retasker(at)optonline.net
Guest
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 Posted: Wed Sep 20, 2006 7:09 pm Post subject: BNC "Blindmate" Coax Connector: More Information |
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r falstad wrote:
| Quote: | Folks,
I neglected to include some information in my original post on this.
The "blindmate" connector that Garmin provides for its transponder
calls for a 50 ohm match bushing which goes inside the connector after
the coax cable is soldered up. That is why I can't use a regular BNC
connector.
I also took another look at the instructions. While not absolutely
explicit, I believe the instructions do call for the braid to go
inside, not outside, the connector and for the connector to be heated
up to flow solder between the inside of the connector and the braided
shield.
You can read the installation instructions by going to Garmin's web
site, then to "Support", then drilling down to the GTX 320A
transponder and clicking on Installation Manual "Download". The
instructions for the blindmate connector are on document pages/pdf
pages 7/11 and 8/12.
Does this additional information trigger any other suggestions? I
think I'll just have to keep applying heat until I "git 'er done".
Best regards,
Bob
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Okay, I took a look and the GTX-320A directions are similar to the UPS
SL-70 installation. Again, I don't know the exact dimensions of your
connector but the directions for the SL-70 says to spread the outer
braid and push the coax (center conductor, insulator and inner shield
braid) into the recess with the outer brain formed around the outside of
the entrance, then solder the braid to the connector after soldering the
center conductor to the post. My connector also includes the ferrule
and the matching chunk of metal. The pictures look almost identical
except mine does not mention the ferrule.
Dick Tasker
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