Specifications - Icom IC-R71A Instruction Manual

SECTION 1 SPECIFICATIONS
GENERAL
Number of Semiconductors:
Transistors 90
FET 19
IC (Includes CPU) 47
Diodes 237
Frequency Coverage:
0.1MHz ~ 30MHz
(Australian Version: 2.0MHz ~ 30.0MHz)
(German Version: 0.15MHz ~ 26.1MHz)
Thirty 1MHz Segments
Frequency Control: .
CPU based 10Hz step Digital PLL synthesizer with dual
VFO system
Frequency Readout:
6 digit 100Hz readout.
Frequency Stability: ;
Less than 200Hz after switch on 1 min to 60 mins, and
less than 30Hz after 1 hour. Less than 500Hz in the
range of O°C to +50°C
Power Supply Requirements:
117V or 235V +10% 50 ~ 60Hz 30VA
(100V/200V/220V use requires internal modification)
Antenna Impedance: ,
50 ohms Unbalanced
_ (Single wire can be used on 0.1 ~ 1.6MHz)
Weight:
7.5 kg (16.5 Ibs)
Dimensions:
111mm(H) x 286mm(W) x 276mm(D)
(4-3/8 inch x 11-1/4 inch x 10-7/8 inch)
RECEIVER
Receiving System: A
Quadruple Conversion Superheterodyne with continuous
Bandwidth Control
(F;*: Triple Conversion Superheterodyne)
Receiving Mode:
A,;, A3J (USB, LSB), F,; (Output FSK audio signal), A3,
F;*
IF Frequencies:
Ist 70.4515MHz
2nd 9.0115MHz e
3rd 455KHz
4th 9.0115MHz (except F;*)
with continuous Bandwidth Control (except F3 *)
2nd IF Center Frequency:
SSB (A3J) AM (A3) 9.0115MHz
CW (A,) RTTY (F,) 9.0106MHz
FM* (F3) 9.0100MHz
Sensitivity (when preamplifier is ON):
SSB, CW, RTTY
Less than 0.15 microvolts (0.1 ~ 1.6MHz : 1
microvolt) for 10dB S+N/N
AM Less than 0.5 microvolts (0.1 ~ 1.6MHz : 3
microvolts)
FM* Less than 0.3 microvolts for 12dB SINAD
(1.6 ~ 30MHz)
Selectivity:
SSB, CW, RTTY 2.3KHz at —6dB
(Adjustable to 500Hz min)
4.2KHz at —60dB
500Hz at —6dB
1.5KHz at —60dB
AM 6KHz at —6dB
(Adjustable to 2.7KHz min)
15KHz at —50dB
FM* 15KHz at —6dB
- 25KHz at —60dB
Spurious Response Rejection Ratio:
More than 60dB
Audio Output:
More than 3 Watts
Audio Output Impedance:
8 ohms
*When optional FM unit is installed.
CW-N, RTTY-N
Specifications are approximate and are subject to change without notice or obligation.