retained. The input to the card is:- 3 television lines
(spaced 63 .84j..LS) , and 8.8MHz complimenting MECCL square
wave (required to operate PAL modifier). The card has two
75Q outputs. IV composite video. Power requirements +12V,
-12V 50mA. 4U unsupported card. Sub-units GE4 /567,
UN14/538, FL5/506, CD3/537 and FL4/584. DD 1978.
FL010531 FL1/531 NTSC Luminance Combining Filter. This card comb filters
the luminance in the chroma frequency band, such that
chroma energy is removed and luminance high band energy
is retained. The input to the card is:- 3 television lines
(spaced 63/84j..L+sec. apart), and 7.15090MHz complimenting
MECCL square wave. The card has two 75Q outputs. IV comp.
video. Power requirements +12V, -12V 50mA. 4U unsupported
card. Parent equipment PA6M/544. DD 1979.
FL010532 FL1/532 Non-linearity Filter. Pulse shaping filter used for the
measurement of step heights of a staircase wave form used
on the AM18/527 AGC amplifier. 60mm x 35mm printed circuit
board. Parent equipment AM18/527 and ME3M /502. DD 1980.
DDMl 9.292(83).
FL010533 FL1S/533A-D Modular Digital Transversal Filter. Used for constructing
symmetrical filters with any number of co-efficients. Four
co-efficients per board are defined by programming prom
lC's; one co-efficient can be wired (with links) to be a
'centre term'. Digital inputs 8, 9 or 10 bits wide.
Output is 12 bits wide. Sampling frequencies up to 17.9MHz
can be accommOdated using different IC' s. Suggested sub-
groups are:
Max Samp. Freq.
Code
9.1MHz
FL1/533 A
13.5MHz
FL1/533 B
15.9MHz
FL1/533 C
16.4/17.9MHz
FL1/553 D
Power requirements +5V, 2A to 5A depending on Max. Samp.
Freq. 4U BMM unsupported card. Parent equipment
Electronic Stills Store, PA1M/580. RD 1981.
FL010534 FLl/53410kHz Junction Filter. This filter module forms part of
the ME3M/502 TV Waveform Analyser. Its func tion is to
provide both 10kHz high-pass and 10kHz low-pass
characteristics
for
noise
measurements.
122mm x
41mm. Parent equipment ME8/501. DD 1981. DDMl 9.317(84).
FL010535 FLl /535
Chrominance Weighting Filter.
This filter module forms
part of the ME3M/502 TV Waveform Analyser. Its function is
to provide the chrominance weighting characteristics for
noise measurements.
83mm x 33mm.
Parent equipment
ME8/s01. DD 1981. DDMl 9.310(83).
FLOlOs36 FL1/s36
Gaussian Filter.
This has been specifically designed to
plug into the RGB DAC C09/s0s. The card will accept 5th
order gaussian filter designs based on standard wound
chokes. Parent equipment C09/s0s. DD 1981.
FL010s37 FL1S/s37 4-Coefficient Transversal Filter. This unit is a four-
coefficient 8-term digital transversal filter. It will
accept an input of 10 bits of data at a maximum clock rate
110

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