Cavers Mailing List     № 7687

Рекомендованные проекты пещерного радио

Автор: Victor Komarov
Дата: 4 Aug 2005

Всем добрый день.

Пересылаю сообщение David Gibson Technical Editor, BCRA Cave Radio & Electronics Group (Технический редактор Группы исследований и разработок пещерного радио и электроники Британской Ассоциации Пещерных Исследований)
из спелеорассылки рассылки посвящённой электронике в спелеологии - [Speleonics]

Под пещерным радио понимаются пещерные средства связи, поэтому подземный телефон к нему тоже относится.

David Gibson посылает анкету, чтобы на основании полученных данных выяснить какие типы устройств в каких местах применяются.

Результаты анкетирования будут опубликованы.

Всего доброго,
--
Виктор Комаров < >

----- Original Message -----
From: "David Gibson"
To: "Speleonics"
Sent: Wednesday, August 03, 2005 4:06 PM
Subject: [Speleonics] Recommended cave radio designs


> Thank you to those who responded to my request for information about
> cave radio designs. In case anyone missed it, here's another chance to
> respond.
>
>
> I would like to compile a list of cave radio designs currently
> recommended for people to build. By "cave radio" I mean induction radio,
> earth-current or single-wire telephones (which arent radio, I know :-).
>
> For example, in the UK, it would be advised that people built a HeyPhone
> because PCBs are available; there is a lot of help and advice available,
> and there are a lot of the radios in use. It would be pointless, if not
> perverse, to recommend any other, obsolete, design.
>
> In France and adjacent countries, the "Systeme Nicola" would, I guess,
> be the recommended design.
>
> In Australia, there have been several SWT designs that are "supported".
>
>
> I would like to compile a list on a country-by-country basis, which I
> will publish on my web site, and in the CREG journal.
>
> What I am *not* looking for (and will not publish details of) are
> designs for which there is no publicly-available information, or which
> use long-obsolete parts, or which have only ever reached a prototype
> stage. I am looking for *established* designs that are in use by a
> number of caving groups - particularly by rescue organisations; and
> preferably designs that are *still* actively supported by the designer
> or someone else.
>
> Probably the best way to do this is for you to email this mailing list,
> answering the specific questions below. In this way, people can correct
> or update any out-of-date information.
>
> - - - - - snip here - - - - - -
>
>
> Cave Radio Survey: Cave radios recommended for current use
> ----------------------------------------------------------
>
> 1. Name of Device
>
> 2. Name of Designer and Date of Design
>
> 3. Country of origin
>
> 4. Number of devices currently in use (approximately) by rescue groups
>
> 5. Total number of devices currently in use (approximately)
>
> 6. Main countries where device is used
>
> 7. Location of published design info.
>
> - For info on paper: is the publication still available [where from?];
> has it been lodged in a copyright library for posterity?)
>
> - For URLs: is the site still maintained? [Who by?]. Is there a
> permanent public archive of the site lodged anywhere?
>
> - Please give ISSNs, ISBNs, where these exist.
>
> 8. Is PCB design data available?
>
> 9. Are manufactured PCBs available?
>
> 10. How can builders receive help and advice?
> (E.g. does a group, club or individual provide support?)
>
> 11. What type of device is this?
> (E.g. induction radio, earth-current radio, single-wire telephone)
>
> 12. Frequency and modulation method?
> (e.g. 87kHz USB)
>
> 13. Anything else you want to add?
>
>
> --
> David Gibson Technical Editor, BCRA Cave Radio & Electronics Group
>
> _______________________________________________
> Speleonics mailing list
>
> http://lists.altadena.net/mailman/listinfo/speleonics



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