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CO 537/1425
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THE NATIONAL ARCHIVES
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provided there was no limitation of space. So far as Cables &
Wireless woro concornod it would not be possible to roduce the roquiromonts
for chamels, but it might be that the services could accept some
reduction. The Air Ministry had corrected their original requirements
in respect of their Rangoon and Hiroshima circuits by changing from
triple diversity to double diversity reception for both circuits.
Thero might possibly be some other reductions that could be made.
Continuing Mr. Smale said that working on the assumption that
no further reductions could be made and that it would be impossible
to got the necessary amount of land, he had prepared a rough sketch
plan of a possible layout of Rhombic Aorials which would be suitable
for both receiving and transmitting sites. This layout would entail
connection of several receivers on a common serial. This could only
be done by using wide band amplifiers. Ho tabled the sketch layout
for examination and uphasised that the layout would provide the minimum
acceptable officiency and should only be adopted in the event that
nothing better could be obtained. The layout did not include the
Rhombics for the Hiroshima circuit, if a Rhombic was required for this
circuit the sketch would have to be expanded to accommodate it. The
layout provided adequate space for triatics for dipoles.
Group Captain Randle said that if necessary the proposed layout would
It
be acceptable to ir ministry. It catered adequately for the
Singapore circuits which were their most important requirement.
would be preferable to have an equally effective aerial system for
Hiroshima, but Air Ministry would be prepared to accept a less efficient
service to Japan if owing to the limitations of space it was the only
way to ensure first class communication with Singapore.
Lt.Col. Tucker said the proposed layout would be acceptable to
Wer Office.
Mr. Humby asked if ir. Smale had considered the possibility of
utilizing two way reception to get more hours of direct communication
with U.K. Communication on the bearing shown in the sketch plan was
over the smaller portion of the great circle, at certain seasons
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