Radyne DM240XR Dokumentacja Pobierz pdf (Strona 85)

MN-DM240XR– Revision 13 7–1

Chapter 7. Technical Specifications

7.1 Introduction

This section defines the technical performance parameters and specifications for the

DM240XR Digital Modulator.

7.2 IF Specification

Tx IF: 50 to 90 MHz, 100 to 180 MHz (70/140 MHz),

950 to 2050 MHz (L-Band)

IF Step Size: 1 Hz

Frequency Stability: 1 ppm

Power Output: 0 to -25 dBm

Power Output Accuracy: ± 1.0 dB

Power Output Stability: ± 0.5 dB

Carrier Mute: -55 dB

Spurious Emissions: -55 dBc, 50 to 90 and 100 to 180 MHz (70/140 MHz),

950 to 2050 MHz (L-Band)-45 dBc, all other

frequencies

Output Impedance: 50 Ohm (L-Band), 75 Ohm (70/140 MHz)

Return Loss: 20 dB (70/140 MHz), 14 dB (L-Band)

Phase Noise: 1 kHz -73 dBc10 kHz -86 dBc100 kHz -100 dBc1 MHz

-120 dBc

Output Connector: BNC Female (70/140 MHz), SMA Female (L-Band)

Monitor Port Output Connector: SMA Female (Based on output frequency)

External Reference: 1 to 10 MHz in 8 kHz steps, better than 10 ppm

1.5 to 5 Vp-p, 50 Ohms

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 195 196

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Radyne DM240XR Dokumentacja Strona 85