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The SDR Everyone Wants
Faint signals are no longer a challenge for DXers and Contesters around the world, with the new IC-7610. The difference between putting the QSO in the log or trying another time is the capability of your receiver. The high performance RMDR in the IC-7610 has the ability to pick out the faintest of signals even in the presence of stronger, adjacent signals. The IC-7610 introduces dual RF direct sampling receivers. Achieving 100dB RMDR, these receivers rival that of other top-of-the-line transceivers. The IC-7610 also comes with a high-speed, high-resolution, real-time spectrum scope on a 7-inch color display.
Output power: |
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100W (25W AM) |
RX Frequencies: |
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0.030-60.00MHz |
Receiver type: |
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Direct sampling |
RF direct sampling system
The IC-7610 employs an RF direct sampling system, where RF signals directly convert to digital data and then processed by the FPGA (Field-Programmable Gate Array). This process reduces distortion that naturally occurs in the various mixer stages found in traditional superhetrodyne receivers.
The RF Direct Sampling System in the IC-7610 is capable of 110 dB* RMDR. This performance gives you the ability to pull weak signals out of the noise of strong adjacent signals. There is a difference you can actually hear as the desired signal comes out of the pileup!
* Representative value at 2 kHz frequency separation (Received frequency: 14.2 MHz, Mode: CW, IF BW: 500 Hz)
RMDR characteristics

Independent dual receiver
Whether listening to both sides of DX station running split, or looking for a multiplier on a different band or mode, the dual receivers in the IC-7610 have you covered. Two separate DIGI-SEL preselectors, two separate Band Pass Filter networks, feed two separate A/D converters into the FPGA.
Dual receiver

Dual Digi-Sel
The DIGI-SEL preselectors are RF filters with sharp, narrow passband characteristics preventing Analog-to-Digital Converter overflow from large out-of-band signals when sampling the RF signals. Additionally the third and higher order IMD components are reduced. This is ideal when strong signals are received in a contest pile-up or from broadcast stations on adjacent frequencies or bands.
BPF and preselector passband characteristics receiving on 7.22MHz
Passband characteristics between the antenna and the preselector (at the preselector output)
Large color touch screen
The large 7” color TFT touch LCD offers intuitive operation of functions, settings, and various operational visual aids such as dual spectrum scope aligned vertically or horizontally, simulated analog meters and RTTY, PSK31/63 mode decoded messages.
The combination of the touch screen and the multi-dial knob 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 by touching the screen and can adjust the levels by turning the multi-dial knob.
Additional Features:
- Built-in automatic antenna tuner
- Digital-Up-Conversion (DUC) for clean transmit
- Dual receivers, dual spectrum scopes
- DVI-D connector for an external display
- SD memory card slot for saving data
- I/Q signal output
- Memo pad stores up to 10 operating frequencies and modes
- Quick split function
- Quick Dualwatch function
- RF gain and squelch control with a knob
- RIT and ΔTX variable up to 9.999 kHz
- UTC/local clock and timer function
- 1 Hz pitch tuning and display
- Dial lock function
- Adjustable main dial brake
- External speaker jacks for Main and Sub receivers
- Screen saver function
- Multi-function meter (S-meter, Power, ALC, COMP, SWR, ID, VD and TEMP)
- Auto tuning step function
Specifications
General
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Frequency coverage
Rx
Tx
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0.030– 60.000 MHz*1
1.800–1.999, 3.500–3.999, 5.255–5.405*2
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 MHz
*1 Guaranteed range: 0.500–29.999, 50.000–54.000 MHz.
*2 Some frequency bands are not guaranteed.
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Mode
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USB, LSB, CW, RTTY, PSK31/63, AM, FM
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Number of channels
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101 (99 regular, 2 scan edges)
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Antenna connectors
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SO-239 × 2 (50 Ω unbalanced (Tuner off))
BNC × 1 (RX antenna In/Out)
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Power supply requirement
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13.8 V DC ±15% |
Operating temperature range
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0°C to +50°C; +32°F to +122°F
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Frequency stability
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Less than ±0.05ppm
(0°C to +50°C, after warm up)
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Frequency resolution
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1 Hz (minimum)
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Power consumption
TX
RX
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23 A (at 100 W output power)
3.0 A (Standby), 3.5 A (Maximum audio) |
Dimensions (W×H×D)
(projections not included)
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340 × 118 × 277 mm;
13.4 × 4.6 × 10.9 in
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Weight (approx.)
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8.5 kg; 18.7 lb
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Transmitter
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Output power (HF/50 MHz)
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SSB/CW/FM/RTTY/PSK: 1–100 W
AM: 1–25 W Digital P.S.N.
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Modulation system
SSB
AM
FM
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Digital P.S.N. modulation
Digital low power modulation
Digital Reactance modulation
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Spurious emission
HF Bands
50 MHz band
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Less than –50 dB
Less than –63 dB
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Carrier suppression
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More than 50 dB
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Unwanted sideband
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More than 50 dB
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Microphone impedance
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600Ω (8-pin connector)
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Receiver |
Receiver system
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Direct Sampling Superheterodyne
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Intermediate frequencies
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12 kHz
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Sensitivity*3
SSB/CW (at 10 dB S/N)
AM (at 10 dB S/N)
FM (at 12 dB SINAD)
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0.5– 1.799 MHz
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6.3 μV typ.
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1.8– 29.999 MHz
0.16 μV typ.
2.0 μV typ.
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28.0– 29.7 MHz
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0.5 μV typ.
50–54 MHz
0.13 μV typ.
1.0 μV typ.
0.32 μV typ.
*3 HF: Preamp 1 ON, 50 MHz: Preamp 2 ON, BW: SSB/CW=2.4 kHz, AM=6 kHz, FM=15 kHz
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Squelch sensitivity (Threshold)
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SSB: Less than 3.2 μV (Preamp ON)
FM: Less than 0.32 μV (Preamp ON
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Selectivity (Filter shape: Sharp)
SSB (BW: 2.4 kHz)
CW (BW: 500 Hz)
RTTY (BW: 500 Hz)
AM (BW: 6 kHz)
FM (BW: 15 kHz)
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More than
2.4 kHz/–6 dB
500 Hz/–6 dB
500 Hz/–6 dB
6.0 kHz/–6 dB
12.0 kHz/–6 dB
Less than
3.6 kHz/–60 dB
700 Hz/–60 dB
700 Hz/–60 dB
15 kHz/–60 dB
20 kHz/–60 dB
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Spurious and image rejection ratio
HF bands
50 MHz band
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More than 70dB
More than 70 dB (Except for ADC Aliasing)
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Audio output power
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More than 2.6W at 10% distortion with an 8Ω load
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Tuner |
Frequency range
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1.9–50 MHz bands
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Matching impedance range
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16.7 Ω–150 Ω unbalanced (VSWR better than 3: 1)
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Tuning accuracy
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VSWR 1.5: 1 or less
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Tuning time
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2–3 seconds (average) (Maximum 15 seconds)
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All stated specifications are subject to change without notice or obligation.
Supplied accessories
- Hand microphone, HM-219
- DC power cable
- Fuses
- Plugs
This unit adopts RF direct sampling system for signal processing. By converting the analog signal directly to a digital signal and processing it within the FPGA [* 1], it realizes improved transmission phase noise and excellent RMDR [* 2] of 105 dB (at 1 kHz detuning). Furthermore, it has two independent reception circuits of main / sub identical performance, and it enables simultaneous reception of two waves of different band / different modes.
Boasting high-speed, high-resolution performance, real-time spectrum scope also supports different bands / dual display that can monitor different modes. It also has a waterfall display function that displays received signals in chronological order. Also, the DIGI-SEL unit is mounted on each of the main side and the sub side of the receiver. Shut out powerful radio waves from shortwave broadcast stations. In addition, it adopts a large 7-inch full-color touch panel, realizing visibility of various setting information and intuitive operation.
In addition to high basic performance including RF direct sampling method, this machine with many new functions is an authentic HF transceiver that fascinates a wide range of amateur radio users.
Main features
- Further evolved RF direct sampling method.
- Excellent RMDR: 105 dB realized.
- Dual watch function which can receive simultaneously in different bands and different modes.
- The DIGI-SEL unit that eliminates powerful unnecessary radio waves is installed in the main and sub of the receiving section.
- Equipped with high-speed real-time spectrum scope and waterfall display function.
- By adopting the 7-inch full-color touch panel, outstanding operability and visibility are realized.
* 1 ... FPGA (Field Programmable Gate Array) is an integrated circuit whose designer can set the configuration.
* 2 ... RMDR (Reciprocal Mixing Dynamic Range) is an index of how much the reception sensitivity deteriorates due to blocking from a strong signal in proximity.
ICOM Press rel.
It provides 100 (tentatative) watts of power and features a built-in antenna tuner. It has a large color touch screen display and supports and external monitor. The rear panel has BNC jacks for receive antenna, transverters, reference input, etc.

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