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RADIO TOPICS
BROADCASTING.
www.gwww
"MILESTONE" FOR FLIERS.
STRAITS TO CALIFORNIA.
I
ONE OF THE VAGARIES OF RADIO WAVES.
WIRELESS MARVEL.
SIGHT AND SOUND SYNCHRONISED.
-
by A Teleradio receiving set, which broadcasting can be heard and seen simultaneously, will cost
£0.
The first public demonstration of this perfectly synchronised set, de- veloped by Mr. Bird, the Scottish inventor, will be given in London shortly
Mr. Fred S. Clark, of New York, founder of the American "Radio World," who is now in Europe mak- ing comprehensive observations of wireless developments, states that this simple act, only three feet by four, and capable of enabling opera and other productions to be heard and seen at a distance of 400 miles, has interested American to such an extent that the American Radio Commission has provided for wave- length reservations for broadcast- ing stations of Teleradio.
WIRELESS IN BULGARIA.
TUESDAY, AUGUST 2, 1927.
DAILY CROSS-WORD PUZZLE.
(This cross-word puzzle has been made by an expert but our readers are warned to look out for occasional phonetic spellingò, such as harbor, plow, and altho.)
12
13
[4
16
$7
19
20
123
24
28
126
29
31 132
35
38
140
(142
143
धम
146
87
48
152.
153
the
HORIZONTAL 1-To frustrate
The following extract from the Long-distance aeroplane flights
the well-known aro much in the public eye at pre- June issue of
wireless periodical, sent, and the part that wireless American plays in them as a safety factor is "Popular Radio," is Interesting. too obvious to need stressing. A It is common complaint of the machine possessing a wireless brondenating listener that he is un- transmitting act can be immediately able to hear a certain station be located by means of direction find- cause it is too far away," the ing apparatus, so that any sort of amateur radio telegrapher, on the message from a machine in distress other hand, often makes the com- would enable a rescue ship to be plaint that he cannot hear another seat to the spot. It is possible amateur station "because it is too that Captain Nungesser's ill-fated near." A striking example of this Atlantic dight on the "White Bird" is furnished by a radio message might have ended differently had that a San Jose (Cailfornia) arna- not a wireless bet been unfortunate-teur wished to send by short waves The dis- ly discarded to lighten the plane. to his friend at Carmel. There is another equally important, tance between the two points is connection slightly more than fifty miles, but aspect of wireless in with big flights. On the regular due to the habit that, short waves air lines the aeroplanes are now have of angling into the upper at guided to their destinations
being reflected by mosphere before wireless, darkness or fog holding back to earth, the two stations few terrors for a machine as far as were unable to hear each other it keeping a straight course is con- all. Finally, the San José station, cerned. Stations in Britain can by GHB, recollected that GHM, at Car ordinary direction-finding methode mel, kept a regular schedule with give a machine in flight its bear an amateur in Singapore, Asia, and
An important contract for as this point was easy for each to from time to time. ings
From America now comes news reach, he sent the message to the supply of wireless telegraph trans mmitting and receiving stations to imme- of Interesting development of this Singapore amateur-who
relayed it to the Carmel the Bulgarian Government, for the filea. It seems quite possible that diately in the air age of the future radio amateur! The answer came back purpose of placing Bulgaria in direct wireless telegraphic com- beacons will act us milestones for over the same route the next night. air air pilots. Experiments are now The message and answer together munication with England, Austria, being made with a system of radio covered a distance of 32,000 miles and other European countries, has been secured by Marconi's Wireless beacons which will combine three in order to bridge the fifty-mile Telegraph Co., Ltd., in competition aids to aerial navigation, the direc- gap.
with French and German wireless tive beacon, the marker beacbr, and
engineering firma, radio telephony,
The directive beacon sends out a special type of beam by which the pilot is enabled to follow the designated, course. The marker beacons are small transmitting sets placed at intervals of twenty-five miles along the roule, which serve us mile-posts and supplement the directive bea- con. The radio-telephony station is used to inform pilots of weather | conditions, landing places, and Fother facts. Provision is also be
ing made for the control of the whole system by a single operator at the air port, who will also be equipped with receiving apparatus. Six radio beacons have now been
established or are under construc-}
tion. There seems little doubt that air passengers will one day be able to enjoy the regular broadcasting programmee. There is no tech- nical objection to this, but the addi- tional weight of the necessary ap- paratus has hitherto been the draw back
CANTERBURY CATHEDRAL
AMPLIFIERS..
The installation of amplifiers in the nave of Canterbury Cathedral is now complete.
A special type of microphone is fitted to the pulpit, above which are twa loud speakers gilded to har- monise with the general decorative
scheme.
CHEAPER RADIO VALVES.
Lower Price Expected in the
Autumn,
It is believed that the leading British manufacturers will. in the early autumn, make a reduction of from ten to twenty per cent. in the price or valves used for broadcast receivers.
The public has, for months, clamoured for a reduction, because it has been generally realised that the actual cost of the valves is far below the price charged.
An official of the British Valve Manufacturers' Association told a “Daily Express representative that no decision had been arrived at to reduce prices.
A leading wireless expert. how- ever, said that "There can be no doubt that prices will be reduced in September, but the fact will not be admitted yet by the trade, for the reason that if this were done retailers would cease to buy until their stocks were reduced to the lowest possible amount."
· BROADCAST MUSIC..
Among the apparatus to be in- stalled at the stations, which will be at Sofia, is a high-speed transmitter with power to the anodes of 10) kw. and
be a wavelength range tween 36 and 72 metres. This transmitter will be used for com- munication with stations which are operated in England by Marconi's Wireless Telegraph Co. Ltd., and through which Sofia will be in touch the with the principal cities of world. The Sofia stations will also contain a high-speed long-wave combined telegraph and telephone transmitter for communication with Vienna, with a wave rang of from 2,000 to 4,000 metres. The stations will be operated by the Bulgarian Postal and Telegraph Administra- tion.
RADIO VALVE CLAIMS.
1
B-To be tow-spirited 9-A round-up
(Western U. IL) 10-Compound of
охудел
13-Tlo
18-A short-lepged
horne
15-A kind of trimming 17-Deep wagon track: 18-To cawar 20-To bind 21-While
T
22-Moved lively 24-Translation (abbr.) 25-Pravd
27-One who practices
egotiem 29-Vase
30-Beard of whunt 11-A hare
4.Bad odor 37-A shopping tool
"MINE INTERNATIONAL GYNDICATE,
HORIZONTAL (Cont) | VERTICAL (Cont.)
38-A fish
|40-Personal pronun
41-A country of Asia
(abbr.)
| 43–Abominations
|44-Male sheep
48–Mank'o covel
47-Point of compare
(abbr.)
9-To stir up
11-Flows out
12-A-slender flat hall
14-A grain
18-8aucy
18-A kind of medicine 10-Envoye
{22-Succulent plante 123-A marriage portion
120-A country hotel
81-Reckles
149-Btringed Instrument 26-A young bear
49-Municipal officer 51-Choose by ballot 63-6, sen. Stats (abbr.)|93-An inn
64-Not any
VERTICAL
1-A fountain 2-Unusual B-That ja (Latin-
abbr.)
4-A shade tree B.Changeable
B-A domestic animai 7-A gready animal 8-To revisa
|32-A. self-evident truth
34-thumor
26-A map
36-A fibrous plant 30-Common motal
fastener
+
42-A water.craft 44-Content of spoed 146-Ta color 48-A female fowl 50-By reason of 62-Behold
BUGGESTIONS FOR SOLVING CROSS-WORD PUZZLES
Start out by Alling in the words of which you feel reasonably sure. These will give you a clue to other words crossing thers, and they in turn 16 still athers. A letter belongs iri ench white space, words starting at the numbered squares and rhaing either horizontally or vertically or bath.
(The solution of the above cross-word puzzle will appear in to-morrow's issue along with a new cross-word puzzle.)
BROADCASTING TO COLONIES.
Mr. Amery's Reply to
Question.
In February this year a cyclist. was travelling home with a new coat radio valve in his left-hand pocket, when he was run down by a motor car from behind, and
London, July 11. In 'the House of thrown a good distance along the
Commons road, crashing on to his left side. questioned with regard to the estab It was some time before the pain-lishing of a wireless transmitter ed and bewildered rider realised capable of broadcasting to the that his newly-purchased property Colonies. Mr. Amery Raid that it might have met with disaster, but was premature to ask the Colonies his. unpleasant accident was some to undertake to contribute to its what mitigated by the surprise he cost until experimental work had had upon retrieving the radio valve further advanced, but he did not from his pocket.
expect reluctance on their part Although the box was completely when the time came. smashed, the valve it contained was apparently unbroken, and the unfortunate ineldent of the road was completely forgotten when, upon inserting his new Mullard their national life. It would be P.M. Valve into his receiver, he time enough to protest when it had found that it was in perfect con- proved itself a distinct enemy of dition. the art of music.
Sir Hamilton Harty, speaking at the annual meeting of Halle Con certa Society in Manchester said he was glad the society had been able to arrange for a number of con- certs to be broadcast next season. The amplifier is a Marconi G.K.2, It was foolish to underrate the im- using seven valves, and is placed inportance of broadcasting or to try A tunnel below the transept, One to stand in the way of its progress. of the most interesting features of it was much more sensible to try the installation is that no batteries to make it of service to the cause are used, all the power being drawn of music, for whether they liked from a motor generator through it or not, it had became a part of special smoothing circuits.
The extensive experience of the Marconiphone Public Address en- gineers has enabled them to post- tion the loud speakers so as to blend They had been informed lately, thelf sound with the preacher's said Sir Hamilton, that they were voice with almost uncanny ac-musically a C3 nation. No one ap- curacy. In fact, were they not peared to be much excited at this visible their presence would not be news, perhaps because it was some
thing to be even C3 in these un. Buspected.
Similar apparatus will shortly be heroic times. But if they ever did installed in the choir.
·
BIG BEN MICROPHONE.
Birds responsible for a recent uneven broadcast of Big Ben's chimes have now caused a B.B.C. engineer to make a weekly inspec tion of the microphone in the tower of the famous clock,
The microphone is suspended in
a football bladder packed, with
Once more the merit of a British- made article has been brought home by an experience for which the manufacturer merely states in his literature "will withstand the rougheat handling."
of
appear to be sinking in the scale, it would probably be the result of
2,370 NOT OUTI subsisting too largely on synthetic products. That was the only! The advance in the design danger of wireless-that people Modern Radio Valves has been most! might come to forget that after all marked, particularly in the length it was only a substitute.
of life they give in a broadcasting receiver.
EMPIRE RADIO SERVICE.
An Amateur's Effort.
A London correspondent writes that the radio valves he purchased in September, 1925, are still giving excellent results after 2,870 houra cotton wool. It rested for months
London, July 0.
use. This is about 4 of a farthing without inspection untii one night |
for each valve, with The "Evening News" states that per hour tones to Hateners and made the Marcuse, la making a practical value for money is undoubtedly due Big Ben boomed its thunderous the amateur wireless enthusiast, promise of still further reduction.
He claims that this wonderful miscrophone shiver. It was then move towards Empire broad-asting, discovered that birds had pecked in August by transmitting every to the unique Mullard P.M. through the bladder and abstracted night a musical programme or a Filament that was introduced the cototn wool, probably for their wave-length of 23.88 metres. nests.
"When we first installed a micro- phone in the tower it was pinced in A sealed biscuit tin packed with cotton wool," an official of the B.B.C. told a reporter. "Subae-
FRIGHTENING IN THE NIGHT.
A cry in the night, griping pains in
1
at
that time. To-day, many, of our readers will have proved for them- aelves, we feel surs, that the boon
more
of this revolutionary valve filament gives
than long service. Better reception, greater volume, with
ith greatly reduced running costs
a football bladder better results
universal popularity all over the were obtained, and since the en- is immediate comfort and ease from world, and still further proof of Ita gineer began his weekly Inspection pain in Chamberlain' Golic and Diar- undoubted ability has been given the microphone and bladder have hoca Remedy. It pays to keep it by the teat report of the National been left severely alone."
always on hand. For sale everywhere. Physical Laboratory, London.
quently it was discovered that with the vitals, cramps, weakening diar have brought this P.M. flament af
heen; whether child or adult, there
BRINGING UP FATHER.
WELL-IT'S ABOUT TIME
YOU GOT HOME- BUTE
WHERE IS MY HUSBAND AND HIS SECRETARY?
LISTEN WE ARE SAVED-1 KIN SEE THE HOTEL RIGHT THROUGH THE? TREES!
YESTERDAY'S SOLUTION.
GU
MATE TRAW
FAR HABANA
RIED WALES. SUN HOT PNN TIH: TCD OYS BEAT THE
ROSIN PAT:
HELLO E ALE PASTI JOG STING OBESE O E
TRO
DCA
ODE LODIN NATHON TËTUA
CANE SKMEI
"SIDENTERNATIONAL STRONATG-
"CARNATION" MILK
Now With That Fiser-Than-Ever Taste.
"From Contented Cows"
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:.
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J'CCS I'M AFRAID WERE LOST FER. GOOD- EVEN THE ELEPHANTIS
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1927 by Im's Future Service, „Sie
Loreal Bellam sichte rescued
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