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SubAudible

Tone Decoder

CircuitWerkes

Technical Manual

CircuitWerkes

3716 SW 3rd Place · Gainesville, FL 32607

(352) 335-6555 · Fax (352) 331-6999

http://ww.circuitwerkes.com

No part of this manual may be reproduced or copied without the express written consent of CircuitWerkes.

Preliminary

Содержание Sub-03a

Страница 1: ...nesville FL 32607 352 335 6555 Fax 352 331 6999 http ww circuitwerkes com e mail info circuitwerkes com c 1992 1997 CircuitWerkes AllRightsReserved Allinformationcontainedwithinisproprietary Nopartoft...

Страница 2: ...Notes...

Страница 3: ...oder cam be powered with any supply of 18 24 Volts AC or DC capable of delivering 150mA The relay outputs are dry N O contacts capable of switching loads up to 10 watts We recommend slave relaysifyoui...

Страница 4: ...s 10dBm or less then both jumpers should be off Whichever jumper setting you choose shouldallowthemaximumamountofinputaudioWITHOUTlightingtheinputclippingLED The Sub 03a has a maximum dynamic range of...

Страница 5: ......

Страница 6: ...d Layout Main25Hz Null adjust to detector Secondary 25HzNull adjust to audiooutput 35Hz Null adjust 25 Hz Detect Calibration 35 Hz Detect Claibration Low red High green Tone Detection LED Combo Tone D...

Страница 7: ...Sub 3 Subaudible Tone Decoder Schematic...

Страница 8: ...issetbymultiturn pot R24 Buffer U9b feeds the 25 Hz detector section and a secondary 25Hz notch filter U9c of the same design which in turn feeds the balanced output amps comprised of U5 and its assoc...

Страница 9: ...thefrequencyofthesignalsbeingfedduring the alignment process The audio level of the tone source should be between 10 and 8 dBm depending upon jumper settings If the signal is unbalanced be sure to tie...

Страница 10: ...ir it without charge for parts and labor Proof of purchase date required Warranty does not cover transportation costs or a product subjected to misuse accidental damage alteration except as authorized...