HP RM500SL manual FastFacts 15.5 Recd results

15.5 RECD results

The RECD measurement screen shows the response of the RECD transducer in the real ear (pink) and in the 2cc coupler (green). The difference between these curves is the RECD (cyan). An age-appropriate average RECD is shown for reference (dotted). A negative RECD below about 1 kHz may indicate a poor seal between the foam tip and the ear canal. A negative RECD above about 3 kHz may indicate the foam tip is blocking the probe tube. See 15.2: RECD facts, 15.3: RECD coupler response, 15.4: RECD real-ear response.

FastFacts 15.5: RECD results

0611 RM500SL User’s Guide Version 2.8 Page 63