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Fordray Product Information

Catalog

The Linear Broadcast DSE30 Digital Stereo Encoder is a full broadcast specification unit for FM radio. The DSE30 performs digital encoding of left and right channels to produce an accurate and alignment-free MPX signal. The pilot is crystal locked and digitally divided. A pilot phase control allows fine adjustment of seperation and the MPX level control provides output levels to suit any exciter. The DSE30 is housed in a 1RU rack case with either 600ohm balanced or 47k RCA inputs.

INPUT:

Input Impedance - XLR

600W balanced

Input Impedance - RCA

47kW unbalanced (specify input connector)

Bandwidth

30Hz to 15kHz 2dB±

19kHz Attenuation

>50dB

Input Level - XLR

-4 to +12dB

Input Level - RCA

0.1 to 2.0 Volts

Pre-Emphasis

50mS or OFF

Deviation from Pre-Emphasis Curve

<1dB

OUTPUT:

Output Impedance

10kW

Connector

BNC

MPX Level

0.1 to 4.0 Volts p/p adjustable

Bandwidth

30Hz to 53kHz

Pilot Tone Frequency

19kHz

Subcarrier Level

-10dBc

Harmonic Level

<60dBc

Frequency Response Flatness

30Hz to 15kHz: ±1.5dB

L/R Channel Separation - 40Hz to 10kHz

38dB

L/R Channel Separation - 10kHz to 15kHz

30dB

Signal to Noise

>68dB (weighted, CCIR)

Operating temperature

-20°C to +45°C

Relative Humidity

95%

Power Requirements

240V AC 50Hz 10VA IEC 3 pin socket