Personal PA
®
FM Receiver, Model PPA R7
©2005, Williams Sound Corp. MCAT 0
10A
Williams Sound
®
Helping People Hear
1
Description:
The PPA R7 is a single-channel, body-pack style receiver and is compatible with any Williams Sound Personal
PA
®
transmitter operating on 72-76 MHz bandwidth. The PPA R7 features an impact-resistant casing and a belt
clip for hands-free operation. Each receiver is pretuned, and field adjustable by internal tuning coil. A 3.5 mm
mono phone jack accommodates low-impedance mono earphones, headphones and neckloop telecoil cou-
plers. The 3.5 mm phone jack conveniently serves as a charging jack for rechargeable batteries.
Dimensions & Weight: 3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm); 3.2 oz (90 g) with battery
Color: Gray
Battery Type: 9 Volt, Eveready 522 Alkaline or BAT 003 Ni-Cad
Battery Drain: 14 mA, nominal
Battery Life: 32 hours with Eveready 522, 6 hours/charge with BAT 003
FCC ID: CNM R7
Operating Frequency: Pre-tuned, adjustable, 72 MHz-76 MHz *
Intermediate Frequency: 75 KHz
FM Deviation: 75 KHz wideband
De-Emphasis: 75 uS
AFC Range: ± 300 KHz
Sensitivity: 2 µV at 12 dB Sinad with squelch defeated
Squelch: Squelches at 10 µV for minimum 50 dB S/N ratio
Input Overload: 20 mV
Frequency Response: 100 to 10 KHz, ± 3 dB
Signal-to-Noise Ratio: 50 dB at 10 µV
Receive Antenna: Integral with earphone/headphone cord
Audio Output: 250 mW, max. at 16 Ohms
Output Connector: 3.5 mm mini phone jack, also serves as a charging jack
for rechargeable battery
Headphone: Lightweight, mono, 3.5 mm plug, 16 Ω
Warranty: 5 years, parts and labor (90 days on accessories)
*Note: FCC rules limit the use of the 72–79 MHz band to hearing assistance for the handicapped only. Other frequencies are avail-
able that do not have this use restriction.
PPA R7 Receiver:
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
R7 Top
EAR
Vo l ume
1
On/Off
Volume
Control
Headphone
Jack
™On∫ Indicator LED
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