Operation and Maintenance Manual

Page 20 RF Technology T220
7 SPECIFICATIONS
7.4.8 Transmit Duty Cycle
100% to 40C, derating to zero at 60C.
100% to 5000ft altitude, derating to zero at 15,000ft.
7.4.9 Spurious and Harmonics
Less than 0.25
µ
W
7.4.10 Carrier and Modulation Attack Time
Less than 20ms. Certain models have RF envelope attack and decay times controlled
in the range 200
µ
s<
t
r/f
<2ms according to regulatory requirements.
7.4.11 Modulation
Type - Two point direct FM with optional pre-emphasis
Frequency Response -
±
1 dB of the selected characteristic from 300--3000~Hz
Maximum Deviation - Maximum deviation preset to 2.5 KHz
7.4.12 Distortion
Modulation distortion is less than 3% at 1 KHz and 60% of rated system deviation.
7.4.13 Residual Modulation and Noise
The residual modulation and noise in the range 300 - 3000 Hz is typically less than -
50dB referenced to rated system deviation.
7.4.14 600
Ω
ΩΩ
Ω
Line Input Sensitivity
Adjustable from -30 to +10 dBm for rated deviation
7.4.15HI-Z Input
Impedance - 10K
Ω
Nominal, balanced input
Input Level - 25mV to 1V RMS