IC-7400

ICOM
IC-7400

Specifications

Prices

The IC-7400 all-mode transceiver covers HF, 50 MHz and 144 MHz. 100 Watt continuous duty cycle on all bands. Features: Triple conversion superheterodyne system, 32-bit DSP and 24-bit ADC/DAC, Digital processor creates 102 types of filter, IF bandwidths from 50 to 3600 Hz for SSB / CW / RTTY, Soft and Sharp filter shapes can be selected in both SSB and CW modes, Wide display, Spectrum scope, Twin PBT, Digital noise reduction, Automatic and Manual Notch filter, two stage RF preamplifier, RF attenuator, RF speech compression with selectable pass-band, Microphone Equalizer, CTCSS and DTCS encode/decode, built-in Baudot RTTY demodulator, CW electronic keyer, CW Full break-in, 102 alphanumeric memories, Bar-graph meter displays S / Po / ALC / SWR, built-in Automatic antenna tuner that operates on the HF/50 MHz bands, Three separate antenna inputs. Ideated in Japan, year of introduction 2001.

Reference market : amateur-radio

IC-7400 specifications

General

Frequency coverage
Receive	0.0300 ~ 60.0000 MHz 144.0000 ~ 146.0000 MHz
Transmit [1]	1.8000 ~ 1.9999 MHz 3.5000 ~ 3.9990 MHz 7.0000 ~ 7.3000 MHz 10.1000 ~ 10.1500 MHz 14.0000 ~ 14.3500 MHz 18.0680 ~ 18.1680 MHz 21.0000 ~ 21.4500 MHz 24.8900 ~ 24.9900 MHz 28.0000 ~ 28.7000 MHz 50.0000 ~ 54.0000 MHz 144.0000 ~ 146.0000 MHz
Mode
CW / RTTY / LSB / USB / AM / FM
Tuning step
1 / 10 / 100 Hz / 1 / 5 / 9 / 10 / 12.5 / 20 / 25 kHz

Receiver

Sensitivity
CW / RTTY / SSB	0.16 uV (1.8~30 MHz, 10dB S/N, pre ON) 0.13 uV (50~54 MHz, 10dB S/N, pre ON) 0.11 uV (144~146 MHz, 10dB S/N, pre ON)
AM	13 uV (0.5~1.8 MHz, 10dB S/N) 2.0 uV (1.8~30 MHz, 10dB S/N, pre ON) 1.0 uV (50~54 MHz, 10dB S/N, pre ON) 1.0 uV (144~146 MHz, 10dB S/N, pre ON)
FM	0.5 uV (28~30 MHz, 12 dB SINAD, pre ON) 0.25 uV (50~54 MHz, 12 dB SINAD, pre ON) 0.18 uV (144~146 MHz, 12 dB SINAD, pre ON)
Selectivity
CW [2]	>500 Hz (-6dB) <700 Hz (-60dB)
RTTY [3]	>360 Hz (-6dB) <650 Hz (-60dB)
SSB [4]	>2.4 kHz (-6dB) <3.6 kHz (-60dB)
AM	>6.0 KHz (-6dB) <15.0 KHz (-60dB)
FM	>12.0 KHz (-6dB) <20.0 KHz (-60dB)
RF preamplifier
Preamp-1	HF (low gain, 1.8~21 MHz)
Preamp-2	HF/VHF (high gain, 21~60 MHz)
Preamp	VHF (144~146 MHz)
RF attenuator
Yes
Spurious and image rejection
>70 dB (HF / 50 MHz) [5] >60 dB (144 MHz)
PBT (Passband Tuning)
Yes
Notch filter
Manual	70 dB
Automatic	Yes
NB (Noise Blanker)
Yes
DNR (Digital Noise Reduction)
Yes
RIT (Receiver Incremental Tuning)
±9.99 kHz
AGC (Automatic Gain Control)
Fast, mid, slow, off (Selectable time constant)
Frequency stability
±7 ppm max from 1' to 60' after power on. ±1 ppm/hr max with temperature +25°C after 60' power on. ±5 ppm max with temperature from 0°C to +50°C. ±0.5 ppm [6]
IF (Intermediate Frequency)
1°	64.455 MHz
2°	455 kHz
3°	36 kHz
Squelch sensitivity
CW / RTTY / SSB	<5.6 uV (pre OFF)
FM	<1.0 uV (pre OFF)
CW features
Pitch control (300~900 Hz in ~25 Hz steps) L/USB reverse mode
FSK features
RTTY reverse mode

Transmitter

Output power
CW / RTTY / SSB / FM	5 ~ 100 W
AM	5 ~ 40 W
Spurious emission
<-50 dBc (HF) <-60 dBc (50 MHz) <-60 dBc (144 MHz)
Carrier suppression (SSB)
>40 dB
Unwanted sideband suppression (SSB)
>55 dB
Microphone
600Ω
XIT (Transmitter Incremental Tuning)
±9.99 kHz
CW features
Full / Semi break-in 4-channel memory keyer 6~60 wpm Keyer
Antenna tuner
Impedance range	16.7 ~ 150Ω (HF bands) 20 ~ 125Ω (50 MHz band)
Minimum operating power	8 W (HF bands) 15 W (50 MHz band)
Tuning accuracy	<1.5:1
Insertion loss	<1.0 dB (after tuning)

Features

Memory
99 regular memories 2 for scan edges 1 call channel 10 memo pads
Display
1 Hz frequency resolution 30-segments signal meter bar Simple band scope
Selective calling
1750 Hz tone DTCS 104-codes CTCSS 50-tones
Transmit/receive offset
±9.999 MHz (1 kHz steps)
Antenna
2 x SO239 50Ω (HF/50 MHz) SO239 50Ω (144 MHz)
Power supply
13.8 VDC (±15%, negative ground)
Power consumption
2.2A RX (squelched) 3.0A RX (max audio) 23.0A TX (max RF power)
Audio power
2W on 8Ω
Audio output
Jack 6.35 mm (headphone) Jack 3.5 mm (4~8Ω external speaker)
Connections
Jack 8-pin (microphone) Jack 3.5 mm (CI-V / Computer control) Jack 6.35 mm (Straight CW key) Jack 6.35 mm (Elec CW key, on the front panel) RCA (SEND Control) RCA (ALC Input) 4-pin socket (AH-4 antenna tuner) 6-pin mini-DIN (DATA) 7-pin DIN (ACC2 / Accessory) 8-pin DIN (ACC1 / Accessory)

Mechanical and environmental data

Operating temperature
from -10°C to +60°C
Dimensions
287 (W) x 120 (H) x 316.5 (D) mm
Weight
9.0 kg

HF/50 MHz transmit frequency coverage depending on version.
500 Hz bandwidth. For SSB and CW modes, the passband width can be set within 50 to 3600 Hz in 50 or 100 Hz steps. A total of 41 passband widths are available.
350 Hz bandwidth. For RTTY mode, the passband width can be set within 50 to 2700 Hz in 50 or 100 Hz steps. A total of 32 passband widths are available.
2.4 kHz bandwidth. For SSB and CW modes, the passband width can be set within 50 to 3600 Hz in 50 or 100 Hz steps. A total of 41 passband widths are available.
Except IF through on 50 MHz band.
With optional CR-338 high-stability crystal unit.

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IC-746 / 7400 series :

The ICOM IC-746 HF/VHF rig was first released in 1998, become one of the best value transceivers in the marketplace. The IC-746PRO upgraded radio, with a new DSP system, was released three years later. Following on the success "746" the "746 Pro" covers 160-10 meters plus 6 and 2 meters all mode, 100 Watts of output is available on all bands. The new Pro version features 32 bit floating point Digital Signal Processor and 24-bit ADC/DAC. There are no more optional 9 MHz or 455 kHz IF filters as the digital circuit allows your to select 51 filter bandwidths. There is even a built-in Baudot RTTY demodulator. The IC-7400 is the "746 Pro" version approved for the European market, similar in specifications but with VHF receive frequency coverage limited to 144-146 MHz.

IC-7400 twin pass band tuning :

ICOM IC-7400 twin pass band tuning (PBT)

IC-7400 options :

ICOM IC-7400 options

IC-7400 price

We have collected for your convenience the ICOM IC7400 sale price (UK Pounds) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price	Date	Condition
GBP 623.00 (725EUR)	2022-jun	Second Hand Perfect condition. Comes with manual and box
GBP 561.90 (679USD)	2022-may	Second Hand Tested and working
GBP 699.95	2021-feb	Second Hand Comes with microphone, power lead, manual. Boxed

IC-7400 review

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