Specifications

5/9/13 888-2857-001 1-15

WARNING: Disconnect primary power prior to servicing.

Section 1 Introduction

Platinum VAX-C Series

1.10.2 COFDM Specifications

Table 1-5 COFDM Transmitter Specifications (DVB-T/T2, ISDB-T, CMMB)

Item Specification

Power Output (before

filter)

50 W, 100 W

Output Power Reduction 0 dB to -10 dB

Power Stability ±0.5 dB

Shoulder Level <-37 dB

MER >34 dB

END ≤0.7dB

Frequency Stability ±150 Hz/month without PFC/GPS

<0.5 Hz per 1% supply variation

<50 Hz over ambient temperature range

<100 Hz at 5 minutes during warm up

Frequency Offsets

Any frequency within band plan, 1Hz increments

Standards DVB-T: ETSI EN 300 744

DVB-T2: ETSI EN 302 755

ISDB-Tb: Brazil ANATEL standard

CTTB:

CMMB:

Response Variation 0.2 dB, typical

Phase Noise 10 Hz <-55 dBc/Hz

100 Hz <-85 dBc/Hz

1 kHz <-90 dBc/Hz

10 kHz <-95 dBc/Hz

100 kHz <-112 dBc/Hz

1 MHz <-130 dBc/Hz

Spurious Output -60dB (after mask filter)

Spectrum Mask Per standard. Filters for critical and non-critical mask available

Central Carrier

Suppression

>75 dB relative to average power

Note 1: High-stability external 10 MHz reference or optional built-in GPS required for SFN