Landlubbers
ahoy! An
input resistance to die for...
Classic
Marconi Oceanspan MF spec:
Measured
into an artificial aerial load with the following constants
:
Capacity
300 uuF
Resistance
3.6 ohms
CW
(A1) 65
Watts
at 4.2 amps approx
MCW(A2) 72
Watts
at 4.5 amps approx
Aerial
Characteristics
The
transmitter is designed to work into an aerial with the following
characteristics :
Medium
Freq
Main
aerial
410 - 512
khz
300 - 750 uuF + 1.9 - 10 ohms
Emergency
aerial
500
khz
200 - 400 uuF + 1.9 - 10 ohms
As
an approximation, the aerial capacitances
given above would be equivalent to the following aerial lengths:
Main
aerial 150
- 330 feet
Emergency
aerial
90 - 170 feet.
end.
Class I ship:
Main
Tx: 102 metre-amps: Range
175 nautical-miles.
Reserve
Tx: 76 metre-amps: Range 150
nautical-miles.
QTO,
Rog.
