Carrier And Modulation Attack Time; Modulation; Distortion; Residual Modulation And Noise - RF Technology Eclipse Series Operation And Maintenance Manual

7 SPECIFICATIONS

7.4.10 Carrier and Modulation Attack Time

7.4.10 Carrier and Modulation Attack Time
Less than 25ms. Certain models have RF envelope attack and decay times controlled in
the range 200 µ s< t
<2ms according to regulatory requirements.
r/f

7.4.11 Modulation

Type - Two point direct FM with optional pre-emphasis
Frequency Response - ± 1 dB of the selected characteristic from 300-3000Hz
Maximum Deviation - Maximum deviation set on a per channel basis to 1.5, 2.0, 2.5,
3.0, 4,0, or 5.0 kHz. A User Specified Maximum deviation can be preset as well.
(Please request this when ordering the unit).

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 with 5kHz maximum deviation (i.e. a test level of 3kHz).
7.4.14 600 Ω Ω Ω Ω Line Input Sensitivity
Adjustable from -32 to +12 dBm for rated deviation on two symmetric, independent,
transformer coupled Line inputs.

7.4.15 Test Microphone Input

200 Ω dynamic, with PTT

7.4.16 External Tone Input

Compatible with R500 tone output

7.4.17 T/R Relay Driver

An open drain MOSFET output is provided to operate an antenna change over relay or
solid state switch. The transistor can sink up to 250mA. A 1W flywheel diode connects
to the 12V rail to prevent damage to the FET from inductive kick from a relay coil.
Page 40 RF Technology T50