Are they acceptable for avionics use?

TNC connectors are fine.
The military uses them all the time.

Dave

John Smith wrote:
> In article >,
> Jim Stewart > wrote:
>
>> Are they acceptable for avionics use?
>
> I wouldn't recommend them.
> Maybe as a temporary emergency repair, but not for something you want to
> depend on.

Dave wrote:
> TNC connectors are fine.
> The military uses them all the time.

No, I was referring to solderless BNC connectors
that twist onto the stripped coax.

> Dave
>
> John Smith wrote:
>> In article >,
>> Jim Stewart > wrote:
>>
>>> Are they acceptable for avionics use?
>>
>> I wouldn't recommend them.
>> Maybe as a temporary emergency repair, but not for something you want
>> to depend on.

Sorry, i misread the post. my Misteak.

John was 100% correct.



Jim Stewart wrote:
> Dave wrote:
>> TNC connectors are fine.
>> The military uses them all the time.
>
> No, I was referring to solderless BNC connectors
> that twist onto the stripped coax.
>
>> Dave
>>
>> John Smith wrote:
>>> In article >,
>>> Jim Stewart > wrote:
>>>
>>>> Are they acceptable for avionics use?
>>>
>>> I wouldn't recommend them.
>>> Maybe as a temporary emergency repair, but not for something you want
>>> to depend on.

On 2008-01-14, Jim Stewart > wrote:
> Are they acceptable for avionics use?

They're not acceptable for any use, IMAO. I've never seen one that was
connected well enough to hold together for five minutes or work well enough
to get signal through. I've had too many bad experiences with them to ever
use one.
--
Jay Maynard, K5ZC http://www.conmicro.com
http://jmaynard.livejournal.com http://www.tronguy.net
http://www.hercules-390.org (Yes, that's me!)
Buy Hercules stuff at http://www.cafepress.com/hercules-390

On Jan 14, 6:53*pm, Jim Stewart > wrote:
> Are they acceptable for avionics use?

I wouldn't use them for anything - let alone on an airplane.

My advice would be to get some RG-142 coax cable and the correct
connectors for it. Then invest in (or borrow) the correct crimpers,
and learn how to properly install the connectors. Then do the job in
your plane. You won't be sorry - the RF cables in my plane have been
working fine since about 1979.

David Johnson

Dave wrote:
> On Jan 14, 6:53 pm, Jim Stewart > wrote:
>> Are they acceptable for avionics use?
>
> I wouldn't use them for anything - let alone on an airplane.
>
> My advice would be to get some RG-142 coax cable and the correct
> connectors for it. Then invest in (or borrow) the correct crimpers,
> and learn how to properly install the connectors. Then do the job in
> your plane. You won't be sorry - the RF cables in my plane have been
> working fine since about 1979.

I'm going to do just that. I need a
dozen assorted jumpers for the lab anyway.

Thanks to all.

>
> No, I was referring to solderless BNC connectors
> that twist onto the stripped coax.

Those connectors can be best described by this highly technical term:
utter ****e.

I have a handful of them that I once threw into my trash can. My trash
can threw them back at me.

On Jan 14, 4:48*pm, John Smith > wrote:
> In article >,
> *Jim Stewart > wrote:
>
> > Are they acceptable for avionics use?
>
> I wouldn't recommend them.
> Maybe as a temporary emergency repair, but not for something you want to
> depend on.

I always thought that the half turn connectors that are the standard
in avionics were called BNC. If not, what are they called?

-Robert

On Sat, 19 Jan 2008 07:42:02 -0800 (PST), "Robert M. Gary" >
wrote:

> On Jan 14, 4:48*pm, John Smith > wrote:
> > In article >,
> > *Jim Stewart > wrote:
> >
> > > Are they acceptable for avionics use?
> >
> > I wouldn't recommend them.
> > Maybe as a temporary emergency repair, but not for something you want to
> > depend on.
>
> I always thought that the half turn connectors that are the standard
> in avionics were called BNC. If not, what are they called?

They are; the discussion is related to how the connectors are attached to the
cables themselves. The reference to "Twist-on" refers to connectors that are
merely jammed onto the cable by hand and are expected to keep electrical contact
by friction alone. Folks are recommending avoidance of these in favor of those
that attach using tools specifically designed for the task.

Me, I just go to the local computer store and buy some of the pre-made RG-58
cables with BNC connectors already attached.....

Ron Wanttaja

Those ARE BNC, Robert. What the OP was asking was whether or not the way
the cable was attached to the connector could be one of the kind where you
simply strip the outer sheath back an inch or so, strip the center insulator
back a quarter of an inch, put a threaded ferrule over the outer shield of
the connector, slide the inner insulator into the body of the connector and
then thread the ferrule into a mating thread on the connector. No crimp, no
solder.

The consensus, and I heartily agree, that those "twist on" BNC connectors
aren't worth powdered bat **** as an RF connector, much less an aircraft RF
connector.

Jim

--
"If you think you can, or think you can't, you're right."
--Henry Ford

"Robert M. Gary" > wrote in message
...
On Jan 14, 4:48 pm, John Smith > wrote:
> In article >,
> Jim Stewart > wrote:
>
> > Are they acceptable for avionics use?
>
> I wouldn't recommend them.
> Maybe as a temporary emergency repair, but not for something you want to
> depend on.

I always thought that the half turn connectors that are the standard
in avionics were called BNC. If not, what are they called?

-Robert

Ron Wanttaja > wrote:

> Me, I just go to the local computer store and buy some of the pre-made RG-58
> cables with BNC connectors already attached.....

Done that lately, Ron?

BNC is used with 10Base2 ethernet cables. 10Base2 has been obsolete for
almost a decade. Maybe you shop in a better computer store than I do, but
I know all the ones I frequent wouldn't even know what a coax network
cable was.

--
Frank Stutzman
Bonanza N494B "Hula Girl"
Boise, ID

On Sat, 19 Jan 2008 16:04:59 +0000 (UTC), Frank Stutzman
> wrote:

> Ron Wanttaja > wrote:
>
> > Me, I just go to the local computer store and buy some of the pre-made RG-58
> > cables with BNC connectors already attached.....
>
> Done that lately, Ron?
>
> BNC is used with 10Base2 ethernet cables. 10Base2 has been obsolete for
> almost a decade. Maybe you shop in a better computer store than I do, but
> I know all the ones I frequent wouldn't even know what a coax network
> cable was.

I bought some cables when I installed the handheld in the panel, about two-three
years ago. I called the place a "computer store" because I bought my VIC-20
from them about twenty-five years ago, and old habits die hard. :-)

But they haven't sold actual computers for about fifteen years, switching to
electronics parts and test equipment for the local hobbyists and repairmen.

Ron Wanttaja

RST Engineering wrote:
> Those ARE BNC, Robert. What the OP was asking was whether or not the way
> the cable was attached to the connector could be one of the kind where you
> simply strip the outer sheath back an inch or so, strip the center insulator
> back a quarter of an inch, put a threaded ferrule over the outer shield of
> the connector, slide the inner insulator into the body of the connector and
> then thread the ferrule into a mating thread on the connector. No crimp, no
> solder.
>
> The consensus, and I heartily agree, that those "twist on" BNC connectors
> aren't worth powdered bat **** as an RF connector, much less an aircraft RF
> connector.

I dunno about that, Jim. Prices seem to be going up.

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