登陆注册
15316200000007

第7章

THE RADIO AMATEUR MOVEMENT

From the turn of the century enthusiastic young men who built their own items of electrical and wireless apparatus were known as "Wireless Experimenters".Many of them were later granted licences for the use of "Wireless Telegraphy for experimental purposes" (in the United Kingdom) by the Postmaster General under the terms of the 1904 Wireless Telegraphy Act.In his report to Parliament for the years 1905-1906 theP.M.G.stated that it was his wish "to promote experimental investigations in this promising field".

In a book published in 1908 by R.P.Howgrave-Graham entitled "Wireless Telegraphy for Amateurs" the word amateur seems to have been used for the first time.

During the 1914-1918 war all wireless apparatus in the possession of licensed amateurs was closed down under the Defence of the Realm Act of 1914.Experimental transmission licences numbered 1,600.

After the end of the war an Inter-Departmental Committee was set up and in its report to the Postmaster General dated April 1919 it stated: "We are of the opinion that the number of stations existing in July 1914 was excessive from the point of view of government control in case of emergency and the necessity of preventing interference with government and commercial working; further there was no justification for it from the point of view of the encouragement of research or development of industry".

But there was a magnanimous relaxation in the Defence Regulations when the Post Office notified manufacturers of electrical apparatus that restriction on the sale of buzzers had been removed.Buzzers could now be sold without enquiry as to the use to which the purchaser proposed to put them!!!

During 1919 many issues of WIRELESS WORLD considered "the amateur position", and a leading article in the March issue began with a quotation attributed to Marconi:

"I consider that the existence of a body of independent and oftenenthusiastic amateurs constitutes a valuable asset towards the further development of wireless telegraphy."In a subsequent letter to the Editor Marconi wrote:

"In my opinion it would be a mistaken policy to introduce legislation to prevent amateurs experimenting with wireless telegraphy (which the authorities were contemplating).Had it not been for amateurs, wireless telegraphy as a great world-fact might not have existed at all.A great deal of the development and progress of wireless telegraphy is due to the efforts of amateurs."John Ambrose Fleming, the inventor of the diode valve, also wrote to the Editor of W.W.as follows:

"It is a matter of common knowledge that a large part of the important inventions in connection with wireless telegraphy have been the work of amateurs and private research and not the outcome of official brains or the handiwork of military or naval organisations.In fact we may say that wireless telegraphy itself in its inception was an amateur product.Numerous important inventions such as the crystal detector, the oscillating valve, the triode valve -- have been due to private or amateur work.If full opportunities for such non-official research work are not restored, the progress of the art of radio telegraphy and radio telephony will be greatly hindered."Professor W.H.Eccles wrote:

"Improvements and invention must be stimulated to the utmost.It is not impossible to devise laws to impose restrictions upon the emission of wireless waves as will preclude interference with the public radio service of the future (R.F.I.& T.V.I.?!!) and yet allow liberal opportunities for the experimental study of wireless telegraphy."NOTE.The above passages are taken from WORLD AT THEIR FINGERTIPS by John Clarricoats, O.B.E.,G6CL, published by theR.S.G.B.in 1968.

同类推荐
热门推荐
  • 穿越之规则无敌

    穿越之规则无敌

    一个穿越的半宅男,无敌于各种小说世界的故事。
  • 全能仙师

    全能仙师

    一个原本被测试出五行伪灵根的南疆少年,却拥有着来自于未来世界的灵魂。在世人眼中他已经注定了一生的平庸,可是他拥有的一件超级法宝却让这一切都发生了改变。五行平庸变成了五行全能,这样的一个妖孽般的存在,会在这一个神话三国的世界之中,掀起怎样的波澜。
  • 总会有一个人陪你到老

    总会有一个人陪你到老

    或许她是卑微的丑小鸭,但当她对上同样强势的天鹅时,他们的心互相为对方沦陷。可她们的爱情还是敌不过现实.那年,她走了,归期不定。三年后,她是国际当红的设计师Rains,就这样华丽丽的从英国归来.昔日恋人和好友都对她冷漠至极.在无数的兜兜转转中,他们之间还是登对的恋人,她们还是合拍的好友.这时,他们才发现:人生没有永远的孤独,总会有一个人可以陪你到老……
  • 我怀念的过去

    我怀念的过去

    我怀念的是什么样的生活,印象里它已经模糊了许多,如果再不做点什么,我真的害怕我会忘了最初美好的一切,那紫丁香盛开的季节,还有那年匆匆游走的时光。“汝非鱼,不明鱼之所思,汝非吾,不解吾之所想。”没有两个相同的人,更没有两条无差的生活轨迹,你说我们很像,可如今物是人非事事休,何来相似?我们在各自的人生中走了太久,久到忘了曾经彼此相依,所谓不离不弃。船行了太久,艄公也倦了,默默的走回舱内,拿出烟袋,顺手在舱沿的木头上磕了磕,便俯下身去点燃一根火柴,烟锅上很快腾起烟圈,火光忽明忽灭,似近似远,慢慢的模糊了周围的一切,只在这一点火光中,我慢慢的回到了那段我最怀念的时光。
  • 梦里星辰大海有多远

    梦里星辰大海有多远

    梦里北海南风吹,落单的麋鹿找不到可以回家的路,漫漫长夜里森林不可归。你说过你会做她依靠的岛屿,可是等不到台风来袭你就消失不见。你忘了吗?你也曾跨越过陌生的城市和遥远的沧海,只为追回青葱岁月里那个肯陪你淋雨的女孩。如果看过永恒的星星也不能在一起,那为什么还是忘不了相约寒冰梦里冷风吹的星辰大海?或许若干年后,你是否只有在熬夜失眠的时候才想起那杯被你冷落的旧咖啡。你是否只有在萧瑟夜雨里看着灯红酒绿的时候才想起那把被你丢掉的雨伞。你是否只有在南风吹过北海的时候你才追忆梦里亏欠的那个女孩。可是,你真的只有在她失望转身离开后才明白什么是深爱。若干年后,陪在你身边的那位会是谁?是麋鹿默默地付出还是海屿陪哭。
  • 焚尸冥尊

    焚尸冥尊

    多年前,一直在尸山修习法术的杨云跟着师父来到一个叫邪村的地方,看守几百年前祖师爷留下的镇妖鼎。在桥月之夜来临的时候不能让里面的妖灵逃出来,可是尽管他们十分的小心,不幸还是发生了,桥月之夜过后,村里竟然有人中了尸毒,而且还有法力高强的妖灵出没,为了降妖他师父战死了,悲痛的他失去了理智,把镇妖鼎打翻了····。等他清醒之后才发现自己犯了大错,覆水难收,自己犯的错再难也的解决,他决心要为师父报仇,因此他踏上了降妖的征途,这时候他才知道道路很艰难,而且他也发现自己正陷入一个陷阱中····。焚化尸魔抉择阴阳···!
  • 终极邪仙

    终极邪仙

    少年吴爽偶然得到神秘功法,从此世界一切都可以为其使用。轻松挪到数吨巨石重物,这都是小意思。我连大山都可以瞬移。水系修真之法在我眼里都是小孩玩意。我连江河都可以掌控。如果说风雨雷电为我所用就算是大神的话,那么未免也太没调性。无知的人类只是御灵的初级阶段,就连仙魔鬼怪,都要听我吩咐,为我所用。天上地下,为我邪尊。
  • 孤女闲妻

    孤女闲妻

    夜凉如水,秦淮河边灯火辉煌,人来人往,河中央花船亦是同样热闹
  • 脉诀乳海

    脉诀乳海

    本书为公版书,为不受著作权法限制的作家、艺术家及其它人士发布的作品,供广大读者阅读交流。
  • 魔世天下

    魔世天下

    人族不是自诩为正道吗,人族不是说邪不能胜正吗,我要证明给你们看,什么叫邪能胜正:我要证明给你们看,什么是天下归魔!我若为人,人间魔土;我若为魔,魔世天下!