Technical Specifications

FM TRANSMITTER, MODEL PFM T32

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, 30
	hours approx. life
	(OR) Two (2) AA 1.5 V NiMH rechargeable batteries (BAT 026), 70 mA nominal current drain, 20
	hours per charge approx., recharges in 14–16 hours, uses CHG 200 or CHG 1600 Charger
Operating Freq’s:	Selectable, 16 channels, 72.1 – 75.9 MHz, internal rotary switch
Stability:	± .005%, frequency synthesized, crystal reference, PLL
Modulation:	Wide-band FM, 75 kHz pk, 75 µS pre-emphasis
RF Output:	8000 µV/m at 30 m, max., 40 mW typical
Freq Response:	200 to 10 kHz, + 3 dB at 1% max. THD
Signal-to-Noise Ratio:	55 - 60 dB, with R31 or R32 Receiver
Microphone Gain Control:	45 dB maximum, 18 dB minimum range
Transmit Antenna:	Integral with 39" microphone cord
Microphone:	Electret type, 39" cord, 3.5 mm mono phone plug
Controls:	On/Off switch, slide-type; Microphone Mute Switch, slide-type; Compression Selector 1:1 or 2:1 with
	internal selectable jumper
Mic Connector:	3.5 mm mono phone jack
Compatible Receivers:	PPA R35, PFM R31, PFM R32
Approvals:	FCC, Industry Canada, RoHS, WEEE
Warranty:	5 years, parts and labor (90 days on accessories)
Note:	FCC regulations, section 15.21, requires the user to comply with the rules of transmitter operation. Any changes
	or modifications made by the user not expressly approved for compliance may result in the loss of all privileges
	and authority to operate the equipment.

RECEIVER, MODELS PFM R31 & PFM R32

Dimensions and	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 NiMH rechargeable batteries (BAT 026), 14 mA nominal current drain, 50
	hours per charge approx., recharges in 14–16 hours, uses CHG 200 Charger
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
Approvals:	FCC, WEEE
Warranty:	5 years, parts and labor (90 days on accessories)

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

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.