TEF20SHIP Analyzer
After a long and successful run, we reluctantly bring production of the TEF20 analyzer to a close. The new TEF25 provides greater range and bandwidth and allows for faster processing through its' computer interface. The TEF25 utilizes state of the art components with the ability to expand and grow to meet the demands of the future. We will continue to support, repair and calibrate existing TEF20 units, but our efforts are now concentrated on the continuing sales and development of the TEF25 and its' associated software.
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Sound Solutions for acoustical problems

The TEF analyzer and acoustics software make a powerful platform

Processor
Memory RAM 64K x 24 bits
Non-programmable ROM, 32K x 24 bits
Field programmable ROM, 8K x 24 bits
Digital signal processor Motorola DSP56001, running at 27 MHz
Digital-to-analog converter 16 bits, 8 times over-sampled
Analog-to-digital converter 16 bits, 64 times over-sampled (synchronously sampled 2-channel)
Data format IEEE floating point, 24-bit mantissa, 8-bit exponent
Data sample rate 48 kHz, fixed
Dynamic range 96 dB
THD + noise -85 dB at 1 kHz (0.006%)
 
Communication interface
Serial RS-232 (19.2 and 57.6 kilobaud)
Host (HI) Industry standard architecture, requires an HI-PC card installed in an 8-bit expansion slot
Parallel 8-bit standard or bidirectional parallel port (LPT1 or LPT2)
 
Trigger connector
Connector type Four-pin DIN, mates with Switchcraft numbers 09BL4M, 09DL4M, 09GM4M, and 09LK4M
Voltage level TTL compatible, 0 and 5 vdc logic
Maximum current Source and sink current no more than 24 mA

Line input
TEF 20 has two line-level inputs on the front panel. Either input can be selected from software.
Coupling Front panel switch for ac or dc coupling
Connector Front panel BNC
Frequency response 10 Hz to 21 kHz, +0.2 dB, dc coupled
Phase response 10 Hz to 21 kHz, +1.0°, dc coupled
Input impedance 2 M, dc coupled 1 M, ac coupled
Maximum input voltage 1 volt rms
 
Test output
Connector BNC
Level, max 1 volt rms, +5 millivolts, adjustable with front panel control
Source impedance Front panel switch sets source impedance to zero or 50 ohms
 
Microphone input
TEF 20 has two microphone-level inputs on the front panel. Either input can be selected from software.
Coupling ac only
Connector Three-pin XLR, pin 2 "+", pin 3 "-".
Gain 0-60 dB in 4 dB steps, software controlled
Frequency response 10 Hz to 21 kHz, +0.5 dB
Phase response 10 Hz to 21 kHz, +2.0°
Input impedance 6.81 k with phantom power selected 100 k without phantom power
 
Maximum input voltage 1 volt rms
Polarizing voltage Internal jumper selects 0 or +48 volts
 
Indicators and lights
Level Green LED, brightness proportional to input level
Overload Red LED, brightness proportional to overload level
Power Red LED
 Physical
Weight 10 lbs. 7 oz. (4.73 kg)
Dimensions 17" x 12 3/8" x 1 3/4" (43.2 cm x 31.4 cm x 4.4 cm)
Reset switch Momentary-action, recessed push-button on the front panel
Power switch Rocker switch on the back panel
Operating temperature 32o to 130o F (0o to 55o C)
Cooling Ventilation slots on the top and bottom for convection cooling
AC power 100, 120, 220 or 240 volts rms 48 - 440 Hz, 30 watts
DIP switch Baud rate, monitor mode
 
Computer requirements
Applications software will run on any MS-DOS-based system, version 5.0 or higher, with VGA graphics. For a system with acceptable performance levels, we make the following suggestions:
 
Microprocessor 20 MHz 386 with math coprocessor
RAM Eight megabytes recommended, four megabytes minimum
Monitor VGA required, color recommended
Hard disk 80 megabytes recommended, 40 megabytes minimum
Interface, serial One RS-232 serial port, capable of operating at 57.6 kilobaud. Must be assigned as COM1 or COM2.
Interface, host One 8-bit ISA expansion slot for (HI-PC card)
Interface, parallel One bidirectional 8-bit parallel port. Must be assigned as LPT1 or LPT2.
Operating system MS-DOS version 5.0 or newer

Magnitude & Phase

MAGNITUDE AND PHASE DISPLAYS AVAILABLE IN SOUND LAB TDS, MLS OR SLX SOFTWARE

 

Nyquist

THE NYQUIST IS AN ALTERNATIVE VIEW OF MAGNITUDE AND PHASE, AND IS AVAILABLE IN SOUND LAB TDS, MLS AND POLAR SOFTWARE

 

Waterfall Display

SOUND LAB TDS CAN GENERATE 100 CURVE 3D WATERFALL DISPLAYS

 

The trademark SOUND LAB is licensed under United States Trademark Registration No. 1,424,678 and 1,732,027.

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To speak with the TEF Sales Department, call 203-938-2588.