This week Nucomm announced it will be showing a new version of its Analog Coder at IBC-2008.
“Nucomm is always thinking about ways to enhance capabilities for today’s broadcasters,” said John Payne, Nucomm CEO. “The Analog Coder 2 is an inexpensive solution for transporting digital ENG feeds back from remote receive sites to studio. It is also a great solution for dual stream or other dual carrier STL systems, allowing conversion from the analog portion of a given link to digital.”
The original Analog Coder, introduced in 2001, had a maximum data rate of 19.39 Mbps, the ATSC 8-VSB data rate. The Analog Coder 2 accepts transport streams with data rates ranging from 1 to 25 Mbps, in addition to a T1 side channel.
The Nucomm Analog Coder 2 offers an inexpensive way for broadcasters with large multi-hop microwave systems to convert to digital without modifications by installing an Analog Coder 2 modulator at the first transmitter in the chain and an Analog Coder 2 demodulator at the last receiver.
According to Nucomm, field tests “have shown that transporting HDTV through a 24-hop repeater system results in no degradation in signal or picture quality.”
The company provided a description of the Analog Coder 2 system operation.
“The ATSC stream plus the T1 Data Pack are modulated onto a 1 V p-p baseband signal, which can then be input to any analog microwave link by using a proprietary modulation design that offers excellent link performance and reliability.”
The description added that additional features such as automatic forward error correction and efficient adaptive equalization are incorporated to overcome frequency-selective multipath and other adverse conditions.
