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This document was generated by me, Colin Hinson, from a Crown copyright document held at R.A.F. Henlow Signals Museum. It is presented here (for free) under the Open Government Licence (O.G.L.) and this version of the document is my copyright (along with the Crown Copyright) in much the same way as a photograph would be. The document should have been downloaded from my website https://blunham.com/Radar, if you downloaded it from elsewhere, please let me know (particularly if you were charged for it). You can contact me via my Genuki email page: https://www.genuki.org.uk/big/eng/YKS/various?recipient=colin You may not copy the file for onward transmission of the data nor attempt to make monetary gain by the use of these files. If you want someone else to have a copy of the file, point them at the website. It should be noted that most of the pages are identifiable as having been processed my me. _______________________________________ I put a lot of time into producing these files which is why you are met with the above when you open the file. In order to generate this file, I need to: 1. Scan the pages (Epson 15000 A3 scanner) 2. Split the photographs out from the text only pages 3. Run my own software to split double pages and remove any edge marks such as punch holes 4. Run my own software to clean up the pages 5. Run my own software to set the pages to a given size and align the text correctly. 6. Run Omnipage (Ulitimate) on all the pages to OCR them. 7. Generate a searchable Acrobat pdf file. Hopefully after all that, I end up with a presentable file, though I can’t guarantee there aren’t errors in the OCR. If you find missing pages, pages in the wrong order, anything else wrong with the file or simply want to make a comment, please drop me a line (see above). It is my hope that you find the file of use to you personally – I know that I would have liked to have found some of these files years ago – they would have saved me a lot of time ! Colin Hinson In the village of Blunham, Bedfordshire. INDEX TO RADIO AND RADAR PUBLICATIONS AP 2463 Volume 1, 1960 MR PUBLICATION 116A-0001-1 INDEX TO RADIO PIJBLICAIIONS BS COMMAND OF THE DEFENCE COUNCIL ?T.'&kANda. (Ministry of Defence) FOR USE IN THE NAVAL SERVICE ROYAL AIR FORCE Prepared by the Ministry of Defence (Aviation Supply)) AP 116A-0001-1 PREFACE (Completely Revised) The reference number of this publication was recoded from AP2463 (2nd Edition) to AP 116A-01 in March 1965 under AL.20, changed to AP 116A-0001 in Jan 1967 under AL.25 and finally amended to AP 116A-0001-1 in June 1971 under AL.29. No general revision of page captions has been undertaken but the code appears in place of the earlier AP reference on new or amended leaves issued subse- quent to that date. Below is given a list of associated indexes etc which may be of use when seeking a publication on a particular equipment, item or system. The "Guide to the allocation of codes" is particularly useful when applying for AP code numbers or tracing the (possible) basic code number of a coded publication (ie Teleprinters = 116M-03**). Regarding the publications listed below, AP113 Book 3 is an index of current four-figure AP numbers and Air Diagrams and AP113 Book 4 is an index of coded publications and Miniature Air Diagrams. List of associated publications AP113, Book 3 Catalogue of technical publications and air diagrams AP113, Book 4 Catalogue of coded technical publications (and Min AD's) AP100Z-0201 RN Catalogue of Air Publications and Air Diagrams (Note 1) AP116A-0101-1 Concise details of ground radio & terminal equipment AP116A-0102-1 Concise details of radio equipment (airborne) AP116A-0103-1 Concise details of radio vehicles AP117A-0102-1 Concise details of radio general purpose test equipment AP117A-0103-1 Concise details of radio special-to-type test equipment IMPORTANT NOTICE In order to keep any index up to date it is most essential that ATP/G Coding be advised on Part 3 of the RD(A) Form 121 immediately the job is sent to print. If the publication number has been amended, say, from topic 1 to topic 13D or the publication title has been changed, this information should be conveyed to ATP/G on an RD(A) form 123. These forms 121 and 123, as well as the "Guide to the allocation of codes" can be obtained, through the usual channels, from: ATP/G (Coding Administration) Procurement Executive, Ministry of Defence Leatherhead Road Chessington Surrey KT9 2LT Note... 1. AP100Z-0201 supersedes AP(N)1 which is obsolete AL 32 Aug 73 Prelim AP 116A-0001-1 LIST OF CONTENTS PRELIMINARIES Amendment record sheet Preface Contents (this list) PART 1. GENERAL INFORMATION Sect. 1. Guide to the allocation of codes (Groups 116 and 117) Sect. 2. Glossary of abbreviations Sect. 3. Notes on American equipment nomenclature Sect. 4. NATO approved letter band designations PART 2. INDEX OF EQUIPMENTS Sect. 1. Alphabetical index Sect. 2. Appendices Al Aerials and aerial systems A2 American (AN/-series) equipment A3 Amplifying units Cl Chassis assemblies C2 Control units C3 CT - test equipment G1 Ground radars Il Indicators and indicating units I2 Instruments J1 Junction boxes M1 Modulator units 01 Oscillator units P1 Panels P2 Power units R1 Rack assemblies R2 Radio installations R3 Radio vehicles R4 Receiving units Tl Test sets T2 not issued T3 not issued T4 Transmitter units PART 3. CROSS REFERENCE OF AP NUMBERS Sect. 1. Original to codified numbers Sect. 2. Codified to original numbers Prelim AL.33,Sept 73 Page 5/6 AP 116A-0001-1, Part 1 Section 1-0 GUIDE TO THE ALLOCATION OF CODES (GROUPS 116 AND 117) The information contained in Sections 1-1 and 1-2 is a guide to the alloca- tion of codes in the 116 and 117 group of publications. Group 116 deals with radio, television, line equipment and also their associated special-to-type test equipments. Group 117 contains information on general purpose test equipment for radio, radar and line equipments. In order to determine the existence of a possible Air Publication, first look up the group and then the sub-group. For example, Siemens Teleprinter Type 100 equates to 116M group, 03 sub-group. By referring to AP 113, Book 4, the actual AP number published is found to be 116M-0328-1. When applying for a new Air Publication code number in order to publish a book under the AP system, the applicant should again use the same process to determine the group and sub-group. The group, sub-group, proposed title of the book etc should be entered on an RDA Form 121 which is sent to MOD(PE), ATP/G Coding, Leatherhead Road, Chessington, Surrey KT9 2LT (Tele 01-397-5266, Extn 1307). One copy only is required. ATP/G Coding will allocate the full code number and it will be returned via ATP/E Clerical at RAE Farnborough. The routing of the form is shown below:- ORIGINATOR ATP/G CODING ATP/E CLERICAL, CHESSINGTON RAE FARNBOROUGH 1 , 1 This applies to applications for codes in the 116 and 117 groups only. Copies of RDA Form 121 can be obtained from the address previously mentioned. AL.33,Sept 73 Page 1/2 AP 116A-0001-1, Part 1 Section 1-1 GROUP 116: RADIO AND LINE EQUIPMENT (AND ASSOCIATED SPECIAL-TO-TYPE TEST EQUIPMENT) Note... Special-to-type test sets and equipment are included in the same Class as the equipment(s) to which they relate. (They are nor- mally either incorporated in the Publication for the equipment(s) or, if issued as a separate Publication, share the same Code 2nd-Element number (with distinguishing 3rd-Element Sub-Topic suffix); in this way, related equipment is linked in the same Publication Code family and so can be easily located and identified.) Note that, for separately-issued Publications on special-to-type test sets, Topic -3C is inapplicable. RADIO - GENERAL INFORMATION 116A-0001 to -00999 Indices and catalogues -0100 to -01999 Concise details of radio and terminal equipment -0200 to -02999 Radio valves RADIO NAVIGATIONAL AND LANDING AIDS (AIRBORNE) 116B-0001 to -00999 General information on airborne radio-navigational and landing aids -0100 to -01999 Radio compasses -0200 to -02999 Radio altimeters -0300 to -03999 Radio homers -0400 to -04999 ILS and VOR -0500 to -05999 Leader cable systems (obsolete) -0600 to -06999 Hyperbolic systems -0700 to -07999 (Unassigned) -0800 to -08999 (Unassigned) -0900 to -09999 Rescue beacons RADIO NAVIGATIONAL AND LANDING AIDS (GROUND AND MARINE) Note... Radar navigational aids (ground) are coded in Sub-group 115F. 116C-0001 to -00999 General information on ground radio-navigational and landing aids (ground) -0100 to -01999 (Unassigned) -0200 to -02999 (Unassigned) -0300 to -03999 (Unassigned) -0400 to -04999 ILS, VOR and Telecroscope Tracking System -0500 to -05999 Leader cable systems (obsolete) -0600 to -06999 Hyperbolic systems (ground and marine) -0700 to -07999 Radio beacons -0800 to -08999 D/F systems -0900 to -09999 (Unassigned) -1000 to -10999 (Unassigned) AL.33,Sept 73 Page 1 RADIO NAVIGATIONAL AND LANDING AIDS (GROUND AND MARINE) (Contd) 116C-1100 to -11999 (Unassigned) -1200 to -12999 (Unassigned) -1300 to -13999 (Unassigned) -1400 to -14999 (Unassigned) -1500 to -15999 (Unassigned) -1600 to -16999 (Unassigned) -1700 to -17999 Aerial equipment RADIO COMMUNICATIONS (AIRBORNE) 116D-0001 to -00499 General information on airborne radio communica- tions -0050 to -00999 Airborne radio communications systems -0100 to -01999 Transmitter-receivers (and transceivers) -0200 to -02999 Transmitters -0300 to -03999 (Unassigned) -0400 to -04999 (Unassigned) -0500 to -05999 (Unassigned) -0600 to -06999 Modulation equipment -0700 to -07999 (Unassigned)
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    v. OPERATING INSTRUCTIONS No. EB 2002 for MF/HF AM Signal Generator TF 2OO2 (£) 1965 MARCONI INSTRUMENTS LIMITED r ST. ALBANS HERTFORDSHIRE ENGLAND C. P. 1.5c EB 2002 [ 5/68/E la - 1/66 CONTENTS Section 1 GENERAL INFORMATION 1.1 Features ... ... ... ... ... 5 1. Z Data summary ... ... ... ... 6 1.3 Accessories ... ... ... ... ... 9 Section 2 OPERATION Z. 1 Preparation for use ... ... ... ... 10 Z. 2 Controls - supply and tuning ... ... ... 10 Z. 3 Controls - modulation and output ... ... ... 12 Z. 4 Setting frequency ... ... ... ... 13 Crystal calibrator ... ... ... ... 13 Incremental tuning ... ... ... ... 14 Logging scale ... ... ... ... 15 External frequency shift ... ... ... 15 Z. 5 Amplitude modulation ... ... ... ... 16 Internal ... ... ... ... ... 16 —. External - capacitor coupled ... ... ... 17 External - direct coupled ... ... ... 17 *- Z. 6 Setting output ... ... ... ... ... 17 2. 7 Mismatched loads ... ... ... ... 18 Matching to high impedance loads ... ... 19 Matching to low impedance loads ... ... ... 19 Matching to balanced loads ... ... ... 19 2. 8 Use of dummy aerial and d. c. isolator ... ... 20 Decibel conversion table ... ... ... ... Zl Section 3 TECHNICAL DESCRIPTION 3. 1 Circuit summary ... ... ... ... 23 3.2 R.F. oscillators ... ... ... ... 24 3. 3 Wide band amplifier ... ... ... ... 25 3.4 Output filters ... ... ... ... ... 26 3. 5 A. L, C. and envelope feedback ... ... ... 26 3. 6 Modulation oscillator and drive circuits ... ... 27 3. 7 Crystal calibrator ... ... ... ... 28 3. 8 Attenuators ... ... ... ... ... 28 3.9 R.F. unit filters ... ... ... ... 29 3.10 Power supplies ... ... ... ... 29 Section 4 MAINTENANCE NOTES 4. 1 Access to components ... ... ... ... 30 R.F. unit ... ... ... ... ... 31 Attenuator unit ... ... ... ... 33 4.2 Fuses ... ... ... ... ... 34 4. 3 Circuit voltages ... ... ... ... 34 4.4 Waveforms ... ... ... ... ... 35 4. 5 Cleaning rotary switches ... ... ... 37 2002 (1) Contents Section 4 MAINTENANCE NOTES (continued) 4.
  • Numerical Notation: a Comparative History

    Numerical Notation: a Comparative History

    This page intentionally left blank Numerical Notation Th is book is a cross-cultural reference volume of all attested numerical notation systems (graphic, nonphonetic systems for representing numbers), encompassing more than 100 such systems used over the past 5,500 years. Using a typology that defi es progressive, unilinear evolutionary models of change, Stephen Chrisomalis identifi es fi ve basic types of numerical notation systems, using a cultural phylo- genetic framework to show relationships between systems and to create a general theory of change in numerical systems. Numerical notation systems are prima- rily representational systems, not computational technologies. Cognitive factors that help explain how numerical systems change relate to general principles, such as conciseness and avoidance of ambiguity, which also apply to writing systems. Th e transformation and replacement of numerical notation systems relate to spe- cifi c social, economic, and technological changes, such as the development of the printing press and the expansion of the global world-system. Stephen Chrisomalis is an assistant professor of anthropology at Wayne State Uni- versity in Detroit, Michigan. He completed his Ph.D. at McGill University in Montreal, Quebec, where he studied under the late Bruce Trigger. Chrisomalis’s work has appeared in journals including Antiquity, Cambridge Archaeological Jour- nal, and Cross-Cultural Research. He is the editor of the Stop: Toutes Directions project and the author of the academic weblog Glossographia. Numerical Notation A Comparative History Stephen Chrisomalis Wayne State University CAMBRIDGE UNIVERSITY PRESS Cambridge, New York, Melbourne, Madrid, Cape Town, Singapore, São Paulo, Delhi, Dubai, Tokyo Cambridge University Press The Edinburgh Building, Cambridge CB2 8RU, UK Published in the United States of America by Cambridge University Press, New York www.cambridge.org Information on this title: www.cambridge.org/9780521878180 © Stephen Chrisomalis 2010 This publication is in copyright.