Incospec has been performing proof of performance testing in Cable Networks since the beginning of its operations in 1978. Testing to make sure that the Quality of Service is met include: chrominance to luminance delay inequality, differential gain and phase, aural carrier frequency offset, in-channel frequency response, depth of modulation and deviation, video/aural carrier levels, carrier to noise ratio (C/N), intermodulation interferences (CSO & CTB), hum modulation and signal leakage (CLI).

With the exception of CLI testing, similar measurements of these parameters are being applied to MMDS systems in the analog format. Since most of the Cable networks in North America carry both analog and digital signals, performance testing was extended to measure MPEG transport stream performance including latency, jitter, packet loss PCR frequency and the different tables as well as the various modulations (QAM 64/256/A/B) found in the networks.

In addition, since most broadband RF networks use DOCSIS standards for upstream and downstream traffic, performance testing was also extended to include ingress and upstream QPSK/QAM certification.   In 2009, performance testing was expanded to include terrestrial broadcast testing of 8-VSB carriers in the ATSC format. Incospec owns the necessary RF, optical and MPEG analysis instrumentation and employs the engineering & technical staff to conduct performance testing in CATV and Broadband Wireless Access (BWA) MMDS networks.

 The knowledge acquired in performing technical compliance testing has contributed in conducting on-site performance evaluation and field engineering work for troubleshooting anomalies, interferences and impairments normally found in Broadband Telecommunications Networks using hybrid fibre coax (HFC) or microwave distribution medium.