Williams Sound PPA R7-4NA - Manual
Williams Sound PPA R7-4NA – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Specificaitons:
Personal PA
™
Wideband Receiver, Model PPA R7-4NA
©2005, Williams Sound Corp. MCAT 037A
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
1
2 3
4
Channel Switch
Williams Sound
R7-4NA Top
R7-4NA Front
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