Williams Sound Personal PA Wideband Receiver PPA R7-4NA User manual

Specificaitons:
Personal PA™ Wideband Receiver, Model PPA R7-4NA
©2005, Williams Sound Corp. MCAT 0 37A
Williams Sound ®
Helping People Hear
1
Description:
The Personal PA R7-4NA is a four-channel wide-band re-ceiver pre-tuned to frequencies 72.1, 72.5, 72.9, and
75.7 MHz. It features a channel select knob, volume control on/off switch, and an earphone/charging jack. Built
in an impact resistant case, the R7-4NA is field tunable and will operate up to 32 hours with a single 9V non-
rechargeable alkaline battery.
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 216 Carbon,
Eveready 522 Alkaline, or
BAT 003 NiMH Rechargeable
Battery Drain: 14 mA, nominal
Battery Life: 32 hours with Eveready 522,
6 hours/charge with BAT 003
FCC ID: CNM R7, CNM R74Y
Operating Frequency: Pre-tuned, adjustable, 72 MHz-76 MHz *
Intermediate Frequency: 75 KHz
FM Deviation: 75 KHz
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: 100-10 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
Earphone: Earbud-type with foam cushion,
3.5 mm plug, 32 Ω(Other styles available)
R7-4NA Channel Selector 4-position, rotary switch
Warranty: 5 years, parts and labor
90 days on cords, earphones, heaphones, batteries,
and other accessories
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
EAR/CHG Volume
1
On/Off
Volume
Control
Earphone
Jack
™On∫ Indicator LED
Channel
1234
Channel Switch
Williams Sound
R7-4NA Top
R7-4NA Front

Personal PA™ Wideband Receiver, Model PPA R7-4NA
©2005, Williams Sound Corp. MCAT 0 37A
Williams Sound ®
Helping People Hear
2
The receiver shall be housed in an impact resistant poly-propylene case with a hinged battery door that does not
separate from the receiver. The receiver shall be a body-pack style with a wrist lanyard.
The receiver shall have a 3.5 mm mono earphone jack and accommodate low impedance mono earphones, head-
phones and neckloop telecoil couplers. The 3.5 mm jack shall also serve as a charging jack for rechargeable batter-
ies.
The receiver shall operate on one 9 volt battery and shall have a power LED next to the earphone jack. The receiver
shall have a combination on/off rotary volume control and a four position switch to select between frequencies 72.1,
72.5, 72.9, or 75.7 MHz. These frequencies shall be pre-tuned and are adjustable by means of internal tuning coils.
The receiver shall receive FM signals in the 72-76MHz audio assistance band with 75 µs de-emphasis. The receiver
shall provide a maximum output of 250mW at 16 Ohms with an earbud-type earphone. The system electrical fre-
quency response shall be 100Hz to 10kHz,
± 3dB and the signal-to-noise ratio shall be 50dB at 10µV. The receiver
shall accept wideband deviation of 75 kHz p-p.
The receiver shall be covered by a five-year parts and labor warranty, excluding earphones, headphones, bat-
teries and chargers.
The receiver shall be the Williams Sound Corp. model PPA R7-4NA.
Bid Specs:
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

Personal PA™ Wideband Receiver, Model PPA R7-4NA
©2005, Williams Sound Corp. MCAT 0 37A
Williams Sound ®
Helping People Hear
3
United States and Mexico
Williams Sound Corp.
10321 W. 70th Street
Eden Prairie, MN 55344-3446
Ph: 800-328-6190 / 952-943-2252 / FAX: [phone]
Web: www.williamssound.com
Email: [email protected]
Canada
Thorvin Electronics
2861 Sherwood Heights Dr. Units 36-37
Oakville, ON L6J-7K1 Canada
Ph: 800-323-6634 / 905-829-3040 / FAX: [phone]
Web: www.thorvinelectronics.com
South America
DPTech
SIA Trecho 3/4 Lote 335 2°. Andar
71200-030 Brasília, DF
BRAZIL
Ph: (5561) 361-1384
Fax: [phone]
Web: www.dptech.com.br
Email: [email protected]
Europe and Asia
International Sales Department
Williams Sound Corp.
10321 W. 70th Street
Eden Prairie, MN 55344 USA
Phone: [phone] or [phone]
Fax: [phone]
Email: [email protected]
Web: www.williamssound.com
Contact: