Aux intéressés
Voici les résultats de mes recherches sur le sujet.
Premièrement l'opinion de Jim KE6RK, l'auteur de Airmail. Ce texte provient de l'AIde de Airmail:
For single-port "dongles", our recommendation is the "Keyspan" adaptors (model 19HS) which give consistently good results on most computers. (Older models 19QI and 19QW work well also, avoid model "19" with no suffix, it is a low-speed device). These are inexpensive ($25-40) and available from www.cdw.com and other outlets, but not generally available in most computers stores. Keypan also makes a box with 4 serial ports (model 49WLC) which works well with Airmail and our fax program, but occasional problems are reported with other software. The Startech serial-port adaptor has also been recommended by others, and is around $30. Edgeport also makes a single-port adaptor that would be strongly recommended except for its relatively high cost (around $60).
There are lots of cheap USB adaptors with bad drivers which will not work properly, or (worse by far) make your computer unstable. Many problems have been reported by users of Belkin, Aten and other off-brand single-port dongles, as well as D-Link and Quatech's QSU-series boxes. (Belkin's F5U103 adaptor is widely distributed but is a terrible prouct- expensive, large and badly-written drivers). Some of the cheapest single-port adaptors also omit the RS232 control lines (requiring that Airmail's "Ignore CTS" option be set).
There are two important issues to keep in mind when using USB ports: One is to make sure that you have the latest drivers, and the correct version for your operating system. If in doubt, go to the manufacturer's website and download the current drivers This is especially important if you have the latest version of Windows, verify that the drivers are labeled for that version, and are preferably "digitally signed".
L'opinion de Steve de l'équipe Winlink:
From what I experience here:
Keyspan = yes
Startech = yes
Edgeport = yes
Belkin = no!
Steve, k4cjx
Moi, j'ai du Edgeport et j'en suis très satisfait. J'ai souvent rencontré des gens qui avaient des adaptateurs achetés aux magasin d'ordinateurs du coin.
L'expérience est souvent mauvaise, ça marche rarement du premier coup et le port "COM:" change de numéro selon l'endroit où on le branche et l'ordi plante sans raisons apparentes (Mauvais pilotes). De là vient la très mauvaise réputation de ces appareils. Le plus commun et le pire de tous est le Belkin.
Je n'ai pas d'expérience avec le Keyspan mais, avec la recommandation de Jim, j'ai confiance en ce produit.
- Certifié par Microsoft
- Fonctionne sur Vista
- Il est produit par une compagnie fiable:
http://www.tripplite.com/EN/products/model.cfm?txtSeriesID=518&EID=13385&txtModelID=3914
Disponible par internet au Canada à 36.97 $CDN
http://www.cdw.ca/shop/products/default.aspx?EDC=611482
Sinon il y a celui offert par Farallon:
http://www.farallon.us/webstore/c16.html
Tant qu'à y être, pourquoi pas en commander deux... Il y aura sûrement un GPS à brancher.
Jean-Marie
VE2AEY
Le réseau du Capitaine
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