ICOM IC-756PRO
Features and Specifications
This information is subject to change without notice or obligation
IC-756PRO FEATURES
A newly designed 32-bit floating point DSP This refined DSP provides
noise reduction and auto notch, plus the following new features:
- AGC loop operation - IF filter and notch circuits are included
into DSP loop, which allows wider dynamic range.
- Digital IF filter - with 51 selectable bandwidths. In order to
apply PSK-31 and other digital operation modes, it is possible to make
the bandwidth for SSB filter to 50Hz.
- Low distortion, RF type speech compressor - Transmit bandwidth
is selectable: 2.0kHz, 2.6kHz, and 2.9kHz.
- Built-in RTTY demodulator / dual peak APF. - An RTTY (baudot)
demodulator and decoder circuit are built-in. 2 peak frequencies can be
selected by setting the shift width for RTTY operation. The receive
character for RTTY appears on the screen.
- Microphone equalizer - A total of 121 AF characteristics are
selectable
- Manual notch function - attenuation level: 70 dB
Noise reduction function - variable rejection level
- TFT 5 inch color LCD - A first in HF transceivers! Provides a
wider viewing angle and increased display of information. The following
items are displayed on the LCD:
- Dual frequency display
- Memory frequency and memory name
- IF filter bandwidth
- RTTY tuning indicator / received character
- Real-time spectrum scope
- Voice memory / CW memory keyer contents
- 8 channel digital voice memory function - up to 15 seconds, 4
channels for transmit and 4 channels for receive
- Digital twin pass band tuning (PBT) - digitally narrows the
passband width at the DSP to efficiently eliminate interfering signals.
Operating the PBT at the DSP allows sharper, superior passband width
characteristics for removal of unwanted signals.
- Real-time spectrum scope - selectable sweep range: ±12.5 kHz,
±25kHz, ±50kHz, ±100kHz
- Dual watch - the IC-756PRO can receive 2 signals on the same
frequency band simultaneously. Conveniently monitor a DX station while
operating on another frequency.
- Triple band stacking register
- Built-in memory keyer
- Built-in automatic antenna tuner - covers 50MHz
- Built-in Electronic keyer
IC-756PRO SPECIFICATIONS
GENERAL
- RX: 0.5 ~ 29.995MHz, 50 ~ 54MHz (working range: 0.3 ~ 60MHz)
- TX: 1.9, 3.5, 7, 10, 14, 18, 21, 24, 28 and 50 MHz amateur band
- Mode: USB, LSB, CW, RTTY, AM, FM
- Frequency stability: within ±1 ppm (60 minutes after power on), ±7
ppm (within first 60 minutes after power on)
- Number of memory channels: 101
- Frequency resolution: 1Hz
- Current drain: DC13.8V ±15%, Max 23A
- Dimensions: 340(W) x 111(H) x 285(D) mm; 13.37(W) x 4.37(H) x 11.22(D)
in (projections not included)
- Weight: 9.6 kg; 21.2 lb.
TRANSMIT
- Output power: SSB/CW/RTTY/FM: 5 ~ 100 W variable, AM: 5 ~ 40 W variable
- Modulation system:
- SSB: PSN modulation
- AM: Digital low power modulation
- FM: Digital phase modulation
- Spurious emissions: less than -50 dB (HF), -60 dB (50MHz)
- Carrier supression: more than 40 dB
- Unwanted sideband supression: more than 55 dB
RECEIVE
- Receive system: Triple superheterodyne
- Sensitivity:
SSB, CW, RTTY (10 dB S/N): |
-0.16 dBµ |
1.80-29.99 MHz |
preamp 1 on |
|
-0.18 dBµ |
50.0-54.0 MHz |
preamp 2 on |
AM (10 dB S/N): |
+22 µ |
0.5-1.799 MHz |
preamp off |
|
+6µ |
1.80-29.99 MHz |
preamp 1 on |
|
+0µ |
28.0-29.99 MHz |
preamp 2 on |
FM (12 dB SINAD): |
-6µ |
28.0-29.99 MHz |
preamp 1 on |
|
-10µ |
50.0-54.0 MHz |
preamp 2 on |
SSB (2.4kHz): |
2.48kHz/-6 dB |
2.7kHz/-60 dB |
CW (500Hz): |
510Hz/-6 dB |
650Hz/-60 dB |
RTTY (350Hz): |
380Hz/-6 dB |
510Hz/-60 dB |
AM (6kHz): |
6.5kHz/-6 dB |
14.7kHz/-60 dB |
FM (15kHz): |
14.4kHz/-6 dB |
18.8kHz/-60 dB |
- AF output: More than 2.0 W with an 8 ohm load
IC-775DSP SPECIFICATIONS
GENERAL
- Frequency Coverage:
- Receive
- 100khz-29.990 MHz
- Transmit
- 1,800-1.999999 MHz*1
- 3,500-3.999999 MHz*2
- 7,000-7,3000 MHz*3
- 10,100-10,150 MHz
- 14,000-14,350 MHz
- 18,068-18,168 MHz
- 21,000-21,450 MHz
- 24,890-24-990 MHz
- 28,000-29,700 MHz
-
- *11,830-1,850 for Spain version;
1,810-1,850 for France version;
1,815-1,835/1,850-1,890 for Germany version
- *23,500-3,800 for Spain, France
and Germany versions
- *37,000-7,100 for Spain, France
and Germany versions
- Mode: SSB, CW, AM, FM, RTTY
- Number of memory channels: 101(99 regular, 2 scan edges)
- Antenna impedance : 50 ohms nominal
- Usable temperature range : -10°C to 60°C (14°F
to140°F)
- Frequency stability: Less than ±200 Hz from 1 min. to 60 min. after
power ON. After that rate of stability less than ±30 Hz/hr. at + 25°C
(+77°F). Temperature fluctuations O°C to +50°C
(+32°F to + 122°F) less than ±350 Hz
- Power supply requirement: 120 V Type 85-135 V AC 230 V Type 187-265 V
AC (switchable)
- Power consumption:
- Transmit
- max. power 760 VA
- Receive
- squelched 140 VA
- max. audio 150 VA
- Dimensions:
- 424(W) X 150(H) X 390(D) mm
- 16 11/16(W) X 5 29/32(H) X 15 11/32(D) in
- Weight: IC-775DSP 16.7 kg (36.8 lb), IC-775 16.5 kg (36.4 lb)
Transmitter
- Output power: SSB/SW/RTTY/FM 5-200 W
AM 5-50 W
(continuously adjustable)
- Spurious emissions : Less than -60 dB
- Carrier suppression : More than 40 dB
- Unwanted sideband suppression : More than 55 dB
- Microphone impedance : 600 ohms
Receiver
- Receive system
- ;SSB, CW, RTTY, AM: Quadruple conversion superheterodyne
- FM: Triple conversion superheterodyne
- Intermediate frequencies
MODE |
SSB |
CW,RTTY |
AM |
FM |
1st |
69.0115 MHz |
69.0106 MHz |
69.0100 MHz |
69.0100 MHz |
2nd |
9.0115 MHz |
9.0106 MHz |
9.0100 MHz |
9.0100 MHz |
3rd |
455 kHz |
455 kHz |
455 kHz |
455 kHz |
4th |
10.695 MHz |
10.695 MHz |
10.695 MHz |
- |
- Sensitivity (Preamp 1 On)
SSB, CW, RTTY |
100 - 500 kHz |
Less than 2.0 µV |
(10 dB S/N) |
1.8 - 29.9 MHz |
Less than 0.16 µV |
AM (10 dB S/N) |
0.5 - 1.8 MHz |
Less than 13.0 µV |
|
1.8-29.99 MHz |
Less than 2.0 µV |
FM (12 dB SINAD) |
28-29.99 MHz |
Less than 0.5 µV |
- Squelch Sensitivity (Preamp 1 ON)
SSB, CW, RTTY, AM |
Less than 3 2 µV at threshold |
FM |
Less than 0 32 µV at threshold |
- Selectivity (normal filter selection)
SSB |
More than 2 4 kHz/- 6 dB |
|
Less than 4 0 kHz/ -60 dB |
CW, RTTY |
More than 500 Hz/-6 dB |
|
Less than 1 0 kHz/-60 dB |
AM |
More than 2 4 kHz/-6 dB |
|
Less than 4 0 kHz/-60 dB |
FM |
More than 15.0 kHz/-6 dB |
|
Less than 30.0 kHz/-60 dB |
- Spurious and image rejection ratio: More than 70 dB
- Audio output power: More than 2 6 W at 10% distortion with an 8-ohm
load
- RIT/TX (variable range) ±9.999 kHz
ANTENNA TUNER
- Matching impedance range : 16.7 - 150 ohms unbalanced (Less than VSWR 3
: 1)
- Minimum operating input power: 8 W
- Tuning accuracy : VSWR 1.5 : 1 or less
- Insertion loss : Less than 1.0 dB (after tuning)
All stated specifications are subject to change without notice or
obligation.
OPTIONS
- IC-4KL HF 1 kW LINEAR AMPLIFIER This is an all
solid-state, full-duty 1 kW linear amplifier including an automatic
antenna tuner. The IC-4KL is fully controllable from the IC-775/DSP. No
need to tune and no need to switch the operating band. Full break-in (QSK)
operation is possible. The amplifier/power supply unit and the remote
control unit are separated.
- IC-2KL HF 500 W LINEAR AMPLIFIER This is an all
solid-state 500 W linear amplifier. The power amplifier unit can be
separately set-up from the power supply unit.
- IC-AT500 500 W automatic antenna tuner. Best match for
the IC-775/DSP with the IC-2KL. Includes an automatic antenna selector for
4 separate antennas.
- EX-627 AUTOMATIC ANTENNA SELECTOR Automatically
selects the antenna for the selected ham band. Manual selection is also
possible. Max. input power: 1000 W PEP
- MB-19 Mounting handles for 19-inch rack.
- SP-20 4 Audio filters; headphone jack; can connect to
2 transceivers; style/size matched to the IC-775/DSP. Input impedance:
8ohms. Max. input power: 5 W.
- SP-21 Designed for base station operation. Input
impedance: 8ohms. Max. input power: 5 W.
- SM-20 Unidirectional, electret microphone for base
station operation. Includes (UP)/(DOWN) switches and a low cut function.
- SM-8 Electret condenser-type desktop microphone
including 2 connection cables for simultaneous connection of 2
transceivers. (UP)/(DOWN) switches are included.
- CT-16 Easy tuning when connecting another Icom HF or
V/Uhf transceiver for instant satellite communications.
- CT-17 For remote transceiver control using a personal
computer equipped with an RS-232C port. You can change frequencies,
operating mode, memory channels, etc.
- HM-36 Hand microphone equipped with (UP)/(DOWN)
switches.
- CR-282 Contains a temperature-compensating oven heater
and crystal unit for improved frequency stability. Frequency stability: ±
0.5 ppm
- UT-66 Announces operating frequency and mode.
- UI-100 Enables several digital functions, such as
noise reduction, for the IC-775 (non-DSP type). Already installed in the
IC-775DSP.
- FL-101, FL-102, FL-223 9 MHz FILTERS Have good shape
factor and provide you with better reception.
- FL-101: 250 Hz/-6dB (CW nar.)
- FL-102: 6.0 kHZ/-6dB (SSB wide/AM med./FM nar.)
- FL-223: 1.9 kHz/-6 dB (SSB nar.)
- FL-53A and FL-222455 kHz FILTERS Have good shape
factor and provide you with better reception.
- FL-53A: 250 Hz/-6 dB (CW nar.)
- FL-222: 1.9 kHz/-6 dB (SSB nar.)
IC-781 SPECIFICATIONS
GENERAL
- Frequency Coverage:
- Receive: 0.1 ~ 30.0 MHz
- guaranteed range 500 kHz ~ 30 MHz
- Transmit:
- 160-m band 1.8 ~ 2.0 MHz
- 80-m band 3.5 ~ 4.0 MHz
- 40-m band 7.0 ~ 7.3 MHz
- 30-m band 10.1 ~ 10.15 MHz
- 20-m band 14.0 ~ 14.35 MHz
- 17-m band 18.068 ~ 18.168 MHz
- 15-m band 21.0 ~ 21.45 MHz
- 12-m band 24.89 ~ 24.99 MHz
- 10-m band 28.0 ~ 29.7 MHz
- Modes: A3J (SSB),A1 (CW),F3 (FM), F1 (RTTY), A3 (AM)
- Frequency step: 10 Hz (with [TS] OFF); 1 Hz (with [TS] ON)
- Antenna impedance (with [TUNER] OFF): 50 ohms (unbalanced)
- Power Supply Requirement: 100 ~ 120 V AC (U.S.A. version); 220 ~ 240 V
AC (Australia,Europe,France versions)
- Power consumption:
- Receiving maximum. audio: 150 VA; standby: 140 VA
- Transmitting maximum.: 760 VA; minimum: 325 VA
- Usable Temperature Range: -10°C to +60°C; +14°F to +140°F
- Frequency stability: ±15 Hz (-10°C to +60°C; +14°F to +140°F)
- Dimensions: 425(W) x 149(H) x 411(D) mm, 16.7(W) x 5.9(H) x 16.2(D) in
- Weight: 23 kg; 50.7 lb.
Transmitter
- Maximum output power:
- SSB: 150 W PEP
- CW,RTTY,FM: 150 W
- AM: 75 W
- Modulation system:
- SSB: balanced modulation
- FM,RTTY: reactance frequency modulation
- AM: low level modulation
- Maximum frequency deviation: ±5 kHz
- RTTY shift width: 170 Hz, 425 Hz, 850 Hz selectable
- Spurious emissions: Less than -60 dB
- Carrier supression: Less than -40 dB
- Unwanted sideband: Less than -55 dB (with 1 kHz modulation)
- Microphone impedance: 600 ohms
Receiver
- Receive system:
- SSB,CW,AM,RTTY: Quadruple-conversion superheterodyne
- FM: Triple-conversion superheterdyne
- Intermediate frequencies:
Mode |
1st |
2nd |
3rd |
4th |
SSB |
46.5115 MHz |
9.0115 MHz |
455 kHz |
10.6950 |
CW,RTTY |
46.5106 MHz |
9.0106 MHz |
455 kHz |
10.6950 |
AM |
46.5100 MHz |
9.0100 MHz |
455 kHz |
10.6950 MHz |
FM |
46.5100 MHz |
9.0100 MHz |
455 kHz |
- Sensitivity (preamp ON):
- SSB, CW, RTTY (for 10 dB S/N):
- 0.1 ~ 0.5 MHz Less than 0.5 µV
- 0.5 ~ 1.8 MHz Less than 1.0 µV
- 1.8 ~ 30 MHz Less than 0.16 µV
- AM (for 10 dB S/N):
- 0.1 ~ 0.5 MHz Less than 3.2 µV
- 0.5 ~ 1.8 MHz Less than 6.3 µV
- 1.8 ~ 30.0 MHz Less than 1.0 µV
- FM (for 12 dB SINAD):
- 28 ~ 30.0 MHz Less than 0.23 µV
- FM squelch sensitivity: 28 ~ 30 MHz Less than 0.23 µV
- Selectivity:
- SSB, CW-W, RTTY-W, AM-N: More than 2.4 kHz/-6 dB ; Less than 3.8
kHz/-60 dB
- CW-N, RTTY-N (with [CW250Hz] OFF): More than 500 kHz/-6 dB; Less than
1 kHz/-60 dB
- CW-N, RTTY-N (with [CW250Hz] ON): More than 250 kHz/-6 dB; Less than
800 kHz/-60 dB
- AM-W: More than 6.0 kHz/-6 dB ; Less than 15.0 kHz/-60 dB
- FM: More than 15.0 kHz/-6 dB ; Less than 30.0 kHz/-50 dB
- Spurious and image rejection ratio:
- Image: Less than -80 dB
- IF: Less than -70 dB
- Audio output: More than 2.6 W with an 8 ohm load at 10% distortion
- Notch filter attenuation: More than 45 dB
- RIT variable range: ±9.99 kHz
Antenna Tuner
- Output matching range: 16.7 ~150 ohms unbalanced
- Minimum input power: 15 W
- Auto tuning accuracy: VSWR less than 1.2:1
- Insertion loss: Less than 0.5 dB (after tuning)
CRT Display
- Output level:
- Composite video signal: 1 Vp-p
- Video components: 0.7 Vp-p positive
- Synchronous components: 0.3 Vp-p negative
- Output impedance: 75 ohms
- Horizontal frequency: 15.75 kHz
- Vertical fequency: 60 Hz
IC-781 OPTIONS
- IC-4KL 1 kW HF LINEAR AMPLIFIER
- IC-2KL 500 W HF LINEAR AMPLIFIER
- IC-AT500 500 W AUTOMATIC ANTENNA TUNER
- SP-20 EXTERNAL SPEAKER WITH AUDIO FILTERS (8 ohms/5 W)
- SM-6 DESKTOP MICROPHONE
- SM-8 DESKTOP MICROPHONE
- SM-20 DESKTOP MICROPHONE
- HM-12 HAND MICROPHONE (includes UP/DOWN switches)
- UT-36 VOICE SYNTHESIZER UNIT
- CT-16 SATELLITE INTERFACE UNIT
- CT-17 CI-V LEVEL CONVERTER
- EX-627 HF AUTOMATIC ANTENNA SELECTOR
- FL-103 SSB WIDE FILTER (9.0115 MHz, 2.8 kHz/-6 dB)
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