Test 1: Frequency response (-3 dB)

(Insert -6 dB signal at local site, measure at remote site)

Test 2: Headroom (measured on AAC-LC connection)

(Insert increasing amplitude 1 KHz tone at local site, monitor for overload distortion at remote site Aux output.)

Overload occurs at: +10.5 dBm

Test 3: Audio level

(Insert -6dBm 1KHz tone at local site, monitor received level at remote site auxiliary output)

As the system audio output is adjusted by the on screen volume control an objective level measurement was not possible.

Test 4: Echo Cancellation

Setup The echo canceller is fully automatic in operation. The quality of echo cancellation and doubletalk was Excellent