SU36496A1 - Superheterodyne or autodyne method - Google Patents

Superheterodyne or autodyne method

Info

Publication number
SU36496A1
SU36496A1 SU107904A SU107904A SU36496A1 SU 36496 A1 SU36496 A1 SU 36496A1 SU 107904 A SU107904 A SU 107904A SU 107904 A SU107904 A SU 107904A SU 36496 A1 SU36496 A1 SU 36496A1
Authority
SU
USSR - Soviet Union
Prior art keywords
reception
frequency
superheterodyne
autodyne
transmitter
Prior art date
Application number
SU107904A
Other languages
Russian (ru)
Inventor
П.М. Винник
Original Assignee
П.М. Винник
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by П.М. Винник filed Critical П.М. Винник
Priority to SU107904A priority Critical patent/SU36496A1/en
Application granted granted Critical
Publication of SU36496A1 publication Critical patent/SU36496A1/en

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  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Description

Прием на ультра - коротких волнах затрудн етс , главным образом, нестабильностью частоты как нриемника, так и передатчика. Если Даже процент нестабильности волны очень ма.1, изменени  частоты будут все же весьма значительными по абсолютной величине. Последнее вынуждает, во-первых, крайне тщательно стабилизировать волну передатчика , во-вторых, при супергетеродинном приеме, осуществл ть усиление на промежуточной частоте дл  весьма широкой полосы частот. Первое - во много раз повышает цену у. к. в. передатчиков , вес их и габариты, второе - снижает коэфициент усилени  на каскад промежуточной частоты и тем самым снижает качество приемника.Reception at ultra-short waves is hampered mainly by the frequency instability of both the receiver and the transmitter. If Even the percentage of wave instability is very small. 1, the frequency changes will still be very significant in absolute value. The latter forces, firstly, to extremely carefully stabilize the transmitter wave, and secondly, when receiving superheterodyne reception, to amplify at an intermediate frequency for a very wide frequency band. The first - many times increases the price of. to. in. transmitters, their weight and dimensions, the second - reduces the gain factor at the intermediate frequency cascade and thereby reduces the quality of the receiver.

Осуществить устойчивый прием на у. к. в. представл етс  крайне затруднительным . При всей технически мь1слимой тщательности стабилизации частоты, как передат-ика, так и приемника, благодар  целому р ду факторов, устранение которых невозможно, колебан   частоты при приеме на у. к. в. совершенно неизбежны.To carry out steady reception on. to. in. It is extremely difficult. With all the technically perceptible meticulousness of frequency stabilization, both of the transmitter and the receiver, due to a number of factors that cannot be eliminated, the frequencies oscillate when received on the j. to. in. completely inevitable.

Вследствие вышеуказанных причин радиотехника долгое врем , в части приема ультракоротких волн, базкровалась почти исключМельно на суцер357 )Due to the above reasons, radio engineering for a long time, in terms of receiving ultrashort waves, was based almost exclusively on sucer 357)

регенеративном методе, как наиболее легко и просто осуществимом. Но в виду того, что этот метод приема почти неприменим дл  целей художественного приема, в последнее врем  вопрос об осуществлении у. к. в. приема путем супергетеродинного метода стал весьма актуальным. Вместе с осуществлением последнего возникли и все затруднени , о которых употииналось .regenerative method, as the most easily and easily feasible. But in view of the fact that this method of reception is almost inapplicable for the purposes of artistic reception, recently the question of the implementation of y. to. in. reception by the superheterodyne method has become very relevant. Along with the implementation of the latter, all the difficulties that were put to the fore have arisen.

Согласно предлагаемому изобретению, дл  стабилизации суйергетеродинного или автодинного у. к. в. приема частоту местного гетеродина модулируют низкой частотой, наход щейс  в случае телеграфного приема в области звуковых частот, а в случае телефонного приема в области ультразЬуковых частот. Цель такой модул ции -преобразование резонансной кривой контура местного гетеродина, котора  при этом перемещаетс  с частотой модул ции, занима  некоторую область частот, в пределах которой происходит изменение волны передатчика.According to the present invention, in order to stabilize a super-heterodyne or autodyne voltage. to. in. the local LO frequency is modulated by a low frequency, which is in the case of telegraph reception in the audio frequency domain, and in the case of telephone reception in the ultrasonic frequency region. The purpose of such a modulation is the transformation of the resonant curve of the local heterodyne circuit, which then moves with the modulation frequency, occupies a certain range of frequencies within which a change in the transmitter wave occurs.

На чертеже фиг. 1 изображает динамическую резонансную кривую местного гетеродина; фиг. 2 -«резонансную кривую усилител  промежуточной частоты; фиг. 8 - схему приема по предлагаемомуIn FIG. 1 shows the dynamic resonance curve of a local heterodyne; FIG. 2 - “resonant curve of the intermediate frequency amplifier; FIG. 8 - reception scheme according to the proposed

SU107904A 1932-04-22 1932-04-22 Superheterodyne or autodyne method SU36496A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU107904A SU36496A1 (en) 1932-04-22 1932-04-22 Superheterodyne or autodyne method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU107904A SU36496A1 (en) 1932-04-22 1932-04-22 Superheterodyne or autodyne method

Publications (1)

Publication Number Publication Date
SU36496A1 true SU36496A1 (en) 1934-05-31

Family

ID=48352955

Family Applications (1)

Application Number Title Priority Date Filing Date
SU107904A SU36496A1 (en) 1932-04-22 1932-04-22 Superheterodyne or autodyne method

Country Status (1)

Country Link
SU (1) SU36496A1 (en)

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