Revision 1.03
2-2 ChannelMaster TX7 Transmitter
Table 2-1: ChannelMaster TX7 Technical Features and Benefits
Technical Feature Benefit
HD and SD video microwave link Supports HD cameras and older NTSC and PAL cameras.
User friendly menu driven interface Ease of Use.
Pushbutton controls Main controls conveniently available.
Preset settings buttons Simple re-use of system setup.
Advanced digital transmission options
(COFDM or VSB digital modulation) using
any system video input type.
High integrity digitally modulated signals and microwave
transmission.
ASI input – HD and SD MPEG2 video
transport stream.
Common on professional video equipment.
SDI input - HD and SD video transport
stream.
Common on pro video cameras.
IEEE 1394 Firewire Digital Video Input Common on pro video cameras.
Composite Video Input – SD (NTSC and
PAL) support for composite video.
NTSC and PAL support.
Up to Four Analog Audio Inputs
Balanced audio signals.
High noise immunity over long distances.
CMTX7 with two XLR input option provides phantom
microphone power on right XLR connector.
Up to Two Digital Audio (AES) Inputs
Supports Audio Engineers Society digital audio interface
specifications. High SNR using digital interface.
MPEG2 Video Encoder
Composite and SDI inputs can be digitally encoded before
modulation and transmission. Also, the MPEG2 encoder
can be used to produce an ASI output signal from Com-
ponent or SDI video input.
Three Modulation Modes: COFDM, VSB,
and Analog FM
Flexible options.
Digital Modulation methods offer quality and reliability.
Analog FM modulation is useful for legacy support.
COFDM Modulation
Digital modulation provides high signal path integrity
characteristics and resistance to transient issues such as RF
noise sources.
VSB Modulation
VSB offers greater robustness than COFDM for larger
throughput applications in clear line of sight conditions.
Analog FM Modulation For use with Analog FM video receiving equipment.
SDI input to Composite Video and De-
embedded Audio
For analog FM transmission of digital video.
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