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PDA200 & PDA800
Features
•
PDA200 provides up to 120m
coverage
•
PDA800 provides up to 400m
coverage
•
Automatic tracking compressor
•
Two selectable Mic/Line inputs
•
Hidden controls
•
X-talk connector
•
Popular 5pin Din connectors
•
Input peak LED
•
Output current meter
•
Free standing case
Operation Instruction Manual
Audio frequency induction
loop ampilifiers
Technical Description
2
The PDA200 & PDA 800 are con-
stant current induction loop amplifiers.
They use an advanced and unique
2
'floating sense system' to achieve greater
efficiency and to correct the phase prob-
lems created by driving an inductor.
The PDA 200 and 800 have a wide
range companding system to give a con-
stant output level for a varying input
level. This is particularly useful when
dealing with fixed microphones used by
people moving within the space around
it; the compander compensates for these
changes in level.
A Compressor output is available to
connect a tape recorder to the loop am-
plifier so that a recording can be made
using the compander which is of a much
higher quality than the auto gain system
in many tape recorders
Page 1
.
Doc No. DCP0000487 JH 12/7/99 rev3
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Related Manuals for Signet PDA200
Summary of Contents for Signet PDA200
- Page 1 Audio frequency induction PDA200 & PDA800 loop ampilifiers Features Technical Description • The PDA200 & PDA 800 are con- PDA200 provides up to 120m stant current induction loop amplifiers. coverage They use an advanced and unique • PDA800 provides up to 400m ‘floating sense system’...
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Page 2: Ac Power Operation
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: Installation
1 & 2 generates a 2KHz tone at 2Hz 7. Using an induction loop receiver (eg SigNET on/off rate. The alert input can also be connected Rxti2), listen to the signal inside the loop. It is to fire alarms/doorbells etc., however when con-... -
Page 4: Output Connections
Output connections X-talk Loop output The X-talk connections allow a a PDA in- The output is via two 30A 4mm terminal duction loop amplifier to be cross-connected to a posts. Connection can be made by way of tails or MA75 \ MA150 mixer amplifier so that all 8 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 PDA200 0.75 -1.0mm When connecting an amplifier to a loop PDA800 1.5 - 2.5mm 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.
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Page 8: Specification
X-Talk Link to PDA 200/800 or MA75 Compressor 5 Pin DIN 300 mV Mains voltage 230 V AC ± 20% Power PDA200 < 80 VA Consumption PDA800 < 200 VA Dimensions Width 305 mm Height 72 mm Length 200 mm.
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