November 1, 2002.

The QAM constellation diagram is now available as an option for the most advanced TV & Satellite Analyser in today’s market, the PROLINK-4 Premium.

OP-004-K: QAM constellation for PROLINK-4

The constellation diagram is the result of combining I and Q signals resulting from the QAM digital demodulation. It is very useful to identify some type of problems present in the digital signal which are otherwise difficult to observe.

OP-004-K: QAM constellation for PROLINK-4OP-004-K: QAM constellation for PROLINK-4OP-004-K: QAM constellation for PROLINK-4

Some of those problems include noise, phase jitter, compression, IQ level unbalance, presence of interfering signals, etc... Various signal impairments can be seen only on a zoomed constellation display. PROLINK-4 Premium offers that function too.

Share :

PROMAX is a leading manufacturer of test and measurement systems, broadcast and TV signal distribution equipment. Our product lines include measuring instruments for cable TV, satellite TV, broadcast, wireless and fibre optics networks, FTTH and GPON analyzers. DVB-T modulators, IP streamers or IP converters (ASI, DVB-T) are among the company’s latest developments.