[Azimov]

You have a bad solder connection or you soldered it in the wrong place. Check the location again, and resolder. Here's some tips for getting a factory like connection using the dreaded stranded wire. First, cut the old, soldery, snaggled end off the wire. Strip off the insulation about a quarter inch back. Twist the wires between your thumb and forfinger to wrap em up neat. Now, this is the most important part, TIN that sucker before you do anything with it! Put the wire in a helping hand or some other method to keep it imobile and at a good soldering angle. Touch your hot iron to the stripped part of the wire wait a beat or two and then touch your solder to the wire with your other hand. Let the solder melt and slowly pull your iron down the wire and off the end. This should leave a thin coat of solder permiating the wire strand. You don't want a big glob there, just enough to coat the wire. This works best with a rosen core electronics solder. Next, find the right spot on the PCB that the antenna wire solders to. There is probably a piece of the old wire still in the thru hole on the PCB. It would be best to remove this with an old component lead or a straight pin as you melt the old solder. A solder sucker or wire braid will help clean the old solder off so you can see the left over end. You can insert your new, freshly tinned wire through the hole and solder for a factory like connection. But, if you don't want to hassle with cleaning the hole, just touch your iron to the old solder and when it softens add your newly trimmed and tinned wire on top til the two join. the tinning is the most important part. Especially with stranded wire.