D Receiver; D Antenna Tuner - Icom IC-7800 Instruction Manual

D Receiver

• Receive system
• Intermediate frequencies
• Sensitivity
SSB, CW, RTTY (BW=2.4 kHz, 10 dB S/N)
AM (BW=6 kHz, 10 dB S/N)
FM (BW=15 kHz, 12 dB SINAD)
• Selectivity
SSB, RTTY (BW=2.4 kHz)
CW (BW=500 Hz)
AM (BW=6 kHz)
FM (BW=15 kHz)
• Spurious and image rejection ratio
• Squelch sensitivity
SSB, CW, RTTY, PSK31
FM
• RIT variable range
• Audio output power
• PHONES connector
• EXT-SP connectors

D Antenna tuner

• Matching impedance range
• Minimum operating input
• Tuning accuracy
• Insertion loss (after tuning)
* The LCD display may have cosmetic imperfections that appear as small or dark spots. This is not a malfunction
or defect, but a normal characteristic of LCD displays.
Spurious signals may be received near the following frequencies. These are made in the internal circuit and does
not indicate a transceiver malfunction.
• 0.150 MHz • 10.490 MHz
Spurious waveforms may be displayed on the spectrum scope screen regardless of the transceiver's condition
(Tx or Rx). They are made in the scope circuit. This does not indicate a transceiver malfunction.
All stated specifications are typical and subject to change without notice or obligation.
: Double conversion superheterodyne system
:
1st 64.455 MHz (MAIN band)
64.555 MHz (SUB band)
2nd 36 kHz
:
0.100–1.799 MHz 0.5 µV
1.800–29.990 MHz 0.16 µV
50.000–54.000 MHz 0.13 µV
0.100–1.799 MHz 6.3 µV
1.800–29.990 MHz 2 µV
50.000–54.000 MHz 1 µV
28.000–29.990 MHz 0.5 µV
50.000–54.000 MHz 0.32 µV
:
More than 2.4 kHz/–3 dB
Less than 3.6 kHz/–60 dB
More than 500 Hz/–3 dB
Less than 700 Hz/–60 dB
More than 6.0 kHz/–3 dB
Less than 15.0 kHz/–60 dB
More than 12.0 kHz/–3 dB
Less than 20.0 kHz/–60 dB
: More than 70 dB
:
Less than 5.6 µV
Less than 1 µV
: ±9.999 kHz
: More than 2.6 W
: 3-conductor 6.35 (d) mm (
: 2-conductor 3.5 (d) mm (
sub)
: 16.7 to 150 Ω unbalanced
(HF bands; VSWR better than 3:1)
20 to 125 Ω unbalanced
(50 MHz band; VSWR better than 2.5:1)
: 8 W
15 W
: VSWR 1.5:1 or less
: Less than 1.0 dB
15-3
SPECIFICATIONS AND OPTIONS
(pre-amp 1 ON)
(pre-amp 1 ON)
(pre-amp 2 ON)
(pre-amp 1 ON)
(pre-amp 1 ON)
(pre-amp 2 ON)
(pre-amp 1 ON)
(pre-amp 2 ON)
(except IF through on 50 MHz band)
at 10% distortion with an 8 Ω load
1 ⁄
4
⁄
1
(HF bands)
(50 MHz band)
")
")/8 Ω×2
(for main and
8
15