Talk:SMA connector
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SMA should be an article in itself. Scott 19:05:23, 2005-09-07 (UTC)
Why? Light current 19:06, 7 September 2005 (UTC)
Why is there a reference to particle accelerators in the first paragraph? SMA connectors are used in mass numbers for other much more mundane things too. 24.59.193.0 14:52, 25 May 2006 (UTC). I took it away sincer it was only confusing. saved here for future recalls: "The SMA connector is frequently used in mass numbers in particle accelerators. The connector is used in conjunction with Heliax cable as a connector for X and Y in Particle beam diagnostics, after Quadrupole magnets. The AC feedback signal, X and Y are fed through four SMA connectors from the beam position monitor to the beam monitor instrumentation."
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[edit] Reverse Polarity
The description of reverse-polarity SMA connectors contradicts the images. The top image of a standard SMA connector shows a male connector (with a pin rather than a socket in the centre). The bottom photograph, according to its caption, shows a male RP-SMA connector, which has a pin and a different housing from the ordinary male SMA connector. But the text states that male SMA and RP-SMA connectors differ by their centre contact, not their housing, and that a male RP-SMA connector has a receptacle (socket) in the centre. Does anyone know which is right, the caption or the text? Please correct the article if you do. 212.126.219.114 07:37, 1 June 2006 (UTC)
- The article is correct, but it is missing one important piece of information. It is not enough to specify, for example, "SMA Female connector". Male/Female refers to the centre Pin/Socket. i.e. Pin for Male, Socket for Female. But you also have to specify whether you are talking about a Plug or a Jack. A Plug has the thread on the inner surface, while a Jack has the thread on the outer surface.
- "Standard-Polarity" SMA specifies that Plugs are Male and Jacks are Female.
- "Reverse-Polarity" SMA specifies the opposite: Plugs are Female and Jacks are Male.
- So the top image shows a (standard polarity) SMA Plug (with centre pin), and it is captioned correctly. The lower image shows a Reverse-Polarity SMA Jack (with centre pin). It is captioned correctly, except that the word Jack is omitted.
- BenKinsella 17:04, 29 March 2007 (UTC)
[edit] Tool
Why is there a reference to the "Snap-On" tool company on this page? The tool company has no relationship to an RF connector that can be pushed on and pulled off without turning a nut.
Agreed. I removed the link Amram99 24 Oct 2006 (UTC)
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- Could it be that, as I have noted below, a torque spanner should be used to tighten the SMA connector especially when used at microwave frequencies? --jmb 09:30, 6 March 2007 (UTC)
[edit] Thread Size
Could someone add the thread size for a female SMA connector? I'm trying to find a nut to hold one in place on an aircraft panel.
[edit] Microwave
It offers excellent electrical performance from DC to 18 GHz.
- Can this be expanded to say that there are SMA connectors for use above 18 GHz. Also when used at microwave frequencies a torque spanner should be used to tighten the connector. --jmb 09:30, 6 March 2007 (UTC)
