i
1
Simlex
203
working.. A spark low over installation
and 2 medium power c.w.instellation,
together with the nec 18.ry receiving
aparctus are installed in the som; building,
T. affic on one line only can then be
handled at any one time.
This system is ine2/icient unless the total
traflio is of small dimensions.
Dilex-dulex working. The pocossery receiving
sats are installed in a building at sume distance from the transmitting station, and low (and inexpensive) seriels aro
erected.
The two transmitting lents are keyed from
the receiving building.
Cuch & systar presents the following
advantages: --
(i} Simultaneous transmission may be
carried out from each laut,
(iii)
(iv)
**
Roception is unaffected by transmission.
Consequently a greater volume of traflio can be handled then by two independent stations, without mutual interference.
Jeonomy is effected in over conuried, and in perfonnel for supervision of power lants.
This latter system night well be adoptod at the
following stations
Station
Aden
il tara
Beletar
Janics
Bermuda
li pritius
Low power station to be closed.
None. Station now operates simplex. Proposed to operate diplox-duplex,
Colombo Rɛdio
Singapore Radio
Kingston
Bermuda Dockyard
None.