FL040069 FL4/69
FL040070 FL4/70
FL040071 FL4/71
FL040072 FL4/72
FL4/7 2A
FL040073 FL4/73
FL040074 FL4/74
G06
connector.
Supersedes
FL4/59.
Parent
equipment
CD2M/17, CD2M/17A and CD2M/17B. Sub-unit 'A' version
NE4/3. DD 1979. DDMI 6.361(80). Superseded by FL4/75.
OBSOLESCENT.
NICAM 3 Low-pass Filter. Provides low pass fIltering for
NICAM 3 equipment. Power requirements !15V. 4U BMM J card
G06 connector. Supersedes FL4/58. DD 1979.
Low-pass Filter. To provide harmonic filtering on the
output of Band 11 Transmitter Amplifiers of up to 500W C.W.
With 'N' type connectors and an impedance of 50Q. Parent
equipment FL5/8A. DD 1979.
Lowpass Filter. To band limit the bitstream output of the
6336kHz PCM re-assembler. 1.9" x1.2". Parent equipment
CD4/11. DD 1981.
low-pass filter
output of Band 11
Also incorporated
feeding MN1/20 or
DD 1981. . DDMI
Band 11 Harmonic Filter. This
removes residual harmonics from the
transmitters of up to 2kW rating.
is a monitoring output suitable for
MN1/24. Parent equipment AM14/51.
5.413(82).
Band 11 Harmonic Filter. This low-pass filter removes
residual harmonics from the output of Band 11 transmitters
of 2kW rating. Also incorporated is a monitoring output
suitable for feeding MN1/20 or MN1/24. Note FL4/72A will
still be required for outputs of less than 2kW. PB mounted
in casting 61.0D x 145.0W x 174.0H approx. Parent
equipment AM14/51A. DD 1982.
Low Pass Filter. This low-pass filter was designed to
remove a pair of tones used for signalling that are
present 'above' a sound programme. The filter is buffered
by an input and output amplifier. It contains a small card
which is pluggable depending on the fc being chosen to
reject the appropriate pair of tones. These tone pairs
start at 6.5KHz/6.8KHz and progress in 1KHz steps to
16. 6KHz/16. 8KHz. To specify a particular filter to fc
the option range from 1 to 11 should be used as shown
below.
FL4/ OPTION fc(KHz)
FL4/ 1 6.1
FL4/ 2 7.1
FL4/ 3 8.1
FL4/ 4 9.1
FL4/ 5 10.1
FL4/ 6 11.1
Power requirements +12V, -12V. 2U CH1/65A.
FL4/30. DD 1982. DDMI 6.402(83).
FL4/
FL4/
FL4/
FL4/
FL4/
FL4/
OPTION
7
8
9
10
11
fc(KHz)
12.1
13.1
14.1
15.1
16.1
Supersedes
Twin Low Pass Power Filter. Removes switching components
from switch mode power sources for Neve sound desk. First
used for Type 5 Colour Mobile Control Rooms. Power re-
quirements 24v input. Parent equipment PS4/15, PS4M/16.
3U high x 7" deep, connection by UECL 40-40 connector.
SCPD 1982.
117

17