[ICOM] What is wrong with SMA?
Jay
ad5pe at sbcglobal.net
Tue Jan 9 23:21:19 EST 2007
They're not designed for repeated disconnect/reconnect cycles, and they're
structurally a little weak. If you leave the stock antenna on it forever,
or replace it once with an aftermarket (and maybe once more when you shut it
in a door) they are fine.
But if you put an adapter to SO-239 (big and heavy) then screw a mobile
antenna coax to it every morning, then undo it and put the duck back on
(without adapter) when you get to work, then repeat for the trip home (4
discos/reconnects every day) you'll be replacing the jack on the radio in 6
months. It's rated for 500 cycles (IIRC) - then the socket springs get
sprung and the center pin doesn't make good contact.
And that's if the aftermarket antenna (or SO-239 adapter) doesn't torque it
too much and break it off the board.
Jay
AD5PE
-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of John Geiger
Sent: Tuesday, January 09, 2007 09:20
To: icom at mailman.qth.net; yaesu at mailman.qth.net; kenwood at mailman.qth.net
Subject: [ICOM] What is wrong with SMA?
I have been reading some equipment reviews on a website, and many reviewers
complained about an HT having a SMA connector instead of a BNC. So what is
wrong with SMA connectors? I like them better than BNC connectors since
they are smaller and are just as easy to use.
73s John W5TD
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