User's Manual

M7X and M7R Page 2-6 Specification

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Transmit Characteristics

RF power output AM: Adjustable between 1 W and 50 W in 1 W steps

FM, Link 11 and Maritime: Adjustable between 1 W and 100 W in 1 W

steps

Power control < ±1 dB with frequency

< ±1 dB with temperature

< ±1 dB with VSWR up to 2:1

< ±3 dB with VSWR up to 3:1. No damage is caused when operating

into any load.

Duty cycle Continuous.

Offset carrier In AM voice, offset carrier operation with 2, 3, 4 or 5 offsets is available

in accordance with ICAO annex 10

Selectable frequencies are ±2.5 kHz, ±4 kHz, ±5 kHz, ±7.3 kHz,

±7.5 kHz and ±8k Hz.

Spectral mask Adjacent channel power when not modulated:

<-120 dBc/Hz for 25 kHz channels

<-110 dBc/Hz for 8.33 and 12.5 kHz channels

Broadband noise when not modulated:

<-145 dBc/Hz at 300 kHz offset

<-155 dBc/Hz at 1% frequency offset

Harmonic Outputs <-36 dBm for carrier powers up to 50 W

<-80 dBc for carrier powers greater than 50 W.

Spurious Outputs <-46 dBm >500 kHz from carrier.

Modulation setting AM waveforms: 85%

FM voice: ±3.5 kHz

FM wideband: ±6.25 kHz

Link 11: Frequency deviation of ±20 kHz (tolerance ±2 kHz).

Modulation noise AM waveforms: Residual noise -45 dB

FM waveforms: Residual noise -40dB.

Frequency response AM/FM voice, 25 kHz: +0.5 to -3 dB, 300 to 3400 Hz

-20 dB at <100 Hz

-30 dB at >5000 Hz

AM voice, 8.33/12.5 kHz: +0.5 to -3 dB, 350 to 2500Hz

-10 dB at <100 Hz

-25 dB at >3200 Hz

AM/FM wideband (ref 5.5kHz): +0.5 to -3 dB, 20 Hz to 20 kHz

-12 dB at > 25 kHz.

Distortion <5% thd in normal conditions

<10% thd in extreme conditions (VSWR >2:1; temperature below 0

or above 40

C).