Table of Contents
Advertisement
Quick Links
PDA500 & PDA1000
Features
•
PDA500 provides up to 250m
coverage
•
PDA1000 provides up to 550m
coverage
•
Automatic tracking compressor
•
Line input
•
Mic input
•
Hidden controls
•
Popular 3pin XLR connectors
•
Input peak LED
•
Output current meter
•
19" rack mounting case
Operation Instruction Manual
Audio frequency induction
loop ampilifiers
Technical Description
2
The PDA series are constant current audio
frequency induction loop amplifiers. They use an
advanced and unique floating sense system to
2
achieve greater efficiency and to correct the
phase problems created by driving an inductor,
whilst also providing exceptional sound quality
The pre amplification stage in the PDA
series incorporates an advanced signal process-
ing system which allows tight control to be main-
tained over the signal. This is achieved with only
minimal degradation of the signal and is unno-
ticeable in normal operation. This is far more
advanced and sophisticated system than that
found in many dedicated signal processing units.
The processor can be switched between
compression and compansion (compression and
expansion). Expansion is limited to 28 dB to
prevent background noise and hiss being ampli-
fied. Compression up to 90dB is available. The
compression ratio is dynamically variable. For
most applications the processor should be set
for compression, however compansion should
be used in installations where there are a large
number of microphones and little or no external
signal processing.
Page 1
Doc No. DCP0000518 JH 12/7/99 rev2
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Signet PDA500
Summary of Contents for Signet PDA500
- Page 1 Audio frequency induction PDA500 & PDA1000 loop ampilifiers Features Technical Description • PDA500 provides up to 250m The PDA series are constant current audio frequency induction loop amplifiers. They use an coverage advanced and unique floating sense system to •...
- Page 2 AC power operation Unpacking For normal AC operation, plug the AC power Upon receipt of the amplifier shipment, please supply cord in a wall outlet of 230 V specified inspect for any damage incurred in transit. If voltage. The unit complies with BS415. damage is found, please notify your local repre- sentative and the transport company immedi- AC power cord...
-
Page 3: Input Connections
Phantom is supplied on pins 2 and 3, ter of the maximum peak. 44V, 5mA maximum per pin. 7. Using an induction loop receiver (eg SigNET Rxti2), listen to the signal inside the loop. It is also advisable to check the system with a field strength meter. -
Page 4: Output Connections
Output connections Internal adjustments Loop output These adjustments should only be carried The output is via two 30A 4mm terminal out by qualified personnel. The power lead posts. Connection can be made by way of tails or must be disconnected before the top cover 4mm plugs. - Page 5 Peak current calculation Peak current calculation To calculate the required current it is first Refer to the current width- graph to estab- necessary to calculate the aspect ratio of the lish the required peak current. The width of the loop. This is the width of the loop divided by the loop is shown on the x-axis.
- Page 6 (e.g. stage talk back systems)will this become an issue. Recommended cable gauge Feeder Cables PDA500 1.0 -2.5mm When connecting an amplifier to a loop PDA1000 2.5 - 5mm some distance away use a heavy gauge twisted...
- Page 7 Loop patterns Loop patterns A loop pattern laid on the floor is a low cost Large areas and multiple rooms method to reduce over-spill by providing more Use several loop patterns, each pattern even field strength compared to the usual single must be connected to a separate loop amplifier.
- Page 8 230 V AC ± 20% Power PDA500 < 100 VA Consumption PDA1000 < 225 VA Dimensions Width 482 mm Height 44 mm PDA500 88 mm PDA1000 Length 243 mm. SigNET Amplification & Control Tower Road, Glover Estate, Washington, Tyne & Wear, NE37 2SH...
Need help?
Do you have a question about the PDA500 and is the answer not in the manual?
Questions and answers