MN2/5l0
MN2/511
MN2/5l2
MN2M/5l4
MN2/5l5
MN2/ 5l6A, 5l6B
MN2/5l7A,5l7B
MN2/5l9
MN2M/52l
MN2/522
- 199 -
MN2
which it is proposed
pegs 2, 32. DD 1966.
to insert a test signal. CHl/12A,
DD Spec 9.104. ACO. OBSOLESCENT.
Inter-Carrier Automatic Monitor forming part of PAlM/535
used with EP7/5ll. Accepts a signal from AM2l/50l and,
provided both sound and vision carriers are present at the
correct level, operates a relay to switch on the high
power output amplifier. Similar electrically to MN2/503
which it replaces. CH1/39A. DD 1967. WITHDRAWN.
Synchronisation Automatic Monitor used with UN1/589 to
compare pulse and colour burst outputs with locally
generated reference, CH1/26A. DD 1967. DD Spec 8.293.
ACO. OBSOLESCENT.
DD 1969. CANCELLED.
Line Store Converter Automatic Monitor which operates
changeover contacts to indicate fault condition. PN3/23
with GE2/58IA, GE2/586, PS2/67B, PS2/82A, UN20/524,
UN20/525, UNl/608A, UN16/510, UN16/5l0A. DD 1969.
DD Spec 11.79. DDTM 11.62. ACO. OBSOLESCENT.
ITS Automatic Monitor used in
monitoring facilities to prevent
inserted test signal being added
Similar to MN2/509 but operated on
one. CHl/12A, pegs as MN2/509. DD
OBSOLESCENT.
GE4M/540 to provide
a remote and local
on the same lineR.
two lines instead of
1969. DD Spec 9.123.
Carrier Failure Automatic Monitor used with UN1/564 to
provide alarm if either sound or vision carrier of a UHF
transmitter fails. Version A gives single indication if
both carriers are present. Version B gives locked on
indication if carrier fails. Includes PS2/22B. CH1/12A.
DD 1969. DD Spec 5.166. ACO. OBSOLESCENT.
Carrier Failure Automatic
but less power supply.
WITHDRAWN.
Monitors as MN2/5l6A, MN2/516B
CH1/1ZA, pegs 30, 37. DD 1969.
Automatic Colour Phasing Monitor used to provide "auto"
mode working in studio mixers which have sync monitors of
the MN2/501 type and phase comparators on each channel.
Derives colour non-sync information from the DC correction
signal generated in a Natlock phase comparator. Processed
eight signals independently. CH1/12A. DD 1970.
DD Spec 8.400. EDI 10072(1)NOV70. OBSOLESCENT.
Sync Gauge Automatic Monitor used to indicate when the
sync waveform of a composite video signal is outside
tolerance by comparing it with a standard waveform.
Includes GE6L/507 and other sub-units. DD 1971.
DD Spec 11.145.
DDTM 11.80.
EDI l0134(1)MAY72.
OBSOLESCENT.
Automatic Intercarrier Monitor for use with UHF active
deflectors and UHF translators to detect the presence of

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