Question about Atlantis Crystal Uniden Atlantis 250 Handheld VHF Radio (BLACK)

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Broken antennae mount

How do I remove the pcb in order to replace the antennae base? i am meeting some resistance from either the top dials or ptt button and don't want to force it.

I am on a ship at sea and cannot send in for repairs.

Thank you

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Here is a link to the manual.

Posted on Jan 09, 2008


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How to gain access to replace coax cableto

Found this solution and hope it helps.....!

fairbank56 Registered User 4stars.gif clear.gif
Join Date: Apr 2007 Posts: 553 Re: Garmin GA 28 Antenna Repair Help, Please Sounds like a GA29 which was a replacement for the GA28. If this is the antenna, then yes, it can be opened up. I'm a service tech and have replaced the coax in many of these antenna's. It is no simple task. The top part of the antenna does unscrew but the threads are coated with silicone rubber. You will have to open it with a strap wrench which means you need to make a special mount to hold the lower section of the antenna as it takes a lot of torque to get the top to start turning loose from the rubber. I used an old brass 1"-14 thread mount that I drilled and tapped a 1/4-20 hole into the side of the threads. I screw this up into the base of the antenna and align the tapped hole with the slot in the side of the antenna to allow me to put a bolt in. Then clamp the modified mount into a vise. This allows you to unscrew the top without allowing the antenna to just unscrew from the mount. Your not likely going to be able to just clamp the lower part of the antenna into a vice as a tremendous amount of torque is needed to get the top loose. You can try it, but you might just end up crushing/damaging the lower part of the antenna in doing so. Once you get it open, you have to unsolder a small circuit board that the cable connector is directly soldered to. Then you can get to the nut that holds the connector to the base. You will also need to find a replacement crimp ferrule to be able to re-crimp the braid of the coax to the connector which also means you should have the proper crimp tool, and you have to trim down the cable dielectric in order to fit up into the connector when you redo the cable end.

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