Radio Radio 7BQ L.J.Crooks station
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Page 218 “RADIO"” June 10, 1925.
Radio 7BQ
MR. L. J. CROOKS (7BQ), of ““The aerial is a 7/20, twin wire, broadcast receiver with 2 H.F., D. and
. Launceston Tas., writes and tells inverted ‘L.’ 70ft. long by 50ft. high. two audio. This last set is rarely
us something about his station. Immediately under this is a four wire, used. Up to the present, 7BQ has
He says: ‘I have taken an active 3/20 counterpoise, 18ft. high. A new only been an experimental receiving
part in all wireless matters in Laun- pole is being constructed 60ft. high to station but now I have my ‘ticket’ the
ceston for the past three years. I was take a vertical cage for the transmit- ‘shack’ is in course of re-arrangement.
Hon. Radio Inspector up to the time ter. The present earth used is a water ‘“At present I have only two small
transmitters for local work using one
201A valve working on dry cells with
about 200 volts on the plate.
‘It is proposed to use for a start a
coupled Hartley circuit transmitter
with a five ‘‘watter’’; for plate sup-
ply, 350 volts or more, will be used
from the town supply which is at pre-
sent being changed over from 110 volts
to 240 volts. The accumulators are
charged from the A.C. mains by
means of a mechanical rectifier.”’
——
N.Z. AMATEUR REGULATIONS.
BESIDES the regulations governing
broadcasting in N.Z. there have
also been gazetted new regulations
controlling the erection and operation
of amateur transmitting apparatus.
Licenses for this purpose will cost
£2/2/- annually, and this amount can,
if desired, be paid in quarterly in-
stalments. The usual conditions of
efficiency are applied to applicants.
A view of portion of Mr. Crooks’ station, 7BQ. who must be British subjects. The
wave-length band for amateur trans-
those positions were abolished by the pipe. The receiving equipment con- mission is from 120 to 160 metres,
P.M.G.’s Department. sists of the usual three-coil, ‘low-loss’ and the power used shall not exceed
““My ‘shack’ is situated apart from using a UV200 with the base removed 100 watts of radiated energy At
the house and is 10ft. by 6ft. inside, as the detector and a ‘low-loss’ con- the discretion of the Minister, per-
with every convenience in the way of denser across the secondary and one mission may be given for transmission
shelves, bench. ete. Electric light and stage of audio; a Reinartz with one on other wavelengths than the band
power are laid on also. step of amplification and a five-valve - specified.
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