Group Delay Equaliser 5624
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The Group Delay-Amplitude Equaliser 5624 provides variable group delay correction and amplitude equalisation over telephone speech band data circuits. Delay and amplitude adjustment is available at 13 frequencies through the band.

  • Continuously adjustable delay up to 1600 microseconds
  • Adjustable amplitude ripple +3dB
  • Separate variable LF and HF amplitude equaliser for loaded and non-loaded cable
  • Amplitude and delay adjustable at every 200Hz from 600 to 3KHz
  • Insertion loss adjustable from -10dB to +20dB
  • Graphic display of amplitude and delay settings
  • Line monitor and bypass facilities
  • Single extended Eurocard 7Hp

Specifications

Input & Output Ports Transformer coupled, 600 ohms balanced, isolated to BS6301
Maximum Signal Level 15dBm
Level Adjustment Flat adjustment to provide -10 to +20dB gain
Delay Equalisation Maximum correction 3000 microseconds from 300 to 3400Hz
Delay Adjustments 13 individual frequencies spaced 200Hz from 600Hz to 3000Hz
Delay Adjustment range 1500 microseconds minimum at each of the 13 frequencies
Delay Section Bypass Switch Selectable
Amplitude ripple Adjustments 13 individual frequencies spaced 200Hz from 600Hz to 3000Hz
Amplitude ripple Adjustment Range 6dB at each of the 13 frequencies
Delay/amplitude Interaction >100 microseconds for a 6dB amplitude adjustment at each centre frequency
Amplitude Equalisation FLT nominal flat response, NL 4dB pet octave slope
LD(ref 1004Hz) HF equalisation @ 3400 +/- 100Hz -1 to +10dB
LF equalisation @ 320 +/- 40Hz -6 to +10dB
Test Access Input and Output via front panel u-links with monitor sockets
Power -22 to -50Vdc @ 80mA maximum
Size 100 x 220 x 35.5mm
Connector DIN41612 male 64-way row fitted
Mounting EA11024B 3U 12-slot shelf or equivalent
Operating Environment 0 to 40 deg C, humidity to 95% (non condensing)
Weight 0.33Kg

KENTON RESEARCH LIMITED
Unit 19, Bourne Industrial Park, Crayford Kent DA1 4BZ
Tel: 01322 552000   Fax: 01322 552020

Group Delay Equaliser 5624
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