Williams Sound Stereo System PPA R7 User Manual

Personal PA® FM Receiver, Model PPA R7  
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.  
PPA R7 Receiver:  
Dimensions & Weight:  
Color:  
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  
Gray  
Battery Type:  
Battery Drain:  
Battery Life:  
9 Volt, Eveready 522 Alkaline or BAT 003 Ni-Cad  
14 mA, nominal  
32 hours with Eveready 522, 6 hours/charge with BAT 003  
CNM R7  
FCC ID:  
Operating Frequency:  
Intermediate Frequency:  
FM Deviation:  
De-Emphasis:  
Pre-tuned, adjustable, 72 MHz-76 MHz *  
75 KHz  
75 KHz wideband  
75 uS  
AFC Range:  
300 KHz  
Sensitivity:  
Squelch:  
2 µV at 12 dB Sinad with squelch defeated  
Squelches at 10 µV for minimum 50 dB S/N ratio  
20 mV  
100 to 10 KHz, 3 dB  
50 dB at 10 µV  
Integral with earphone/headphone cord  
250 mW, max. at 16 Ohms  
3.5 mm mini phone jack, also serves as a charging jack  
for rechargeable battery  
Input Overload:  
Frequency Response:  
Signal-to-Noise Ratio:  
Receive Antenna:  
Audio Output:  
Output Connector:  
Headphone:  
Warranty:  
Lightweight, mono, 3.5 mm plug, 16  
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.  
Headphone  
™ On Indicator LED  
Jack  
Williams Sound  
EAR  
Volume  
1
On/Off  
Volume  
Control  
R7 Top  
R7 Front  
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!  
©2005, Williams Sound Corp. MCAT 010A  
Williams Sound ®  
Helping People Hear  
1
 
Personal PA® FM Receiver, Model PPA R7  
Contact:  
United States and Mexico  
Williams Sound Corp.  
10321 W. 70th Street  
Eden Prairie, MN 55344-3446  
Ph: 800-328-6190 / 952-943-2252 / FAX: 952-943-2174  
Canada  
Thorvin Electronics  
2861 Sherwood Heights Dr. Units 36-37  
Oakville, ON L6J-7K1 Canada  
Ph: 800-323-6634 / 905-829-3040 / FAX: 905-829-4196  
South America  
DPTech  
SIA Trecho 3/4 Lote 335 2°. Andar  
71200-030 Brasília, DF  
BRAZIL  
Ph: (5561) 361-1384  
Fax: (5561) 361-0948  
Europe and Asia  
Williams Sound Sales Office  
Williams Sound ®  
©2005, Williams Sound Corp. MCAT 010A  
 
Helping People Hear  
3

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