Icom IC-R7O Maintenance Manual page 4

RECEIVER
Receiving system
Receiving modes
IF frequencies
2nd IF center frequency
Sensitivity (when preamplifier
is ON):
Selectivity
Spurious response rejection ratio
Audio output
Audio output impedance
* When optional FM unit is insta lled.
Quadruple conversion superheterodyne with continuous band-
width control
(F;*: Triple conversion superheterodyne)
A,, A3J (USB, LSB), F,; (output FSK audio signal), A3, F3
1st 70.4515 MHz
2nd 9.0115 MHz
3rd 455 kHz
4th 9.0115 MHz (except F3*)
with continuous bandwidth control (except F3*)
SSB (A3J) 9.0115 MHz
CW (A,) RTTY (F,) 9.0106 MHz
AM (A;) FM* (F3) 9.0100 MHz
SSB, CW, RTTY
Less than 0.15 microvolts (0.1 ~ 1.6 MHz: 1 microvolt) for 10
dB S+N/N
AM Less than 0.5 microvolts (0.1 ~ 1.6 MHz: 3 microvolts)
FM* Less than 0.3 microvolts for 12 dB SINAD (1.6 ~ 30 MHz)
SSB, CW, RTTY 2.3 kHz at —6 dB
(adjustable to 500 Hz min.)
4.2 kHz at —60 dB
CW-N, RTTY-N 500 Hz at —6 dB
1.5 kHz at —60 dB
AM 6 kHz at —6 dB
(adjustable to 2.7 kHz min.)
18 kHz at —60 dB
FM* 15 kHz at —6 dB
25 kHz at —60 dB
More than 60 dB
More than 2 watts
8 ohms
Specifications are approximate and are subject to change without notice or obligation.