Icom IC-705 - Page 84

11-2
BASIC MANUAL
11
SPECIFICATIONS
DReceiver
• Receive system:
0.03 ~ 24.999999 MHz
RF Direct Sampling
25 ~ 199.999999 MHz, 400 ~ 470 MHz
Down Conversion IF Sampling
• Intermediate frequency:
25 ~ 199.999999 MHz, 400 ~ 470 MHz
38.85 MHz ±0.5 MHz
• Sensitivity:
SSB/CW
( SSB: BW=2.4 kHz, Filter: SOFT, 10 dB S/N
CW: BW=500 Hz, Filter: SHARP, 10 dB S/N)
1.8 ~ 29.999999 MHz
Less than –14 dBμV (0.20 μV) *
1
50 MHz band Less than –16 dBμV (0.15 μV) *
2
144/430 MHz band Less than –19 dBμV (0.11 μV) *
3
AM (BW=6 kHz, 10 dB S/N)
0.5 ~ 1.799999 MHz
Less than 22 dBμV (13.0 μV) *
1
1.8 ~ 29.999999 MHz
Less than 6 dBμV (2.0 μV) *
1
50 MHz band Less than 0 dBμV (1.0 μV) *
2
108.0 ~ 137.0 MHz Less than 0 dBμV (1.0 μV) *
3
144/430 MHz band Less than 0 dBμV (1.0 μV) *
3
FM (at 12 dB SINAD)
28.0 ~ 29.7 MHz Less than –6 dBμV (0.5 μV) *
1
50 MHz band Less than –12 dBμV (0.25 μV) *
2
144/430 MHz band Less than –15 dBμV (0.18 μV) *
3
WFM (at 12 dB SINAD)
76.0 ~ 108 MHz Less than –3 dBμV (0.71 μV) *
3
DV (1% BER (PN9))
28.0 ~ 29.7 MHz
Less than 0 dBμV (1.0 μV) *
1
50 MHz band Less than –4 dBμV (0.63 μV) *
2
144/430 MHz band Less than –9 dBμV (0.35 μV) *
3
*
1
Preamp 1 is ON, *
2
Preamp 2 is ON, *
3
Preamp is ON
• Sensitivity for the European version:
SSB/CW (BW=2.4 kHz, 12 dB SINAD)
1.8 ~ 2.999999 MHz Less than 10 dBμV emf *
1
3.0 ~ 29.999999 MHz Less than 0 dBμV emf *
1
50 MHz band Less than –6 dBμV emf *
2
144/430 MHz band Less than –6 dBμV emf *
3
AM (BW=4 kHz, 60% Modulation, 12 dB SINAD)
1.8 ~ 2.999999 MHz Less than 16 dBμV emf *
1
3.0 ~ 29.999999 MHz Less than 6 dBμV emf *
1
50 MHz band Less than 0 dBμV emf *
2
144/430 MHz band Less than 0 dBμV emf *
3
FM (BW=7 kHz, 60% Modulation, 12 dB SINAD)
28.0 ~ 29.7 MHz Less than 0 dBμV emf *
1
50 MHz band Less than –6 dBμV emf *
2
144/430 MHz band Less than –6 dBμV emf *
3
*
1
Preamp 1 is ON, *
2
Preamp 2 is ON, *
3
Preamp is ON
• Selectivity (Filter: SHARP):
SSB (BW=2.4 kHz) More than 2.4 kHz/–6 dB
Less than 3.4 kHz/–40 dB
CW (BW=500 Hz) More than 500 Hz/–6 dB
Less than 700 Hz/–40 dB
RTTY (BW=500 Hz) More than 500 Hz/–6 dB
Less than 800 Hz/–40 dB
AM (BW=6 kHz) More than 6.0 kHz/–6 dB
Less than 10 kHz/–40 dB
FM (BW=15 kHz) More than 12.0 kHz/–6 dB
Less than 22 kHz/–40 dB
DV (Channel spacing=12.5 kHz)
More than –50 dB
• Spurious and image rejection:
SSB/CW/AM/FM
HF band More than 70 dB*
(except for ADC aliasing)
50 MHz band More than 70 dB*
144 MHz band More than 65 dB
430 MHz band More than 54 dB
* At Intermediate frequency in 25 ~ 30 MHz
or 50 ~ 54 MHz: More than 50 dB
• Audio output power:
Internal speaker
More than 0.53 W (12 Ω load,
1 kHz, 10% distortion)
External speaker More than 0.2 W (8 Ω load,
1 kHz, 10% distortion)
• AF output impedance:
8 Ω
• RIT variable range: ±9.999 kHz
• ANF attenuation: More than 30 dB
(with 1 kHz single tone)
• MNF attenuation: More than 70 dB
• NR attenuation: More than 6 dB
(noise rejection in SSB)