© 2014-2021 Offshore Radio Museum
Top: the main studio on board Oceaan VII
Centre: the News booth/recording studio
Bottom: Studio turntables
Left: the aerial mast on board Oceaan VII
Below: the Radio 270 transmitter
Studio
There were two on-board studios - one for programme presentation and one for news and recording.
The programme presentation studio contained
a control panel
1 x Revox tape deck
1 x EMI studio tape recorder
2 x Garrard turntables
The news booth/recording studio contained a domestic Grundig tape recorder
Transmitter
10Kw RCA BTA 10J1 transmitter
Aerial Height
The original aerial - installed when the ship was fitted out in Guernsey - was 161' (49m) high (from deck level).
The top 100’ (30.5m) was a welded-section alloy Sparlight yachting mast and the bottom 61’ (18.6m) was an alloy test mast from the racing yacht Norsaga. The top 100’ (30.5m) collapsed at sea in April 1966.
The replacement (installed in Grimsby) was 151’ (46m) high (from deck level). The top 90’ (27.4m) was a welded-section alloy Sparlight yachting mast, mounted on the originally installed alloy mast from the racing yacht Norsaga.
The station claimed an aerial height of 154’ (46.9m) - measured from sea level.
The aerial was of the vertical wire cage series feed type
Thanks to Ian Anderson for providing information from his research into offshore radio aerial masts (originally published in Offshore Echos Magazine December 2007 and April 2008)
QSL Card
Radio station engineering departments issue QSL cards to verify reception reports received from listeners
