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SPECIFICATIONS

TRANSMITTER

RECEIVER

ANTENNA TUNER

GENERAL

Mode
No. of memory channels
Antenna connector
Operating temp. range
Frequency stability
Frequency resolution
Power supply requirement
Current drain

Dimensions 

(W×H×D,

projections not included)

Weight (approximate)

Receive system

Intermediate frequencies

Sensitivity (typical)

Squelch sensitivity

Selectivity

Spurious and image
rejection ratio
Audio output power
RIT variable range

Output power

Modulation system

Spurious emissions

Carrier suppression
Unwanted sideband
suppression

TX variable range

Microphone impedance

Matching impedance
range
Minimum operating
power
Tuning accuracy 
Insertion loss

USB, LSB, CW, RTTY, PSK31/63, AM, FM
101 (99 regular, 2 scan edges)
SO-239

×

4 and BNC

×

2 (50

Ω

 unbalanced (Tuner off))

0°C to +50°C; +32°F to +122°F
Less than ±0.05ppm 

(0°C to +50°C @ 54MHz, after warm up)

1Hz (minimum)
85–265V AC
TX: 800VA (Max. power)
RX: 130VA/120VA typ. (Max. audio/standby)
425×149×435 mm; 16.73×5.87×17.13 in

23.5 kg; 51.8 lb

Double conversion super-heterodyne system
Main receiver: 64.455MHz/36kHz (1st/2nd)
Sub receiver: 64.555MHz/36kHz (1st/2nd)

(HF: Pre-amp 1 ON, 50MHz: Pre-amp 2 ON)

SSB, CW, RTTY, PSK: Less than 5.6μV 

(Pre-amp: OFF)

 

FM: Less than 1μV 

(Pre-amp: OFF)

More than 70dB

More than 2.6W (10% distortion, 8

Ω

 load)

±9.999kHz

SSB/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 

±9.999kHz
600

Ω

 (8-pin connector)

HF bands: 16.7

Ω

 to 150

Ω

 unbalanced 

(VSWR better than 3:1)

50MHz: 20

Ω

 to 125

Ω

 unbalanced 

(VSWR better than 2.5:1)

HF bands: 8W
50MHz band: 15W
VSWR 1.5:1 or less
Less than 1.0 dB (after tuning)

(Unit: MHz)

Receiver

Transmit

1.800–1.999

10.100–10.150

24.890–24.990

3.500–3.999

14.000–14.350
28.000–29.700

5.255–5.405*

2

18.068–18.168

50.000–54.000

7.000–7.300

21.000–21.450

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

OPTIONS

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 LEVEL 

CONVERTER

RS-BA1 

IP REMOTE

CONTROL SOFTWARE 

Windows

®

 based software

RC-28 

USB REMOTE ENCODER

For use with RS-BA1

Frequency coverage*

1

0.030–60.000*

2

*

1

 Showing USA version. Varies according to version. *

Some frequency bands are not guaranteed.

SSB, CW, RTTY, PSK

(BW=2.4kHz, at 10dB S/N)

AM 

(BW=6kHz, at 10dB S/N)

FM 

(BW=15kHz, at 12dB

SINAD)

 

SSB 

(BW=2.4kHz, sharp)

CW/RTTY/PSK 

(BW=500Hz, sharp)

AM 

(BW=6kHz)

 

FM 

(BW=15kHz)

0.1–1.799MHz

0.5μV

6.3μV

More than

2.4kHz/–3dB

500Hz/–3dB

6.0kHz/–3dB

12.0kHz/–6dB

Less than

3.6kHz/–60dB

700Hz/–60dB

15.0kHz/–60dB
20.0kHz/–60dB

1.8–29.990MHz

0.16μV

2μV

0.5μV

(28–29.9MHz)

50–54MHz

0.13μV

1μV

0.32μV

SM-50 

DESKTOP 

MICROPHONE

IC-PW1/IC-PW1EURO

HF+50MHz 1kW LINEAR AMPLIFIER

SP-34 

EXTERNAL SPEAKER

Automatic antenna tuner and compact detach 
able controller are standard. 2 exciter inputs and 
4 antenna connectors are available.

4 audio filters; headphone jack; can 
connect to 2 transceivers.
Input impedance: 8

Ω

 

Max. input: 5W

Dynamic microphone with 
[UP/DOWN] switches.

Supplied accessories: 

(* May differs depending on version)

 

• 

Rack mount handles

 

• SD card 

• AC power cable  • Spare fuses 

• Plugs

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

Count on us!

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:  [email protected]
URL:   http://www.icomamerica.com

Unit 1 / 103 Garden Road,
Clayton, VIC 3168 Australia
Phone:  +61 (03) 9549 7500
Fax:  

+61 (03) 9549 7505 

E-mail:  [email protected]
URL:   http://www.icom.net.au

Blacksole House, Altira Park, 
Herne Bay, Kent, CT6 6GZ, U.K.
Phone:  +44 (0) 1227 741741
Fax:  

+44 (0) 1227 741742

E-mail:  [email protected]
URL:   http://www.icomuk.co.uk

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:  [email protected]
URL:   http://www.icom-france.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:  [email protected]
URL:   http://www.icomspain.com

39C Rennie Drive, Airport Oaks,
Auckland, New Zealand
Phone:  +64 (09) 274 4062
Fax:  

+64 (09) 274 4708

E-mail:  [email protected]
URL:   http://www.icom.co.nz

Glenwood Centre #150-6165 
Highway 17A, Delta, B.C., 
V4K 5B8, Canada
Phone:  +1 (604) 952-4266
Fax:  

+1 (604) 952-0090

E-mail:  [email protected]
URL:   http://www.icomcanada.com

Your local distributor/dealer:

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:  [email protected]
URL:   http://www.asia-icom.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:  [email protected]

Communication Equipment
Auf der Krautweide 24
65812 Bad Soden am Taunus, Germany
Phone:  +49 (6196) 76685-0
Fax:  

+49 (6196) 76685-50

E-mail:  [email protected]
URL:   http://www.icomeurope.com

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:  [email protected]
URL:   http://www.bjicom.com

15HS0100   © 2015 Icom Inc.

Printed in Japan

THE 

TRANSCEIVER

Summary of Contents for IC-7851

Page 1: ...THE TRANSCEIVER...

Page 2: ...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 D...

Page 3: ...ssive 20dB improvement is seen with the IC 7851 s 10 kHz measure ment and more than 30dB improvement at a 1 kHz measurement in com parison to the IC 7800 Phase Noise Characteristics Comparisons Receiv...

Page 4: ...r filtering by watching filtering adjustments take out interfering signals including filter width and notch filter placement The processing power in the IC 7851 allows for dual mini band scopes as wel...

Page 5: ...851 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 dete...

Page 6: ...eble The receive audio can be tailored with mode specific Bass Treble or audio passband settings Digital Twin PBT Passband Tuning Once the IF filters have been tweaked the op erator has additional con...

Page 7: ...synthesizer announces the operat ing frequency mode and S meter level Programmed scan memory scan select memory scan VSC scan and f scan Auto tuning step function Dial lock function Main dial tension...

Page 8: ...V 2 V 0 5 V 28 29 9MHz 50 54MHz 0 13 V 1 V 0 32 V SM 50 DESKTOP MICROPHONE IC PW1 IC PW1EURO HF 50MHz 1kW LINEAR AMPLIFIER SP 34 EXTERNAL SPEAKER Automatic antenna tuner and compact detach able contr...

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