Arcam Delta 150 NICAM User Manual

Page 15

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Delta 150 NICAM stereo TV tuner handbook

However, the NICAM signal is susceptible to adjacent

channel interference. This is a particular problem when trying to pick up
a distant NICAM TV transmission in the presence of a strong local

transmitter which uses similar channel numbers. The problem manifests
itself as a severe crackling on the NICAM sound channels. FM sound is
unaffected, and in severe cases the Delta 150 will switch back
automatically from NICAM to FM sound as the NICAM signal degrades.

There is no cure for this except to null out the interfering

signals. Careful re-orientation of your aerial may help as may a more
directional aerial array. If in doubt consult your local aerial contractor.

Further information on the availability of NICAM broadcasts

may be obtained from;

Independent Broadcasting Authority
Engineering Information
Crawley Court
Winchester
Hants
S021 2QA

Telephone 0962 822444

(see also ORACLE, p 697)

and

British Broadcasting Corporation
Engineering information Department
Broadcasting House
London
WlA lAA

Telephone 071 580 4468 Extension 5040