CO129-491 - Public Offices - 1925 — Page 292

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.