1
\$\begingroup\$

Can someone tell me what kind of solder or conductive hardening paste is used here to fix the inner conductor of the cable to the pin. I tried soldering of the pin to such cables with tin, but this does not stay fixed when applying stronger tension to the RG cable and the rf-matching box is not able then to match impedance.

This solution (silver like glue from inner conductor to pin) looks professional und not soldered, but what is used here and is there a good tutorial?

enter image description here

\$\endgroup\$
12
  • \$\begingroup\$ You did bad soldering, that's the cause it popped off. If you want true professional, then use crimping tools. \$\endgroup\$ Jul 26 '20 at 20:04
  • \$\begingroup\$ @MarkoBuršič I tried to use crimp connetors but have to say when bending such thick 8-10mm RG cables the crimping is not stable enough. In best case there is no tension on the cables and I already use 90° N-type connectors, but some force on the pin I cannot avoid in our setup. The soldering in the image is not done by me, but I want to know how this was done, as this is more professional/stable than crimping and the whole connector is a screw type like here: \$\endgroup\$ Jul 26 '20 at 20:19
  • \$\begingroup\$ google.com/… \$\endgroup\$ Jul 26 '20 at 20:19
  • \$\begingroup\$ The cable on the picture is soldered without any special paste or magic, simple soldering. As for your use of cable: you have to know that not any cable may be bent with small radius, you do make a relief loop instead. And: soldering is not professional, crimping is. \$\endgroup\$ Jul 26 '20 at 20:26
  • 2
    \$\begingroup\$ I use paste solder, a hot air gun and a soldering iron to solder center pins in coax connectors (for connectors that do not allow crimping). Fill the pin with paste, apply extra to the wire near the pin, heat up the pin and conductor, then hit it with a hot iron and some additional solder to complete the joint. This helps to produce a good joint without getting solder on the outside of the pin, which usually prevents assembly of the connector. \$\endgroup\$ Jul 27 '20 at 0:08
1
\$\begingroup\$

I use paste solder, a SMD rework hot air gun with a small nozzle and a soldering iron to solder center pins in coax connectors (for connectors that do not allow crimping).

Fill the pin with paste, apply extra to the wire near the pin, heat up the pin and conductor, then hit the conductor (not the pin) with a hot iron and some additional solder to complete the joint. This helps to produce a good joint without getting solder on the outside of the pin, which usually prevents assembly of the connector

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.