Your Authorized Williams Sound Dealer Is:
© 2000, Williams Sound Corp. MAN 103 A
Pro Wide–band System, Model PPA 275 SPECIFICATIONS
PERSONAL PA Transmitter Model T4
Model PPA T4 Auditory Assistance FM Transmitter
Line Out
FM Channel,
Power
Power: 24 VAC,
50-60 Hz, 10VA
Williams Sound Corp., Minneapolis, MN USA
(XLR) Bal. Mic
Bal./Unbal line or 70V
(TRS) Bal./Unbal .
Line or 70V
Audio Input
Antenna
75 Ohms
Plug
Audio Select
See chart on top.
To configure, see chart on top.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Phones
PPA T4 Professional FM Auditory Assistance Transmitter
Williams Sound
Power
-12dB -6dB
0dB
+6dB
Audio Level
Lo
Increase
Decrease
Too Hi
Audio Adjust
RF Carrier
Ok
Ok
Frequency Synthesized, Channel-Selectable
Intermediate Freq.:
75 kHz
FM Deviation:
75 kHz
De-Emphasis:
75 µS
AFC Range:
± 120 kHz
Sensitivity:
4 µV at 12 dB Sinad
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:
35 mW, max. at 16
Ω
Output Connector:
3.5 mm mono phone jack
Earphone:
Earbud-type with foam cushion, 3.5 mm plug, 32
Ω
Warranty:
Five Years, Parts and Labor.
90 days on cords, earphones, headphones,
batteries and other accessories
Notes:
The R30 Receiver can be field tuned to any of 10
wideband channels using the PLT 005 Tuning Tool.
PERSONAL PA Receiver, Model PPA R30
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:
4.6 oz (130 g) with batteries
Color:
Gray
Battery Type:
Two (2) AA 1.5 V non-rechargeable Alkaline
batteries (BAT 001), 14 mA nominal current drain, 80
hours approx. life
(OR)
Two (2) AA 1.5 V Ni-Cad rechargeable batteries
(BAT 026), 14 mA nominal current drain, 50 hours
per charge approx., recharges in 14–16 hours, uses
CHG 1600 Charger or CHG 200 Charger
FCC ID:
CNM R30
Industry Canada Cert.:
13601021234
Operating Freq.:
Pre-Tuned, Adjustable, 72 MHz - 76 MHz *
Dimensions, Weight:
8.45" (21.5 cm) W x 8.18" (20.8 cm) D
x 1.72" (4.4 cm) H, 3lbs. (1.5 kg)
Color:
Black epoxy paint with white legends
Rack Mount:
One EIA rack space high, 1/2 space wide
1–2 units can be mounted in a single rack
space with optional RPK 005 (single) or
RPK 006 (double) Rack Mount Kits
Power:
21 VAC minimum; 26 VAC maximum,
50 or 60 Hz 4.8 VA nominal; 10 VA maximum;
Wall mount transformer for 105 to 130 VAC
included
FCC ID:
CNMT4
Operating Freqs:
72.1–75.9 MHz *
10 wide–band channels, selectable
Frequency Accuracy:
±.005% stability, 0-50˚ C
Deviation:
± 75 kHz maximum
Pre-Emphasis:
75 µsec
RF Field Strength:
Does not exceed 8 mV/m at 3 m
Nominal Range:
300-500 ft. (90-150 m)
Audio Proc. Functions:
Soft Knee Limit or Compress
Compression
10 dB add’l gain when input is –20 dB
20 dB add’l gain when input is –40 dB
Soft Limiting
>
10 dB add’l gain when input is –45 dB
Frequency Response:
30 – 16000 Hz, +1, -3 dB
Signal to Noise Ratio:
More than 70 dB below 75 kHz deviation
in Limit mode
Note:
Maximum transmitter range is achieved
using the ANT 005 coaxial antenna
Power Indicator:
Green LED
Audio Level Control:
Rotary pot, screwdriver adjust,
used with audio level indicator lights
Audio Level Indicators:
4 LED array, reads -12, -6, 0, and +6 dB
RF Carrier On Indicator: Green LED indicates transmitter RF is on
Phones Jack:
1/4" TRS (Stereo) jack
T4 Transmitter Front Panel
T4 Transmitter Rear Panel
Power Connections:
3-pin Molex
®
connector
Input Levels
Minimum
Nominal
Maximum
Microphone
100 µV
1 mV
100 mV
Bal or Unbal Line
10 mV
100 mV
10 V
Bal or Unbal
70 V speaker line 2.3 V
23 V
230 V
IMPORTANT:
If you choose to connect to 70 Volt Speaker line,
be certain to set the Audio Select switch correctly. Severe
damage will occur if you do not.
Audio Select Switch:
Eight–section DIP switch
Audio Input:
Combination 3-pin XLR, 1/4" TRS jack
Line Output:
RCA jack, 0.6 V output, impedance 1000
Ω
FM Channel Switch:
Eight–section DIP switch (Seven used)
Antenna Outputs:
Hard-wired 75
Ω
Coaxial Antenna (ANT 005)
uses RG-59 cable, 400 ft. (122 m) max.
cable length
*Note: FCC Rules limit the use of the 72–79 MHz band to hearing
assistance for the handicapped only.
Содержание PERSONAL PA Pro Wide-band System 275
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