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What's different about SMA 2.4 and 3.5mm?
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cliffliu



Joined: 10 Mar 2002
Posts: 31
Post04 Sep 2003 17:42   

What's different about SMA 2.4 and 3.5mm?
What's different about SMA 2.4 and 3.5mm?
Why called 2.4mm and 3.5mm?
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pool_77



Joined: 08 Aug 2001
Posts: 220
Post04 Sep 2003 18:15   
I think that type of used cable only.
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Post04 Sep 2003 18:15   

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flatulent



Joined: 19 Jul 2002
Posts: 4875
Helped: 324
Location: Middle Earth
Post04 Sep 2003 18:29   

improved
Connectors with names in mm are improved versions of older connectors and also new type connectors. They have less of an impedance bump than the older ones and operate at higher frequencies.

In some cases, they will mate with older connectors with reduced performance.
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marcomdd



Joined: 11 Jan 2003
Posts: 159
Helped: 3
Location: Rome
Post05 Sep 2003 11:04   
The name of the connector is 2.4mm not sma 2.4.

The name comes from the inner diameter of the outer conductror of the coax.
Less is the diameter, greater the working frequency of the connector.

2.4mm --> 50GHz
3.5mm --> 26GHz or (precision 3.5mm) 34 GHz.


Read also http://www.elektroda.pl/eboard/viewtopic.php?t=55293.
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