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C A I R O |
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Communications Audio Interface for Remote Operations |
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INDEX |
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C A I R O |
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Communications Audio Interface for Remote Operations |
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INDEX |
The principles of CAIRO unification may be summarised as :
| Communications | ||||
| for radio network voice-message services, particularly at emergencies | ||||
| Audio Interface | ||||
| the pre-service engineering of communications equipment ; | ||||
| A | ccessories : | devices for listening, speaking and transmission control (PTT) | ||
| B | aseband signals : | adaptors and line cables for universal electrical compatibility | ||
| C | onnections : | plugs and sockets (DIN) with a standardised signal-pin format | ||
| D | istribution : | boxes for multiple terminations and modules for augmentations | ||
| Remote Operations | ||||
| the in-service organisation of communications stations | ||||
| E | fficiency : | optimise station layout to meet specific operational requirements | ||
| F | lexibility : | allow for variable approaches to suit different circumstances | ||
| G | enerality : | provide sufficient (but not excessive) facilities for most occasions | ||
| H | armony : | exercise personal preferences in operating styles and techniques | ||
The case for unification through standardisation :
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"No man is an Iland, intire of it
selfe; |
The need for unification, through the standardisation of radio equipment (and operating techniques), was first identified within RAYNET - the Radio Amateurs' Emergency Network (UK) and CAIRO was developed as a practical solution for members of that organisation to adopt.
However, CAIRO is equally applicable in other organisations which provide a communications service.
Readers of the material at this Web Site, who are members of other such organisations, are invited to accept that explanations based on RAYNET and its operations, may be taken to include themselves where appropriate.
Equally, they are cautioned that if "Type-Approval" conditions apply to their apparatus, some CAIRO techniques (particularly in CAIRO-8) might contravene that legislation and should NOT be implemented.
CONTENTS
During March 2000, I simplified many of the CAIRO site URLs, so I'm sorry if you were first pointed here via a "duff" link.
INDEX BY SECTION
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CAIRO |
CAIRO-8 |
Talk-Through |
Supplementary Material |
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INDEX BY TOPIC
The HOIME = "Here's One I Made Earlier"
CAIRO is an entirely practical idea and to prove it, I am pleased to illustrate several of the chief items with a photograph.
Simply click on such a photo if you wish to enlarge it.(If the enlargement reveals scratches or dirt on the item, there's your proof !)Paragraphs with suffix, X, are eXtra (since the paper Manual)
1 Remote Operations RO .1 Clerical Organisation RO .2 Simultaneous Operations RO .3 CAIRO RO .4 CAIRO Connectors RO .5 CAIRO Configurations RO .6 Operator Accessories RO .7 Accessory Combinations RO .8 Dual Operator Outlet Box RO .9 Auxiliary Features RO .10 Side-Tone Enhancement RO .11 A 'Caution'
2 CAIRO Engineering CE .1 CAIRO Signals CE .2 CAIRO Connections CE .3 Mechanical Integrity CE .4 Transceiver Adaptors CE .5 Series Adaptors CE .6 Active Adaptors CE .7 Interface Module CE .8 Dual Operator Outlet Box CE .8.X Construction Notes for The Dual Operator Box CE .9 Accessory Engineering CE .10 Binaural Ambience CE .11 Electret Capsules CE .12 Dual Rig Selection Box CE .13 CAIRO Augmentations
3 CAIRO-8 C8 .1 Augmented Operations C8 .2 Outlet Socket C8 .3 CAIRO-PALS C8 .4 Squelch C8 .5 d.c.-Power C8 .6 d.c.-Regulation C8 .7 Audio Line C8 .8 Engineering CAIRO-8 C8 .9 Surge protection C8 .10 Isolated Audio C8 .11 Opto-Isolation C8 .12 Loose-Tail Connections
4 RAYNET Packet RP .1 CAIRO-8 and TNCs RP .2 "Clandestine" Packet RP .3 DCD Logic RP .4 PTT Logic RP .5 Acceptability RP .6 Relayed "Clandestine" RP .7 Portable Packet RP .8 Rationale RP .9 DCD-State Boards
5 CAIRO Installations CI .1 CAIRO Loose-Tails CI .2 Sturdy Lines CI .3 Spectral Paints CI .4 Portable Sturdy Lines CI .5 Anchored Tails
6 Talk-Through : CAIRO-8 Relays Variable Network Planning TT .1 Temporary Relays TT .2 Cross-Band Relays TT .3 In-Band Relays TT .4 Isolation by Separation TT .5 Instant Relays TT .6 Wireless Links TT .7 Dual-Band Transceivers TT .8 CAIRO-8 TTUs
7 Talk-Through : CAIRO Relays CR .1 PALS-Generation CR .2 Audio Gating CR .3 Noise-Gating CR .4 Logic States CR .5 Sub-Systems CR .6 Anti-Hunting CR .7 CAIRO TTU Modules CR .8 Bench Set-Up Procedures CR .9 Manning Operator Duties
8 Talk-Through Installations= Relay Installations RI .1 Strategic Sites RI .2 Grab-Bag RI .3 Site-Plan RI .4 Frequency Plans RI .5 Cross-Band Relay Channels RI .6 In-Band Relay Channels RI .7 "MEANS" Channels RI .8 Talk-Through Permits RI .9 Engineering Channels RI .10 Active Augmenting Modules
Appendices
Accessories to "Home-Brew"
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| The Palm-Springs | The Sturdy Line | ||
CAIRO DATA CARD CAIRO COMPONENTS Handy Hints Grab-Bag (personal kit) "Black-Bag" TTRs: Manning Operator Instructions CAIRO Users If you wish to be included as an "active" CAIRO-ist please E-mail.
Material on this Web Site is based upon a former document (CAIRO Manual): ISBN 1 85449 008 7
©Peter Best - G8CQH
Aston University, Aston Triangle, Birmingham, B4 7ET (UK)
A selection of Web Sites relating to CAIRO, Emergency Communications, Amateur Radio, etc.
GB3EH - a Repeater (RB8) with its Tx and Rx linked to its Logic in CAIRO-8. CAIRO-context Engineering Details
Webmasters : To index into this CAIRO site, please use,
CAIRO - a unified interface for Transceivers
and the URL www.aston.ac.uk/~bestpj/cairo
