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R: Antenna COnnectors ARGH!



Hi Paul and Bob

Right.
The spring of my torque wrence is calibrated to bend out of gear
by 90 deg  applying a weight of a pound  or about 453 gram over its
handle at a distance of  8 inch from the SMA connector.

8 inch-pounds is also recommended for SMA connectors
by Hewlett Packard.

73" de i8CVS Domenico



----- Original Message -----
From: Paul Williamson <kb5mu@AMSAT.Org>
To: Bob Bruninga <bruninga@usna.edu>
Cc: <amsat-bb@AMSAT.Org>; TAPR APRS SIG <aprssig@lists.tapr.org>
Sent: Monday, June 03, 2002 6:42 PM
Subject: Re: [amsat-bb] Antenna COnnectors ARGH!


> At 12:24 PM 6/3/2002 -0400, Bob Bruninga wrote:
> >I was never really torquing down on
> >the SMA, but only twirlling it on until finger tight.
>
> On the other hand, note that the proper torque for an SMA connector is
> quite modest (8 inch-pounds is typical). If you've never had access to a
> calibrated SMA torque wrench, you might be tempted to overtorque the
> connector. Use a *small* wrench, push it with your fingertips, and get the
> connector *just snug* and you'll be about right. Any more than that and
> you're probably damaging the connector. If you want to be sure, get a
> torque wrench.
>
> Once the connector has been over-torqued, I guess that all bets are off.
> You may need to overtorque it every time, or you may need to replace it.
>
> 73  -Paul
> kb5mu@amsat.org
>
> ----
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