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RADIOMETER BKF10 Operating Instructions Manual

RADIOMETER BKF10 Operating Instructions Manual

Automatic distortion analyzer

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BKF10
automatic distortion analyzer
OPERATING
INSTRUCTIONS
INTRODUCTION
The BKF10 Automatic Distortion Analyzer
provides
fully
automatic
total
distortion and amplitude response measure­
ments
with
comprehensive
automatic recording of the measurements,
and external control facilities that enable
it to form a natural part of ·automatic test
systems instrumentation. The BKF10 is in­
tended for measurements on Hi-Fi equip­
ment, broadcast transmissien lines, audio
studio equipment, etc., and provides facili­
ties for measurements in accordance with
the relevant sections of DIN 45,500.
Because of its rather special nature, it is
strongly recommended that these operat­
ing instructions are read completely be­
fore taking the BKF10 in use.
Instructions are given for the basic operat­
ing routine, which is the same whatever
.the application, so that the user will .quick­
Iy become familiar with the BKF10 and its
harmonic
facilities.
A short description of the internal function
facilities
for
of the BKF10 is included to assist in un­
derstanding the principles of its operation.
All measurements made with the BKF10
can be recorded.
While almost any x-y or x-t recorder may
be used with the BKF10, preference should
be given to the Radiometer REC61S2 Ser­
vograph, an x-t recorder fully compatible
with the BKF10,
necessary interface items (interface unit,
interconnecting cable and specially cali­
brated recording charts)
cordings with a high degree of accuracy
and resolution.
It is our intention, from time to time, to
issue Application Notes concerning speci­
fic applications of Radiometer products .
Please call your nearest Radiometer repre­
sentative and have him send you any Ap­
plication Notes available for the BKF10.
which includes all the
for making re­
COPENHAG EN

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Summary of Contents for RADIOMETER BKF10

  • Page 1 A short description of the internal function ments with comprehensive facilities of the BKF10 is included to assist in un­ automatic recording of the measurements, derstanding the principles of its operation. and external control facilities that enable All measurements made with the BKF10 it to form a natural part of ·automatic test...
  • Page 2: Front Panel - Controls And Connectors

    19. Lamp warns when OUTPUT from frequency sweep function. (fully counter-clockwise). BKF10 is too low or too high (1 mV to 1 V). Check settings of MAX. INPUT 8. Oscillator function selector switch. Se­ 15. VERNIER control for level control switch and LEVEL CONTROL switChl lects SINGLE SWEEP function.
  • Page 3 1. To eliminate the effects of hum and 2. Set the controls of the BKF10 as fol­ INPUT/OUTPUT RATIO MEASUREMENTS Input/output ratios are indicated on the n oise below 250 Hz, set the INPUT lows: linear dB scale of the INPUT/OUTPUT INPUT FILTER: FLAT F ILTER (2) switch to HP.
  • Page 4: Rear Panel Connectors

    INPUT FREQUENCY me­ with LEVEL CONTROL switch (16) ter: +3 V at 20 kHz to 0 V at 20 Hz, 29. Cooling fins. The BKF10 should be set to EXT., input resistance> 1 MQ. 1 V/decade. placed so that adequate ventilation is...
  • Page 6 BKF10. The distortion meter section comprises, ment is without a major fault. The built-in AF sweep oscillator has an firstly, a 20 dB switch-selected attenuator extremely low distortion factor «0.Q1%)
  • Page 7: Specifications

    " REFERS TO DEVICE UNDER -� TEST OUT PUT FREOU ENCY EXT ..MP LITUDE CONT Fig. 7. Block diagram of BKF10. SPECIFICATIONS Input frequency meter Measuring range: 20 Hz to 20 kHz Distortion meter Accuracy: ±5% Fundamental frequency: 20 Hz to 20 kHz...