M RECEIVER

• Receiver system

: Double-conversion superheterodyne

• Intermediate frequency : 1st

13.350 MHz (FM/AM)

 

 

 

13.350 MHz (WFM)

 

2nd

450 kHz

 

• Sensitivity*1:

 

 

 

 

(except spurious points; typical values)

 

 

 

 

 

 

 

Frequency (MHz)

FM

 

AM

WFM

0.495–1.625

 

1.3 µV

 

1.625–4.995

0.4 µV

 

 

 

5.000–29.995

0.18 µV

 

0.56 µV

 

 

 

 

 

29.995–49.995

 

 

 

 

 

 

 

 

 

 

 

 

50.000–54.000

0.16 µV

 

 

1.0 µV*4

54.005–76.000

 

 

 

 

 

 

 

 

 

 

76.000–108.000

 

 

 

 

108.000–118.000

0.18 µV

 

 

 

118.000–136.000

 

 

0.5 µV

 

 

 

 

 

 

136.000–143.995

 

 

 

 

 

 

 

 

144.000–148.000

0.16 µV

 

 

148.005–175.000

0.4 µV

 

 

 

 

 

 

 

 

 

175.000–221.995

 

 

1.8 µV

 

 

 

 

 

 

 

 

222.000–225.000

0.32 µV

 

0.79 µV*2

 

225.005–246.995

0.4 µV

 

 

 

 

 

247.000–329.995

0.32 µV

 

1.0 µV*3

 

 

 

329.995–429.995

 

 

 

 

 

 

 

 

 

 

 

430.000–450.000

0.16 µV

 

 

 

 

 

 

 

 

450.005–470.000

 

 

 

470.000–770.000

0.32 µV

 

3.2 µV

 

 

770.000–832.995

 

 

 

 

 

 

 

833.000–999.990

1.0 µV

 

 

 

 

 

 

 

 

 

 

*1 FM and WFM are measured at 12 dB SINAD, AM is mea- sured at 10 dB S/N.

*2 The frequency range is between 222.000 MHz and 229.995 MHz.

*3 The frequency range is between 320.000 MHz and 329.995 MHz.

*4 The frequency range is between 40.000 MHz and 108.000 MHz.

• Selectivity

 

 

AM and FM

: Less than 15 kHz/–9 dB

 

More than 30 kHz/–60 dB

WFM

: Less than 350 kHz/–3 dB

 

More than 700 kHz/–20 dB

• Spurious and image rejection ratio

 

 

: • 50 MHz

More than 60 dB

 

IF/2: More than 50 dB

 

IF: More than 40 dB

 

• 145 MHz

More than 60 dB

 

IF/2: More than 50 dB

 

• 440 MHz

More than 50 dB

 

IF: More than 60 dB

• Audio output power

: 200 mW typical at 10 % distor-

 

tion with an 8 Ω load

• AF output impedance : 8 Ω

• Squelch sensitivity*1: (typical; Except sprious points)

Frequency (MHz)

FM

AM

WFM

0.495–1.625

1.3 µV

 

1.625–4.995

0.4 µV

 

5.000–29.995

0.18 µV

0.56 µV

 

 

 

 

29.995–49.995

 

 

 

 

 

 

 

 

 

50.000–54.000

0.16 µV

 

1.0 µV*4

54.005–76.000

 

 

 

76.000–108.000

 

 

 

 

 

 

 

108.000–118.000

0.18 µV

 

 

118.000–136.000

 

0.5 µV

 

 

 

 

 

136.000–143.995

 

 

 

 

 

 

144.000–148.000

0.16 µV

 

148.005–175.000

0.4 µV

 

 

 

 

 

 

175.000–221.995

 

1.8 µV

 

 

 

 

 

 

222.000–225.000

0.32 µV

0.79 µV*2

 

225.005–246.995

0.4 µV

 

 

 

 

 

 

 

247.000–329.995

0.32 µV

1.0 µV*3

329.995–429.995

 

 

 

 

 

 

 

430.000–450.000

0.16 µV

 

 

450.005–470.000

 

 

 

470.000–770.000

0.32 µV

3.2 µV

770.000–832.995

 

 

 

 

 

833.000–1319.995

1.0 µV

 

 

 

 

 

 

 

*1 FM and WFM are measured at 12 dB SINAD, AM is mea- sured at 10 dB S/N.

*2 The frequency range is between 222.000 MHz and 229.995 MHz.

*3 The frequency range is between 320.000 MHz and 330.000 MHz.

*4 The frequency range is between 40.000 MHz and 108.000 MHz.

All stated specifications are subject to change without notice or obligation.

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Icom IC-T90A manual Receiver, Frequency MHz, Wfm