A short history of radio communication receivers in functional diagrams: GFGF series on Radio History
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About this ebook
The authors have conducted worldwide radio communications within the framework of amateur radio over three decades, thereby becoming acquainted with the often extreme demands that message receivers should be able to cope with, and analysing over 70 radio message receivers or receiver parts of transceivers in the process.
For anyone who collects such equipment or wants to learn how it works, the functional diagrams compiled here will provide the best possible help. The extensive bibliography and list of sources open up numerous avenues for more in-depth study or the procurement of documents.
Kurt Bergmann
Jahrgang 1934, betreute bereits während des Oberschulbesuches in Weimar/Thüringen eine Arbeitsgemeinschaft für Rundfunktechnik; Abitur 1952. Danach 1953-1956 Ausbildung als Elektromechaniker in Düsseldorf und 1956-1961 Studium der Allgemeinen Elektrotechnik in Aachen. 1961 Aufnahme einer Tätigkeit als Entwicklungsingenieur für Meßelektronik in Düsseldorf. 1962 Erwerb der Amateurfunk-Lizenz DL9WW; von da an in der Freizeit über mehr als drei Jahrzehnte hinweg weltweite Funkverbindungstätigkeit. 1963-1972 Wissenschaftlicher Assistent, zuletzt Oberingenieur, am Institut für Technische Elektronik der RWTH Aachen. Während dieser Zeit Verfasser mehrerer institutsinterner Lehrbücher. Promotion zum Dr.-lng. 1968. 1973 Professor an der Fachhochschule Aachen. Internes Lehrbuch "Elektronische Schaltungen und Netzwerke". 1981 im Vieweg-Verlag das Lehrbuch "Elektrische Meßtechnik" mit bisher 6 Auflagen. Im Rahmen der begleitenden Amateurfunktätigkeit Erstellung einer kleinen Sammlung typischer Funknachrichtengeräte, kritische Analyse dieser und weiterer Geräte mit dem Ziel der Erstellung übersichtlicher Funktionspläne in Zusammenarbeit mit den beiden weiteren genannten Autoren.
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A short history of radio communication receivers in functional diagrams - Kurt Bergmann
Table of Content
Prologue
1. The primeval - Tuned Radio Frequency Receiver
Knapsack receiver (Tornister-Empfänger
) Torn.E.b. „Berta", 1938
Lorenz Lo6K39, 1939
2. Classical period - superheterodyne receiver with frequency-variable first oscillator
Telefunken Spez. 281 Gr, 1929
Telefunken DF receiver E383N=EP2, 1933
Telefunken Horchempfänger
Fu.H.E. 1, 1933
National HRO „Senior", 1934
Hammarlund „Super Pro" BC794, 1938
Board receiver Lorenz E10aK, 1939
Telefunken Fu.H.E.c, 1939
Medium wave receiver Mw.E.c „Cäsar", 1939
Telefunken Kw.E.a „Anton", 1940
Hallicrafters „Super Skyrider" SX-28, 1941
Lorenz Ln21021 „Schwabenland", 1942
Telefunken E52 „Köln", 1943
Hammarlund „Super Pro" SP600, 1948
National HRO-60, 1952
Lorenz 6P203.A9, 1953
Telefunken E103Aw/4, 1953
Telefunken E127Kw/2, 1953
Siemens E303/305/306, 1953
Telefunken E127Kw/4, 1954
Siemens E309a, 1955
Hallicrafters SX100, 1955
Siemens E566/E310, 1957
Hammarlund HQ170, 1958
Hallicrafters SX122, 1964
Final remarks on Group 2
3. The Collins phenomenon - superheterodyne receiver with crystal-stabilised first oscillator
3.1 Tunable first IF
Collins 75A-1, 1946
Collins 75A-2, 1950
Telefunken E104 Kw/4, 1953
Collins 75A-4, 1955
Collins R390A, 1956
Collins 51J-4, 1957
Collins 51S-1, 1961
Drake 2-B, 1961
Sommerkamp FR100B, 1965
Yaesu FR-101, 1974
3.2 Wide band first IF
Collins 75S-1, 1958
Collins 75S-3B, 1963
Squires-Sanders SS-1R, 1963
Receiving path National NCX-5, 1965
Receiving path Heath SB-101, 1967
Receiving path Sommerkamp FT277, 1971
3.3 Contemporary criticism
4. Two problems are pending - The frequency processing with continuous VFO and the single-range super
Racal RA17, 1957
Siemens E311a, 1959
Rohde & Schwarz EK07, 1960
ITT Mackay Marine 3010-B, 1966
Rohde & Schwarz EK56, 1968
Racal RA-6217, 1968
Racal RA-1217, 1972
Telefunken E 863 KW/2, 1969
Receiving path Yaesu FT-901DM, 1978
Receiving path Yaesu FT-902DM, 1981
Receiving path Kenwood TS-830S, 1981
5. There should be an easier solution - The Premixer concept with a fixed first intermediate frequency
Receiving path Drake TR-3, 1963
Receiving path Drake TR-4, 1965
Receiving path Drake TR-4C, 1972
Drake R-4, 1965
Hallicrafters SX-146, 1966
Receiving path National NCX-500, 1968
Drake R-4C, released 1973, modified 1976
Receiving path Yaesu FT-101ZD, 1979
Receiving path Ten-Tec Omni B, 1979
Receiving path Ten-Tec 560 Corsair, 1982
6. DIGITALANALOG – Single-range super with frequency processing and continuous VFO
Receiving path Drake TR7, 1978
Drake R7, 1979
7. DIGITALDIGITAL – Single-range super with full synthesis for digital or quasi-continuous setting
ITT Mackay Marine 3021A, 1973
RFT EKD 315, 1974
Rohde & Schwarz EK 049, 1975
Receiving path Collins KWM-380, 1979
Measuring receiver Rohde & Schwarz ESH2, 1979
Rohde & Schwarz EK 070, 1980
Cubic HF-1030, 1981
Receiving path Kenwood TS-930S, 1982
Receiving path Icom IC-745, 1983
References and Sources
About the authors
Kurt Bergmann, DL9WW
Joachim Rockschies, DL6CX
Heinrich Spanknebel, DC6IB
About the association
The Gesellschaft der Freunde der Geschichte des Funkwesens (GFGF) e.V.
Historical radio technology has many aspects
GFGF Membership
What GFGF is providing
About the publishing house
Imprint
Bergmann – Rockschies – Spanknebel
A short history of
communication receivers in functional diagrams
1929-1983
GFGF Series on Radio History Volume 10
Prologue
This book gives an insight into the long technical development path of wireless receivers for commercial radio services as well as the amateur radio service over the period from 1929 to 1983, i.e. from the age of electron tube technology to the first assured phase of proof of semiconductor technology, by means of clear, partly simplified circuit and function diagrams.
The authors have handled worldwide radio communications in the amateur radio service over three decades, thereby getting to know the often extreme requirements that those receivers should be able to cope with, and in parallel analysing more than 70 radio message receivers or receiver parts of transceivers.
For those who collect such devices or would like to learn about their functioning, the functional diagrams compiled here provide the best possible assistance. The extensive bibliography and list of sources open numerous avenues for more in-depth study or for obtaining documentation.
The GFGF has already published two editions of this reference book in 2001 and 2002, which have long been completely out of print. I have therefore now reissued it as an e-book in 2022 and translated it to English, so that it is now available indefinitely to both preservationists of old technology and new radio enthusiasts.
Wolf-Dieter Roth, GFGF, DL2MCD, Fall 2022
1. The primeval - Tuned Radio Frequency Receiver
A radio receiver normally has to fulfil the following basic tasks:
1) Selection and amplification