Icom IC-R75 Service Manual

1 - 1
M GENERAL
• Frequency range :
*
1
Specifications guaranteed for 0.1 – 29.99 MHz and 50 – 54 MHz
*
2
Specifications guaranteed for 0.1 – 29.99 MHz
• Mode : SSB (LSB, USB), AM, FM, CW, RTTY, S-AM
• Receive system : Triple-conversion superheterodyne
• Intermediate frequencies :
May differ according to selected IF filter.
• Sensitivity : 0.1 MHz – 1.799 MHz (Preamplifiers are OFF)
SSB, CW, RTTY less than 2.0 µV for 10 dB S/N
AM, S-AM less than 13.0 µV for 10 dB S/N
1.8 MHz – 27.99 MHz (The preamplifier 1 is ON)
SSB, CW, RTTY less than 0.16 µV for 10 dB S/N (typical)
AM, S-AM less than 2.0 µV for 10 dB S/N
28 MHz – 29.99 MHz (The preamplifier 1 is ON)
SSB, CW, RTTY less than 0.16 µV for 10 dB S/N (typical)
AM, S-AM less than 2.0 µV for 10 dB S/N
FM less than 0.5 µV for 12 dB SINAD
50 MHz – 54 MHz (The preamplifier 2 is ON)
SSB, CW, RTTY less than 0.13 µV for 10 dB S/N (typical)
AM, S-AM less than 1.0 µV for 10 dB S/N
FM less than 0.25 µV for 12 dB SINAD
• selectivity : SSB, CW, RTTY More than 2.1 kHz/–6 dB
Less than 4.0 kHz/–60 dB
AM, S-AM More than 6.0 kHz/–6 dB
less than 20.0 kHz/–50 dB
FM More than 12.0 kHz/–6 dB
less than 30.0 kHz/–40 dB
• Audio output power : More than 2.0 W at 10 % distortion with an 8 Ω load
• Antenna impedance : 50 Ω or 450 Ω
• Squelch sensitivity (threshold) :
*Preamplifiers are OFF; *
1
Preamplifier 1 is ON; *
2
Preamplifier 2 is ON
• Current drain (13.8 V DC) : Less than 1.3 A (Standby), Less than 1.5 A (Max. audio out)
• Spurious and image rejection : More than 70 dB (0.1 – 1.799 MHz SSB, AM, S-AM are more than 60 dB)
• Dimensions : 241(W)×94(H)×229(D) mm; 9
1
⁄2(W)×3
11
⁄16(H)×9
1
⁄32(D) inch (projection not included)
• Weight (approximate) : 3.0 kg; 6 lb 10 oz (AC adaptor “AD–55/A/V” is not included)
• Antenna connector : SO-239 (50 Ω), push connection terminal (450 Ω)
• CI-V connector : 2-connector 3.5 (d) mm (
1
⁄8")/8 Ω
• PHONES connector : 3-conductor 6.35 (d) mm (
1
⁄8")
• External speaker connector : 2-conductor 3.5 (d) mm (
1
⁄8")/8 Ω
SECTION 1 SPECIFICATIONS
All stated specifications are subject to change without notice or obligation.
1st (MHz)
2nd (MHz)
3rd (MHz)
SSB
69.0115
9.0115
0.4550
CW
69.0106
9.0106
0.4559
RTTY
69.0105
9.0105
0.4560
AM, S-AM
69.0100
9.0100
0.4500
FM
69.0115
9.0115
0.4500
Frequency (MHz)
0.1 – 1.799
1.8 – 27.99
28 – 29.99
50 – 54
SSB
less than 71 µV*
less than 5.6 µV
*
1
–
less than 5.6 µV
*
2
FM
–
–
less than 0.32 µV
*
1
less than 0.32 µV
*
2
Frequency coverage
30 kHz – 60 MHz*
1
30 kHz – 30 MHz*
2
Version
USA, EUR,
UK, OTH
SEA

Icom IC-R75 Specifications

General

Brand	Icom
Model	IC-R75
Category	Receiver
Language	English