User manual

45
Personal PA
®
DSP FM Wideband Transmitter
System Specications PPA T45, PPA T45NET Transmitters
Dimensions
8.45” W x 8.25” D x 1.72”H (21.5 cm x 21 cm x 4.4 cm)
Weight
Transmitter: 3.0 lbs (1.36 kg)
Shipping Weight: 4.50 lbs (2.04 kg) (Transmitter, Power Supply, Antenna and packaging)
Color
Black/Silver with black legends on the front, white legends on the back
Rack Mount
Standard 19” Rack, 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 Supply
Desktop Style Transformer (TFP 048)
Input: 100-240 VAC, 50/60 Hz. IEC Line Cord
Output: 24 VDC, 750 mA, 18W. 2.5mm ID center positive barrel connector
Approvals: UL, CUL, Energy Star V, CSA listed
Power ON Indicator
Push On/Push Off latching power button, backlit green indicates power ON, backlight off indicates power OFF,
fading from bright to dark indicates Sleep Mode*
Temperature Range
Operating: +32° F to +104° F (0° C to 40° C)
Storage: -4° F to +158° F (-20° C to 70° C)
Menu Settings
Audio Presets (Music, Voice, Hearing Assist, Custom), Frequency/Channel selection, Frequency/Channel mode,
Audio Input Source (Microphone, Line, Phantom, Digital AES/EB, Digital S/PDIF), High Pass Filter, Low Pass Filter,
Compression, RF Output Power, Screen Saver Delay, Test Tone (400 Hz), Headphone Volume, Headphone Source
RF Section
Operating Frequencies
72.1-75.9 MHz , 17 wideband channels (selectable)
Frequency Accuracy
± 2 ppm stability, 0-50˚ C
Deviation
± 75 kHz maximum
Pre-Emphasis
75 µsec
RF Field Strength
Does not exceed 80 mV/m at 3 m
Compatible Antennas
ANT 005, ANT 021, ANT 024, or ANT 025
Transmission Range
Up to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector
*RF Time-out (Sleep Mode)
Menu selectable - 30 Min, 4 Hours, or Always On; timer starts when audio is below the -21dB VU level and no
buttons are pressed
RF Power
Menu selectable - Full, Medium, Low, Off
RF Outputs
(1x) #10-32 stud connector in center of unit (pcb mounted)
(1x) F-connector on rear chassis
RF Transmit Indicator
1 Green LED, indicates RF “On Air”
Audio Section
Audio Processor Functions
DSP based; Compression: 1:1, 1.5:1 or 2:1; High Pass and Low Pass Filter Frequency control
Frequency Response
31 – 16000 Hz, ±3 dB (“Music” Audio Preset)
Signal-to-Noise Ratio
≥74 dB Transmitted RF
Total Harmonic Distortion
Less than 0.25% @ 1 kHz (RF output)
Common Mode Rejection
>57 dB @ 1 kHz, Mic or Line