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190-00133-02 Rev B 2-2
2.3.3 Antenna Test Cable Connector
The antenna test cable incorporates a BNC connector at the test fixture antenna and a male BNC blindmate connec-
tor (GARMIN P/N 330-00198-00) at the transponder. Figure 2-2 shows the connector. Follow accepted industry
practices when installing the BNC connector. Use the following instructions when installing the blindmate BNC.
1. Trim coax outer insulation back ½ inch.
2. Trim braid (not center conductor or insulation) back ¼ inch.
3. Strip insulation back 0.120.
NOTE
If the outside diameter of the coax braid is smaller than the inside diameter of the
center connector sidewall opening, place the ferrule over the coax braid, flush against
the coax outer insulation before performing the next step.
4. Insert cable (center conductor, dielectric and shield braid) through the sidewall of the connector and solder the
center conductor to the center pin of the connector.
NOTE
When using low-loss cable, it may be necessary to flatten the solid wire center
conductor slightly so it can fit the slot on the RF connector center pin. When solder-
ing, avoid applying excess heat to the connector body, and center conductor insula-
tor.
5. Heat the outside of the connector sleeve and, at the same time, apply solder between the braid and the sleeve.
6. Continue to apply heat until the solder flows evenly.
7. Install 50 ohm match.
8. Insert connector cap and tack solder in two places.
Figure 2-2. Blindmate Antenna Connector