HP RM500SL manual FastFacts 8.9 Ansi telephone simulator Tmfs test

8.9ANSI telephone simulator (TMFS) test

ANSI S3.22 requires that the gain control be set to RTP (1996) or RTS (2003) before running this test. The reference test gain (RTG) is required in order to calculate the STS (1996) or RSETS (2003). The easiest way to meet both requirements is to run a [Linear] or [AGC] test before running this test. See 8.4: ANSI 1996 Linear and AGC tests; 8.5: ANSI 2003 Linear and AGC tests

1)First, complete a [Linear] or [AGC] test, then press <Tests>.

2)Highlight & <PICK> [Telecoil].

3)Set the aid to ‘T’ (telecoil input).

4)Highlight and <PICK> [Start TMFS test]. Test

setup instructions are displayed.

5)Position the aid on the ‘T’ inscribed on the test chamber floor. BTE aids should lie as flat as possible on the test chamber surface, while custom aids should be oriented with their faceplate parallel to the top surface (if possible) and touching it as shown.

6)Press <Continue> to start the test.

7)While maintaining the orientation of step 5, move the hearing instrument around on the test chamber surface to maximize the number shown in the ‘Maximize Average-SPLITS Value’ box.

8)Without moving the hearing instrument, press <Continue> to store the Average (HFA-or SPA) SPLITS value and run the SPLITS curve.

9)If an RTG has been previously obtained, the STS or RSETS will be shown.

FastFacts 8.9: ANSI telephone simulator (TMFS) test

0611 RM500SL User’s Guide Version 2.8 Page 44