[Yaesu] What is wrong with SMA?

Jack/NA7RF vhfplus at bmg50.com
Tue Jan 9 23:37:34 EST 2007


Also, there is a tendency to over-tighten an SMA. They have very 
specific maximum torque limits and going significantly beyond can do 
nasty things to the connector...put the pliers away :>)

Jack, NA7RF

John Geiger wrote:
> And I would bet that most of the reviewers complaining
> about SMA connector had no idea as to the
> connect/disconnect life cycle of them.
> 
> 73s John W5TD
> 
> --- Rudy Marcelletti <k8swd at verizon.net> wrote:
> 
>> BNC has a greater connect/disconnect life cycle than
>> SMA and is more rugged
>> and faster to connect/disconnect.  I read somewhere
>> that average life of SMA
>> is roughly 300 or so cycles of connect/disconnect
>> and BNC is in the 1,000's.
>> People want smaller, yet feature packed radios every
>> year, so SMA was added
>> to this end.  It's not like we are constantly
>> connecting and disconnecting
>> antennas and if you are, you need another HT and/or
>> a mobile rig.  Rudy,
>> K8SWD
>>
>> -----Original Message-----
>> From: yaesu-bounces at mailman.qth.net
>> [mailto:yaesu-bounces at mailman.qth.net]
>> On Behalf Of KBØNLY
>> Sent: Tuesday, January 09, 2007 10:29 AM
>> To: Yaesu Reflector
>> Subject: Re: [Yaesu] What is wrong with SMA?
>>
>> I like the SMA on my VX7R compared to the BNC
>> connector.  First of all the 
>> SMA give a better, more solid, connection in my
>> opinion.  Every HT I ever 
>> had with a BNC got loose and wobbly after use.
>>
>> Sure, the SMA does have its drawbacks.  Its fragile
>> in many ways, I've seen 
>> guys cross thread them, and I have seen HT's with
>> the SMA snapped off from 
>> being dropped with a dual band whip on it.  And then
>> you have people who 
>> hang a SO-239 to SMA adapter off it and wonder why
>> its broke, etc..
>>
>> Overall though, I would rather have the SMA.  If you
>> have a current HT with 
>> SMA and want BNC they make a nice low profile
>> adapter to screw onto the 
>> radio and put whatever you want for a BNC antenna on
>> instead.
>>
>> 73,
>>
>> Scott
>>
>>
>>
>> ----- Original Message ----- 
>> From: "John Geiger" <johngeig at yahoo.com>
>> To: <icom at mailman.qth.net>; <yaesu at mailman.qth.net>;
>>
>> <kenwood at mailman.qth.net>
>> Sent: Tuesday, January 09, 2007 9:19 AM
>> Subject: [Yaesu] 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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