Icom IC-7851 User manual

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 eorts.
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 spec-
trum 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

Competitive Advantage: Reciprocal Mixing Dynamic Range
Reciprocal Mixing Dynamic Range
RMDR: 110dB
Raising the Bar
IC-7851 IC-7800
IC-7851 IC-7800
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 noise
that degrades the target signal due to the sum of the entire signal pres-
ent. The result was a RMDR of 110dB*. Below is a comparison of the
improvement over the IC-7800.
RMDR
RMDR (Reciprocal Mixing Dynamic Range) is the relative level of an
undesired 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 a
wanted signal.
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 in
both receive and transmit signals.
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 measure-
ment and more than 30dB improvement at a 1 kHz measurement in com-
parison to the IC-7800.
Phase Noise Characteristics Comparisons
Receiving Frequency: 14.2 MHz Mode: CW 1st LO frequency: 78.655 MHz
LO C/N Characteristics Comparisons
Crystal Clear LO (Local Oscillator) Design
1.2kHz Optimum Roofing Filter
Optimum Roofing Filter Characteristic Diagram
Optimum Roofing Filter
Despite the trend to switch to a down conversion
or a hybrid conversion receive design, Icom
believes in the solid performance of the
up-conversion design. In an up-conversion
receiver, suppression of image interference and
reduce distortion from electric components is
easily overcome. A flat consistent performance
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 devel-
oped filter overcomes the gap of a narrower roofing filter in an
up-conversion receiver.
* 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
RMDR(dB)
IC-7851
IC-7800
1kHz
110
78
2kHz
116
87
10kHz
121
106
20kHz
124
112
1 kHz 10 kHz 100 kHz 1 MHz100 Hz 10 MHz
-160
-150
-140
-130
-120
-110
-100
-90
-80
Frequency Offset
-70 dBc/Hz -70 dBc/Hz
1 kHz 10 kHz 100 kHz 1 MHz100 Hz 10 MHz
Frequency Offset
Receiving Frequency: 14.2 MHz Mode: CW 1st LO frequency: 78.655 MHz
SPAN = 20 kHz, RBW = 30 Hz, VBW = 10 Hz
-160
-150
-140
-130
-120
-110
-100
-90
-80
-10
0
-20
-30
-40
-50
-60
-70
-80
-90
-100
-10
0
-20
-30
-40
-50
-60
-70
-80
-90
-100
2

Twice the Speed,
Sensitivity, Resolution
and More Control
Scope DSP
TMS320C6745 by Texas Instruments
32-bit floating point
2250 MFLOPS
370 MHz clock speed
Mini spectrum scope and audio scope Mini dual spectrum scope and audio 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 signifi-
cantly faster sweep speeds and better accuracy than in the IC-7800.
Spectrum Scope
Improved Spectrum Scope
The waterfall display captures signal strengths over time. This allows
you to see signals that may not be apparent on a normal scope. Addi-
tionally, the combination of the scope attenuator and the wide screen
mode gives you a better view of
weaker signals as band conditions
change. For the ultimate scope
enhancement, the IC-7851 has a
digital video interface (DVI-I) for a
larger display.
High Resolution Spectrum Waterfall Display
By connecting a human interface device (such as a USB mouse, trackball or
touchpad) to the USB port on the rear panel, you gain control over the spec-
trum display pointer for “Click-and-Listen” receiver control. Fix/Center mode,
sweep speed and other settings are controllable.
Click Control
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 the
power of your 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 well as the audio scope.
Span Width
Resolution *1
Sweep Speed
Display Dynamic Range
Noise Floor Level
IC-7851
5kHz–1000kHz
1 pixel minimum *2
29.3 frames/Sec *3
100dB
–30dBμ
IC-7800
5kHz–1000kHz
20 pixels minimum *4
4 frames/Sec *3
80dB
–19dBμ
*1Number of dots shown at the 60 dB level, when receiving a signal.
*2SPAN = More than 20 kHz, SPEED = Slow
*3SPAN = Less than 20 kHz, SPEED = Fast
*4SPAN = 500 kHz, SPEED = Slow
Spectrum scope with waterfall
(wide screen setting)
• 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
• 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)
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 or band openings in
contests, or working all bands/modes on a DXpedition.
Dual Scope Function
Scope Comparison
Specifications for the audio scope Specifications for the oscilloscope
<For example>
• Left click to change operating frequency
• Click a button (either left or right) and move
right 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.
3

REF 0.0 dBm MKR 14.16 MHzDL −30.0 dBm
10 dB/
0dB
−8.73dBm*A_Write Norm B_Blank Norm
START 0 Hz STOP 30.00 MHz
RBW 300 kHz VBW 300 kHz SWP 200ms ATT 10 dB
MARKER
1 4 . 1 6 MHz
Premium components yield
premium performance
The IC-7851 continues the +40dBm, 3rd order
intercept point and 110dB receiver dynamic
range benchmark set by the IC-7800. To
achieve this superb receiver performance, the
entire analog circuitry and components have
been re-engineered to match the DSP units. A
newly designed LO amplifier generates high
output while keeping flat frequency characteris-
tics over a 60MHz wide range.
BPF unit
Triple DSP Power
Digi-Sel Preselector
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 re-
moves secondary
distortion products
from the primary
stage of signal
processing.
1. 2 k H z
Optimum Roofing Filter
3, 6, 15kHz
High-Spec 1st IF filters
Automatic Preselector
High Performance OCXO Unit
The IC-7851 uses the
OCXO (Oven Control
Crystal Oscillator) unit
which is stable to
within ±0.05ppm at
0°C to 50°C. This
specification means
that even on the 50MHz band, frequency error
is less than 2.5Hz! In addition, a 10MHz refer-
ence frequency can be input and output for
accurate tuning.
OCXO unit
PA unit and heat sink
The push-pull power
amplifiers using
power MOS-FETs
work on 48V DC.
They provide a pow-
erful 200W output
power at full duty
cycle and low transmit intermodulation. An
effective cooling system maintains internal
temperatures within a safe range and
prevents thermal runaway.
200W Output Power
at Full Duty Cycle
Solid Aluminum Main Dial Knob
Basic Functions
The main dial tuning
knob is pure functional
beauty. Machined
from a solid aluminum
block, the main dial
tuning knob gives you
a solid operational feel. The diamond engraved
accents are cosmetic perfection – expected
only from a radio of this caliber.
Dynamic Range (dB)
Spacing
Roofing
Filter
Bandwidth
IC-7851
1kHz
100
99
15kHz
1. 2 k H z
2kHz
101
105
5kHz
104
111
20 kHz
114
113
Dynamic Range Characteristics
Three separate 24-bit AD/DA converters and
dedicated 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 and transmit circuits,
there is plenty of DSP power for the most
demanding RF environment.
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 and draws the full
potential from the digital IF filter.
Combining the digital IF filter,
manual notch, and the 1st IF stage,
these are all controlled by the DSP
unit. 110dB of ultra wide dynamic
range in the receiver means the IF
amplifier is distortion free from
strong signals.
Dual AGC Loops
Simple receiver system configuration is the
best way to eliminate sources of the spurious
signals and distortion from transceivers. The
IC-7851 uses a double conversion system com-
posed of a D-MOS FET 1st mixer and image
rejection mixer for the 2nd stage. The 1st mixer
stage is driven with a signal 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. This system
provides wide dynamic range, reducing the dis-
tortion from strong signals and lower intermodu-
lation.
Image Rejection Mixer
BPF
AGC Loop line
A/D
D/A
AGC
DET
AGC
DET
AGC
DET
AGC
DET
AGC
DET
AGC
DET
2nd Mixer (Image Rejection Mixer) Receiver DSP Unit
AMP
AMP
AMP
IF
AMP
IF
AMP
IF
AMP
IF
AMP
IF
AMP
IF
AMP
IF
AMP
IF
AMP
IF
AMP
90 degrees
Phase shifter
90 degrees
Phase shifter
90 degrees
Phase shifter
Transmit/
Receiver DSP (left) and
Receiver DSP (right)
ADSP-21489
by Analog Devices
32-bit floating point DSP
2400 MFLOPS
393 MHz clock speed
The preselector
works between
1.5MHz and 30MHz
and rejects distortion
components derived
from out of band
interference such
as multi-multi operation or strong broadcast sta-
tions. It automatically tracks the intended signal
keeping the preselector’s bandwidth centered on
the operating frequency. The center frequency of
the preselector is manually adjustable from the
DIGI-SEL tuning knob on the front panel.
Intercept Point
+40dBm IP3
Dynamic range 110dB
Antenna Terminal input
Receiver output
Noise Floor
level
+40dBm IP3
(3rd Order Intercept Point)
BPF Switching:
Mechanical Relays
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 select
the filter width from 15kHz, 6kHz, 3kHz and
1.2kHz, depending on your operating mode.
(FM mode is fixed at 15kHz)
Four 1st IF “Roofing” Filters
Dynamic Range (typical)
Automatic Preselector bandwidth characteristics
At 14 MHz band
4

RTTY mode display
RTTY, PSK31 as well as the new PSK63 modes
are available at your fingertips 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 a snap and communications logs
can be stored on an SD memory card.
SD Memory Card Slot
The DSP controlled RF speech compressor
provides additional punch while maintaining the
original tone quality of the operator. The IC-7851
utilizes the 32-bit DSP for the RF speech compres-
sor, providing the maximum punch without the fuzzy
sound. It’s great for breaking through the noise and
hash to complete the QSO.
Operational functionality
for the most advanced operators
Digital RF Speech Compressor
Improved Automatic Antenna Tuner
Save operator profiles,
digital voice keyer, CW
memory keyer, RTTY/PSK
logs, IC-7851 “Screen
Shots” and various other
operational settings to your SD Memory card.
The automatic antenna tuner utilizes tune-
setting memories to record the best tuner
configuration for the lowest SWR. This allows
a faster response time when jumping bands or
moving around in the same band.
Filter preset screen
Recorded list display
Digital Voice Recorder
The digital voice recorder captures both receive
and transmit audio to your SD or USB storage de-
vices. 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.
RTTY/PSK31 and PSK63
SD Memory Card Slot
New Auto Digital Noise Blanker
While most noise blanker reduces pulse type noise,
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 level is automatically selected. Ad-
ditional adjustments allow you to tweak the threshold
level, blank time and attenuation level parameters.
Variable Level Noise Reduction
The digital noise reduction separates a target
signal from noise components and noise sup-
pression level is variable in 16 -steps, depending
on the noise level. The low latency digital noise
reduction is achieved by applying an adaptive
filter using the high speed DSP computing power.
Firmware Update Capability
The IC-7851 can grow as feature and function
enhancements become available via the USB or
your SD Card.
Digital Transmit Bandwidth
(TBW) and Audio Equalizer
With the flexibility of DSP-based waveform shap-
ing, transmit and receive audio quality is adjust-
able to suit your preference. Three user-adjustable
transmit filters, Wide/Mid/Narrow, allow you to
set both the low and high cut-off frequency limits.
(100 – 500Hz for lower and 2500 – 2900Hz for
higher 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-specific
Bass/Treble or audio passband settings.
Digital Twin PBT
(Passband Tuning)
Once the IF filters have been “tweaked,” the op-
erator has additional control with the digital twin
passband tuning (PBT). The digital twin PBT
allows flexibility of both the IF shift and narrowing
of the digital IF passband by moving the IF pass-
band. With the digital IF filters, PBT performance
allows you to cut away all the interference and
noise to hear the actual signal.
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 the
performance of the first receiver is duplicated
for a perfectly matched set of “Twins”. When con-
nected to external stereo headphone, main and
sub receiver audio can be mixed or separated to
the right and left.
Digital Manual Notch
HF operators marvel at how well DSP reduces
interfering signals and noise. Signals such as
heterodynes and AM Carriers can be eliminated
with automatic notch filter technology. Making
interference from RF sources such as beat
signals and RTTY signals is a thing of the past.
Additionally, the filter shape of the manual notch
can be adjusted in three steps – with more than
70dB of attenuation!
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 perfect
sound. Save these settings in three user-defined
filter presets, Wide/Mid/Narrow, by mode to give
you full customization of your filters.
Manual Notch Filter Characteristics
Basic Functions
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 your radio over your
wireless Internet, or travel the globe and operate
your station remotely over the Internet.
Internal Antenna Switch
With six antenna ports – two receive-only and four
receive/transmit – the IC-7851 enables the opera-
tor to have fingertip control over a vast array of an-
tenna configurations. Switch to 80/160m and you
want to use your beverage antenna for receive,
but transmit on your vertical. 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.
Memory Keyer
Whether operating phone, CW, RTTY or
PSK31/63, the IC-7851 has a convenient memory
keyer to ease operations. Record your CQ, station
information or other items in one of 8 keyer
memories for the CW and digital modes; 4 memo-
ries for phone operation. For CW, the memory
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.
Middle
Narrow
Wide
5

Ethernet Connector (LAN)
Other Outstanding Features
[Antenna]
• BNC type RX input/output connectors for
receiver 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 talk
power (SSB mode)
• TX monitor functions
• Fifty sub-audible tones (CTCSS) for repeater
access
• VOX (Voice operated transmission) capability
• All mode power control
Base station
[CW]
• DSP controlled CW keying waveform shaping
• Multi-function electronic keyer with adjustable
keying speed, dot/dash ratio, keyer type, rise time
and 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 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 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
Main Switch
AC Power Cord
Receptacle
S/P DIF In/
Out Jacks
USB Connector (Type-A)
External Display
Connector (DVI-I)
Breaker Switch
Ground Terminal
ALC Level Pot
Antenna Connectors
Reference Frequency
In/Out Jack
Receive Antenna
Connectors B
Transverter Jack
Receive Antenna
Connectors A
CI-V Remote Control Jack
S-meter
Output
Jack
External Keypad Jack
Key
Jack
ALC Input
Jack
TX/RX
Control Jack
(Relay)
ACC Socket B ACC Socket A
USB Connector
(Type-B)
External DC
Output Jack
External Speaker
Jacks
• Most functions of your transceiver, including interference rejection func-
tions and IF filter settings, can be controlled. Also, received signal strength
and SWR can be observed on the computer display.
• Received voice recording function.
• Optional RC-28 USB remote encoder provides a hardware dial/transmit func-
tions for a realistic dial operation.
•
The IC-7851 can wake-up from the standby mode through the RS-BA1 software.
IP Network
PC (Remote station)
Windows®PC
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.
Simplified Remote Control (Optional RS-BA1)
Optional RS-BA1 main features
6

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 (50Ωunbalanced (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
600Ω(8-pin connector)
HF bands: 16.7Ωto 150Ωunbalanced (VSWR better than 3:1)
50MHz: 20 Ωto 125Ωunbalanced (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
*1Showing USA version. Varies according to version. *2 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: 8ΩMax. 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
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THE TRANSCEIVER