500Hz)
More than 500Hz / –6dB
Less than 800Hz / –40dB
AM (BW: 6kHz)
More than 6.0kHz / –6dB
Less than 10.0kHz / –40dB
FM (BW: 15kHz)
More than 12.0kHz / –6dB
Less than 22kHz / –40dB
|Spurious and image rejection ratio||HF: More than 70dB
50/70MHz: More than 70dB (Except for ADC Aliasing)
|Audio output power||More than 2.5W
(at 10% distortion with an 8Ω load, 1kHz)
|Frequency range||1.9–70MHz bands|
|Matching impedance range||16.7Ω–150Ω unbalanced (VSWR better than 1: 3)|
|Tuning accuracy||VSWR 1: 1.5 or less|
|Tuning time||2–3 seconds (Maximum 15 seconds)|
Real-Time Spectrum Scope Specifications
* Number of pixels shown at the 60dB level, when receiving a signal.
The combination of the waterfall function and the real-time spectrum scope assists in maximum receive performance of the IC-7300 and increases QSO opportunities without missing weak signals. The waterfall function shows a change of signal strength over a period of time and allows you to find weak signals that may not be apparent on the spectrum scope.
The audio scope function can be used to observe various AF characteristics such as microphone compressor level, filter width, notch filter width and keying waveform in the CW mode. Either the transmit or receive audio can be displayed on the FFT scope with the waterfall function and the oscilloscope.
The IC-7300 employs an RF direct sampling system. RF signals are directly converted to digital data and processed in the FPGA (Field-Programmable Gate Array), making it possible to simplify the circuit construction. This system is a leading technology making an epoch in amateur radio.
The new “IP+” function improves 3rd order intercept point (IP3) performance. When a weak signal is received adjacent to strong interference, the AD converter is optimized against signal distortion.
The IC-7300’s RMDR is improved to about 97dB* (typical value) and Phase Noise characteristics are improved about 15dB (at 1 kHz frequency separation) compared to the IC-7200. The superior Phase Noise characteristics reduce noise components in both receive and transmit signals.
* At 1 kHz frequency separation (received frequency: 14.2MHz, MODE: CW, IF BW: 500Hz)
The IC-7300 has 15 discrete RF band-pass filters. The RF signal is only passed through one of the band-pass filters, while any out of range signals are rejected. High Q factor coils are used to minimize the loss in the RF band-pass filters.
Automatic antenna tuner
The antenna tuner memorizes its settings based on your transmit frequency, so that it can rapidly tune when you change operating bands. The Enforced Tuning function* allows a wide range of temporary antennas to be tuned.
* Do not use the Enforced Tuning function except in case of an emergency. Transmission power may be reduced.
The combination of the multi-dial knob and the touch screen offers quick and smooth operation. When you push the multi-dial knob, menu items are shown on the right side of the display. You can select an item with a touch of the screen and adjust levels by turning the multi-dial knob.
The large 4.3 inch colour TFT touch LCD offers intuitive operation. Using the software keypad of the touch screen, you can easily set various functions and edit memory contents.
To offer superior sound quality, a new speaker unit has been incorporated and is allocated dedicated space in the aluminum die-cast chassis.
SD memory card slot
|(The SD card is not included.)|
The IC-7300 can store various content on an SD card such as received and transmitted audio, voice memories, RTTY/CW memories, RTTY decode logs and captured screen images. Personal and firmware update data can also be stored on the SD card for easy setting.