Echnical, Pecifications – Williams Sound R31 User Manual

Page 18

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18

T

ECHNICAL

S

PECIFICATIONS

FM T

RANSMITTER

, M

ODEL

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.

R

ECEIVER

, M

ODELS

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

*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO “AUDITORY ASSISTANCE FOR THE HANDICAPPED

.”

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

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