Williams Sound CFM 400 Soundfocus FM System Specifications, FM TRANSMITTER, Model PFM T31

SOUNDFOCUS FM™ SYSTEM SPECIFICATIONS

FM TRANSMITTER, MODEL PFM T31

Dimensions:	3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm)
Weight:	4.4 oz (125 g) with battery
Color:	Royal blue, shatter-resistant polypropylene
Battery Type:	Two (2) AA 1.5 V Non-rechargeable Alkaline batteries (BAT 001), 70 mA nominal current drain, 12 hours approx. life
	(OR)
	Two (2) AA 1.5 V Ni-Cad Rechargeable batteries (BAT 026), 70 mA nominal current drain, 10 hours per charge
	approx., recharges in 14–16 hours, uses CHG 200 Charger
Operating Freq’s:	Selectable, 10 channels, 72.1 – 75.9 MHz, internal DIP switch
Stability:	+ .005%, frequency synthesized, crystal reference, PLL
Modulation:	Wide-band FM, 75 kHz, 75 µS pre-emphasis
RF Output:	8000 µV/m at 30 m, max., 40 mW typical
FCC ID:	CNM T31
Freq Response:	100 to 10 kHz, + 3 dB at 1% max. THD
Signal–Noise Ratio:	55 - 60 dB, with R31 or R32 Receiver
Auto Gain Control:	40 dB range, 30 mV threshold
Transmit Antenna:	Integral with 40" microphone cord
Microphone:	Omnidirectional condenser, Lavalier-type, 40" cord, 3.5 mm mono phone plug (MIC 063)
Controls:	On/Off switch and Mic Mute Switch, slide-type
Mic Connector:	3.5 mm mono phone jack
SOUNDFOCUS FM RECEIVER/AMPLIFIER/SPEAKER, MODEL R800
Dimensions & Weight:	8.375" H x 5.5" W x 5.75" D (21.3 x 14 x 14.6 cm), 4.5 lbs, (2.04 kg)
Power Requirements:	110-125 VAC, 50/60 Hz
FCC ID:	CNM R800
Operating Frequency:	Six-Channel Selectable, 72.1, 72.5, 72.9, 75.7,74.7,75.3 MHz
FM Deviation:	± 75 kHz, 75 µS de-emphasis
AFC Range:	± 300 kHz
Sensitivity:	2 µV at 12 dB Sinad with squelch defeated, squelches at 10 µV for min. 50 dB S/N ratio
Frequency Response:	100 to 10 kHz, ± 3 dB
Signal-to-Noise Ratio:	50 dB at 10 µV
Receive Antenna:	Flexible “rubber duckie”-type
Controls:	Power On/Off, FM On/Off, Volume, Bass, Treble, FM Channel
Rated Power:	12 Watts, continuous, 4Ω w/ (1) SPK 800: 6W per spkr; w/ (2) SPK 800: 4W per spkr; w/ (3) SPK 800: 3W per spkr;
Frequency Response:	65 Hz to 20 kHz ± 3 dB
Distortion:	less than 0.05% at rated power
Tone Controls:	Bass: +8/-12 dB at 100 Hz, Treble: +10/-12 dB at 10 kHz
Line Input:	Unbalanced, RCA, 200 mV min. for 12 Watts output, 2.5 K input impedance
Line Output:	10 dB < Line Input with > 1 K Load
Type:	4" woofer, 1.75" dome tweeter, 4Ω
Maximum SPL:	103 dB at 1 meter
OPTIONAL PERSONAL RECEIVERS, MODELS PFM R31 & PFM R32
Dimensions	3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm)
Weight:	4.6 oz (130 g) with batteries
Color:	Royal blue, shatter-resistant polypropylene
Battery Type:	Two (2) AA 1.5 V non-rechargeable Alkaline batteries (BAT 001), 14 mA nom. current drain, 80 hours approx. life
	(OR)
	Two (2) AA 1.5 V Ni-Cad rechargeable batteries (BAT 026), 14 mA nominal current drain, 50 hours per charge
	approx., recharges in 14–16 hours, uses CHG 200 Charger
FCC ID:	CNM R31
Operating Freq’s:	Pre-Tuned, Field–tuneable, 72 MHz - 76 MHz.
	Pre-set channels are E (72.9 MHz) and G (75.7 MHz)
FM Deviation:	Wide-band, 75 kHz, 75 µS de-emphasis
AFC Range:	± 120 kHz
Sensitivity:	4 µV at 12 dB Sinad with squelch defeated, squelches at 10 µV for min. 50 dB S/N ratio
Freq Response:	100 to 10 kHz, + 3 dB
Signal–Noise Ratio:	50 dB at 10 uV
Receive Antenna:	Integral with earphone cord
Audio Output:	35 mW, max. at 16 Ω
Output Connector:	3.5 mm mono phone jack
Squelch:	Set to turn off audio under weak or no signal condition
Carrier Detect Ind:	Red LED, turns on in the presence of a carrier
Controls:	Volume: rotary/on/off/volume; Tone: 3-way slide switch; Lo = flat response (20 Hz), Mid = –3 dB at 235 Hz, Hi = –3 dB
	at 730 Hz; Channel: 2-way slide switch; Ch 1 = 72.9 MHz, Ch 2 = 75.7 MHz
Indicators:	On/off and FM
Note:	Specifications are electrical performance
PFM R31 Receiver Only
Mic Connector:	3.5 mm mono phone jack, supplies positive DC for Williams Sound electret mics
Microphone:	Plug mount electret, omnidirectional, with windscreen, 3.5mm mono phone plug (MIC 014)
Mic Volume:	Rotary control

Williams Sound Corp.

© 1995, Williams Sound Corp. MAN 045D

10399 West 70th St., Eden Prairie, MN 55344-3459

U.S.A. 800-328-6190 / 612-943-2252 / FAX: 612-943-2174