THE TRANSCEIVERSolid Design Basics and HF Expertise
Raising the Bar
Contesters and DXers are always looking for that competitive edge to magically pull out the
weak signal that is either the rare country or multiplier they need to climb up the list. Larger
antennas, higher gain pre-amps and other devices in line are great. However, what happens
inside the radio with all those signals coming down your feedline can defeat all your efforts.
With the design of the IC-7851, Icom’s engineers focused on a new Local Oscillator (LO)that drastically reduces the phase noise. As a result of this design, the purity of the LO achieves
a Reciprocal Mixing Dynamic Range (RMDR) of 110dB.
In addition to the incredibly clean LO allowing you to hear the weak signals, the new spectrum scope design enables you to see the weak ones! Faster processors, higher input gain,
higher display resolution and a cleaner signal from the receiver’s LO will give you a new
window into the RF world. Adding this performance and functionality for both receivers give
you a dual scope portal.

THE TRANSCEIVER

1

Reciprocal Mixing Dynamic Range

Competitive Advantage: Reciprocal Mixing Dynamic Range
RMDR: 110dB
Raising the Bar

1.2kHz Optimum Roofing Filter

Design advances developed by the Icom HF engineers for the Local
Oscillator (LO) enable the IC-7851 to set a new benchmark for amateur
radio receivers. The goal was to dramatically reduce the phase noisethat degrades the target signal due to the sum of the entire signal present. The result was a RMDR of 110dB*. Below is a comparison of the
improvement over the IC-7800.
* At a 1kHz offset frequency
Receiving frequency: 14.2 MHz Mode: CW, IF BW: 500 Hz
Roofing Filter IC-7800 = 3 kHz, IC-7851 = 1.2 kHz

RMDR Comparison
R MDR( d B)
1kHz

2kHz

1 0 kHz

2 0 kHzI C -7851

110

116

121

124

I C -7800

78

87

106

112

Despite the trend to switch to a down conversion
or a hybrid conversion receive design, Icomb e l i eve s i n t h e s o l i d p e r fo r m a n c e o f t h e
up-conversion design. In an up-conversion
receiver, suppression of image interference andreduce distortion from electric components iseasily overcome. A flat consistent performance
Optimum Roofing Filter
is delivered over a wider frequency range.
The IC-7851 introduces a new 1.2kHz Optimum Roofing Filter, greatly
improving the in-band adjacent signal performance. This newly developed filter overcomes the gap of a narrower roofing filter in an
up-conversion receiver.
Optimum Roofing Filter Characteristic Diagram

RMDR
RMDR (Reciprocal Mixing Dynamic Range) is the relative level of anundesired signal, offset “n” kHz from the RX passband, which will raise
noise floor by 3 dB. The local oscillator phase noise will mix with strong
unwanted signals and unavoidably generate noise which masks awanted signal.

Crystal Clear LO (Local Oscillator) Design
Breaking the boundaries of traditional designs, the IC-7851 employs a
Direct Digital Synthesizer (DDS) along with a Phase Locked Oscillator for
the LO. The C/N ratio excels beyond the IC-7800 and other similar class
HF transceivers. This design significantly reduces noise components inboth receive and transmit signals.
LO C/N Characteristics ComparisonsReceiving Frequency: 14.2 MHz Mode: CW 1st LO frequency: 78.655 MHz
SPAN = 20 kHz, RBW = 30 Hz, VBW = 10 Hz
0

0

-10

-10

-20

-20

-30

-30

-40

-40

-50

-50

-60

-60

-70

-70

-80

-80

-90

-90

-100

-100

IC-7851

IC-7800

Improved Phase Noise Characteristics
Phase noise is coherent in radio circuit design and the new LO design introduced in the IC-7851 makes some major breakthroughs while utilizing
the 64MHz, up-conversion receiver design introduced in the IC-7800.
An impressive 20dB improvement is seen with the IC-7851’s 10 kHz measurement and more than 30dB improvement at a 1 kHz measurement incomparison to the IC-7800.
Phase Noise Characteristics ComparisonsReceiving Frequency: 14.2 MHz Mode: CW 1st LO frequency: 78.655 MHz-70 dBc/Hz-70 dBc/Hz
-80

-80

-90

-90

-100

-100

-110

-110

-120

-120

-130

-130

-140

-140

-150

-150

-160

-160
100 Hz

1 kHz

10 kHz

100 kHz

1 MHz

10 MHz100 HzFrequency Offset

IC-7851

1 kHz

10 kHz

100 kHz

1 MHz 10 MHz

Frequency Offset

IC-7800

2

Spectrum Scope

Twice the Speed,
Sensitivity, Resolution
and More Control

Dual Scope Function

Improved Spectrum Scope
Following the design linage of the IC-7800, the IC-7851 uses a dedicated
DSP unit for the Fast Fourier Transform (FFT) spectrum. The 2250
MFLOPS DSP processor enables a new dual scope function and significantly faster sweep speeds and better accuracy than in the IC-7800.

While you can watch both receivers on the scope of the IC-7800, within
the limits of the scope bandwidth, the IC-7851 introduces the new dual
scope – the ability of watching both receivers in separate spectrum
scopes. The dual scope function is vital for watching for multipliers orband openings in contests, or working all bands/modes on a DXpedition.

Scope DSP
TMS320C6745 by Texas Instruments
32-bit floating point
2250 MFLOPS
370 MHz clock speed

Scope Comparison
IC-7851

IC-7800

5kHz–1000kHz

5kHz–500kHz

Resolution *1

1 pixel minimum * 2

20 pixels minimum * 4

Sweep Speed

29.3 frames/Sec * 3

4 frames/Sec * 3

Display Dynamic Range

100dB

80dB

Noise Floor Level–30dBμ–19dBμSpan Width* 1 Number of dots shown at the 60 dB level, when receiving a signal.
* 2 SPAN = More than 20 kHz, SPEED = Slow
* 3 SPAN = Less than 20 kHz, SPEED = Fast
* 4 SPAN = 500 kHz, SPEED = Slow

Audio Scope Function
The audio scope simultaneously shows an oscilloscope and FFT for receive
and transmit audio. Adjust your transmit audio by watching your compressor
level, equalization and mic gain settings to give you the audio you want for
SSB. The oscilloscope shows the CW waveform. On receive, you can see thepower of your filtering by watching filtering adjustments take out interfering
signals including filter width and notch filter placement. The processing powerin the IC-7851 allows for dual mini band scopes as well as the audio scope.
Specifications for the audio scope• Attenuator: 0 dB, –10 dB, –20 dB and –30 dB• FFT scope with waterfall and FFT scope without waterfall• Waveform color and drawing (outline or fill) settings
for the FFT scope

Specifications for the oscilloscope• Level: 0dB, –10 dB, –20 dB and –30 dB• Sample rate: 1ms/Div, 3ms/Div, 10ms/Div, 30ms/Div,
100ms/Div and 300ms/Div, 5 Div width• Waveform color setting

Dual scope example (Vertically aligned)

Dual scope example (Horizontally aligned)High Resolution Spectrum Waterfall Display
The waterfall display captures signal strengths over time. This allows
you to see signals that may not be apparent on a normal scope. Additionally, the combination of the scope attenuator and the wide screenmode gives you a better view of
weaker signals as band conditions
change. For the ultimate scopeenhancement, the IC-7851 has adigital video interface (DVI-I) for alarger display.
Spectrum scope with waterfall(wide screen setting)

Click Control
By connecting a human interface device (such as a USB mouse, trackballor touchpad) to the USB port on the rear panel, you gain control over the
spectrum display pointer for “Click-and-Listen” receiver control. Fix/Center
mode, sweep speed and other settings are controllable.
<For example>

Mini spectrum scope and audio scope

3

Mini dual spectrum scope and audio scope• Left click to change operating frequency• Click a button (either left or right) and moveright or left side on the screen to increase or
decrease the operating frequency (similar
to rotating the main dial)• Right click to temporarily change the receive
frequency. Release the mouse button to
return.

Basic Functions

Image Rejection Mixer

Premium components yieldpremium performance+40dBm IP3(3rd Order Intercept Point)
The IC-7851 continues the +40dBm, 3rd orderintercept point and 110dB receiver dynamic
range benchmark set by the IC-7800. To
achieve this superb receiver performance, theentire analog circuitry and components havebeen re-engineered to match the DSP units. A
newly designed LO amplifier generates highoutput while keeping flat frequency characteristics over a 60MHz wide range.
Dynamic Range Characteristics
Intercept Point+40dBm IP3

Receiver output

At 14 MHz band

Digi-Sel Preselector
The preselector
works between
1.5MHz and
30MHz andrejects distortion
components
d e r i v e d f r o m Automatic Preselector
out of band interference such as multi-multioperation or strong broadcast stations. It automatically tracks the intended signal keeping
the preselector’s bandwidth centered on theoperating frequency. The center frequency ofthe preselector is manually adjustable fromthe DIGI-SEL tuning knob on the front panel.
Automatic Preselector bandwidth characteristics
REF 0.0 dBm
DL −30.0 dBm
MKR 14.16 MHz
10 dB/*A_Write Norm
B_Blank Norm
−8.73dBm

0dB

MARKER
1 4 . 16 MHz

Simple receiver system configuration is thebest way to eliminate sources of the spurious signals and distortion from transceivers.
T h e I C - 7 8 5 1 u s e s a d o u bl e c o nve rs i o nsystem composed of a D-MOS FET 1stmixer and image rejection mixer for the 2ndstage. The 1st mixer stage is driven with asignal from the high-drive Local Oscillator
with excellent C/N. The image rejection
mixer for the 2nd stage reduces signal distortion through IF processing and provides
a high-fidelity signal to the DSP unit. Thissystem provides wide dynamic range, reducing the distor tion from strong signals andlower intermodulation.

High Performance OCXO Unit
The IC-7851 usest h e O C XO ( O v e nControl Crystal Oscillator) unit which isstable to within±0.05ppm at 0°C to
50°C. This specifica- OCXO unit
tion means that even on the 50MHz band,
frequency error is less than 2.5Hz! In addition,
a 10MHz reference frequency can be input
and output for accurate tuning.

Noise Floor
level

200W Output Powerat Full Duty Cycle

Dynamic range 110dB
Antenna Terminal input

Dynamic Range (typical)
Roofing
FilterBandwidth
IC-7851

Dynamic Range (dB)
Spacing
1kHz

2kHz

5kHz

20 kHz

15kHz

100

101

104

114

1.2kHz

99

105

111

113

START 0 Hz
RBW 300 kHz

VBW 300 kHz

SWP 200ms

STOP 30.00 MHz
ATT 10 dB

Triple DSP PowerBPF Switching:
Mechanical Relays
The IC-7851 incorporates high-grade,long-term reliable mechanical relays rather
than PIN diodes for switching the Band Pass
Filters (BPF). This deployment of relays removes secondary
distortion products
from the primarystage of signal
processing.
BPF unit

Three separate 24-bit AD/DA converters anddedicated DSP processors are at the heart of
the IC-7851. With one AD/DA and DSP dedicated to the spectrum scope and two 24-bit
AD/DA and DSP chips for the receivers andtransmit circuits, there is plenty of DSP power
for the most demanding RF environment.
Transmit/
Receiver DSP (left) andReceiver DSP (right)
ADSP-21489
by Analog Devices
32-bit floating point DSP
2400 MFLOPS
393 MHz clock speed

Four 1st IF “Roofing” Filters
Three high-spec 1st IF “Roofing” filters plus
the new 1.2kHz Optimum Roofing Filter
allow only signals within the filter passband
to the 1st IF amplifier stage. You can selectthe filter width from 15kHz, 6kHz, 3kHz and
1.2kHz, depending on your operating mode.
(FM mode is fixed at 15kHz)

1.2kHzOptimum Roofing Filter
3, 6, 15kHz
High-Spec 1st IF filters

The push-pull power
amplifiers using
power MOS-FETs
wor k on 48V DC.
They provide a powerful 200W output
p ow e r a t f u l l d u t y PA unit and heat sinkcycle and low transmit intermodulation. An
effective cooling system maintains internal
te m p e r a t u re s w i t h i n a s a fe r a n g e a n dprevents thermal runaway.

Solid Aluminum Main Dial Knob
The main dial tuning
knob is pure functional beauty.
Machined from asolid aluminum
block, the main dialtuning knob gives you a solid operational feel.
The diamond engraved accents are cosmetic
perfection – expected only from a radio of thiscaliber.

Dual AGC Loops
The IC-7851 has multiple AGC loops. The AGC voltages detected in front of and behind the digital IF
filter in the DSP unit. The first AGC loop prevents saturation of the 1st IF amplifier. The other AGC loop
detects the AGC voltage at the digital IF filter output which has only passed the intended signal anddraws the full potential from the
2nd Mixer (Image Rejection Mixer)
Receiver DSP Unit
digital IF filter. Combining theIF
AMP
digital IF filter, manual notch,
IF
AMP
A/D
BPF
AMP
and the 1st IF stage, these areIFAMP
all controlled by the DSP unit.
AGC
DET
110dB of ultra wide dynamic
90 degrees
AGC
Phase
shifter
D/Arange in the receiver means the
DET
IF amplifier is distor tion free
AGC Loop linefrom strong signals.

4Basic Functions

Digital Voice Recorder

Operational functionality
for the most advanced operators
Dual Receivers
The IC-7851 incorporates two completely independent receivers, from the antenna inputs
all the way through to the stereo headphone
and individual external speaker outputs. All theperformance of the first receiver is duplicatedfor a perfectly matched set of “Twins”. Whenconnected to external stereo headphone, mainand sub receiver audio can be mixed or separated to the right and left.

RTTY/PSK31 and PSK63
RTTY, PSK31 as well as the new PSK63
m o d e s a re ava i l a bl e a t yo u r fi n g e r t i p s
without the use of a computer. The built-in
Modulator/Demodulators are activated by via
the radio’s functions buttons or an optional
USB keyboard. TX memories make contacts asnap and communications logs can be stored
on an SD memory card.

RTTY mode display

Digital IF Filters“Build your own” IF filters by adjusting the IF
filter width, 50 – 3600Hz, as well as soft or
sharp filter characteristics for your perfectsound. Save these settings in three userdefined filter presets, Wide/Mid/Narrow, bymode to give you full customization of yourfilters.

Filter preset screen

Digital Manual Notch
HF operators marvel at how well DSP reduces
interfering signals and noise. Signals suchas heterodynes and AM Carriers can be eliminated with automatic notch filter technology.
Making interference from RF sources suchas beat signals and RTTY signals is a thingof the past. Additionally, the filter shape of themanual notch can be adjusted in three steps –with more than 70dB of attenuation!
Manual Notch Filter Characteristics

Wide
MiddleNarrow

5

The digital voice recorder captures both
receive and transmit audio to your SD or USB
storage devices. Up to 9 hours of continuous
audio recording is possible with 2 GB of
storage. Record your QSO with a rare entity
or record your operating time in a contest. Operating frequency, mode, S-meter and output
power are automatically captured.

Digital Twin PBT(Passband Tuning)
Once the IF filters have been “tweaked,” theoperator has additional control with the digitaltwin passband tuning (PBT). The digital twin
PBT allows flexibility of both the IF shift andnarrowing of the digital IF passband by moving
the IF passband. With the digital IF filters, PBT
performance allows you to cut away all the interference and noise to hear the actual signal.

Variable Level Noise Reduction
The digital noise reduction separates a target
signal from noise components and noise suppression level is variable in 16 -steps, dependingon the noise level. The low latency digital noise
reduction is achieved by applying an adaptive
filter using the high speed DSP computing power.

New Auto Digital Noise Blanker
While most noise blanker reduces pulse typenoise, the IC-7851 introduces a new automatic
digital noise blanker circuit. While using the
15/9/6kHz roofing filters, the digital noise blanker
gives you full control. When the 1.2kHz Optimum
Roofing Filter is activated, the best blanking levelis automatically selected. Additional adjustmentsallow you to tweak the threshold level, blanktime and attenuation level parameters.

Recorded list display

Memory Keyer
Whether operating phone, CW, RTTY or
PSK31/63, the IC-7851 has a convenient
memory keyer to ease operations. Record yourCQ, station information or other items in one of
8 keyer memories for the CW and digital modes;
4 memories for phone operation. For CW, thememory keyer has timesaving functions like auto
repeat, contest serial number counter and short
Morse number functions. For phone operation,
you have a voice-saving auto repeat function.

Improved Automatic Antenna Tuner
The automatic antenna tuner utilizes tunesetting memories to record the best tuner
configuration for the lowest SWR. This allows
a faster response time when jumping bands ormoving around in the same band.

Internal Antenna Switch
Digital Transmit Bandwidth(TBW) and Audio Equalizer
With the flexibility of DSP-based waveform shaping, transmit and receive audio quality is adjustable to suit your preference. Three user-adjustabletransmit filters, Wide/Mid/Narrow, allow you to
set both the low and high cut-off frequency limits.
(100 – 500Hz for lower and 2500 – 2900Hz forhigher frequencies.) In addition to the TBW filter,
the IC-7851 has an equalizer to digitally tweaks
your transmit audio with separate bass and treble
controls (11 steps each for bass and treble). The
receive audio can be tailored with mode-specificBass/Treble or audio passband settings.

Digital RF Speech Compressor
The DSP controlled RF speech compressor
provides additional punch while maintaining theoriginal tone quality of the operator. The IC-7851
utilizes the 32-bit DSP for the RF speech compressor, providing the maximum punch without
the fuzzy sound. It’s great for breaking through thenoise and hash to complete the QSO.

SD Memory Card Slot
Save operator profiles,
digital voice keyer, CW
memory keyer, RTTY/PSK
l o g s , I C - 7 8 5 1 “ S c re e n
Shots” and various other SD Memory Card Slot
operational settings to your SD Memory card.

With six antenna ports – two receive-only andfour receive/transmit – the IC-7851 enables
the operator to have fingertip control over avast array of antenna configurations. Switch to
80/160m and you want to use your beverageantenna for receive, but transmit on yourvertical. Not a problem: the antenna switch
memory will automatically switch antennas
when you select the band you want to operate. This is very convenient when using the
RS-BA1 for remote base operation.

Enhanced PC Connectivity
The IC-7851 has various computer interfaces,
giving you maximum connectivity between
your computer and radio. Digital modes
become a snap when controlling with the USB
port. USB audio and some CI-V commands
including USB send (DTR/RTS) and USB
keying (CW and RTTY) are selectable. You
can also interface your computer with the S/P
DIF optical digital interface provides audio I/O.
The Ethernet jack allows you to connect the
IC-7851 directly to your router and control yourradio over your wireless Internet, or travel theglobe and operate your station remotely overthe Internet.

Firmware Update Capability
The IC-7851 can grow as feature and function
enhancements become available via the USBor your SD Card.

IP Network

Base station

PC (Remote station)
Windows® PC

Simplified Remote Control (Optional RS-BA1)
Remote base operation is made easy as the IC-7851 operating system incorporates the remote base server software. A computer is not required in
the shack for audio or rig control. Up to three, unique user log-in/password
configurations are part of the internal server. As the rig control has a priority of service, the controls will feel like you are right in front of your rig.
Optional RS-BA1 main features

Other Outstanding Features[Antenna]• BNC t ype RX input/output connectors forreceiver antennas or external attenuators[Receiver]• General coverage receiver covers from 30Hz to
60MHz* (* Some frequency ranges are not guaranteed.)• Two types of preamplifiers:
Preamp 1: improves intermodulation characteristics
Preamp 2: High gain preamp for high bands• A seven step attenuator (3, 6, 9, 12, 18, 21dB and OFF)• A dedicated 50MHz band mixer using a Quad FET• Twin peak filters for better RTTY signal reception[Transmitter]• Speech compressor increases average talkpower (SSB mode)• TX monitor functions• Fifty sub-audible tones (CTCSS) for repeater
access• VOX (Voice operated transmission) capability• All mode power control• Most functions of your transceiver, including interference rejection
functions and IF filter settings, can be controlled.
• The spectrum scope with the waterfall function can be observed.
• Received voice recording function.
• Optional RC-28 USB remote encoder provides a hardware dial/transmit
functions for a realistic dial operation.
• The IC-7851 can wake-up from the standby mode through the RS-BA1 software.
[CW]• DSP controlled CW keying waveform shaping• Multi-function electronic keyer with adjustable
keying speed, dot/dash ratio, keyer type, rise timeand paddle polarity• Electronic keyer speed popup• CW pitch control from 300 to 900Hz (5Hz pitch)• CW reverse mode operation for receiving USB
side signal• Double key jacks for front and rear panels• Full break-in and semi break-in functions• CW/AM auto tuning function helps to zero in on
intended signals within ±500Hz range• Soft and sharp audio filter shapes for the Audio
Peak Filter (APF)[Operation]• Set mode functions for flexible and speedy settings• Memo pads stores up to 10 operating frequencies
and modes• Quick split function and split lock functions• Quick Dualwatch function• SSB/CW synchronous tuning• RIT and ∂TX variable up to 9.999kHz• UTC/Local clock and timer function• 1Hz pitch tuning and display• 101 memory channels with 10-character channel name
• Built-in voice synthesizer announces the operating frequency, mode, and S-meter level• Programmed scan, memor y scan, selectmemory scan, VSC scan and ∂f scan
• Auto tuning step function• Dial lock function• Main dial tension control• Programmable band edge beeps• S/P DIF input/output connectors• BNC type transverter connector• External speaker connectors for Main/Sub receivers• FFT scope waveform averaging function for
PSK and RTTY decoder• Screen saver function

Breaker Switch
Antenna Connectors

Ground Terminal

USB Connector (Type-A) Ethernet Connector (LAN)External Display
S/P DIF In/
Connector (DVI-I)
Main Switch
Out Jacks

Receive Antenna
S-meterKey
ALC Input TX/RX
ACC Socket B
Receive Antenna
Connectors B
OutputJack
Jack Control Jack
Connectors A
Reference Frequency(Relay)Jack
Transverter Jack
ALC Level Pot
External DC
In/Out Jack
CI-V Remote Control Jack
External Keypad Jack
Output JackACC Socket A

External SpeakerJacks

USB Connector(Type-B)

AC Power Cord
Receptacle

6

THE TRANSCEIVERSPECIFICATIONSGENERAL
Frequency coverage*1 (Unit: MHz)
ReceiverTransmit

RECEIVER
Double conversion super-heterodyne system
Intermediate frequencies Main receiver: 64.455MHz/36kHz (1st/2nd)
Sub receiver: 64.555MHz/36kHz (1st/2nd)
Sensitivity (typical)(HF: Pre-amp 1 ON, 50MHz: Pre-amp 2 ON)
Receive system

0.030–60.000*20.1357–0.1378
1.810–1.999
3.500–3.800
7.000–7.200
10.100–10.150 14.000–14.350 18.068–18.168 21.000–21.450
24.890–24.990 28.000–29.700 50.000–52.000

0.1–1.799MHz 1.8–29.990MHz*1 Showing EUR version. Varies according to version. *2 Some frequency bands are not guaranteed.

SSB, CW, RTTY, PSK

Mode
USB, LSB, CW, RTTY, PSK31/63, AM, FM
No. of memory channels 101 (99 regular, 2 scan edges)
SO-239×4 and BNC×2 (50Ω unbalanced (Tuner off))
Antenna connector
Operating temp. range 0°C to +50°C; +32°F to +122°F
Less than ±0.05ppm (0°C to +50°C @ 54MHz, after warm up)
Frequency stability
Frequency resolution 1Hz (minimum)
Power supply requirement 85–265V AC
TX: 800VA (Max. power)
Current drain
RX: 130VA/120VA typ. (Max. audio/standby)
Dimensions (W×H×D, 425×149×435 mm; 16.73×5.87×17.13 in(BW=2.4kHz, at 10dB S/N)

Output power

Modulation system

Spurious emissions

23.5 kg; 51.8 lb
TRANSMITTERSSB/CW/FM/RTTY/PSK: 5–200W
AM: 5–50W
Transverter connector (CW): More than –20dBm
SSB : Digital P.S.N. modulation
AM : Digital low power modulation
FM : Digital phase modulation
HF bands: More than 60dB
50MHz band: More than 70dB
More than 63dB
More than 70dB

Carrier suppression
Unwanted sideband
suppression∂TX variable range±9.999kHz
Microphone impedance 600Ω (8-pin connector)

6.3μV

2μV
0.5μV
(28–29.9MHz)

SINAD)

Squelch sensitivity

50–54MHz
0.13μV
1μV
0.32μV

SSB, CW, RTTY, PSK: Less than 5.6μV (Pre-amp: OFF)
FM: Less than 1μV (Pre-amp: OFF)

Selectivity

AM (BW=6kHz)
FM (BW=15kHz)

Spurious and image
rejection ratio
Audio output power
RIT variable range

Less than
3.6kHz/–60dB

More than
2.4kHz/–3dB

SSB (BW=2.4kHz, sharp)
CW/RTTY/PSK

500Hz/–3dB

700Hz/–60dB

6.0kHz/–3dB
12.0kHz/–6dB

15.0kHz/–60dB
20.0kHz/–60dB

More than 70dB
More than 2.6W (10% distortion, 8Ω load)±9.999kHz
ANTENNA TUNER
HF bands: 16.7Ω to 150Ω unbalanced (VSWR better than 3:1)
50MHz: 20Ω to 125Ω unbalanced (VSWR better than 2.5:1)
HF bands: 8W
50MHz band: 15W
VSWR 1.5:1 or lessLess than 1.0 dB (after tuning)

Matching impedance
range
Minimum operating
power
Tuning accuracy
Insertion loss

Supplied accessories: (* May differs depending on version)

All stated specifications are subject to change without notice or obligation.

OPTIONS

0.16μV–(BW=500Hz, sharp)

projections not included)

Weight (approximate)

AM (BW=6kHz, at 10dB S/N)
FM (BW=15kHz, at 12dB

0.5μV

• Rack mount handles• SD card• AC power cable• Spare fuses• Plugs

Some options may not be available in some countries. Please ask your dealer for details.

HM-36 HAND MICROPHONE

SP-33 EXTERNAL SPEAKER
Wooden box speaker.

SM-30 DESKTOP MICROPHONE

CT-17 CI-V LEVELCONVERTER

IC-PW1/IC-PW1EURO
HF+50MHz 1kW LINEAR AMPLIFIER

SP-34 EXTERNAL SPEAKER

SM-50 DESKTOP

4 audio filters; headphone jack; canconnect to 2 transceivers.
Input impedance: 8Ω Max. input: 5W

MICROPHONE

Automatic antenna tuner and compact detachable controller are standard. 2 exciter inputs and4 antenna connectors are available.

Dynamic microphone with
[UP/DOWN] switches.

RS-BA1 IP REMOTE

RC-28 USB REMOTE ENCODER

CONTROL SOFTWARE

For use with RS-BA1

Windows® based software

Icom, Icom Inc. and Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany,
France, Spain, Russia, Australia, New Zealand, and/or other countries. Windows is either registered trademark or trademark of Microsoft
Corporation in the United States and/or other countries. All other trademarks are the properties of their respective holders.

1-1-32, Kami-minami, Hirano-Ku, Osaka 547-0003, Japan

Phone: +81 (06) 6793 5302

Fax: +81 (06) 6793 0013

www.icom.co.jp/world

12421 Willows Road NE,
Kirkland, WA 98034, U.S.A.
Phone: +1 (425) 454-8155
Fax:+1 (425) 454-1509
E-mail: sales@icomamerica.com
URL: http://www.icomamerica.com

Communication Equipment
Auf der Krautweide 24
65812 Bad Soden am Taunus, Germany
Phone: +49 (6196) 76685-0
Fax:+49 (6196) 76685-50
E-mail: info@icomeurope.com
URL: http://www.icomeurope.com

Zac de la Plaine,
1 Rue Brindejonc des Moulinais, BP 45804,
31505 Toulouse Cedex 5, France
Phone: +33 (5) 61 36 03 03
Fax:+33 (5) 61 36 03 00
E-mail: icom@icom-france.com
URL: http://www.icom-france.com

6F No. 68, Sec. 1 Cheng-Teh Road,
Taipei, Taiwan, R.O.C.
Phone: +886 (02) 2559 1899
Fax:
+886 (02) 2559 1874
E-mail: sales@asia-icom.com
URL: http://www.asia-icom.com

Glenwood Centre #150-6165
Highway 17A, Delta, B.C.,
V4K 5B8, Canada
Phone: +1 (604) 952-4266
Fax:+1 (604) 952-0090
E-mail: info@icomcanada.com
URL: http://www.icomcanada.com

Ctra. Rubi, No. 88 "Edificio Can Castanyer"
Bajos A 08174, Sant Cugat del Valles,
Barcelona, Spain
Phone: +34 (93) 590 26 70
Fax:+34 (93) 589 04 46
E-mail: icom@icomspain.com
URL: http://www.icomspain.com

Unit 1 / 103 Garden Road,
Clayton, VIC 3168 Australia
Phone: +61 (03) 9549 7500
Fax:
+61 (03) 9549 7505
E-mail: sales@icom.net.au
URL: http://www.icom.net.au

No.101, Building 9, Caifuxingyuan Park,
No.188 Maoting Road, Chedun Town,
Songjiang District, Shanghai, 201611, China
Phone: +86 (021) 6153 2768
Fax:
+86 (021) 5765 9987
E-mail: bjicom@bjicom.com
URL: http://www.bjicom.com

Rua Itororó, 444 Padre Eustáquio
Belo Horizonte MG,
CEP: 30720-450, Brazil
Phone: +55 (31) 3582 8847
Fax:
+55 (31) 3582 8987
E-mail: sales@icombrazil.com

Blacksole House, Altira Park,
Herne Bay, Kent, CT6 6GZ, U.K.
Phone: +44 (0) 1227 741741
Fax:+44 (0) 1227 741742
E-mail: info@icomuk.co.uk
URL: http://www.icomuk.co.uk

39C Rennie Drive, Airport Oaks,
Auckland, New ZealandPhone: +64 (09) 274 4062
Fax:
+64 (09) 274 4708
E-mail: inquiries@icom.co.nz
URL: http://www.icom.co.nz

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