What’s the difference between MCX and MMCX antenna?

bjornh

Can anyone please explain the differnet between the MCX (use by Navman 4410) and the MMCX (used by Tomtom) for external GPS-antenn?
/Björn H

lbendlin · Posted: Thu Mar 11, 2004 5:42 pm Post subject:

That's an excellent question. Here's what Google says

The MCX Family (MCX and MMCX) are snap-on 50 Ohm connectors similar to SMB that follow the European CECC 22220 standard. M/A-Com part OSX is equivalent to the MCX. Both MCX and MMCX are rated for 0 - 6 GHz operation. The MCX is about 70% of the size of an SMB (but not compatible with the SSMB) and is rated at about 250 V (max working voltage) and the MMCX is about 50% of the size of an SMB and rated at about 170 V max working. It appears the MMCX stands for Micro-Mate C. These connectors are designed to permit at least 500 interconnect cycles.
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bjornh · Posted: Thu Mar 11, 2004 6:04 pm Post subject:

Thanks, you make it totally clear!
//Björn H

GPSinC3 · Posted: Thu Mar 11, 2004 7:29 pm Post subject:

So what GPS receivers use what connectors, I assume the connectors are different not the technical specs. I have an ext aerial for a Globalsat BT 308 I think this is MMX.

I might be selling it, so helpful to know if there is a list, I can't see anything in the Comparision databases

lbendlin · Posted: Thu Mar 11, 2004 7:44 pm Post subject:

To be honest, we haven't figured it out ourselves yet. That's why it's not in the comparison database. Maybe you can help us collect the data. From the description it would be possible to identify them by measuring the diameter...

You meant MCX, right? :-)
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bjornh · Posted: Thu Mar 11, 2004 8:43 pm Post subject:

It's in the comparison database for BT-devices! There is two item:
External Antenna (MCX) (GPS Receiver)
most of the BT-GPS and

External Antenna (MMCX) (GPS Receiver)
used by Deluo, Leadtek, SysOnChip and Tomtom

//Björn H

lbendlin · Posted: Thu Mar 11, 2004 9:48 pm Post subject:

What I wanted to say is that the data in the comparison database is unconfirmed. So if you have one of these devices, and know exactly what connector ithas, feel free to tell us in the Comparison database forum
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