Wireless FM Listening System user guide PFM 350, PFM 300, PFM 350E RCH, PFM 300E RCH, PFM T32, PFM R32, R31

19
ACOUSTIC SPECIFICATIONS
Environmental Mic Response (PFM R31
Only)
Input: 80 dB random noise
Device: KEMAR mannequin with BTK 3550 Tester
Y: 80.0 dB 80 db Main Y: 50.2 dB
X: 100 Hz + 8 OCT LOG Main X: 4 kHz
ANSI S3.22–1987 TEST
FM Response (PFM R31, R32)
MINIMUM LOW CUT (TONE SET TO LOW)
Max. SSPL90: 135.8 dB at 500 Hz
HF Avg SSPL90: 127.1 dB
HF Avg Full On Gain: 37.7 dB at 60 dB in
Reference Test Gain: 38.1 dB
Response Limit: 80.1 dB F1=200 Hz, F2=8 kHz
Total Harmonic Dist: 3.6 % at 500 Hz
3.9 % at 800 Hz
2.2 % at 1600 Hz
M
EDIUM LOW CUT (TONE SET TO MID)
Max. SSPL90: 135.5 dB at 600 Hz
HF Avg SSPL90: 127.1 dB
HF Avg Full On Gain: 36.8 dB at 60 dB in
Reference Test Gain: 37.3 dB
Response Limit: 79.4 dB F1=200 Hz, F2=8 kHz
Total Harmonic Dist: 3.4 % at 500 Hz
3.4 % at 800 Hz
2.2 % at 1600 Hz
M
AXIMUM LOW CUT (TONE SET TO HI)
Max. SSPL90: 133.5 dB at 1000 Hz
HF Avg SSPL90: 127.0 dB
HF Avg Full On Gain: 35.4 dB at 60 dB in
Reference Test Gain: 35.8 dB
Response Limit: 78.01 dB F1=200 Hz, F2=8 kHz
Total Harmonic Dist: 1.1 % at 500 Hz
2.7 % at 800 Hz
2.1 % at 1600 Hz
Environmental Mic Response
(PFM R31 Only)
NO TONE MODIFICATION
Max. SSPL90: 134.8 dB at 500 Hz
HF Avg SSPL90: 126.4 dB
HF Avg Full On Gain: 40.9 dB at 60 dB in
Reference Test Gain: 40.8 dB
Response Limit: 81.1 dB F1=200 Hz, F2=8 kHz
Total Harmonic Dist: 1.1 % at 500 Hz
1.1 % at 800 Hz
0.3 % at 1600 Hz
FM Response (PFM R31, R32)
Input: 80 dB random noise
Device: KEMAR mannequin with BTK 3550 Tester
Y: 80.0 dB 80 db Main Y: 34.1 dB
X: 100 Hz + 8 OCT LOG Main X: 4 kHz
ANSI 2.44 TEST