C A I R O
Communications Audio Interface for Remote Operations
An Overview of CAIRO
The principles of CAIRO unification may be summarised as :
|for radio network voice-message services, particularly at emergencies|
|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|
|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 :
"No man is an Iland, intire of it
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.
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
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)
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
Accessories to "Home-Brew"
|The Palm-Springs||The Sturdy Line|
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.
G7KPF's Ham Sites Links
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
Logo URL www.aston.ac.uk/~bestpj/cairo/logo.gif